A review of marine mammal, sea turtle and seabird bycatch in USA fisheries and the role of policy in shaping management

This paper reviews the available information (observer programs, estimates, statutes, regulations) for bycatch of marine mammals, sea turtles, and seabirds in fisheries of the United States. Goals of the review were to evaluate the state of knowledge of bycatch and the role of existing protective legislation in shaping bycatch management for different taxa. Pressing issues are identified, as well as knowledge gaps and policy limitations that hinder multi-species bycatch reduction. The USA has made important progress toward reducing bycatch in its fisheries, but the efficacy of its management has been limited somewhat by a focus on taxon- and fishery-specific regulation and the lack of consistent mandate across taxa for taking a cumulative perspective on bycatch. Applying consistent criteria across taxa for setting bycatch limits (e.g., extending the approach used for marine mammals to sea turtles and seabirds) would be the first step in a multi-species approach to bycatch reduction. A population-based multi-species multi-gear approach to bycatch would help identify priority areas where resources are needed most and can be used most effectively.

[1]  T. Cole,et al.  Mortality and serious injury determinations for baleen whale stocks along the United States eastern seaboard and adjacent Canadian maritimes, 2003-2007 , 2007 .

[2]  Paul R. Wade,et al.  CALCULATING LIMITS TO THE ALLOWABLE HUMAN‐CAUSED MORTALITY OF CETACEANS AND PINNIPEDS , 1998 .

[3]  L. Crowder,et al.  Population Models for Atlantic Loggerheads: Past, Present, and Future , 2003 .

[4]  D. L. Alverson,et al.  By-Catch: Problems and Solutions , 2000 .

[5]  Erika A. Zollett,et al.  Reducing sea turtle by-catch in pelagic longline fisheries , 2006 .

[6]  Ben Lomond Wallflower.  5-Year Review: Summary and Evaluation , 2008 .

[7]  J. Carlson,et al.  Catch and Bycatch in the Shark Drift Gillnet Fishery off Georgia and East Florida , 1997 .

[8]  D. Palka,et al.  Bycatch estimates of coastal bottlenose dolphin (Tursiops Truncatus) in U.S. Mid-Atlantic gillnet fisheries for 1996 to 2000 , 2001 .

[9]  James V. Carretta,et al.  Preliminary estimates of marine mammal bycatch, mortality, and biological sampling of cetaceans in California gillnet fisheries for 2004 , 2005 .

[10]  D. Kobayashi,et al.  Principles and approaches to abate seabird by-catch in longline fisheries , 2005 .

[11]  A. Read.  Do circle hooks reduce the mortality of sea turtles in pelagic longlines? A review of recent experiments , 2007 .

[12]  James V. Caretta,et al.  Estimates of Marine Mammal, Sea Turtle, and SeabirdMortality in the California Drift Gillnet Fishery forSwordfish and Thresher Shark, 1996–2002 , 2004 .

[13]  J. Parrish,et al.  Seabird Bycatch: Trends, Roadblocks, and Solutions , 2001 .

[14]  Sara M. Maxwell,et al.  Shifting gears: assessing collateral impacts of fishing methods in US waters , 2003 .

[15]  The Black-footed Albatross Population Biology Workshop: A Step to Understanding the Impacts of Longline Fishing on Seabird Populations , 2001 .

[16]  A. Bolten,et al.  Loggerhead sea turtles , 2003 .

[17]  J. Andrew Royle,et al.  Effects of Turtle Excluder Devices (TEDs) on Loggerhead Sea Turtle Strandings with Implications for Conservation , 1995 .

[18]  L. Garrison.  Interactions between marine mammals and pelagic longline fishing gear in the U.S. Atlantic Ocean between 1992 and 2004 , 2007 .

[19]  Rebecca L. Lewison,et al.  Understanding impacts of fisheries bycatch on marine megafauna , 2004 .

[20]  James E. Salzman.  Scientists as Advocates: The Point Reyes Bird Observatory and Gill Netting in Central California , 1989 .

[21]  T. Jefferson,et al.  A global review of porpoise (Cetacea: Phocoenidae) mortality in gillnets , 1994 .

[22]  I. F. West,et al.  Seabird and Marine mammal bycatch reduction through fishing industry funded research : The New Zealand conservation Services levy program , 1999 .

[23]  Steven J. Kennelly,et al.  By-catch reduction in the world's fisheries , 2007 .

[24]  Dennis W. Lee,et al.  SEFSC pelagic observer program data summary for 1992-2000 , 2002 .

[25]  James V. Carretta,et al.  Marine mammal bycatch and estimated mortality in California commercial fisheries during 2005 , 2006 .

[26]  Julián,et al.  Estimates of marine mammal , turtle , and seabird mortality for two California gillnet fisheries : 1990-1995 , 2007 .

[27]  L. Bull.  Reducing seabird bycatch in longline, trawl and gillnet fisheries , 2007 .

[28]  L. Crowder,et al.  Impacts of fisheries bycatch on loggerhead turtles worldwide inferred from reproductive value analyses , 2008 .

[29]  K. Forney,et al.  Central California Gillnet Effort and Bycatch of Sensitive Species, 1990-1998 , 2001 .

[30]  S. Bache.  Bycatch mitigation tools: selecting fisheries, setting limits, and modifying gear , 2003 .

[31]  Scott D. Kraus,et al.  Fishing Techniques to Reduce the Bycatch of Threatened Marine Animals , 2006 .

[32]  Olivier Gimenez,et al.  Quantifying the impact of longline fisheries on adult survival in the black‐footed albatross , 2007 .

[33]  Simon Northridge,et al.  Bycatch of Marine Mammals in U.S. and Global Fisheries , 2006, Conservation biology : the journal of the Society for Conservation Biology.

[34]  Estimates of marine mammal bycatch in the Northeast (New England) multispecies sink gillnet fishery in 1996 , 2003 .

[35]  J. Parrish,et al.  Novel Tools to Reduce Seabird Bycatch in Coastal Gillnet Fisheries , 1999 .

[36]  Larry B. Crowder,et al.  Small-Scale Fisheries Bycatch Jeopardizes Endangered Pacific Loggerhead Turtles , 2007, PloS one.

[37]  P. Tester,et al.  Beach strandings as an indicator of at-sea mortality of sea turtles , 1996 .

[38]  J. Croxall,et al.  Trans‐equatorial migration and mixing in the wintering areas of a pelagic seabird , 2007 .

[39]  W. Murphy.  Endangered Species Act - Section 7 Consultation Biological Opinion , 2010 .

[40]  K. Murray.  Total bycatch estimate of loggerhead turtles (Caretta caretta) in the 2004 Atlantic sea scallop (Placopecten magellanicus) dredge fishery , 2005 .

[41]  P. Tester,et al.  Winter distribution of sea turtles in the vicinity of Cape Hatteras and their interactions with the summer flounder trawl fishery , 1995 .

[42]  P. Yorio,et al.  Seabird use of discards and incidental captures at the Argentine hake trawl fishery in the Golfo San Jorge, Argentina , 2006 .

[43]  Melissa S. Soldevilla,et al.  US Atlantic and Gulf of Mexico marine mammal stock assessments - 2016 , 2007 .

[44]  B. Worm,et al.  Saving endangered whales at no cost , 2007, Current Biology.

[45]  G. Waring,et al.  U.S. Atlantic and Gulf of Mexico marine mammal stock assessments--2002 , 1995 .

[46]  James V. Carretta,et al.  Marine mammal and sea turtle bycatch in the California/Oregon thresher shark and swordfish drift gillnet fishery in 2006. , 2006 .

[47]  D. A. Pabst,et al.  North Atlantic Right Whales in Crisis , 2005, Science.

[48]  D. Pierce,et al.  Population Characteristics of Common Murres and Rhinoceros Auklets Entangled in Gillnets in Puget Sound, Washington, from 1993 to 1994 , 1998 .

[49]  Jay Barlow,et al.  Incorporating Uncertainty into Management Models for Marine Mammals , 2000 .

[50]  Elliott A. Norse,et al.  Disturbance of the Seabed by Mobile Fishing Gear: A Comparison to Forest Clearcutting , 1998 .

[51]  S. Løkkeborg,et al.  The incidental catch of seabirds by longline fisheries: worldwide review and technical guidelines and mitigation , 1999 .

[52]  R. Reina,et al.  Pacific leatherback turtles face extinction , 2000, Nature.

[53]  S. Epperly,et al.  Turtle excluder devices -- Are the escape openings large enough? , 2002 .

[54]  Modeling a very rare event to estimate sea turtle bycatch lessons learned , 2004 .

[55]  J. Robins,et al.  Reducing Prawn-trawl Bycatch in Australia: An Overview and an Example from Queensland , 1999 .

[56]  L. Garrison,et al.  Estimated bycatch of marine mammals and turtles in the U.S. Atlantic pelagic longline fleet during 2001-2002 , 2010 .

[57]  J. Barlow,et al.  AN ASSESSMENT OF THE 1994 STATUS OF HARBOR PORPOISE IN CALIFORNIA , 1994 .

[58]  S. Løkkeborg.  Review and evaluation of three mitigation measures—bird-scaring line, underwater setting and line shooter—to reduce seabird bycatch in the north Atlantic longline fishery , 2003 .

[59]  E. Romanov.  Bycatch in the tuna purse-seine fisheries of the western Indian Ocean , 2002 .

[60]  J. Piatt,et al.  Abundance, distribution and population status of Marbled Murrelets in Alaska , 1995 .

[61]  L. Bugoni,et al.  Seabird mortality on factory trawlers in the Falkland Islands and beyond , 2006 .

[62]  Katsufumi Sato,et al.  Using annual body size fluctuations to explore potential causes for the decline in a nesting population of the loggerhead turtle Caretta caretta at Senri Beach, Japan , 2002 .

[63]  L. Crowder,et al.  ESTIMATING FISHERY BYCATCH AND EFFECTS ON A VULNERABLE SEABIRD POPULATION , 2003 .

[64]  K. Forney.  A decline in the abundance of harbor porpoise, Phocoena phocoena, in nearshore waters off California, 1986-93 , 2008 .

[65]  Philip M. Dixon,et al.  IMPROVING THE PRECISION OF ESTIMATES OF THE FREQUENCY OF RARE EVENTS , 2005 .

[66]  Matthew H. Godfrey,et al.  Status of nesting loggerhead turtles Caretta caretta at Bald Head Island (North Carolina, USA) after 24 years of intensive monitoring and conservation , 2005, Oryx.

[67]  Daniel G. Foster,et al.  Fishing methods to reduce sea turtle mortality associated with pelagic longlines , 2005 .

[68]  M. C. Rossman.  Allocating observer sea days to bottom trawl and gillnet fisheries in the northeast and Mid-Atlantic regions to monitor and estimate incidental bycatch of marine mammals , 2007 .

[69]  M. Snover.  Assessment of the population-level impacts of potential increases in marine turtle interactions resulting from a Hawaii Longline Association proposal to expand the Hawaii-based shallow-set fishery 1 , 2008 .

[70]  David W. Kerstetter,et al.  Pelagic Longline Fishing Gear: A Brief History and Review of Research Efforts to Improve Selectivity , 2006 .

[71]  T. Cole,et al.  Mortality and serious injury determinations for baleen whale stocks along the Eastern Seaboard of the United States, 2000-2004 , 2006 .

[72]  M. Pérez.  Compilation of Marine Mammal Incidental Take Data From the Domestic and Joint Venture Groundfish Fisheries in the U.S. EEZ of the North Pacific, 1989-2001 , 2003 .

[73]  J. Carlson,et al.  The Directed Shark Gillnet Fishery: Catch and Bycatch, 2003 , 2003 .

[74]  E. Babcock,et al.  HOW MUCH OBSERVER COVERAGE IS ENOUGH TO ADEQUATELY ESTIMATE BYCATCH ? , 2003 .

[75]  Estimated bycatch of loggerhead sea turtles (Caretta caretta) in U.S. Mid-Atlantic scallop trawl gear, 2004-2005, and in sea scallop dredge gear, 2005 , 2007 .

[76]  J. Robbins,et al.  FISHING GEAR INVOLVED IN ENTANGLEMENTS OF RIGHT AND HUMPBACK WHALES , 2005 .

[77]  R. Reeves,et al.  U.S. Pacific Marine Mammal Stock Assessments , 1995 .

[78]  E. Melvin,et al.  Alaska trawl fisheries : potential interactions with North Pacific albatrosses , 2007 .

[79]  L. Crowder,et al.  Comparing Effectiveness of Experimental and Implemented Bycatch Reduction Measures: the Ideal and the Real , 2007, Conservation biology : the journal of the Society for Conservation Biology.

[80]  L. Garrison,et al.  Analysis of sea turtle bycatch in the commercial shrimp fisheries of Southeast U.S. waters and the Gulf of Mexico , 2002 .

[81]  S. Diamond.  Bycatch quotas in the Gulf of Mexico shrimp trawl fishery: can they work? , 2004, Reviews in Fish Biology and Fisheries.

[82]  D. Palka,et al.  Estimates of cetacean and seal bycatch in the 2004 Northeast sink gillnet and Mid-Atlantic coastal gillnet fisheries , 2006 .

[83]  S. Petersen,et al.  Interactions between seabirds and deep‐water hake trawl gear: an assessment of impacts in South African waters , 2008 .

[84]  S. Fitzgerald,et al.  Electronic Monitoring of Seabird Interactions with Trawl Third-wire Cables on Trawl Vessels - A Pilot Study , 2004 .

[85]  J. Parrish,et al.  Population impacts of endangered short-tailed albatross bycatch in the Alaskan trawl fishery , 2008 .

[86]  M. Albert,et al.  Seabird and waterbird bycatch in fishing gear: next steps in dealing with a problem , 2005 .

[87]  C. Kappel.  Losing pieces of the puzzle: threats to marine, estuarine, and diadromous species , 2005 .

[88]  P. Dutton,et al.  Post-Nesting Migrations of Leatherback Turtles (Dermochelys coriacea) from Jamursba-Medi, Bird's Head Peninsula, Indonesia , 2007 .

[89]  Inter-American Tropical.  An ecological view of the tuna-dolphin problem: impacts and trade-offs , 1998 .

[90]  J. Barlow,et al.  FIELD EXPERIMENTS SHOW THAT ACOUSTIC PINGERS REDUCE MARINE MAMMAL BYCATCH IN THE CALIFORNIA DRIFT GILL NET FISHERY , 2003 .

[91]  George H. Balazs,et al.  Using Bayesian state-space modelling to assess the recovery and harvest potential of the Hawaiian green sea turtle stock , 2007 .

[92]  Rebecca L. Lewison,et al.  Quantifying the effects of fisheries on threatened species: the impact of pelagic longlines on loggerhead and leatherback sea turtles , 2004 .

[93]  S. Fitzgerald,et al.  Using Digital Video Monitoring Systems in Fisheries: Application for Monitoring Compliance of Seabird Avoidance Devices and Seabird Mortality in Pacific Halibut Longline Fisheries , 2005 .

[94]  Peter W. Dillingham,et al.  Estimating the ability of birds to sustain additional human-caused mortalities using a simple decision rule and allometric relationships , 2008 .

[95]  S. Epperly,et al.  Sea Turtles in North Carolina Waters , 1995 .

[96]  P. Richards,et al.  Trends in catch rates of sea turtles in North Carolina, USA , 2007 .

[97]  Ransom A. Myers,et al.  Collapse and Conservation of Shark Populations in the Northwest Atlantic , 2003, Science.

[98]  Pierre Kleiber,et al.  Comparison of logbook reports of incidental blue shark catch rates by Hawaii-based longline vessels to fishery observer data by application of a generalized additive model , 2002 .

[99]  L. Crowder,et al.  The Impact of Turtle Excluder Devices and Fisheries Closures on Loggerhead and Kemp's Ridley Strandings in the Western Gulf of Mexico , 2003 .

[100]  L. Rendell,et al.  Estimating the impact of interactions between bottlenose dolphins and artisanal fisheries around the Balearic Islands , 2008 .

[101]  S. Heppell,et al.  Application of diffusion approximation for risk assessments of sea turtle populations. , 2009, Ecological applications : a publication of the Ecological Society of America.

[102]  C. Yeung.  Estimates of marine mammal and marine turtle bycatch by the U.S. Atlantic pelagic longline fleet in 1992-1997 , 1999 .

[103]  G. Bianchi,et al.  Review of Measures Taken by Intergovernmental Organizations to Address Sea Turtle and Seabird Interactions in Marine Capture Fisheries , 2007 .