Conduct a scientific review to ensure that currently employed methods for estimating sea turtle post-release mortality in pelagic longline fisheries are made using best available science.
Based on critiques of current methods used to estimate sea turtle post-release mortality rates in pelagic longline fisheries, provide suggestions to establish more reliable estimates.
Specifically, the group will:
1) Review the post-release mortality estimates for sea turtles as currently defined in Table 1 (p.26) of Ryder et al. (2006);
2) Identify relevant research conducted since the 2004 meeting described in Ryder et al. (2006);
3) Review and critique research conducted since 2004 that is relevant for estimating post-release mortality probability;
4) Discuss potential effects of hook design (J, tuna, circle) and size (narrowest width) on injury and mortality.
WHEN: 15 and 16 November 2011, 11:30 am -4:00 pm EST
WHERE: Online - webinar - directions provided via email.
Since the time of the workshop in 2004, there have been a number of published papers as well as anecdotal information related to sea turtle post-release mortality, suggesting a benefit of reassessing estimates in light of new information. In addition to anatomical hooking location and trailing gear, this meeting could also provide an opportunity to consider effects of hook types, such as circle, J, and Tuna hooks.
Keith Bigelow, National Marine Fisheries Service, firstname.lastname@example.org
Milani Chaloupka, Ecological Modeling Services, email@example.com
Sheryan Epperly, National Marine Fisheries Service, Sheryan.Epperly@noaa.gov
Joseph Flanagan, Houston Zoo, JFlanagan@houstonzoo.org
Eric Gilman (co-organizer), Hawaii Pacific University, EricLGilman@gmail.com
Dawn Golden, National Marine Fisheries Service, Dawn.Golden@noaa.gov
Martin Hall, Inter-American Tropical Tuna Commission, firstname.lastname@example.org
Craig Harms, North Carolina State University, email@example.com
Mike James, Fisheries and Oceans Canada, Mike.James@dfo-mpo.gc.ca
Molly Lutcavage, Univ. Massachusetts, firstname.lastname@example.org
Terry Norton, Georgia Sea Turtle Center, email@example.com
Patrick Opay, National Marine Fisheries Service, Patrick.Opay@noaa.gov
Mariluz Parga, SUBMOM, firstname.lastname@example.org
Samuel Pooley, National Marine Fisheries Service, email@example.com
Chris Sasso, National Marine Fisheries Service, Chris.Sasso@noaa.gov
Barbara Schroeder, NMFS, Barbara.Schroeder@noaa.gov
Brian Stacy, University of Florida, StacyB@vetmed.ufl.edu
Lesley Stokes, National Marine Fisheries Service, Lesley.firstname.lastname@example.org
Yonat Swimmer (lead organizer), National Marine Fisheries Service, email@example.com
Jeanette Wyneken, Florida Atlantic University, firstname.lastname@example.org
Adam Bailey, National Marine Fisheries Service, Adam.Bailey@noaa.gov
Christina Fahy, National Marine Fisheries Service, Christina.email@example.com
Karen Frutchey, National Marine Fisheries Service, Karen.firstname.lastname@example.org
Asuka Ishizaki, Western Pacific Fishery Management Council, email@example.com
Irene Kinan-Kelly, National Marine Fisheries Service, Irene.Kelly@noaa.gov
Chris Yates National Marine Fisheries Service, firstname.lastname@example.org
Aguilar R, Mas J, Pastor X. 1995. Impact of Spanish swordfish longline fisheries on the loggerhead sea turtle Caretta caretta population in the Western Mediterranean. In JI Richardson and TH Richardson, comps. Proceedings of the 12th Annual Workshop on Sea Turtle Biology and Conservation, pp. 1-6, US Dept. Commerce NOAA Tech. Memo. NMFS-SEFSC-361. http://www.sefsc.noaa.gov/species/turtles/techmemos.htm.
Email notes response to queries to R. Aguilar (2001) DOWNLOAD
Allen, L. 2004. Memorandum to Samuel G. Pooley, Acting Regional Administrator, and Jeffrey Polovina, Acting Science Center Director. Criteria for Estimating Post-hooking Mortality in Marine Turtles as a Result of Interactions with Longline Gear for Purposes of Conducting the February 2004 Section 7 Consultations on Pelagic Fisheries in the Pacific. National Marine Fisheries Service. DOWNLOAD
Balazs, G., Pooley, S., Murakawa, S. 1995. Guidelines for Handling Marine Turtles Hooked or Entangled in the Hawaii Longline Fishery: Results of an Expert Workshop Held in Honolulu, Hawaii March 15-17, 1995. NOAA Technical Memorandum NOAA-TM-NMFS-SWFSC-222. National Marine Fisheries Service, Southwest Fisheries Science Center, Honolulu Laboratory, Honolulu, Hawaii, USA. DOWNLOAD
Bjorndal KA, Bolten AB, Lagueux CJ. 1994. Ingestion of marine debris by juvenile sea turtles in coastal Florida habitats. Marine Pollution Bulletin 28(3): 154–158. DOWNLOAD
Carruthers, E., Schneider, D., Neilson, J. 2009. Estimating the odds of survival and identifying mitigation opportunities for common bycatch in pelagic longline fisheries. Biological Conservation 142: 2620-2630. DOWNLOAD
Casale, P., Freggi, D., Rocco, M. 2008. Mortality induced by drifting longline hooks and branchlines in loggerhead sea turtles, estimated through observation in captivity. Aquatic Conservation: Marine and Freshwater Ecosystems 18: 945-954. DOWNLOAD
Chaloupka, M., Parker, D., Balazs, G. 2004. Modelling post-release mortality of loggerhead sea turtles exposed to the Hawaii-based pelagic longline fishery. Marine Ecology Progress Series 280: 285-293. DOWNLOAD
Chaloupka, M., Work, T., Balazs, G., Murakawa, S., Morris, R. 2008. Cause-specific temporal and spatial trends in green sea turtle strandings in the Hawaiian Archipelago (1982-2003). Marine Biology 154: 887-898. DOWNLOAD
Epperly, S. 2011. HMS Biological Opinion Mortality Ratio Requirement. Memorandum to Bonnie Ponwith, Director, Southeast Fisheries Science Center. National Marine Fisheries Service, Southeast Fisheries Science Center, Miami, Florida, USA. DOWNLOAD
Epperly, S.P., Boggs, C. 2004. Post-hooking mortality in pelagic longline fisheries using "J" hooks and circle hooks. Application of new draft criteria to data from the Northeast Distant Experiments in the Atlantic. National Marine Fisheries Service, Protected Resources & Biodiversity Division,Internal Document Number PRD-03/04-04, 8p. DOWNLOAD http://www.sefsc.noaa.gov/turtledocs/UPR_Epperly_Boggs_2004.pdf
Epperly, S., Garrison, L., Stokes, L. 2009. Sea turtle bycatch reduction in the U.S. Atlantic Pelagic Longline Fishery-preliminary analysis. Presented to Advisory Board (of NMFS), February 17, 2009 and the 29th Annual Symposium on Sea Turtle Biology and Conservation, February 18, 2009, Brisbane, Australia, 27p. (Posted 2/2009). Powerpoint presentation. http://www.sefsc.noaa.gov/turtles/AP_Epperly_etal_pre_post_regulation_ISTS_2009.pdf
Fox, W., Knowles, D., Morehead, B. 2001. Memorandum For William T. Hogarth, Acting Assistant Administrator for Fisheries. Mortality of Sea Turtles in Pelagic Longline Fisheries – Decision Memorandum. National Marine Fisheries Service, Sliver Spring, MD, USA. DOWNLOAD
Hays, G. C., A. C. Broderick, B. J. Godley, P. Luschi, and W. J. Nichols. 2003. Satellite telemetry suggests high levels of fishing-induced mortality in marine turtles. Marine Ecology Progress Series 262:305–309. DOWNLOAD
Mangel, J. et al. 2011. Post-capture movements of loggerhead turtles in the southeastern Pacific Ocean. Marine Ecology Progress Series 433: 261-272. DOWNLOAD
Moraes-Neto, M., et al. 2003. Retrieval of an esophageal foreign body (fish hook) using esophagostomy in an olive Ridley turtle, Lepidochelys olivacea. Journal of Herpetological Medicine and Surgery 13: 26-28. DOWNLOAD
Musyl, M., Domeier, M., Nasby-Lucas, N., Brill, R., McNaughton, L., Swimmer, J., Lutcavage, M., Wilson, S., Galuardi, B., Liddle, J. 2011. Performance of pop-up satellite archival tags. Marine Ecology Progress Service 433: 1-28. DOWNLOAD
NMFS. 2001. Stock Assessment of Loggerhead and Leatherback Sea Turtles and an Assessment of the Impact of the Pelagic Longline Fishery on the Loggerhead and Leatherback Sea Turtles of the Western North Atlantic. NOAA Technical Memorandum NMFS-SEFSC-455. National Marine Fisheries Service, Southeast Fisheries Science Center. http://www.sefsc.noaa.gov/turtles/TM_455_NMFS.pdfNOTE: Refer to (i) Appendix 4 (mislabeled Appendix 5) on pages 313-335; and (ii) Chapter 4 on pages 152-160.
NMFS. 2010. Sea Turtle Life History Form. National Marine Fisheries Service. DOWNLOAD
NMFS. 2010. Careful release protocols for sea turtle release with minimal injury. NOAA Technical Memorandum NMFS-SEFSC-580. National Marine Fisheries Service Southeast Fisheries Science Center. 2008, Revised 2010. 130p. http://www.sefsc.noaa.gov/turtles/TM_NMFS_SEFSC_580_2010.pdf.
Oros J, Calabuig P, Deniz S. 2004. Digestive pathology of sea turtles stranded in the Canary islands between 1993 and 2001. Veterinary Record 155(6): 169–174.
Oros, J., Torrent, A., Calabuig, P., Deniz, S. 2005. Diseases and causes of mortality among sea turtles stranded in the Canary Islands, Spain (1998-2001). Diseases of Aquatic Organisms 63: 13-24. DOWNLOAD
Parker, D.M., Balazs, G.H., Murakawa, S.K.K., and Polovina, J.J. 2005. Post-hooking survival of loggerhead sea turtles taken by pelagic longline fishing in the North Pacific. In Proceedings of the twenty-first annual symposium on sea turtle biology and conservation. NOAA Technical Memorandum NMFS-SEFSC-528. Edited by M.S. Coyne and R.D. Clark. pp. 50-52. http://www.sefsc.noaa.gov/species/turtles/techmemos.htm.
Ryder, C., Conant, T., Schroeder, B. 2006. Report of the Workshop on Marine Turtle Longline Post-Interaction Mortality. Bethesda, Maryland, USA, 15-16 January, 2004. NOAA Technical Memorandum NMFS-OPR-29. National Marine Fisheries Service, Bethesda, Maryland, USA. DOWNLOAD
Sasso,C., Epperly, S. 2007. Survival of pelagic juvenile loggerhead turtles in the open ocean. Journal of Wildlife Management 71(6): 1830-1835. DOWNLOAD http://www.sefsc.noaa.gov/turtles/PR_Sasso_Epperly_2007_JWildManag.pdf
Secretariat of the Pacific Community. 2009. Longline terminal gear identification guide. ISBN 978-982-00-0374-3. DOWNLOAD
Southeast Fisheries Science Center. 2011. Protocols for categorizing sea turtles for post-release mortality estimates. NMFS Southeast Fisheries Science Center Contribution PRD-2011-07, August 17, 2011, 7p. DOWNLOAD http://www.sefsc.noaa.gov/turtledocs/UPR_SEFSC_NMFS_2011_P-HMortality_est.pdf
Stokes, L. et al. 2011. Hook ingestion rates in loggerhead sea turtles Caretta caretta as a function of animal size, hook size, and bait. Endangered Species Research 14: doi:10.3354/esr00339. http://www.int-res.com/articles/esr_oa/n014p001.pdf
Swimmer Y, Brill R, Musyl M (2002) Use of pop-up satellite archival tags to quantify mortality of marine turtles incidentally captured in longline fishing gear. Mar Turtle Newsl 97:3–7. DOWNLOAD
Swimmer, Y., Arauz, R., McCracken, M., McNaughton, L., Ballestero, J., Musyl, M., Bigelow, K., Brill, R. 2006. Diving behavior and delayed mortality of olive ridley sea turtles Lepidochelys olivacea after their release from longline fishing gear. Marine Ecology Progress Services 323: 253-261. DOWNLOAD
Swimmer, Y., McNaughton, L., Foley, D., Moxey, L., Nielson, A. 2009. Movements of olive ridley sea turtles Lepidochelys olivacea and associated oceanographic features as determined by improved light-based geolocation. Endangered Species Research 10: 245-254. DOWNLOAD
Wilson, R. 2011. The price tag. Nature 469: 164-5. DOWNLOAD
Work and Balazs (2010) Pathology and distribution of sea turtles landed as bycatch in the Hawaii-based North Pacific pelagic longline fishery. J.Wild.Diseases, 46(2) 422-432. DOWNLOAD
Kemp's ridley radiographs – examples of types of hooks and positions – provided by Joe Flanagan.
Examples of Mustad circle hook widths - download image