WG-IMALF-94/01 More Info |
Provisional agenda |
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WG-IMALF-94/02 More Info |
List of participants |
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WG-IMALF-94/03 More Info |
List of documents |
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WG-IMALF-94/04 More Info |
Seabirds mortality on longline fishing for tuna in southern Brazil Vaske, T. 1991. Ciencia e Cultura, 43 (5): 388-390. |
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WG-IMALF-94/05 More Info |
Seabird mortality in longline fisheries around South Georgia Dalziell, J. and M. de Poorter. 1993. Polar Record, 29 (169): 143-145. |
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WG-IMALF-94/06 More Info |
Albatross mortality and associated bait loss in the Japanese longline fishery in the Southern Ocean Brothers, N. 1991. Biol. Conservation, 55: 255-268.
Abstract:
A conservative calculation of the number of albatrosses killed annually on Japanese longlines in southern oceans in 44 000. The actual figure could be double and is sufficiently high to substantiate claims that serious declines in albatross populations are due to this fishing activity. Albatrosses have an economic impact 0n longline fisheries with annual losses to the southern bluefin tuna Read More
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WG-IMALF-94/07 More Info |
Population dynamics of the wandering albatross (Diomedea exulans) on Macquarie Island and the effects of mortality from longline fishing William K. de la Mare and Knowles R. Kerry (Australia)
Abstract:
The estimated breeding population of wandering albatrosses on Macquarie Island increased from 17 in 1956 to a maximum of 97 in 1966, and then declined at an average rate of 8.1% per year. Mark-recapture analysis shows that the population is not closed (i.e., subject to immigration and emigration). The decline is correlated with the onset of large-scale fishing for tuna in the southern Read More
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WG-IMALF-94/08 More Info |
Use of a population model to assess the impact of longline fishing on wandering albatross populations Coleen L. Moloney, John Cooper, Peter G. Ryan and W. Roy Siegfried (South Africa)
Abstract:
An age-structured model of a wandering albatross Diomedea exulans population is developed to simulate population trends over time, using demographic parameters from the population at Possession Island Crozets, during 1968 to 1986. The simulation results portray a population decreasing at a rate of 2.29% per year, which concurs with global population trends. Sensitivity analyses of model Read More
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WG-IMALF-94/09 More Info |
Reduced bait loss and bycatch of seabirds in longlining by using a seabird scarer S. Løkkeborg and Å. Bjordal (Norway)
Abstract:
Although longlining is regarded as a highly conservation oriented method of fishing, bycatch of seabirds on longlines is a problem in certain seasons and areas. Birds feeding on the bait during setting of the gear might cause considerable bait loss and occasional hooking of birds might eventually give high mortalities considering the large amounts of hooks used. Both from a fishery and bird Read More
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WG-IMALF-94/10 More Info |
Report on a tuna long-lining fishing voyage aboard Southern Venture to observe seabird by-catch problems M.J. Imber (New Zealand)
Abstract:
Incidental captures of seabirds, and the behaviour of seabirds around the fishing gear as it was deployed, were observed during 8-days' fishing of a New Zealand-owned tuna long-liner. From 11,200 hooks set 6 seabirds were hooked and recovered: 5 Wandering Albatross Diomedea exulans of which 3 were released alive, and one Black-browed Mollymawk D. melanophrys impavida. Relatively more birds Read More
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WG-IMALF-94/11 More Info |
Changes in population size of large Procellariiformes breeding in the French sub-Antarctic islands: potential influence of southern fisheries and particularly long lining Henri Weimerskirch and Pierre Jouventin (France)
Abstract:
Studies carried out over the past three decades in the French austral territories indicate that most albatross and giant petrel populations have markedly declined. Demographic studies indicate that these declines are mainly the result of increased adult mortality. This high rate of mortality has been suspected to be the result of mortality incurred in long-line fisheries. Satellite tracking Read More
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WG-IMALF-94/12 More Info |
Interactions between longline vessels and seabirds in Kerguelen waters and a method to reduce seabird mortality Yves Cherel, Henri Weimerskirch and Guy Duhamel (France)
Abstract:
In recent years, a new longline fishery for the fish Dissostichus eleginoides has developped in the vicinity of South Georgia and Kerguelen islands, two internationally important breeding areas for procellariiform birds. Attractiveness of this fishery for seabirds, together with the incidental capture of birds and a method to reduce mortality were investigated during 13 days of fishing Read More
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WG-IMALF-94/13 More Info |
Entanglements and incidental mortality of birds and seals - summary of reports to CCAMLR, 1985 to 1993 Secretariat
Abstract:
This paper summarises the incidence of entanglements and incidental mortality of birds and seals reported by CCAMLR Members for the CCAMLR Convention Area and adjacent waters from 1985 onwards. A bibliography on entanglement, incidental mortality and effects of marine debris on seabirds and marine mammals is attached. The bibliography includes references taken from papers submitted to CCAMLR Read More
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WG-IMALF-94/14 More Info |
Report on incidental bird mortality and effectiveness of mitigation measures during demersal long lining by Ihn Sung 66 in Subarea 48.3 - December 1993 to February 1994 C. Jones and G. Parkes (United Kingdom)
Abstract:
A method of surveying incidental mortality of seabirds during longlining operations and the effectiveness of mitigation measures is described. An alternative design of streamer line for use with the 'Spanish' method of longlining (separate hauling and fishing lines) is described. The results of observations of incidental mortality of seabirds made during the fishing operations of the Korean Read More
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WG-IMALF-94/15 More Info |
Seabird interaction with long-lining operations for Dissostichus eleginoides around South Georgia, April and May 1994 J.R. Ashford, J.P. Croxall (United Kingdom), P.S. Rubilar and C.A. Moreno (Chile)
Abstract:
Long-lining operations for Dissostichus eleginoides off South Georgia were assessed for incidental mortality and interactions with seabirds. Twenty-seven lines were observed and ninety-eight mortalities recorded over twenty sets of the line; no mortalities occurred during hauls. The 16 sets made at night contributed 15% of the overall mortality, all of white-chinned petrels: the four day time Read More
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WG-IMALF-94/16 More Info |
Interactions between cetaceans and long-lining operations for Patagonian toothfish Dissostichus eleginoides around South Georgia J.R. Ashford (United Kingdom) and P.S. Rubilar (Chile)
Abstract:
Longlining operations for Dissostichus eleginoides around South Georgia were assessed for interactions with sea mammals. Twenty-seven lines were observed and interactions recorded during twenty-five of these. During setting of lines neither mortalities nor interactions were recorded. All interactions occured during hauling operations, both during the day and at night. Killer whales (Orcinus Read More
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WG-IMALF-94/17 More Info |
Mortality of albatrosses and other seabirds produced by tuna long-line fisheries in Uruguay L. Barea, I. Loinaz, Y. Marin, C. Ríos, A. Saralegui, A. Stagi, R. Vaz-Ferreira and N. Wilson (Uruguay) |
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WG-IMALF-94/18 More Info |
Seabird mortality from longline fisheries: evidence from Marion and Gough Islands J. Cooper (South Africa)
Abstract:
Two tuna longline fishing hooks have been recovered from beside Wandering Albatross Diomedea exulans nests at Marion Island in the 1990s. No hooks have been found at Gough Island and no birds have been found dead ashore on either island as a result of fishing gear. Recoveries of banded birds at sea suggest Wandering Albatrosses are more at risk to being hooked than are giant petrels Read More
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WG-IMALF-94/19 More Info |
Principles of birdline construction and use to reduce bait loss and bird deaths during longline setting N. Brothers (Australia) |
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WG-IMALF-94/20 More Info |
Catching Fish Not Birds
A guide to improving your longline fishing efficiency (English version) N. Brothers (Australia) |
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WG-IMALF-94/21 More Info |
Population trends and vulnerability to tuna longlining bycatch of albatrosses, mollymawks and Procellaria petrels of New Zealand seas M.J. Imber (New Zealand) |
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WG-IMALF-94/22 More Info |
Aspects of seabird bycatch and its mitigation in the NZ longline fishery for tuna M.J. Imber (New Zealand) |
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WG-IMALF-94/23 More Info |
Cooperative analysis of New Zealand seabird bycatch data - interim report New Zealand |
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WG-IMALF-94/24 More Info |
Influence of bait quality on seabird mortality and economic losses in longline fishing: an experimental approach N. Brothers and A. Foster (Australia) |
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