Letters: Grossman Article on Reasons for Sardine Decline Inaccurate
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SEAFOODNEWS.COM [Letters] - June 23, 2015Editor’s Note: The following letter from D.B. Pleschner was reviewed and supported by Mike Okoniewski of Pacific Seafoods.To the Editor: I take exception to your statement: "The author of this piece, Elizabeth Grossman, buys into the argument, but in a fair article.”In no way was this “fair” reporting. She selectively quotes (essentially misquotes) both Mike Okoniewski and me (and this after I spent more than an hour with her on the phone, and shared with her the statements of Ray Hilborn, assessment author Kevin Hill and other noted scientists.) She does not balance the article but rather fails to emphasize the NOAA best science in favor of the Demer-Zwolinski paper, published in NAS by NOAA scientists who did not follow protocol for internal review before submitting to NAS (which would have caught many misstatements before they saw print).NOAA’s Alec MacCall later printed a clarification (in essence a rebuttal) in NAS, which pointed out the errors and stated that the conclusions in the Demer paper were “one man’s opinion”.Oceana especially has widely touted that paper, notwithstanding the fact that the SWFSC Center Director also needed to testify before the PFMC twice, stating that the paper’s findings did not represent NOAA’s scientific thinking.After the Oceana brouhaha following the sardine fishery closure, NOAA Assistant Administrator Eileen Sobeck issued a statement. SWFSC Director Cisco Werner wrote to us in response to our request to submit Eileen’s statement to the Yale and Food & Environment Reporting Network to set the record straight:“The statement from the NMFS Assistant Administrator (Eileen Sobeck) was clear about what the agency's best science has put forward regarding the decline in the Pacific Sardine population. Namely, without continued successful recruitment, the population of any spp. will decline - irrespective of imposed management strategies.”It is also important to note that we are working closely with the SWFSC and have worked collaboratively whenever possible.I would greatly appreciate it if you would again post Sobeck’s statement to counter the inaccurate implications and misstatements in Elizabeth Grossman’s piece.Diane Pleschner-SteeleCalifornia Wet Fish Producers AssociationPS: I also informed Elizabeth Grossman when we talked that our coastal waters are now teeming with both sardines and anchovy, which the scientific surveys have been unable to document because the research ships survey offshore and the fish are inshore.Sobeck’s statement follows:Researchers, Managers, and Industry Saw This Coming: Boom-Bust Cycle Is Not a New Scenario for Pacific SardinesA Message from Eileen Sobeck, Head of NOAA FisheriesApri 23, 2015Pacific sardines have a long and storied history in the United States. These pint-size powerhouses of the ocean have been -- on and off -- one of our most abundant fisheries. They support the larger ecosystem as a food source for other marine creatures, and they support a valuable commercial fishery.When conditions are good, this small, highly productive species multiplies quickly. It can also decline sharply at other times, even in the absence of fishing. So it is known for wide swings in its population.Recently, NOAA Fisheries and the Pacific Fishery Management Council received scientific information as a part of the ongoing study and annual assessment of this species. This information showed the sardine population had continued to decline.It was not a surprise. Scientists, the Council, NOAA, and the industry were all aware of the downward trend over the past several years and have been following it carefully. Last week, the Council urged us to close the directed fishery on sardines for the 2015 fishing season. NOAA Fisheries is also closing the fishery now for the remainder of the current fishing season to ensure the quota is not exceeded.While these closures affect the fishing community, they also provide an example of our effective, dynamic fishery management process in action. Sardine fisheries management is designed around the natural variability of the species and its role in the ecosystem as forage for other species. It is driven by science and data, and catch levels are set far below levels needed to prevent overfishing.In addition, a precautionary measure is built into sardine management to stop directed fishing when the population falls below 150,000 metric tons. The 2015 stock assessment resulted in a population estimate of 97,000 metric tons, below the fishing cutoff, thereby triggering the Council action.The sardine population is presently not overfished and overfishing is not occurring. However, the continued lack of recruitment of young fish into the stock in the past few years would have decreased the population, even without fishing pressure. So, these closures were a “controlled landing”. We saw where this stock was heading several years ago and everyone was monitoring the situation closely.This decline is a part of the natural cycle in the marine environment. And if there is a new piece to this puzzle -- such as climate change -- we will continue to work closely with our partners in the scientific and management communities, the industry, and fishermen to address it. Read/Download Elizabeth Grossman's article: Some Scientists and NGO’s Argue West Coast Sardine Closure was too Late
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Pacific Council Declares Petrale Sole and Canary Rockfish Now Rebuilt to Sustainable Level
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Copyright © 2015 Seafoodnews.com
SEAFOODNEWS.COM By Peggy Parker - June 22, 2015The Pacific Fishery Management Council announced last week that two formerly overfished West Coast groundfish stocks—canary rockfish and petrale sole—have now been rebuilt ahead of schedule.The stocks have been the subject of strict rebuilding plans that severely constrained West Coast fisheries for more than a decade. Managing groundfish fisheries in the last 15 years, under the canary rockfish rebuilding plan in particular, has been an immense challenge for the Council and the National Marine Fisheries Service and has caused significant disruption of fisheries.“This is a huge achievement and reflects many hard decisions made by the Council and its advisors, as well as difficult sacrifices by the fishermen and communities that depend on groundfish,” said Council Chair Dorothy Lowman. “While five groundfish stocks are still rebuilding, the Council looks forward to new fishing opportunities based on the fact that these two stocks have completely recovered.”Canary rockfish, prized by both recreational and commercial fishermen, were declared overfished in 2000 and a rebuilding plan was put in place in 2001, affecting groundfish fisheries off Washington, Oregon, and California Because canary rockfish coexist with so many healthy groundfish stocks, they have been known as a “bottleneck species” limiting many fisheries.Canary rockfish are a long-lived, slow-growing species, making them difficult to rebuild. Under the plan, catch quotas were dramatically reduced and large area closures put in place, and the stock was expected to rebuild by 2057. However, the new 2015 canary rockfish assessment adopted by the Council last week shows the coastwide canary stock has already been rebuilt. The managers credit strict protections and good ocean conditions.“This a big deal," said former council chair Dan Wolford. "We now have six times more canary rockfish than when we scaled back so many fisheries. This shows the Pacific Council’s conservation policies work.”Petrale sole, an important species for commercial fisheries, were declared overfished in 2010 after an assessment showed that the stock had fallen below the overfished threshold. Beginning in 2011, a rebuilding plan was put in place to rebuild the stock by 2016. The petrale sole harvest limit was cut by half, and fisheries in which petrale sole could be caught incidentally were also reduced and area closures were implemented. A stock assessment conducted this year shows that the rebuilding plan was successful and the stock has increased over the target level.“Petrale sole is known as our Cadillac flatfish,” said Ralph Brown, a long-time commercial fisherman from Bookings, Oregon. “Restaurants will love that these fish are now back so strongly.”The petrale sole and canary rockfish assessments were developed by scientists at NMFS and the University of Washington (in the case of petrale) and were reviewed by the Council’s scientific advisory bodies. The recommendation to declare these stocks rebuilt will be forwarded to the National Marine Fisheries Service for approval.New harvest specifications and regulations informed by these assessments are expected to be put in place beginning in 2017.
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West Coast Fish Species Recovers Decades Ahead Of Schedule
Fishery managers say canary rockfish have recovered from being overfished decades ahead of schedule.
Fishery managers say two valuable West Coast groundfish have recovered ahead of schedule: canary rockfish and petrale sole.That's good news for the fishing industry. The fleet has been restricted from catching healthy stocks of fish that swim alongside these protected species at the bottom of the ocean.For more than a decade, canary rockfish have been what's considered a "choke" species. That is, protecting them choked off fishing access to other valuable species like Dover sole and black cod.There were so few canaries left, no one was allowed to catch very many, according to John DeVore, a groundfish manager with the Pacific Fishery Management Council. Assessments in 2000 found the canary rockfish population was down to 6.6 percent of the "unfished biomass" or what it was estimated to be before people started fishing it. It was hard to catch other fish at the bottom of the ocean without the risk of also catching a canary."It really affected our fisheries as dramatically as any species ever has," he said. "These fish tend to be found in lots of different places. A lot of our conservation management measures were affected by canary rockfish."Efforts to rebuild canary rockfish led managers to close entire sections of the ocean to fishing. They also contributed to a total redesign of the commercial trawl fishery. The new fishery gives fishing boats ownership shares of the available catch. It's designed to give fishers a financial incentive to avoid protected species like canary rockfish. The latest assessment shows canary rockfish have increased by roughly sixfold since 2000.Managers didn't expect the canaries to rebound until 2057. So, they're way ahead of schedule. Another valuable ground fish, petrale sole, was declared overfished five years ago. And stock assessments show it's already rebuilt as well.Other species, including yelloweye rockfish, are still considered overfished. But fishermen say they're looking forward to having fewer restrictions and higher catch limits now that two key species have been restored.Brad Pettinger, director of the Oregon Trawl Commission, said at one point the canary rockfish catch limit for the entire West Coast was just 40 tons while the limits for other species were 10,000-20,000 tons. If the fleet caught too many canaries while targeting other fish, the entire fishery would be shut down."We used to catch 400,000 tons of canary rockfish back in the heyday," he said. "It's not like we want to go out and catch that many as soon as it's rebuilt, but this should open up a lot of opportunity to catch other fish. It is good news, and we're darn thankful."The process of protecting and rebuilding overfished stocks has taken a big toll on the number of groundfish boats in operation on the West Coast. Before 1994, Pettinger said, there were 500 trawl vessels catching groundfish. Now, he said, the fleet is down to about 70 boats coastwide.
Read the original post: http://kuow.org
West Coast sardine fishery being shut down
Sardine commercial fishery shutdown: Story and video — www.kionrightnow.com
Includes interviews with CWPA Board members Anthony Russo and David Crabbe.
Researchers, Managers, and Industry Saw This Coming: Boom-Bust Cycle Is Not a New Scenario for Pacific Sardines
A Message from Eileen Sobeck, Head of NOAA FisheriesPacific sardines have a long and storied history in the United States. These pint-size powerhouses of the ocean have been -- on and off -- one of our most abundant fisheries. They support the larger ecosystem as a food source for other marine creatures, and they support a valuable commercial fishery. When conditions are good, this small, highly productive species multiplies quickly. It can also decline sharply at other times, even in the absence of fishing. So it is known for wide swings in its population.Recently, NOAA Fisheries and the Pacific Fishery Management Council received scientific information as a part of the ongoing study and annual assessment of this species. This information showed the sardine population had continued to decline. It was not a surprise. Scientists, the Council, NOAA, and the industry were all aware of the downward trend over the past several years and have been following it carefully. Last week, the Council urged us to close the directed fishery on sardines for the 2015 fishing season. NOAA Fisheries is also closing the fishery now for the remainder of the current fishing season to ensure the quota is not exceeded.While these closures affect the fishing community, they also provide an example of our effective, dynamic fishery management process in action. Sardine fisheries management is designed around the natural variability of the species and its role in the ecosystem as forage for other species. It is driven by science and data, and catch levels are set far below levels needed to prevent overfishing. In addition, a precautionary measure is built into sardine management to stop directed fishing when the population falls below 150,000 metric tons. The 2015 stock assessment resulted in a population estimate of 97,000 metric tons, below the fishing cutoff, thereby triggering the Council action.The sardine population is presently not overfished and overfishing is not occurring. However, the continued lack of recruitment of young fish into the stock in the past few years would have decreased the population, even without fishing pressure. So, these closures were a “controlled landing”. We saw where this stock was heading several years ago and everyone was monitoring the situation closely.This decline is a part of the natural cycle in the marine environment. And if there is a new piece to this puzzle -- such as climate change -- we will continue to work closely with our partners in the scientific and management communities, the industry, and fishermen to address it.To learn more about this amazing fish, go to these websites:FishWatchNOAA Southwest Fishery Science CenterNOAA Fisheries West Coast RegionPacific Fishery Management Council
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Ray Hilborn: Analysis Shows California Sardine Decline Not Caused by Too High Harvest Rate
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SEAFOODNEWS.COM [SeafoodNews] (Commentary) by Ray Hilborn April 22, 2015
Two items in the last weeks fisheries news have again caused a lot of media and NGO interest forage fish. First was publication in the Proceedings of the National Academy of Sciences of a paper entitled “Fishing amplifies forage fish population collapses” and the second was the closure of the fishery for California sardine. Oceana in particular argued that overfishing is part of the cause of the sardine decline and the take home message from the PNAS paper seems to support this because it showed that in the years preceding a “collapse” fishing pressure was unusually high.
However what the PNAS paper failed to highlight was the real cause of forage fish declines. Forage fish abundance is driven primarily by the birth and survival of juvenile fish producing what is called “recruitment”. Forage fish declines are almost always caused by declines in recruitment, declines that often happen when stocks are large and fishing pressure low. The typical scenario for a stock collapse is (1) recruitment declines at a time of high abundance, (2) abundance then begins to decline as fewer young fish enters the population, (3) the catch declines more slowly than abundance so the harvest rate increases, and then (4) the population reaches a critical level that was called “collapsed” in the PNAS paper.
Looking back at the years preceding collapse it appears that the collapse was caused by high fishing pressure, when in reality it was caused by a natural decline in recruitment that occurred several years earlier and was not caused by fishing.
The decline of California sardines did not follow this pattern, because the harvest control rule has reduced harvest as the stock declined, and as fisheries management practices have improved this is now standard practice. The average harvest rate for California sardines has only been 10% per year for the last 10 years, compared to a natural mortality rate of over 30% per year. Even if there had been no fishing the decline in California sardine would have been almost exactly the same.
In many historical forage fish declines fishing pressure was much higher, often well over 50% of the population was taken each year and as the PNAS paper highlighted, this kind of fishing pressure does amplify the decline. However many fisheries agencies have learned from this experience and not only keep fishing pressure much lower than in the past, but reduce it more rapidly when recruitment declines.
So the lesson from the most recent decline of California sardine is we have to adapt to the natural fluctuations that nature provides. Yes, sea lions and birds will suffer when their food declines, but this has been happening for thousands of years long before industrial fishing. With good fisheries management as is now practiced in the U.S. and elsewhere forage fish declines will not be caused by fishing.
Ray Hilborn is a Professor in the School of Aquatic and Fishery Sciences, University of Washington specializing in natural resource management and conservation. He is one of the most respected experts on marine fishery population dynamics in the world.
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Sardine Assessment Shows Cyclic Decline in Population
Pacific sardines are known for wide swings in their population: the small, highly productive species multiplies quickly in good conditions and can decline sharply at other times, even in the absence of fishing. Scientists have worked for decades to understand those swings, including a decline in the last few years that led to the Pacific Fishery Management Council's 
recommendation on April 13th to suspend commercial sardine fishing off the West Coast for the first time in decades..An updated stock assessment by NOAA Fisheries’ Southwest Fisheries Science Center (SWFSC) was the basis for the Council's action. Stock assessments are research tools that estimate the status and size of the sardine population. The Council uses the assessments to set fishing quotas.Models that support the sardine assessment combine NOAA data on past and current abundance of sardine eggs, larvae and mature fish with other data on sardine biology and fishery catches. The data on sardine abundance come from two SWFSC research vessel surveys conducted off the West Coast each year.These surveys employ two methods to estimate the current size of the sardine population. They use underwater acoustic equipment (like sonar) to estimate the size of fish schools, followed by the use of trawl nets to verify the species comprising the schools. Additionally, the surveys employ devices that measure the density of sardine eggs in the water as a gauge of sardine spawning. Scientists can then calculate how large the spawning population must be to produce the measured density of sardine eggs.These data feed a computer model to estimate sardine population trends and provide the foundation for projections of the total population of sardines off the West Coast in the next fishing year.“The assessment produced this year suggests that cool ocean water temperatures off the West Coast beginning around 2007 may have reduced the survival of juvenile sardine resulting in a population decline”, said Kevin Hill, a fisheries biologist who oversees the stock assessment for the SWFSC. The number of surviving young fish appears to have dropped to the lowest levels in recent history and has likely remained low in 2014. This has led to a steady decline in the fishable sardine stock biomass, which is defined as the total volume of sardines at least one year old. This is the measure the Council relies on when setting fishing quotas.“The environment is a very strong driver of stock productivity. If ocean conditions are not favorable, there may be successful spawning, but fewer young fish survive to actually join the population,” Hill said. “Small pelagic fish like sardine and anchovy undergo large natural fluctuations even in the absence of fishing. You can have the best harvest controls in the world but you’re not going to prevent the population from declining when ocean conditions change in an unfavorable way.”The current decline adds to a series of ups and downs that illustrate the boom-and-bust nature of sardine populations. The sardine biomass rose from about 300,000 metric tons in 2004 to a high point of more than 1 million in 2008 and is predicted to decrease to an estimated 97,000 metric tons by this coming July.Because of these swings in sardine populations, the Council’s management framework for sardines includes built-in mitigation measures and safeguards to exponentially reduce fishing pressure as the stock declines. One of these Council measures is a cessation in directed fishing on sardines when the biomass falls below 150,000 metric tons. “The fishing cutoff point is included in the guidelines adopted by the Council and is designed to maintain a stable core population of sardines that can jump-start a new cycle of population growth when oceanic conditions turn around,” Hill said.In the course of reviewing the 2015 updated assessment, it became evident that the final model used in the 2014 assessment did not correspond to the best fit to the data. The data were reanalyzed and a better fit to the 2014 model was achieved. This re-examination resulted in a lower 2014 biomass estimate of 275,705 metric tons, down from the previous estimate of 369,506 metric tons, which is still above the fishing cutoff value of 150,000 metric tons.The revised model applied to the 2015 assessment resulted in a biomass estimate of 97,000 metric tons, which is below the fishing cutoff. As a result, the Council decided to close the 2015-2016 sardine fishing season and requested that NOAA Fisheries close the remainder of the 2014-2015 sardine fishing season. The sardine population is presently not overfished and overfishing is not occurring; however, the continued lack of recruitment observed in the past few years could decrease the population, even without fishing pressure.The NOAA Ship Bell M. Shimada is currently conducting a new sardine survey off the West Coast to collect updated information on the size and location of the sardine stock. In addition, a large-scale 80-day survey this summer will collect data on sardine and whiting (hake) populations from the Mexican border to Canada. This new information will support the next stock assessment SWFSC prepares for the Council and NOAA fisheries managers.Learn more:Pacific sardine stock assessmentExecutive summary Full report In the Field: Spring Sardine Survey 2015Pacific Fishery Management Council Coastal Pelagic Species California Cooperative Oceanic Fisheries Investigations (CalCOFI)Video – Coastwide Sardine SurveyGreen Seas Blue Seas – Interactive Guide to the California Current For more information, please contact: Michael.Milstein@noaa.gov or Jim.Milbury@Noaa.gov (West Coast Regional Office Public Affairs), Dale.Sweetnam@noaa.gov (Southwest Fisheries Science Center) and Joshua.Lindsay@noaa.gov (West Coast Regional Office)
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Editor's View: Pacific Sardine Closure Shows Management Works, but Oceana and Pew Won't Accept That
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Yesterday the Pacific Fisheries Management Council closed the directed West Coast sardine fishery for the first time in 30 years. The move was widely expected, as fishery managers adopted a precautionary plan to shut the fishery during cyclical periods of low abundance.
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