Seafood for Thought: Fish Need Homes Too

Oct 16, 2012 by  | Bio |  1 Comment »

A red cod swims in the healthy kelp forest on Cashes Ledge

Note: This blog was originally posted on One World One Ocean as part of their National Sustainable Seafood Month Campaign. 

When you buy a piece of cod, do you wonder how many are left in the ocean? Are you curious about what kind of gear was used to catch the fish? Gillnets? Hooks? Or, maybe it was a bottom trawler? Do you consider a different choice – maybe there is a more sustainable fish to buy?

These are important questions to ask, but there’s something more basic to consider as well. Where do these fish live? What essential requirements do these animals have to survive and thrive in the ocean?

Figuring out what “sustainable seafood” means is a familiar dilemma for New Englanders. We have some of the most productive fisheries in the world, but we also have some of the most heavily fished areas in the world. New Englanders work very hard to manage our fisheries, and there is much we are still learning. Yet, there is one simple fact that scientists and many fishermen are very confident about – if fish don’t have healthy habitat, then we don’t have fish.

We have some very special ocean places in New England. Cashes Ledge, an underwater mountain range about 80 miles off the coast of Maine, is home to the deepest and largest continuous kelp forest in all offshore waters along the US east coast. Stretching 22 miles long and 17 miles wide, Cashes Ledge provides food and shelter to an enormous diversity of creatures – from bottom-dwelling tube worms and sponges to endangered North Atlantic right whales and highly migratory blue sharks and Atlantic bluefin tuna. Cashes Ledge is also rich in a variety of groundfish including Atlantic cod, white hake, monkfish, haddock, and redfish. Many kinds of offshore sea birds can be found dining here, such as sooty shearwaters and Wilson’s storm-petrels.

The reason for such enormous diversity and richness lies in the mountain range itself, whose pinnacles interrupt the primary Gulf of Maine current and create a stunning oceanographic phenomenon known as internal waves, which carry high levels of nutrients and oxygen from the sea surface to the sea floor. This unusual circulation pattern results in an incredibly productive ecosystem. It’s no wonder that scientists have used Cashes Ledge as an oceanographic research lab for decades. It represents one of the healthiest existing marine habitats, and if more of the ocean was like it, there would be a lot more fish.

In 2002 many habitat areas in the Gulf of Maine, including Cashes Ledge, were protected from harmful bottom trawling, and these areas have begun a slow recovery. But as large reductions in the catch of cod, yellowtail flounder, and other groundfish loom in New England, there is increasing pressure to open these areas again. Places like Cashes Ledge must be protected if we are going to keep relying on our oceans to feed us and allow our ocean ecosystems to regenerate and thrive. These are irreplaceable resources, and the permanent protection of marine habitat should be a top priority for any sustainable fisheries management plan.

While it is important to think about fish in numbers – how many we catch, how big they are, how many are left – it is equally important to consider the ecosystem on a larger scale, with all its moving parts, dependent on each other for survival. When do the plankton bloom, and where? Where are the currents taking the food? Where will certain fish spawn if their favorite ledge is dragged? How will the animals adapt to our warmer, more acidic oceans?

So, as we celebrate National “Sustainable” Seafood Month, take a moment to consider where your seafood lived before it was on your plate. The ocean ecosystems that produce the oxygen in 2 out of every 3 breaths we take, regulate our climate, drive tens of billions of dollars of economic benefits, and provide us with considerable recreational activities won’t continue to produce such benefits unless we do a better job at protecting the basic components of a healthy ocean. And, while you enjoy the good decision you made about your sustainably caught fish, also be thankful that the fish came from a good home, and do what you can to help keep it that way.

Help support habit protection for special places like Cashes Ledge – click here. 

Providing Ocean Beauty, Health, and Wealth Demands NOAA Leadership

Oct 12, 2012 by  | Bio |  Leave a Comment

Cod at Cashes Ledge. Copyright Brian Skerry.
Cod swim through the kelp forest on Cashes Ledge

 

The beauty, health, and wealth provided by the productivity of New England’s ocean is illustrated in the diversity of ocean and coastal habitat found in the Gulf of Maine, Georges Bank, southern New England waters, and the far edge of the Outer Continental Shelf. New England’s ocean habitats provide a huge economic service, but only if the underlying ecological foundation is healthy and sustained. Pushing our ocean waters to produce more fish and seafood than is sustainable can lead to a severe decline in goods and services – as we are seeing with the most recent groundfish depletion crisis – or even to an unrecoverable collapse as has happened in eastern Canada.

There are really two major components to a healthy ocean: don’t take out too much in the way of fish and other living resources and don’t put in too much in the way of runoff, nutrients, carbon dioxide, and other pollutants. In New England’s celebrated cod and groundfish fishery we have clearly been taking out too much through decades of overfishing. The National Oceanic and Atmospheric Administration (NOAA), at the request of the New England Fishery Management Council, has for years taken the riskiest possible approach to managing fish stocks. NOAA and the Fishery Management Council have set catch limits at the highest levels allowed by law and then shown great surprise when fish stocks fail to recover.

We need NOAA to show proactive leadership by ensuring a more precautionary approach to setting annual catch limits and to rebuilding fish populations. Decades of unsustainable catch levels should not continue to plague New England’s fisheries or our ocean’s health.

The other problem of overfishing is that the methods used to catch fish have gotten more destructive. Since the development of more powerful engines and sonar during World War II, fishing vessels can go farther out to sea, fish in deeper water, and drag heavier bottom trawls. These inventions not only catch a lot more fish, but also cause more damage to ocean bottom habitat – the kelp beds, boulders and rocky fields, tube worms, anemones, sponges, corals, and mussel beds which serve as nurseries and spawning areas. Over decades we are left with cumulative impacts to large areas of New England’s ocean habitat.

This makes the remaining special areas such as Cashes Ledge even more important as a place where small fish can grow and become large enough to reproduce.

In New England, NOAA is headed in reverse on its legal responsibility and the ecological necessity to further protect juvenile groundfish in their nursery grounds. The commercial fishing industry, led by big trawlers, has argued for opening these nursery grounds. Areas of sea bottom that provide essential fish habitat must be protected from destructive fishing practices like trawling and dredging.  For nearly a decade regional fishery managers have failed to take serious action to protect essential fish habitat.  It’s time to make habitat conservation a priority.

The Conservation Law Foundation, our conservation partners, marine scientists, fishermen, and ocean users agree that permanent habitat protection is needed for Cashes Ledge and other special places.

Join our statement to NOAA asking for their leadership. Click here to urge NOAA to protect our ocean beauty, health, and wealth.

 

Cashes Ledge –Taking A Closer Look

Sep 20, 2012 by  | Bio |  2 Comment »

Brian Skerry and Luis Lamare get ready to photograph Cashes Ledge on their recent dive. Photograph by Christian Conroy.

What’s so special about Cashes Ledge? In this second of a planned series of dives on this New England biodiversity hotspot, Brian Skerry was joined by marine ecologist, Jon Witman, an expert on Cashes Ledge.  Jon has been studying Cashes Ledge for 35 years, and has been watching how the diversity and abundance of sea life has been changing there, and how it has responded to its current limited-protection status. We talked to him and found out more about why Cashes Ledge is so important to the Gulf of Maine, and what we can do to keep it thriving.

Robin:

Why have you spent so much time on Cashes Ledge?

Jon:

Cashes Ledge is a fascinating and wild offshore place that helps us understand how marine ecosystems tick. It is also a unique storehouse of Atlantic marine biodiversity. Cashes Ledge provides an opportunity to understand why biodiversity matters in an ecological sense. Unfortunately, we are losing marine biodiversity in the world’s oceans faster than we can study it.

Currently, I’m trying to figure out how the whole benthic ecosystem out on Cashes Ledge – from the fish, to the kelp forests and the diverse invertebrates communities have changed over the past decades. I’m particularly interested in how resilient the system is to human disturbance and to climate-related changes in the oceanography.

When we studied Cashes Ledge intensively in the 1980’s, it was like a time machine providing a fleeting glimpse of what New England marine coastal communities might have been like hundreds of years ago, when lots of large predatory fish – especially cod,  were commonplace close to shore. We videotaped over 100 cod an hour going by an area of bottom about the size of a large picnic table on Cashes Ledge, compared to no cod seen at the same depth at coastal sites in the Gulf of Maine.

I actually saw a whale cod as long as a diver and schools of Atlantic bluefin tuna while diving on Cashes Ledge then. There have been substantial reductions of predatory fish since then, which is something I’m studying, but Cashes Ledge is still a vitally rich ecosystem compared to coastal ones that have been more heavily impacted by humans.

 

Red cod and cunner, two of the many species that make Cashes Ledge their home

 

Robin:

What other kinds of interesting animals have you seen on Cashes Ledge?

Jon:

There are layers of marine life on Cashes Ledge, including minke, right, humpback and pilot whales, blue sharks, basking sharks, atlantic white sided dolphins, big schools of bluefin tuna chasing herring, whale cod, red cod, pollock, wolffish, torpedo rays, squid, strange feather stars called crinoids, and unusual sponges and sea squirts typical of sub arctic areas of Scandinavia.

Robin:

Can you talk about the internal waves and why they are important?

Jon:

The top of the ridge on Cashes Ledge is an incredibly dynamic place – layers of plankton in warmer overlying waters are driven right down to the bottom as much as 20 times a day by these phenomena known as internal waves. This is a big deal because the downwelling plankton layers are pulses of concentrated food that sustain bottom dwelling organisms and, in effect, fuel the food web.

We stumbled across this phenomenon in the course of our scuba dives to the top of the ridge at 30 m. One dive team would go down and report that the water on the bottom was cold and beautifully clear but the next team an hour later found pea soup visibility in greenish warm water. This, of course, turned out to be the plankton layer pushed down onto the bottom like a yo-yo by internal waves.

The temperature increase was so large that we could feel the warm water through our drysuits. At that time, the prevailing view of the subtidal zone was that it was a stable place with nearly constant environmental conditions, compared to the rocky intertidal zone. But out on Cashes we were documenting as much as 5 degree centigrade temperature increases in 10 minutes right on the rocky sea floor at 30 m depth.

Internal waves are like a sine wave travelling along the boundary between the warm surface waters and the colder layer below. They can be huge – spanning 50 m vertically in some parts of the world and 30 m high on Cashes.  I’ve seen these downwelling green water waves approaching the ridge on Cashes Ledge while scuba diving and sitting off the ridge in the Johnson Sea Link submersible – it’s one of the most spectacular things I’ve seen underwater.

 

A strong current moves through the Cashes Ledge kelp forest. Cunner swim in the background. 

 

Robin:

What makes Cashes Ledge so unique?

Jon:

There are at least three things make Cashes Ledge so unique. First of all, it is the largest continuous kelp forest in offshore waters on the entire east coast of the US. The kelp grow unusually deep there, beyond  30 m depth. The forest and the ledge itself provide many valuable goods and services to keep the offshore Gulf of Maine ecosystem healthy, vibrant, and productive. For example, it’s a nursery habitat for commercially valuable groundfish. It’s also an energy rich food source for marine life living in habitats both on the ledge and far away from it – in the form of detritus as the kelp breaks down.

Secondly, the Cashes Ledge ecosystem contains a wide range of different bottom types – it isn’t just all rocky ledge. Just like on a mountain slope in the Green or White Mountains in New England, there are cobble and boulder fields on the lower sides of rocky slopes on Cashes Ledge. Deeper down, the sea floor is covered in sand and gravel that grades into soft bottom areas of silt and mud in the basins. So what you have in the Cashes Ledge underwater landscape is a representative collection of most of the major types of bottom habitats found in the Gulf of Maine, but in an incredibly compact area, as ecosystems go.

Each of those different habitat types has its own community of species that do especially well in that particular habitat. For example, there are pink northern shrimp, clams, and tube worms living in the muddy basins at the edge of a boulder field, then communities of soccer ball-sized yellow sponges, bright red sea anemones, and little upright calcified candelabras called bryozoans that look like miniature coral reefs, attached to the boulder tops. Different habitats enhance biodiversity overall. If you sum up all the different species living in each of these different types of habitats from kelp forests to the muddy basins, you have some of the highest biodiversity levels in the Gulf of Maine right on Cashes Ledge.

Finally, as an abrupt topographic high in relatively clear, shallow, sunlit waters, Cashes Ledge is an especially productive offshore ecosystem in the Gulf of Maine. I mentioned the role of the kelp detritus exporting food to adjacent ecosystems, but the dynamic oceanography of the ledge itself also contributes to the productivity of the bottom community in the way that internal waves push concentrated layers of plankton to the top of the ridge.

I think both mechanisms help make Cashes Ledge such a productive area for many species – including groundfish and marine mammals. We’ve seen minke whales feeding in the slicks of internal waves on Cashes Ledge, presumably due to high concentrations of food there.

Robin:

What kind of protection does Cashes Ledge need and why?

Jon:

As special as it is, Cashes Ledge is a very vulnerable marine ecosystem. Right now Cashes Ledge has a small amount of protection from certain types of fishing activity as an Essential Fish Habitat and as a Habitat Area of Special Concern. This is laudable and a real achievement by fisheries managers in New England. However, this protection is only temporary and it could be eliminated at any moment.  It could be opened to fishing practices that further deplete stocks of groundfish, damage biodiverse communities, and decrease the sustainability of the kelp forests.

Because it is such a unique, valuable, and diverse New England marine ecosystem, the rocky ridge, adjacent bottom habitats, and the overlying water column on Cashes Ledge need permanent protection from human impacts. It has been shown many times that marine protected areas help exploited stocks recover and can ensure the sustainability of biodiversity and other goods and services that keep our oceans healthy. We also know that really small protected areas don’t do these jobs very well, so it pays in the long run to preserve larger areas containing different types of habitats.

Globally, we aren’t doing a very good job of protecting the oceans as less than 2% of the worlds oceans are fully protected, despite all the scientific findings showing that marine ecosystems are under ever increasing levels of stress from all sorts of human impacts.

Treasure on Cashes Ledge: An Ocean Refuge in Need of Protection

Aug 20, 2012 by  | Bio |  Leave a Comment

New England is as famous for its coastline as for its fish – but what lies beneath New England’s waves goes largely unseen and unremembered. One of these unknown treasures is Cashes Ledge, a 25-mile long underwater mountain range which lies 80 miles off the coasts of Massachusetts, Maine, and New Hampshire and shelters one of the most distinctive marine ecosystems in the Atlantic. But Cashes Ledge is as sensitive to human interference as it is important to ecological diversity. With limited protection against increasingly destructive fishing techniques, Cashes Ledge remains vulnerable.

Atlantic Riches

Cashes Ledge hosts a remarkable diversity of marine life, from the Atlantic wolffish and rare blue sponge to the unusual red cod. The reason for such diversity lies in the mountain range itself, whose pinnacles interrupt the primary Gulf of Maine current and create a stunning oceanographic phenomenon known as internal waves, which carry high levels of nutrients and oxygen from the sea surface to the sea floor. This unusual circulation pattern results in an incredibly productive and diverse ecosystem. Cashes Ledge boasts the deepest cold water kelp forest in the Gulf of Maine and possibly the North Atlantic and has a rich array of invertebrates including sea anemones; bright orange, red, yellow and blue sponges; horse mussels; sea stars; brittle and feather stars; sea squirts; worms and northern shrimp. Atlantic bluefin tuna can be found pursuing herring on Cashes Ledge and blue sharks are common during the warm summer months. Humpback and Northern right whales often stop off to feed on the abundant supply of plankton. Cashes Ledge is also rich in a variety of groundfish including Atlantic cod, white hake, monkfish, haddock and redfish. A variety of offshore sea birds can be found dining at Cashes, such as sooty shearwaters and Wilson’s storm-petrels.

Cashes Ledge is also a rarity in New England waters. Though the ledge’s jagged, rocky formation has protected this particular habitat from significant human interference, other areas in the Gulf of Maine have not been so lucky. Cashes Ledge is unique in the greater Gulf of Maine system because its mountains shield one of the few remaining examples of what an undisturbed and thriving ecosystem in this region could look like. It’s no wonder that scientists have used Cashes Ledge as an oceanographic research lab for decades.

Under Attack

Up until the late 1900s, the rocky seafloor surrounding the Cashes Ledge mountain range prevented fishermen from trawling the ocean floor for their catch. Today, modern fishing gear equipped with “rock-hoppers” is more effective and more destructive, and poses a serious threat to this ecological treasure beneath the waves. Certain species are especially at risk. Bottom trawling could easily wipe out certain populations of sea anemones, and scientists estimate that it would take over 200 years for the population to recover and return to the area. The kelp forests are also prone to shredding from simple fishing gear like lines, hooks, and traps, and bottom trawling could remove entire sections of the kelp forests – requiring years to recover. Any sustained damage to this delicately balanced ecosystem could last for decades or more.

Inadequate Protection

Though a portion of Cashes Ledge is currently protected by the New England Fishery Management Council (NEFMC), this protection is very limited. A part of Cashes Ledge has been designated as a habitat protection area and much of it is currently closed to fishing for cod, haddock and other groundfish. However, Cashes Ledge remains open to fishing with certain kinds of gear such as “mid-water” trawlers, large offshore lobster pots and seine nets that can seriously impact this sensitive ecosystem. Furthermore, the NEFMC is now considering modifications or elimination of these already limited protections – threatening the diversity of ocean wildlife and the unique habitat found on Cashes Ledge and the long-term health of this important and vulnerable ecosystem.

CLF Action

CLF has taken the lead in campaigning for the permanent protection of Cashes Ledge from damaging fishing gear. It is clear to us that the real value of this special place lies in preserving this treasure for ocean wildlife and as an open sea laboratory for the world’s scientists.

CLF is also committed to raising public awareness for Cashes Ledge and other ocean habitats through the recent launch of the New England Ocean Odyssey, featured earlier in this issue. This five-year program is just one of many ways CLF remains dedicated to conserving New England’s oceans.

Protecting Cashes Ledge is more than an environmental obligation – it is an opportunity. Preserving this area of natural beauty offers the chance to create another legacy for New England – one that recognizes its biodiversity and provides a thriving environment for generations to come.

Note: This article was originally pulished in Conservation Matters, CLF’s quarterly publication. Find a copy of this issues, as well as archives, here.

Waves of Change: Regional Ocean Planning Works for Ships and Whales

Jul 17, 2012 by  | Bio |  Leave a Comment

Right whale skim feeding off Provincetown, MA. Copyright Brian Skerry.

Right whale skim feeding off Provincetown, MA. Photo: Brian Skerry

Shipping lanes in and around San Francisco Bay are being changed to protect the many whales that feed in its krill-rich waters. Blue whales, fin whales, and humpbacks will all benefit from the changes. This action took two years of collaboration, data-sharing, and negotiating among the shipping industry, government agencies, and environmental groups. This, in a nutshell, is the regional ocean planning process.

Why does this matter to a New England conservation group? Well, besides the fact that everybody loves a happy ending, New England has been a leader in this type of effort for many years now.

If there is one dramatic example of the need to coordinate our activities in New England’s ocean it is the tale of our beloved but extremely endangered North Atlantic right whales and the shipping traffic that was threatening their recovery.

Right whales love our productive Gulf of Maine waters – they find an abundance of their favorite krill and copepods that teem in our coastal areas. People are keeping a close eye on these urban whales, since there may be fewer than 500 of them left on the planet. This careful watching was why we knew that shipping traffic in and out of Boston Harbor was causing big problems for the right whales. In short – right whales are shallow feeders, making them highly vulnerable to fatal ship strikes. And each whale matters in such a small population.

Stellwagen Bank National Marine Sanctuary staff decided to take action to protect the right whales in a bold and unprecedented way. Using 25 years’ worth of whale sighting and state of the art acoustic research Stellwagen Bank officials discovered that the shipping lanes through the Sanctuary also contained the highest concentration of whales, resulting in too often fatal collisions. In a process that took three years and involved collaboration with the Port of Boston, researchers with Woods Hole Oceanographic Institution, Cornell Bioacoustic Research Program, and a Texas-based energy company that relies on shipping in and out of the harbor – high quality data on the movements of whales in and around the Sanctuary was mapped and compared with shipping traffic in and out of Boston Harbor.

As a result, in 2007 the Sanctuary slightly altered the shipping lanesreducing whale strikes by 81 percent.

This wouldn’t have happened without scientists, conservationists, local officials, federal agencies and private industry deciding to work together.

To ensure continuing whale protection there are buoys “listening” for right whales throughout the bay, and there’s even an app for ship captains so they can receive whale location updates on their cell phones – alerting them to slow down or avoid certain areas. A lot of people came together to create an innovative solution to this complicated problem by using the principles of regional ocean planning. Everyone who had a stake in the process had a seat at the table.

This type of coordination is the heart of regional ocean planning. It’s simply about making sure everyone has a say in what in happens in our busy waters, including those of us who value protecting wildlife and natural habitats. As we have more happening in the Gulf of Maine, more ships, more whales, more renewable energy development, we need to be careful to organize these activities in a way that also protects existing commercial and recreational uses.

The pioneering Massachusetts and Rhode Island state ocean use plans are serving as the building blocks of New England’s regional ocean plan for federal waters. CLF is at the vanguard of ocean planning, innovating in New England what has become a national policy initiative intended to improve stewardship of vulnerable marine wildlife and habitats with responsible ocean uses.

What Single-Celled Diatoms Know That We Can’t Seem To Take Seriously

Jul 10, 2012 by  | Bio |  2 Comment »

A recent scientific article from four Maine ocean scientists reminded me of a not-very-good environmental joke. An archangel was reporting to God all the terrible things that humans had done to the earth’s environment. God listened patiently as the list expanded, interjecting regularly that the archangel was not to worry; these events had all been anticipated. But when the angel reported that there was now a hole in the ozone layer, God bolted upright in shock: “I told them not to mess with the ozone layer!”

The article I was reading was not about ozone holes. Obscurely titled Step-changes in the physical, chemical and biological characteristics of the Gulf of Maine, as documented by the GNATS times series, four researchers, led by Dr. William M. Balch from the prestigious Bigelow Laboratory for Ocean Sciences, reported on work they had done looking at a number of data bases of various physical, chemical, and biological markers in the Gulf of Maine. They focused on a series of ship-based sampling data collected between 1998 and 2010.

The researchers reported a startling fact: “[t]he standing stock of phytoplankton … generally decreased since 2005” and there had been a “dramatic” decrease in carbon fixation by phytoplankton across the Gulf of Maine in recent years.

The paper explained this dramatic decrease by pointing to increased precipitation in the Gulf of Maine watersheds in recent years. Four of the eight highest annual precipitation years in the last century in Maine occurred between 1998 and 2010. The data led them to conclude that this increased and atypical precipitation—a commonly predicted phenomenon associated with climate change –interfered with phytoplankton production by discharging increased amounts of colored dissolved organic matter from the watersheds into the Gulf that outcompeted marine plankton for available light.

This is no small matter. Phytoplankton is the base of virtually all marine life in the ocean. Moreover, marine phytoplankton around the world has been estimated to draw more carbon dioxide—a primary climate change gas—from the atmosphere and the oceans than all land plants combined. The punch line to the joke might just as well have been: “I told them not to mess with the phytoplankton!”

While it will take some time before a decline in phytoplankton production in the Gulf of Maine would manifest itself higher up in the marine food web by fewer numbers of high level fishes, the Bigelow researchers were correct to point out that historic high fish productivity in the Gulf of Maine marine system is directly linked to its high productivity of plankton. The health of the marine food web depends on the strength of its planktonic base.

This report’s startling analysis aligns in a troubling way with anecdotal information from fishermen and from fisheries science data that has been surfacing recently. Fish don’t seem to be as large at the different ages as they used to be and a number of predicted strong larval year classes of fish like Atlantic cod have “disappeared” before they became big enough to enter the fishery. Are Gulf of Maine fish failing to thrive like they once did as a consequence of declines in plankton production?

Climate change is happening and its impacts are already being registered in New England. The consequences of our profligate carbon consumption patterns will continue to challenge our ecosystem, our economy, and our way of life through both dramatic and random events that devastate coastal areas as well as chronic ecosystem changes that can be seen at the level of a single-celled phytoplankton. Sadly, it’s no joke.

Celebrating World Oceans Day

Jun 8, 2012 by  | Bio |  Leave a Comment

Breaching North Atlantic right whale. Copyright Brian Skerry.

On the occasion of World Oceans Day, it is worth reminding ourselves about how utterly dependent we are on the ocean – for the fish and shellfish that grace our dinner tables, for our summer recreation – on, in, and alongside our ocean – for the tremendous untapped renewable resources of the wind, waves and tides, and for transportation of people and goods. Oh yes, and the air – up to 70% of the oxygen we breathe is produced by the plankton in the ocean. That’s more than from all the world’s rain forests combined. The ocean absorbs about half of our carbon dioxide emissions and over 90% of the heat trapped by greenhouse gases. The ocean covers 70% of our planet and regulates the earth’s climate. Unfortunately the ocean is facing a host of troubles from climate change and acidification caused by all that carbon dioxide absorption, not to mention overfishing, seafloor habitat destruction and pollution – we need to be better stewards of this incredible resource.

As I walked on Crane Beach last weekend thinking about all of this, an early summer Northeaster whipped the ocean into a froth and unusually high tides threw up a wrack line of seaweed reaching as far as the wind sculpted sand dunes – leaving just a sliver of a beach. I was reminded that the ocean truly is the master and commander, and once again I felt humbled by the sea’s strength and beauty. I was also a little frustrated by it. Why? Brian Skerry, weather permitting, will go on his first ever dive to one of New England’s most special places – Cashes Ledge –  this Saturday and Sunday.

Cashes Ledge, located 80 miles northeast of Gloucester, Massachusetts, is a 25-mile long underwater mountain chain that hosts one of the most unique, dynamic and ecologically productive areas in the Gulf of Maine. The highest peak, Ammen Rock, rises steeply off the ocean floor from 460 feet below to within 40 feet of the ocean’s surface.  There is an unbelievable diversity of ocean wildlife in this special place: North Atlantic right whales, blue sharks, bluefin tuna, herring, cod, Atlantic wolffish, sea anemones, brittle stars, brilliantly colored sea sponges, and the deepest kelp forest in the Gulf of Maine. But most of us have never seen this underwater jewel and probably never will. Unless, that is, someone goes diving and brings back spectacular photographs.

Brian’s planned dive on Cashes is just one of the many that he will be doing as part of the New England Ocean Odyssey – our 5 year partnership to bring to light the magnificent beauty that lies beneath the surface of New England’s waves. Despite all that we know about the ocean and its role in our lives, it still holds tremendous mystery. And I am happy for some mystery in these days of ceaseless information flow coming over our personal transoms 24/7 through our computers and smart phones. There is still so much we don’t know about the ocean and so much we can’t see. So gazing out to sea on that cold windy day, I wondered about what lies beneath the surface of those wild waves. My curiosity will soon be bated – at least for one special place in the Gulf of Maine.

With any luck Brian will show us just what a magnificent place Cashes Ledge is. I say with any luck, because, well, the weather has been challenging as of late. I have been electronically tethered to the Cashes Ledge weather buoy – a remarkable device that sends hourly reports on the wind, waves, water and air temperature, atmospheric pressure – hoping it brings us good news!

At the height of this week’s Northeaster sustained wind speeds at the buoy reached 25 knots with gusts up to 35 knots. And the waves reached nearly 14 feet.  Not good for diving!  But the weather seems to be moderating and we are hopeful that Brian and his dive crew will make it out to Cashes this weekend. If not this weekend, he’ll get out on another. And I can’t wait to share his photographs with you!  So today, on World Oceans Day, make sure you take the opportunity to thank our oceans for the mystery they still hold and for all that they do for each of us.

This is also published on New England Ocean Odyssey, which can be found here.

Letter to Secretary Bryson: New England Can’t Afford To Put Gulf of Maine Cod at Risk

Feb 21, 2012 by  | Bio |  Leave a Comment

Photo courtesy of Derek Keats @ flickr. Creative Commons.

Gulf of Maine cod, the lifeline of our inshore fishing fleet up and down the coast of New England, is in a biological crisis. That is why I wrote today to the Honorable John Bryson, Secretary of the U.S. Department of Commerce, calling for federal fisheries disaster relief and interim emergency action. You can read a copy of the letter here, or scroll down to read it below this post.

My letter follows the latest scientific data – data that shows that cod stocks are much more heavily depleted than earlier assessments had indicated. According to the 2011 assessment, based on an improved scientific model, three additional years of survey data and more accurate weights-at-age estimates, Gulf of Maine the spawning cod estimates fell to 12,561 metric tons from 33,877 metric tons in 2008.

In the case of Gulf of Maine cod, the numbers are so close to the bone that a couple thousand metric tons of cod landed either way could spell the difference between a rebounding fishery and a total collapse. Given the economic importance of Gulf of Maine cod to coastal fishermen, what would the appropriate risk be?

Indications are that the National Marine Fisheries Service (NMFS) will set a quota of 6,700 metric tons (mt) for the 2012 fishing year that begins May 1. At this level the risk of the spawning population dropping below critical thresholds is greater than 31%. Drop the catch levels to 4,000mt and the risk drops to less than 10%. Still a risk but a safer bet. That is why as I said in my letter, “Conservation Law Foundation (CLF) recommends a one year 4,000mt catch level for the fishing year which starts May 1, 2012. While that level of catch is  2,700mt less than the lowest level proposed by the New England Fishery Management Council, it still presents a significant risk of further stock declines.”

Setting the catch levels too high on May 1, 2012 creates substantial risk that the whole fishery may have to be closed in the future. This isn’t sheer speculation; when Newfoundland’s northern cod fishery – a close cousin of our Gulf of Maine cod – collapsed in the early nineties, the fishery has had to be closed for decades to allow the cod stocks to rebuild.

As I said in my letter, at 4,000mt, “the estimated gross revenue losses at that catch level are $4,677,000. Importantly, an estimated sixty-six percent of those losses will fall on the smaller, inshore fleet (see attachment), a group that is already operating close to or below the economic break-even point and won’t have alternative fishing options in many cases.” Given this, I asked Secretary Bryson to “set up a disaster relief fund available to all active groundfish companies that would provide some relief for any demonstrated losses that they experience until GOM cod stocks can be rebuilt.”

The livelihoods of New England’s coastal fishermen hang in the balance with the Gulf of Maine cod. A three-part solution is required to protect these fishermen and the fish they depend upon.

  • First, NMFS should limit the risk of further long-term damage to the fishery by setting the quota at no higher than 4,000 metric tons for the 2012 fishing year. That will buy some time to do further analysis to inform catch limits for 2013 as the nature and extent of the crisis becomes better understood.
  • Second, NMFS should allocate those fish to the boats most economically dependent on Gulf of Maine cod, and restrict large trip boats from fishing for them.
  • Third, federal and state authorities should declare an economic fishery disaster and make funds available to assist the coastal fishermen who will suffer significant financial losses under any proposed scenario and look towards broader economic assistance for affected coastal communities.

Failing to take the right action for Gulf of Maine cod at this critical junction may well be failing the region’s fishing future. Fast and effective management steps have to be taken to head off that possibility.

 

A copy of the letter I sent to Secretary Bryson can be found below or as a .pdf here.

February 21, 2012
The Honorable John Bryson
Secretary
U.S. Department of Commerce
14th and Constitution Avenue NW
Washington, DC 20230

RE: Gulf of Maine Cod Federal Fisheries Disaster Relief & Interim Emergency Action

Dear Secretary Bryson:

We are writing to you now to support the earlier requests by Governor Deval Patrick for federal fisheries disaster relief pursuant to section 312(a) of the Magnuson-Stevens Fishery Conservation and Management Act (MSA). The new scientific assessments for Gulf of Maine cod (GOM cod) stocks document that the economic situation in the region is significantly more dire than previously thought. Immediate and aggressive action is needed to avoid any risk of creating a long-lasting biological crisis with GOM cod with widespread, crippling economic implications.

As a result of the recent science assessment, GOM cod catch levels will have to be drastically cut back on May 1, 2012. Even at low catch levels, there still will be a significant risk that the spawning stock levels could decline below the lowest level ever observed. In the words of one of the New England Council’s scientists who has extensively studied the complete commercial collapse of the northern cod stocks in the early 1990’s off Newfoundland, “the similarities [between the two situations] are a bit frightening.” Dr. J.-J. Maguire (email to SSC members and others 1/25/12). Following that collapse, Newfoundland’s cod stock has been largely closed to fishing for decades.

The recent GOM cod reassessment was a unique and highly unusual set of events that was beyond anyone’s control. The scientists exercised their best professional judgment in performing the original assessment in 2008, the managers strictly followed the scientific harvest level advice, and the fishermen appear to have stayed within their prescribed quota limits. And yet, the future of GOM cod is now at an unforeseen but significant risk. These circumstances meet all the criteria in the National Marine Fisheries Service’s disaster relief policy guidance: there is a fishery resource disaster as defined by the MSA; it was caused by events beyond human control; and there will be significant economic impacts stemming from this disaster.

Economic analysis indicates that single-year gross revenue losses for the commercial fleet from current revenue levels could range from  $1,354,000 to $14,620,000, depending on the catch level that is set. Conservation Law Foundation (CLF) recommends a one year 4,000mt catch level for the fishing year which starts May 1, 2012. While that level of catch is 2,700 metric tons less than the lowest level proposed by the New England Fishery Management Council, it still presents a significant 10% probability of further spawning stock declines.

The estimated gross revenue losses at that catch level are $4,677,000. Importantly, an estimated sixty-six percent of those losses will fall on the smaller, inshore fleet (see attachment), a group that is already operating close to or below the economic break-even point and won’t have alternative fishing options in many cases. We ask that you set up a disaster relief fund available to all active groundfish companies that would provide some relief for any demonstrated losses of net revenues that they experience until GOM cod stocks can be rebuilt.

Without relief from the crushing economic circumstances many coastal boat owners are facing, , managers are being tempted to take risks in setting the short-term quotas too high, potentially imperiling the fishery for decades. A further commercial collapse of GOM cod stocks would cripple many of New England’s fishing communities that are wholly dependent on cod. The indirect losses in the maritime support industries multiply those potential direct costs many times. Economic disaster assistance can greatly reduce the pressure on managers to allow short-term overharvesting as the region transitions to a sustainable fishery. Moreover, in addition to direct disaster relief, we encourage you to implement the suggestions of the Commerce Department Economic Development Administration’s recent evaluation of certain New England ports and provide necessary aid and technical assistance for the economic transition of these communities.

CLF supports the New England Council’s emergency action request and the general approach that the National Marine Fisheries Service (NMFS) has proposed in taking interim emergency action to respond to this unexpected and troubling new development. As mentioned above, however, we feel strongly that the quota should be set no higher than 4,000mt. And we have called for the imposition of a series of management measures that would direct the majority of the limited cod quota to the boats that are most dependent on cod. In support of this, we have provided NMFS with a position paper on this issue, which we are also attaching to this letter. Thank you for your careful consideration of the management and economic assistance measures we propose. We look forward to your response and your agency’s further efforts to work towards solutions that help all of New England’s coastal communities weather this tough economic crisis and to thrive in the future.

Sincerely,
Peter Shelley
Vice President

 

This Week in Talking Fish

Sep 22, 2011 by  | Bio |  Leave a Comment

Catch up with the latest news from TalkingFish.org, a blog brought to you by CLF and other organizations and individuals who want to see a sustainable fishing industry in New England and abundant fish populations for generations to come. TalkingFish.org aims to increase people’s understanding of the scientific, financial and social aspects at work in New England’s fisheries. Here’s what went on this week:

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