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Multivariate effects on seabird bycatch in the legal Patagonian toothfish longline fishery around Crozet and Kerguelen Islands

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Abstract

The effects of temporal, spatial, environmental and operational effects on seabird incidental mortality in the legal Patagonian toothfish longline fishery operating, between 2003 and 2006, in French exclusive economic zones of Crozet and Kerguelen Islands were analysed. During the study period, the mean bycatch rate varied from 0.05 to 0.12 birds per 1,000 hooks. Two species were concerned by incidental mortality: white-chinned petrels (88%) and grey petrels (11.5%). Males of white-chinned petrel seemed more at a risk than females. Logbooks data tended to underreport mortality when compared with dedicated fishery observers. The results indicate that temporal (season or phenology) and spatial (area) factors reflecting mortality risk for seabirds played the most significant role in the incidental mortality of the two species. Operational (integrated weight mainline, number of scaring lines and number of hooks hauled) and environmental factors (wind/vessel angle, moon brightness) were also influential, although less significantly, in increasing this mortality risk. Our two steps analyses by separately modelling the probability of presence and the abundance given presence suggest that the decrease in seabird bycatch over the period was mainly due to an important decrease in probability (occurrence) of mortality.

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References

  • ACAP (2005) Advisory Committee of Agreement on the Conservation of Albatrosses and Petrels. Report of the 1st Meeting of Advisory Committee. ACAP, Hobart, ACAP/AC1/Doc.11 Available via http://www.acap.aq/

  • Anderson S, McArdle B (2002) Sink rate of baited hooks during deployment of a pelagic longline from a New Zealand fishing vessel. New Zealand J Mar Freshw Res 36:195

    Google Scholar 

  • Barbraud C, Delord K, Marteau C, Weimerskirch H (2006) Evaluation de l’impact des pêcheries sur les populations de pétrels à menton blanc et de pétrels gris aux îles Crozet et Kerguelen. Unpublished report, pp 90

  • Barbraud C, Marteau C, Ridoux V, Delord K, Weimerskirch H (2008) Demographic response of a population of white-chinned petrels Procellaria aequinoctialis to climate and longline fishery bycatch. J Appl Ecol 45:1460–1467

    Article  Google Scholar 

  • Barbraud C, Marteau C, Delord K, Weimerskirch H (2009) Estimates of population size of white-chinned petrels and grey petrels at Kerguelen Islands and sensitivity to fisheries. Anim Conserv 12:258–265

    Article  Google Scholar 

  • Barnes KN, Ryan PG, Boix-Hinzen C (1997) The impact of the hake Merluccius sp. longline fishery off South Africa on procellariiform seabirds. Biol Conserv 82:227–234

    Article  Google Scholar 

  • Bartle JA (1990) Sexual segregation of foraging zones in procellariiform birds: implications of accidental capture on commercial fishery longlines of grey petrels (Procellaria cinerea). Notornis 37:146–150

    Google Scholar 

  • Berrow SD, Croxall JP, Grant SD (2000) Status of white-chinned petrels Procellaria aequinoctialis Linnaeus 1758, at Bird Island, South Georgia. Antarct Sci 12:399–405

    Article  Google Scholar 

  • BirdLife International (2004) Procellaria cinerea. In: IUCN 2007, 2007 IUCN Red list of threatened species. http://www.iucnredlist.org. Accessed 16 Jan 2008

  • BirdLife International (2005) Procellaria aequinoctialis. In: IUCN 2007. 2007 IUCN Red List of Threatened Species. http://www.iucnredlist.org. Accessed 15 Jan 2008

  • Boggs CH (2001) In: Melvin EF, Parrish JK (eds) Deterring albatrosses from contacting baits during swordfish longline sets. University of Alaska Sea Grant, Fairbanks, pp 79–94

  • Bregnballe T, Frederiksen M (2006) Net-entrapment of great cormorants Phalacrocorax carbo sinensis in relation to individual age and population size. Wildl Biol 12:143–150

    Article  Google Scholar 

  • Brooke M (1990) In: Poyser T, AD (eds) The Manx shearwater. Academic press, London

  • Brothers N (1991) Albatross mortality and associated bait loss in the Japanese longline fishery in the Southern Ocean. Biol Conserv 55:255–268

    Article  Google Scholar 

  • Brothers N, Cooper J, Løkkeborg S (1999a) The incidental catch of seabirds by longline fisheries: worldwide review and technical guidelines for mitigation. FAO Fisheries Circular 937, 101

  • Brothers N, Gales R, Reid T (1999b) The influence of environmental variables and mitigation measures on seabird catch rates in the Japanese tuna longline fishery within the Australian Fishing Zone, 1991–1995. Biol Conserv 88:85–101

    Article  Google Scholar 

  • Brothers N, Gales R, Reid T (2001) The effect of line weighting on the sink rate of pelagic tuna longline hooks and its potential minimising seabird mortalities, CCSBT-ERS/0111/53, CCSBT, Canberra, pp 23

  • Bugoni L, Mancini PL, Monteiro DS, Nascimento L, Neves TS (2008) Seabird bycatch in the Brazilian pelagic longline fishery and a review of captures rates in the southwestern Atlantic Ocean. Endanger Species Res 5:137–147

    Article  Google Scholar 

  • Bull LS (2007) Reducing seabird bycatch in longline, trawl and gillnet fisheries. Fish Fish 8:31–56

    Google Scholar 

  • Catard A, Weimerskirch H, Cherel Y (2000) Exploitation of distant Antarctic waters and close shelf-break waters by white-chinned petrels rearing chicks. Mar Ecol Prog Ser 194:249–261

    Article  Google Scholar 

  • Cherel Y, Weimerskirch H, Duhamel G (1996) Interactions between longline vessels and seabirds in Kerguelen waters and a method to reduce seabird mortality. Biol Conserv 75:63–70

    Article  Google Scholar 

  • del Hoyo J, Elliott A, Sargatal J (eds) (1992) Handbook of the birds of the World, vol 1. Ostrich to ducks. Lynx Edicions, Barcelona

    Google Scholar 

  • Delord K, Gasco N, Weimerskirch H, Barbraud C (2005) Seabird mortality in the Patagonian toothfish longline fishery around Crozet and Kerguelen Islands, 2001–2003. CCAMLR Sci 12:53–80

    Google Scholar 

  • Favero M, Khatchikian CE, Arias A, Rodriguez MPS, Canete G, Mariano-Jelicich R (2003) Estimates of seabird by-catch along the Patagonian shelf by Argentine longline fishing vessels, 1999–2001. Bird Conserv Int 13:273–281

    Article  Google Scholar 

  • Fletcher D, Mackenzie D, Villouta E (2005) Modelling skewed data with many zeros: a simple approach combining ordinary and logistic regression. Environ Ecol Stat 12:45–54

    Article  Google Scholar 

  • Gales R, Brothers N, Reid T (1998) Seabird mortality in the Japanese tuna longline fishery around Australia, 1988–1995. Biol Conserv 86:37–56

    Article  Google Scholar 

  • Gandini P, Frere E (2006) Spatial and temporal patterns in the bycatch of seabirds in the Argentinian longline fishery. Fish Bull 104:482–485

    Google Scholar 

  • Gilman E, Brothers N, Kobayashi DR (2005) Principles and approaches to abate seabird by-catch in longline fisheries. Fish Fish 6:35–49

    Google Scholar 

  • Huin N (1994) Diving depths of white-chinned petrels. Condor 96:1111–1113

    Article  Google Scholar 

  • IOTC (2005) Report of the first session of the IOTC working party on bycatch. FAO, pp 1–15

  • IOTC (2006) Report of the second session of the IOTC working party on bycatch

  • IOTC (2007) Report of the third session of the IOTC working party on bycatch. FAO, pp 1–39

  • Jouventin P, Stahl JC, Weimerskirch H, Mougin JL (1984) The seabirds of the French subantarctic islands and Adélie Land, their status and conservation. In: Croxall JP, Evans PGH, Schreiber RW (eds) status and conservation of the world’s seabirds. ICBP Technical Publication 2, pp 609–625

  • Klaer N, Polacheck T (1998) The influence of environmental factors and mitigation measures on by-catch rates of seabirds by Japanese longline fishing vessels in the Australian region. Emu 98:305–316

    Article  Google Scholar 

  • Martin AR, Poncet S, Barbraud C, Foster E, Fretwell P, Rothery P (2009) The white-chinned petrel (Procellaria aequinoctialis) on South Georgia: population size, distribution and global significance. Polar Biol 32:655–661

    Article  Google Scholar 

  • Melvin EF, Parrish JK (2008) Seabird bycatch: trends, roadblocks and solutions. University of Alaska Sea Grant, USA

    Google Scholar 

  • Mills MSL, Ryan PG (2005) Modelling impacts of long-line fishing: what are the effects of pair-bond disruption and sex-biased mortality on albatross fecundity? Anim Conserv 8:359–367

    Article  Google Scholar 

  • Moreno CA, Rubilar PS, Marschoff E, Benzaquen L (1996) Factors affecting the incidental mortality of seabirds in the dissostichus eleginoides in the Southwest Atlantic (subarea 48.3, season 1995). CCAMLR Sci 3:79–91

    Google Scholar 

  • Murray TE, Bartle JA, Kalish SR, Taylor PR (1993) Incidental capture of seabirds by Japanese southern bluefin tuna longline vessels in New Zealand waters, 1988–1992. Bird Conserv Int 3:181–210

    Article  Google Scholar 

  • Nel DC, Ryan PG, Watkins BP (2002) Seabird mortality in the patagonian toothfish longline fishery around the Prince Edward Islands, 1996–2000. Antarct Sci 14:151–161

    Article  Google Scholar 

  • Nel DC, Taylor FE, Ryan PG, Cooper J (2003) Population dynamics of the wandering albatross Diomedea exulans at Marion Island: longline fishing and environmental influences. Afr J Mar Sci 25:503–517

    Google Scholar 

  • Petersen SL (2006) Incidental mortality of seabirds, turtles and sharks: a review of data collected east of 20 degrees by South African observers. In: FAO (ed) Report of the first session of the IOTC working party on bycatch, IOTC-2005-WPBy-06, IOTC 2005, Phuket, pp 1–15. http://www.iotc.org/files/proceedings/2005/wpby/IOTC-2005-WPBy-06.pdf

  • Petersen SL, Honig MB, Nel D (2007) The impact of longline fisheries on seabirds in the Benguela current large marine ecosystem. In: Petersen SL, Nel D, Omardien A (eds) Towards an ecosystem approach to longline fisheries in the Benguela: an assessment of impacts on seabirds, sea turtles and sharks. WWF South Africa Report Series, 2007/Marine/001, pp 9–31

  • Phillips R, Silk JRD, Croxall JP, Afanasyev V (2006) Year-round distribution of white-chinned petrels from South Georgia: relationships with oceanography and fisheries. Biol Conserv 129:336–347

    Article  Google Scholar 

  • Pinaud D, Weimerskirch H (2007) At-sea distribution and scale-dependent foraging behaviour of petrels and albatrosses: a comparative study. J Anim Ecol 76:9–19

    Article  PubMed  Google Scholar 

  • Reid T, Catry P (2006) In: Falklands Conservation and New Island South Conservation Trust (eds) The white-chinned petrel population of the Falkland Islands. Stanley

  • Ridoux V (1994) The diets and dietary segregation of seabirds at the subantarctic Crozet Islands. Mar Ornithol 22:1–192

    Google Scholar 

  • Robertson GG, Gales R (1998) Albatross biology and conservation. Surrey Beatty and Sons (ed), Sydney

  • Robertson GG, McNeill M, Smith NW, Wienecke BC, Candy S, Olivier F (2006) Fast sinking (integrated weight) longlines reduce mortality of white-chinned petrels (Procellaria aequinoctialis) and sooty shearwaters (Puffinus griseus) in demersal longline fisheries. Biol Conserv 132:458–471

    Article  Google Scholar 

  • Roche C, Guinet C, Gasco N, Duhamel G (2007) Marine mammals and demersal longline fishery interactions in Crozet and Kerguelen exclusive economic zones: an assessment of depredation level. CCAMLR Sci 14:67–82

    Google Scholar 

  • Ryan PG, Boix-Hinzen C (1999) Consistent male-biased seabird mortality in the patagonian toothfish longline fishery. Auk 116:851–854

    Google Scholar 

  • SAS Institute (1998–2001) SAS language guide for personal computers, Release 8.2 edn. SAS Institute, Inc., Gary, NC

  • SC-CAMLR (2002) Scientific Committee for the Conservation of Antarctic Marine Living Resources. Report of the 21th Meeting of the Scientific Committee. CCAMLR, Hobart, SC-CAMLR-XXI/BG/22

  • SC-CAMLR (2006) Scientific Committee for the Conservation of Antarctic Marine Living Resources. Report of the 25th Meeting of the Scientific Committee. CCAMLR, Hobart

  • SC-CAMLR (2008) Scientific Committee for the Conservation of Antarctic Marine Living Resources. Report of the 27th Meeting of the Scientific Committee. CCAMLR, Hobart

  • Small C (2005) Regional fisheries management organisations: their duties and performance in reducing bycatch of albatrosses and other species. In: BirdLife International, Cambridge, pp 1–101

  • Stahl JC, Bartle JA, Jouventin P, Roux JP, Weimerskirch H (1996) Atlas of seabird distribution in the south-west Indian Ocean. Centre National de la Recherche Scientifique-UPR 1934 Unpublished report, Villiers en Bois, pp 226

  • Sullivan BJ, Reid T, Bugoni L (2006) Seabird mortality on factory trawlers in the Falkland Islands and beyond. Biol Conserv 131:495–504

    Article  Google Scholar 

  • Tuck GN, Polacheck T, Croxall JP, Weimerskirch H (2001) Modelling the impact of fishery by-catches on albatross populations. J Appl Ecol 38:1182–1196

    Article  Google Scholar 

  • Tuck GN, Polacheck T, Bulman CM (2003) Spatio-temporal trends of longline fishing effort in the Southern Ocean and implications for seabird bycatch. Biol Conserv 114:1–27

    Article  Google Scholar 

  • Watkins BP, Petersen SL, Ryan PG (2008) Interactions between seabirds and deep-water hake trawl gear: an assessment of impacts in South African waters. Anim Conserv 11:247–254

    Article  Google Scholar 

  • Waugh S, Barbraud C, Delord K, Robertson G (2008) Seabird bycatch in the French toothfish fishery: report of a cooperative study in 2008. SC-CAMLR-XXVII/BG/10, Unpublished report, pp 55

  • Weimerskirch H, Jouventin P (1987) Population dynamics of the Wandering Albatross, Diomedea exulans, of the Crozet Islands: cause and consequences of the population decline. Oikos 49:315–322

    Article  Google Scholar 

  • Weimerskirch H, Zotier R, Jouventin P (1989) The avifauna of the Kerguelen islands. Emu 89:15–29

    Google Scholar 

  • Weimerskirch H, Brothers N, Jouventin P (1997) Population dynamics of Wandering Albatross Diomedea exulans and Amsterdam Albatross D. amsterdamensis in the Indian Ocean and their relationship with long-line fisheries: conservation implications. Biol Conserv 79:257–270

    Article  Google Scholar 

  • Weimerskirch H, Catard A, Prince PA, Cherel Y, Croxall JP (1999) Foraging white-chinned petrels Procellaria aequinoctialis at risk: from the tropics to Antarctica. Biol Conserv 87:273–275

    Article  Google Scholar 

  • Weimerskirch H, Capdeville D, Duhamel G (2000) Factors affecting the number and mortality of seabirds attending trawlers and long-liners in the Kerguelen area. Polar Biol 23:236–249

    Article  Google Scholar 

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Acknowledgments

We are grateful to the French Southern Territories for organisation of the programme of on-board observers and for financial and logistical support. We thank Prof. G. Duhamel, P. Pruvost and fishing observers for their contribution in collecting data, without which this study would not have been possible. We thank the Syndicat des Armements Réunionnais de Palangriers Congélateurs and the French Polar Institute (IPEV programme n°109-H. Weimerskirch) for financial and logistical support. We thank M. Louzao for useful comments on the manuscript. We thank three anonymous referees for constructive comments.

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  1. Centre d’Études Biologiques de Chizé UPR 1934, Centre National de la Recherche Scientifique, 79360, Villiers en Bois, France

    Karine Delord, Christophe Barbraud & Henri Weimerskirch

  2. Département Milieux et Peuplements Aquatiques, Muséum National d’Histoire Naturelle, UMR 5178 USM 401, CP26 43 rue cuvier, 75231, Paris cedex 05, France

    Nicolas Gasco

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  1. Karine Delord
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  2. Nicolas Gasco
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Correspondence to Karine Delord.

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Delord, K., Gasco, N., Barbraud, C. et al. Multivariate effects on seabird bycatch in the legal Patagonian toothfish longline fishery around Crozet and Kerguelen Islands. Polar Biol 33, 367–378 (2010). https://doi.org/10.1007/s00300-009-0713-3

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