Influence of environmental and fishery parameters on loggerhead sea turtle by-catch in the longline fishery in the Azores archipelago and implications for conservation

Journal of the Marine Biological Association of the United Kingdom

Volumn 91, Issue 8, 2011, Pages 1697-1705

  Ferreira, R L ^a   Martins, H R ^b   Bolten, A B ^c   Santos, M A ^b   Erzini, K ^d  

^a UNIVERSIDADE DO ALGARVE   (Portugal)

^b UNIVERSITY OF THE AZORES   (Portugal)

^c UNIVERSITY OF FLORIDA   (United States)

^d UNIVERSITY OF ALGARVE   (Portugal)

Author keywords

Azores; Blue shark; By catch; Caretta caretta; Longline fishery; Oceanic stage juveniles; Swordfish

Indexed keywords

BATHYMETRIC SURVEY; BYCATCH; CATCH PER UNIT EFFORT; HABITAT CONSERVATION; JUVENILE; LONGLINING; MESOSCALE EDDY; SEA SURFACE TEMPERATURE; SHARK FISHERY; THERMOHALINE CIRCULATION; TURTLE; WIND FORCING;

AZORES; PORTUGAL;

CARETTA; CARETTA CARETTA; CHELONIIDAE; CHONDRICHTHYES; PRIONACE GLAUCA; TESTUDINES; XIPHIAS GLADIUS;

EID: 80755184705     PISSN: 00253154     EISSN: 14697769     Source Type: Journal    
DOI: 10.1017/S0025315410000846     Document Type: Article

References (38)

1. Aires-da-Silva A., Ferreira R.L. and Pereira J.G. (2008) Blue shark catch rate patterns from the Portuguese longline fishery in the Azores. In Pikitch E.K. and Camhi M. (eds) Sharks of the open ocean. Oxford: Blackwell Publishing, pp. 230-234.
2. Báez J.C., Raimundo Real P. and Caminas A. (2007) Differential distribution within longline transects of loggerhead turtles and swordfish captured by the Spanish Mediterranean surface longline fishery. Journal of the Marine Biological Association of the United Kingdom 87, 801-803. (Pubitemid 46787774)
3. Bakun A. (1996) Patterns in the ocean. La Paz, Mexico: California Sea Grant College, CIB.
4. Beverly S. and Robinson E. (2004) New deep setting longline technique for by catch mitigation. AFMA report number R03/1398. Secretariat of the Pacific Community, Noumea, New Caledonia, 30 pp.
5. Bigelow K.A., Boggs C.H. and He X. (1999) Environmental effects on swordfish and blue shark catch rates in the US North Pacific longline fishery. Fisheries Oceanography 8, 178-198. (Pubitemid 29342025)
6. Bjorndal K.A., Bolten A.B. and Martins H.R. (2000) Somatic growth model of juvenile loggerhead sea turtles Caretta caretta: duration of pelagic stage. Marine Ecology Progress Series 202, 265-272.
7. Bolten A.B. (2003) Active swimmers passive drifters: the oceanic juvenile stage of loggerheads in the Atlantic system. In Bolten A.B. and Witherington B.E. (eds) Loggerhead sea turtles. Washington, DC: Smithsonian Institution Press, pp. 63-68.
8. Bolten A.B., Martins H.R., Bjorndal K.A. and Gordon E.J. (1993) Size distribution of pelagic stage loggerhead sea turtles (Caretta caretta) in the waters around Azores and Madeira. Arquipélago. Life and Marine Sciences 11A, 49-54.
9. Bolten A.B., Bjorndal K.A., Martins H.R., Dellinger T., Biscoito M.J., Encalada S.E. and Bowen B.W. (1998) Transatlantic developmental migrations of loggerhead sea turtles demonstrated by mtDNA sequence analysis. Ecological Applications 8, 1-7. (Pubitemid 28094399)
10. Bolten A.B., Martins H.R. and Bjorndal K.B. (eds) (2000) Workshop to design an experiment to determine the effects of longline gear modifications on sea turtle bycatch rates: Horta, Faial, Azores, Portugal, 2-4 September 1998. NOAA Technical Memorandum, 50 pp.
11. Bolten A.B., Martins H.R., Isidro E., Santos M.R., Ferreira R.L., Bettencourt E., Giga A., Cruz A. and Bjorndal K. (2004) Experiment to evaluate gear modification on rates of sea turtle bycatch in the swordfish longline fishery in the Azores-Phase 1 and Phase 2. In Long K.J. and Schroeder B.A. (eds) Proceedings of the international technical expert workshop on marine turtle bycatch in longline fisheries. NOAA Technical Memorandum NMFS-OPR-26, pp. 139-153.
12. Carey F.G. and Scharold J.V. (1990) Movements of blue sharks (Prionace glauca) in depth and course. Marine Biology 106, 329-342. (Pubitemid 20325050)
13. Carr A. (1986) Rips, fads, and little loggerheads. BioScience 36, 92-100.
14. Carranza A., Domingo A. and Estrades A. (2006) Pelagic longlines: a threat to sea turtles in the Equatorial Eastern Atlantic. Biological Conservation 31, 52-57.
15. Crouse D.T., Crowder L.B. and Caswell H. (1987) A stage-based population model for loggerhead sea turtles and implications for conservation. Ecology 68, 1412-1423.
16. Ferreira R.L. (1999) Caracterizaçã-o das capturas acessórias da pesca dirigida ao espadarte (Xiphias gladius) nos Açores. BSc thesis. University of Algarve, Portugal.
17. Ferreira R.L. (2005) Caracterizaçã-o das capturas de tartaruga careta (Caretta caretta) e influência de parâmetros ambientais e pesqueiros, na pesca dirigida ao espadarte (Xiphias gladius) nos Açores. MSc thesis. University of Algarve, Portugal.
18. Ferreira R.L., Martins H.R., Bolten A.B. and Silva A. (2001) Impact of longline fishing on sea turtle bycatch in Azores. Arquipélago. Life and Marine Sciences 18A, 75-79.
19. Ferreira R.L., Santos M.R., Martins H.R., Bolten A.B., Isidro E., Giga A. and Bjorndal K. (2003) Accidental captures of loggerhead sea turtles by the Azores longline fishery in relation to target species and gear retrieving time. Proceedings of the 22nd annual symposium on sea turtle biology and conservation, Miami, USA, 4-7
20. April 2002. NOAA Technical Memorandum, NMFS-SEFSC-503, 261-262.
21. ICCAT (1997) Report of the ICCAT swordfish stock assessment session. Halifax, Canada, October 2-9, 1996. Collective Volume of Scientific Papers 46, 165-285.
22. Lewinson R.L., Freeman S.A. and Crowder L.B. (2004) Quantifying the effects of fisheries on threatened species: the impact of pelagic longlines on loggerhead and leatherback sea turtles. Ecology Letters 7, 221-231. (Pubitemid 38370276)
23. Long K.J. and Schroeder B.A. (eds) (2004) Proceedings of the International Technical Expert Workshop on Marine Turtle Bycatch in Longline Fisheries. US Department of Commerce, NOAA Technical Memorandum NMFS-F/OPR-26, 189 pp.
24. Mailly T., Blayo E. and Verron J. (1997) Assessment of the ocean circulation in the Azores region as predicted by a numerical model assimilating altimeter data from Topex/Poseidon and ERS-1 satellites. Annales Geophysicae 15, 1354-1368.
25. Marques M.R. (2001) Navegar. 2nd edition. Europa-América.
26. Martins H., Bolten A. and Ferreira R. (2001) Impact of longline fisheries on sea turtles in the archipelago of the Azores. In Ciccione S., Ross D. and Gall J.Y. (eds) Advance in knowledge and conservation of sea turtles in south-west Indian Ocean. La Réunion 28 Nov.-2 Dec. 1999. Etudes et Colloques du Editions du Centre d'Etude et de Découverte des Tortues Marine de La Reunión 1, pp. 76-77.
27. Polovina J.J., Kobayashi D.R., Parker D.M., Seki M.P. and Balazs G.H. (2000) Turtles on the edge: movement of loggerhead turtles (Caretta caretta) along oceanic fronts, spanning longline fishing grounds in the central North Pacific, 1997-1998. Fisheries Oceanography 9, 71-82. (Pubitemid 30259498)
28. Polovina J.J., Howell E., Kobayashi D.R. and Seki M.P. (2001) The transition zone chlorophyll front, a dynamic global feature defining migration and forage habitat for marine resources. Progress in Oceanography 49, 469-483. (Pubitemid 32925771)
29. Polovina J., Balazs G., Howell E., Parker D., Seki M. and Dutton P. (2004) Forage and migration habitat of loggerhead (Caretta caretta) and olive ridley (Lepidochelys olivacea) sea turtles in the central North Pacific Ocean. Fisheries Oceanography 13, 36-51. (Pubitemid 38162019)
30. Santos R.S., Hawkins S., Monteiro L.R., Alves M. and Isidro E.J. (1995) Marine research, resources and conservation in the Azores. Aquatic Conservation: Marine and Freshwater Ecosystems 5, 311-354. (Pubitemid 26470483)
31. Santos M.R., Bolten A.B., Martins H.R., Gonçalves J. and Ferreira R.L. (2007a) Distribution patterns of sea turtles caught during an experimental longline fishery. Proceedings of the 25th Annual Sea Turtle Symposium, Savannah, USA, 18-22 January 2005. NOAA Technical Memorandum.
32. Santos M.R., Bolten A.B., Martins H.R., Riewald B. and Bjorndal K.A. (2007b) Air-breathing visitors to seamounts: sea turtles. In Pitcher T.J., Morato T., Hart P.J.B., Clark M., Haggan N. and Santos R.S. (eds) Seamounts: ecology, fisheries and conservation. Oxford: Blackwell Publishing, pp. 239-244.
33. Serpa M. (2000) Information on accidental capture of marine turtles in the Azores. In Bolten A.B., Martins H.R. and Bjorndal K.B. (eds) Workshop to design an experiment to determine the effects of longline gear modifications on sea turtle bycatch rates. NOAA Technical Memorandum, pp. 17-21.
34. Simõ-es P.R. (1995) The swordfish (Xiphias gladius L. 1758) fishery in the Azores, from 1987 to 1993. Collected Volume of Scientific Papers, ICCAT SCRS/94/109 44, 126-131.
35. StatSoft Inc (1999) Statistica for Windows. Computer Program Manual, Tulsa, USA.
36. Watson J., Foster D., Epperly S. and Shah A. (2004) Experiments in the western Atlantic northeast distant waters to evaluate sea turtle mitigations measures in the pelagic longline fishery. Report on experiments conducted in 2001-2003, NOAA Fisheries, 123 pp.
37. Witherington B., Kubilis P. and Brost B. (2009) Decreasing annual nest counts in a globally important sea turtle population. Ecological Applications 19, 30-54.
38. Zar J.H. (1996) Biostatistical analysis. 3rd edition. Upper Saddle River, NJ: Prentice-Hall.