Posts Tagged research

Aug 15 2011

Scientist calls to end rule of NOAA

By Richard Gaines

Staff Writer

Influential marine scientist Brian Rothschild has charged NOAA with adopting an “unnecessarily hard-line,” wrong, wasteful and job-destroying interpretation of Congress’ intent for managing America’s fisheries.

Finding no accountability, “no master plan” or will to align policy more closely with what was intended and no hope for redress from the judiciary, Rothschild — who is based at the University of Massachusetts at Dartmouth and is one of New England’s most respected fishing advocates — proposed that Congress create an ad hoc commission to restructure fisheries management in the Northeast.

Rothschild issued his blunt judgments about the performance of the government and the courts in the aftermath of a June ruling by a federal judge in Boston that upheld the National Oceanic and Atmospheric Administration’s catch share policy management system, which data shows is bringing about a consolidation of the industry and forcing out small, independent boats and businesses.

Rothschild’s full commentary is reprinted in full on Page 8 of today’s Times; it was also published in the Wednesday Standard-Times of New Bedford, which is adjacent to Rothschild’s Dartmouth base.

A venerable waterman, scientist and linchpin between the Massachusetts fishing industry, academia and the political system, Rothschild’s words are read carefully across the country.

Rothschild, who turns 77 Sunday, was NOAA’s senior scientist during the 1970s, when the Magnuson-Stevens Act was rolled out. He was also the much-preferred choice of the industry and many members of Congress to head the National Marine Fisheries Service, but Jane Lubchenco, President Obama’s choice to lead NOAA in 2009, instead went for Maryland state wildlife official Eric Schwaab, never explaining her strange choice.

In his op-ed column, Rothschild absolved Judge Rya Zobel of much responsibility for affirming the government’s groundfishery policies, writing that she was “working within the bounds of standards established in administrative law.”

Rothschild wrote that the two cases handled by Zobel, brought by the cities of Gloucester and New Bedford and fishermen from every Atlantic coast state from Maine through North Carolina, showed that the judicial system does not always have the wherewithal to align the “executive’s implementation of laws with congressional intent.”

Certainly, Rothschild wrote, Congress did not intend NOAA to create a system that wastes 100,000 tons of fish a year worth $300 million at the dock, or $1.2 billion to the economy, while eliminating “hundreds if not thousands of jobs.” And it did not intend to disregard the economic and social impacts, unfairly reward some groups at the expense of others and “ignore valid scientific findings and suppress discussion regarding the magnitude of fish stocks.”

Congressman John Tierney and Barney Frank, both Democrats, and Sen. Scott Brown, a Republican, agreed with Rothschild’s view of NOAA, as did the consumer group, Food & Water Watch, which added that “Congress needs to step in and put an end to the agency’s abuse of any discretion that it has …”

NOAA did not respond to a request for comment.

“NOAA continues to send a clear message that it is unwilling to make the system fair for our fishermen,” Tierney said in a prepared statement to the Times. “I agree with Mr. Rothschild, that ‘protecting fishing jobs is a priority’ and that Congress must take every available action to ensure that our fishing communities are not driven out of business by NOAA’s inflexible interpretation of the Magnuson-Stevens Act.

“I am committed to working with my colleagues in Congress to protect our local fishing economy and push for a change in leadership at NOAA,” added Tierney, whose district includes Gloucester, all of Cape Ann and much of the North Shore.

In a telephone interview, Frank, who represents New Bedford and seeks Rothschild’s counsel on fisheries issues, said he believes Congress was moving closer to a bipartisan consensus to rein in NOAA by the limiting statutory changes to the Atlantic and Gulf regions, where grievances are greatest.

Read the rest here.

Jul 5 2011

Florida Fishermen Catch 25-Foot-Long Giant Squid, Offering Rare Opportunity to Study Elusive Creature

By Alisa Opar

Giant squid are creatures of the deep ocean. So it was quite a surprise when recreational fishermen spotted one floating on the surface some 12 miles off of Florida’s Jensen Beach on Sunday. They hauled the 25-foot-long dying invertebrate on to their 23-foot-long boat. “I thought we definitely need to bring it in, because no one’s going to believe us if we don’t,” said Robert Benz, who was fishing with friends Joey Asaro and Paul Peroulakis. “I didn’t want to leave it out there and just let the sharks eat it.”

University of Florida researcher Roger Portell injects preservative into a 25-foot-long giant squid Monday night. Photo: Jeff Gage, University of Florida/Florida Museum of Natural History

On Monday scientists at the University of Florida’s Florida Museum of Natural History preserved the squid, which died shortly after it was found. John Slapcinsky, the museum’s malacology collection manager, explained that giant squid reproduce just once in their lifetime, and then often become lethargic and die slowly. That’s probably what happened to this animal, as it was discovered barely alive near the surface. The finding offers a rare opportunity to learn more about the elusive creatures, which can grow to be 60 feet long, top 1,000 pounds, and have pigment cells on their white-and-red skin that allow them to rapidly change color, presumably for communication or camouflage.

Read the rest here.

Jun 2 2011

Oceana Twists Truth to Further Agenda

 

Oceana’s Geoff Shester recently penned an op-ed in The Santa Cruz Sentinel alleging that forage fish harvesting is out of control and must be reigned in.  The only problem with his opinion:  the “facts”.  They are, in fact, not accurate, but instead reflect an agenda.

Below, I’ve highlighted Mr. Shester’s false claims and followed them with a dose of reality:

 

• “Thirty years ago forage species accounted for 40 percent of California’s commercial fish landings by weight.  Today, with big fish gone, forage landings have soared to 85 percent”

In 1981, a moratorium was in effect prohibiting sardine fishing, and tunas dominated California landings, totaling more than 40 percent of the California catch.  The tuna canning industry based in San Diego, then the tuna capitol of the world, was driven out of California beginning in the mid-1980s, due in large measure to unfair competition from foreign water-packed imports and the excessive cost of doing business in the Golden State.  Those ‘big fish’ weren’t gone from the ocean, however, they were just not landed in California.

The sardine resource made a dramatic recovery beginning in the late 1970s, with the advent of a warm-water oceanic cycle.  Resource managers reopened the fishery in 1985, but this time around, they enacted strict harvest limits coupled with environmental triggers.  The resource was declared fully recovered in 1999 when the population exceeding one million metric tons.  But the harvest rate was capped at 10 percent after subtracting 150,000 mt off the top of the biomass estimate to account for forage needs.  The stock appears to have entered another natural decline and biomass estimates have dropped sharply.  Which brings up another allegation:

 

“…Overfish the forage and the rest of the marine species are in trouble…but that is exactly what is happening in California today.  Pacific sardines have declined 70 percent in the past decade, and market squid are being fished at record levels.  California fisheries, like salmon, rockfish and tuna, are depleted and in dire need of recovery.”

Regarding sardine, the conservative biomass estimate does not measure transboundary stocks in Canada and Mexico, but it does count landings from those countries, and those have declined; but coastwide harvest guidelines, including Washington and Oregon, as well as California, have also declined precipitously – from 152,000 mt in 2007 to 40,000 mt in 2011.

The market squid statement also is calculated to confuse.

California’s ocean has exhibited incredible productivity in the past two years, producing the highest grey whale count on record, resurgent rockfish stocks and a rebounding salmon fishery.  Market squid also thrived in these productive ocean conditions, but the fishery did not hit ‘record levels’.  In fact precautionary management has established a maximum harvest cap, intended to prevent overexploitation.  The fishery reached it and was closed before the end of the year.  A post-season survey of the squid spawning grounds revealed large aggregations of squid spawning nearly everywhere, well beyond end of the normal spawning cycle.

The squid life cycle runs from birth to death after spawning in nine short months or less, and abundance is driven primarily by environmental cycles. To maintain a sustainable fishery, The Department of Fish and Game instituted weekend fishing closures, allowing squid to spawn untouched for 30 percent of the week, and implemented marine reserves in more than 30 percent of traditional fishing grounds in central and southern California.  In addition, the fishery management plan approved in 2004 reduced the fleet by more than half.

California fisheries are by no means depleted, they are managed strictly by both the state and federal government (that’s why landings have appeared to decline – more fish are left in the ocean!).  Rockfish and salmon are managed under the ecosystem-based fishery management mandate of the federal Magnuson Act, with precautionary annual catch limits to prevent overfishing.

 

• “A recent federal study found that top ocean predators off California have declined by more than 50 percent since 2003.  Removing their source of food is like taking medicine away from the patient.  Traditional fisheries management concentrates on single species …”

The study, presumably the first draft of the “California Current Integrated Ecosystem Assessment”, does not yet include the area south of Point Conception – a critical omission acknowledged by the scientific team.  The draft IEA was submitted to the Pacific Fishery Management Council as an example.  Clearly, with data from a significant part the ocean missing, conclusions are not ready for ‘prime time’.

The IEA was developed to assist the Council in developing its Ecosystem-based Management Plan for the entire California Current – which will inform all the other fishery management plans, which now include ecosystem considerations themselves.  (The Coastal Pelagic Species plan has considered forage needs for more than a decade!)

Similar innuendos and misstatements run throughout the article, but I will touch on just one more:

 

“The question of fishing sustainably is a matter of political will.  That’s why a strong coalition of conservationists, fishermen and seafood businesses that want to see … healthy California oceans are supporting Assembly Bill 1299 that emphasizes the critical role that forage species play…”

A vast majority of California’s fishing communities, including municipalities, port districts, recreational and commercial fishing groups and individuals, seafood companies and knowledgeable fishery scientists, believe California already fishes sustainably;  indeed, California Current fisheries are acknowledged as having one of the lowest harvest rates in the world.

This super-majority is very much opposed to AB 1299, seeing that it embodies the same type of confusing, captious policy statements as contained in the ‘forage fishing must be controlled’ article.

To be clear, the majority of California fishing-related interests oppose the bill for the following reasons:

 

  • A multi-million dollar boondoggle:  AB 1299 is a solution in search of a problem.  This bill fails to acknowledge and integrate all the existing protections for forage species that now exist in both state and federal law. Whales, sea lions, and sea birds are thriving, providing clear evidence that state and federal forage species policies are working. Moreover, there are no ‘reduction’ fisheries in California, nor fishmeal plants, so the alleged threat from increasing forage fish production for aquaculture does not exist here: fisheries are strictly regulated.

  • Fails to recognize existing efforts: California has done a good job managing forage fish – far better than most other states and countries.  In addition to strict harvest rates and other management measures, the Marine Life Protection Act has implemented no-take reserves, including many near bird rookeries and haul out sites to protect forage for other marine life.  To start as if from scratch is both redundant and disrespectful of that management history.

  • Requires non-existent funding and staff time: Department of Fish & Game (DFG) is already enormously underfunded and understaffed for its existing tasks. The increased demand for Department research and management resources that this bill would create cannot be met without sacrificing resources for programs that are actually necessary.

  • Duplicates federal and state efforts: Oceana, the bill author, admitted at a public forum that California’s Marine Life Management Act already provides a science-based process to manage forage species. The federal Pacific Fishery Management Council is currently developing its California Current Ecosystem Management Plan, which will cover the entire West Coast, not just California state waters, with objectives similar to those in AB 1299. We encourage California to collaborate with the PFMC, which does not require legislation.

  • Places impossible standard on fisheries: The May 27 amendments to AB 1299 camouflage the millions needed to do specified research and make findings, yet still require new fishery management plans and amendments to fishery plans to be consistent with the new policy after January 1, 2012.  The new policy objective requires ecosystem-based management that “recognizes, prioritizes, accounts for, and incorporates the ecological services rendered by forage species”.  This implies setting explicit allocations for birds and mammals off the top of all fishery harvest plans  – and much of this information is not available.  Although final amendments in Appropriations Committee removed specific language, the threat of restriction is still inherent in this policy.

 

AB 1299 still requires millions in new money for DFG to prove that a fishery had no negative impacts before allowing it to operate. This is money that could be going to schools, health care, and other state programs with proven needs.

 

  • AB 1299 does not consider best available science, and could actually impede ecosystem-based management. AB 1299 will not protect forage species as virtually all range far beyond California state waters, but the policy proposed in this bill could severely restrict California fishermen unnecessarily and unfairly.

 

 

May 28 2011

Fishery Landings by West Coast County, 2006-2010

Maps were created (view pdf) that present rankings by west coast counties according to the major “management groups” (grouping individual species codes) used in the PacFIN database in terms of ex-vessel revenue for the recent 5-year period, 2006-2010.

These management groups accord with the four Pacific Council fishery management plans (coastal pelagic species, groundfish, highly migratory species, and salmon) and four additional categories (crab, other, salmon, shellfish, and shrimp).

The data were obtained by a query grouping landings by county codes in the database. The PacFIN county codes were then matched to FIPS county codes for use in ArcGIS. (The PacFIN county table includes several codes that are not counties, e.g., “Columbia River below Bonneville Dam.”

In data preparation revenue for all these codes were grouped into a single record, which is not displayed in the figures or the table below.)

Counties were used as the geographic units for two reasons. First, counties are a useful geographic unit for producing choropleth maps. Second, grouping by county makes it easier to compare landings data to demographic data (available from the census or other sources) in future analyses.

Read the post at the Pacific Fishery Management Council’s site.

May 17 2011

The Sardine’s Big Comeback

Why This Lowly Little Fish Should Be at the Top of Your Shopping List

Wild seafood is wrought with environmental, ethical, economic, and health implications. But the sardine poses a solution to each of these problems.

A seafood meal is the one opportunity most Americans will ever have to eat a wild animal. Given the illegality of selling wild game, only hunters and their lucky friends get to munch the many tasty beasts that roam the boondocks. Eating a wild thing is like walking around on your bare feet. It’s exposure to an ecosystem, and a direct connection with the planet. Eating wild fish is like a swim in the ocean, except in this case the ocean swims inside of you.

Unfortunately, wild seafood is wrought with environmental, ethical, economic, and health implications. Many fish stocks are dwindling. And prices, not surprisingly, are climbing. Certain fishing methods are damaging underwater ecosystems and creating bycatch, whereby the wrong fish are caught, and all too often killed. Big carnivorous fish like tuna and swordfish are known to accumulate dangerous levels of heavy metals from the many fish, great and small, in their diets.

Read the rest of the story here.

 

May 3 2011

Biodiversity Loss in the Ocean: How Bad Is It? [research paper]

Coral and fishphoto © 2009 gorfor | more info (via: Wylio)

Science 1 June 2007:
Vol. 316 no. 5829 pp. 1281-1284
DOI: 10.1126/science.316.5829.1281b

The Research Article Impacts of biodiversity loss on ocean ecosystem services By B. Worm et al. (3 Nov. 2006, p. 787) projects that 100 of seafood-producing species stocks will collapse by 2048.

The projection is inaccurate and overly pessimistic.

Worm et al. define collapse as occurring when the current year’s catch is <10 of the highest observed in a stock’s time series. However, fish catch is rarely an adequate proxy for fish abundance, particularly for rebuilding stocks under management. A variety of biological, economic, and social factors and management decisions determine catches; low catches may occur even when stocks are high (e.g., due to low fish prices or the effects of restrictive management practices), and vice versa.

The inadequacy of Worm et al.‘s abundance proxy is illustrated by the time series of data for Georges Bank haddock (Melanogrammus aeglefinus). The highest catch for haddock occurred in 1965 at 150,362 tons (1). This catch occurred during a period of intense domestic and international fishing (1).

In 2003, haddock catch was 12,576 tons, or 8 of the time series maximum. Under the Wormet al. definition, the stock would be categorized as collapsed in 2003. However, stock assessment data (1) estimate the total magnitude of the spawning biomass in 2003 to be 91 of that in 1965. Comparing the estimate of spawning stock biomass in 2003 to the level producing maximum sustainable yield (MSY), the stock was not even being overfished in 2003 (2).

Get the whole report here.

 

May 3 2011

One Fish, Two Fish, False-ish, True-ish

By FELICITY BARRINGER

Two University of Washington scientists have just published a study in the journal Conservation Biology in collaboration with colleagues from Rutgers University and Dalhousie University arguing that the gloomiest predictions about the world’s fisheries are significantly exaggerated.

The new study takes issue with a recent estimate that 70 percent of all stocks have been harvested to the point where their numbers have peaked and are now declining, and that 30 percent of all stocks have collapsed to less than one-tenth of their former numbers. Instead, it finds that at most 33 percent of all stocks are over-exploited and up to 13 percent of all stocks have collapsed.

It’s not that fisheries are in great shape, said Trevor Branch, the lead author of the new study; it’s just that they are not as badly off as has been widely believed. In 2006, a study in the journal Science predicted a general collapse in global fisheries by 2048 if nothing were done to stem the decline.

The work led by Dr. Branch is another salvo in a scientific dispute — feud might be a better word — that pits Dr. Branch and his co-author Ray Hilborn at the University of Washington’s School of Aquatic and Fisheries Sciences and their allies against scientists at the University of British Columbia and their partisans.

Read the rest of the story on the New York Times blog.

 

May 2 2011

Plenty more fish in the sea?

New method for measuring biomass reveals fish stocks are more stable than widely believed

Fish and marine species are among the most threatened wildlife on earth, due partly to over exploitation by fishing fleets. Yet there are differences in assessing trends in worldwide fishing stocks which, researchers writing in Conservation Biology argue, stem from inappropriate use of time trends in catches. 

Trevor Branch

“Estimates of fishery status based on catches suggest that around 30% of fisheries are collapsed and 70% are overexploited or collapsed,” said lead author Dr Trevor Branch from the University of Washington in Seattle. “Our assessment shows that these data are seriously biased, and that instead we should be looking at biomass data.Biomass data from scientific stock assessments indicated a much smaller proportion in these categories (12% collapsed, 26% overexploited or collapsed), and that status trends are stable. Our analysis suggests that in most regions fisheries management has led to stabilization, and even recovery, of fished populations.”

“Species which are targeted by fishing fleets are divided into stocks, a division of species into units based on political boundaries, genetic divergence, and biological characteristics,” said Branch. “The depletion of these stocks has important implications for ecosystem biodiversity; however methods of measuring depletion vary greatly.”

Dr Branch’s team considered stocks being “collapsed” or “overexploited” on the basis of catch and biomass data. Collapse is defined as biomass of less than 10% of unfished levels while over exploitation is defined by the governments of the United States and Australia as biomass below 50% of biomass that would produce maximum sustained catches.  These reference points are widely used in fisheries management, either as management targets or as limits not to be exceeded.

Previous methods for assessing status were on the basis of catch trends, however, methods based on biomass data find much lower percentages that are collapsed or over exploited, and relatively stable future trends. “Our study found the status of stocks worldwide based on catch trends to be almost identical to what would be expected if catches were randomly generated with no trend at all,” said Branch, “and that most classifications of collapse on the basis of catch data are not true collapses but are due to taxonomic reclassification, regulatory changes in fisheries, and market changes.”

Where biomass data are available, this can be used to ground truth the catch trends; this shows that catch data greatly overestimates the percentage of stocks collapsed and overexploited. Although the team’s biomass data was primarily from industrial fisheries in developed countries, the status of these stocks estimated from catch data is similar to the status of stocks in the rest of the world estimated from catch data.

“Instead of focusing on what we take out of the oceans (catches), we should be examining the actual state of the ecosystem (biomass data),” concludes Branch. “Catch data produce seriously biased estimates of what is going on in ocean ecosystems, and we need more effort expended on scientific surveys and stock assessments, especially in areas that are currently poorly assessed.”

This paper is published in Conservation Biology. Fore more information contact Lifesciencenews@wiley.comThis e-mail address is being protected from spam bots, you need JavaScript enabled to view it  +44 (0) 1243 770 375

Full Citation
:  Branch TA, Jensen OP, Ricard D, Ye Y, Hilborn R, “Contrasting global trends in marine fishery status obtained from catches and from stock assessments”, Conservation Biology, March 2011, DOI

Apr 29 2011

Impacts of Biodiversity Loss on Ocean Ecosystem Services [research article]

By Boris Worm, et al.

 

Dr. Boris Worm

Human-dominated marine ecosystems are experiencing accelerating loss of populations and species, with largely unknown consequences.

We analyzed local experiments, long-term regional time series, and global fisheries data to test how biodiversity loss affects marine ecosystem services across temporal and spatial scales. Overall, rates of resource collapse increased and recovery potential, stability, and water quality decreased exponentially with declining diversity.

Restoration of biodiversity, in contrast, increased productivity fourfold and decreased variability by 21%, on average.

We conclude that marine biodiversity loss is increasingly impairing the ocean’s capacity to provide food, maintain water quality, and recover from perturbations. Yet available data suggest that at this point, these trends are still reversible.

Click to read the entire article.

Mar 28 2011

The End of Overfishing in America

A fisherman unloads a portion of his catch for the day at Pigeon Cove Whole Foods docks in Gloucester, Massachusetts. Eric Schwaab, the administrator of the National Marine Fisheries Service, announced this week that overfishing will end in U.S. waters. (AP/Lisa Poole)

 

By Michael Conathan | March 25, 2011

This feature is part of a new series from CAP dealing with fisheries management issues. The series will publish biweekly on Fridays. It is a joint column with Science Progress.

Eric Schwaab, the administrator of the National Marine Fisheries Service, or NMFS, stood before a crowd of fisheries experts on Monday at the Boston Seafood Show. Schwaab had made many forays to New England—home of some of the squeakiest wheels in our nation’s fishing industry—since taking over the job about a year ago. But this time was different. He came bearing a remarkable message: We are witnessing the end of overfishing in U.S. waters.

One of the biggest changes to fisheries law in the 2007 reauthorization of the Magnuson-Stevens Fishery Conservation and Management Act was the imposition of strict annual catch limits, or ACLs, in fisheries experiencing overfishing beginning in 2010, and for all other fisheries in 2011, “at a level such that overfishing does not occur.” Schwaab said the 2010 target of putting ACLs in place for all overfished fisheries was achieved, and “We are on track to meet this year’s deadline of having [ACLs] in place, as required, for all 528 managed stocks and complexes comprising U.S. harvest.”

Schwaab went on to call this accomplishment an “enormous milestone.” Quite frankly, that is an even more enormous understatement.

The end of overfishing should be shouted from rooftops from New England to the Carolinas to the Gulf Coast to Alaska to the Pacific Island territories and back to NMFS’s Silver Spring, Maryland headquarters. This is the biggest national news story our fisheries have seen in years.

Read the rest of the story from America Progress.