Search results
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Seabird and longline interactions: effects of a bird-scaring streamer line and line shooter on the incidental capture of northern fulmars Fulmarus glacialis
line and a line shooter was investigated in commercial longlining in the northern Atlantic off the ... mitigation measures, a combination of both and no mitigation measure. A total of 58,420 hooks were set in ... was caught when the bird-scaring line was used in combination with the line shooter. In contrast, 32 ... fulmars were caught in sets with no mitigation device and thirteen in sets with the line shooter alone ...
Meeting Document : WG-FSA-01/78 : Author(s): S. Løkkeborg (Norway) and G. Robertson (Australia)
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A generalized discriminant for sexing fulmarine petrels from external measurements
birds to predict the sex of unknown individuals in field studies. Geographic variation in size and shape ... , Daption capense; and Snow Petrel, Pagodroma nivea) assigned 81 to 98% of birds in the samples to the ... single discriminant. Adequate performance of this generalized discriminant in samples of different ... species shows its validity for use in other populations of any of these species. The generalized function ...
Meeting Document : WG-CEMP-94/24 : Author(s): J.A. van Franeker and C.J.F. ter Braak (The Netherlands)
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Distribution and population structure of Dissostichus eleginoides and D. mawsoni on BANZARE Bank (CCAMLR Division 58.4.3b), Indian Ocean, Antarctic
fishing season. D. eleginoides was mainly caught in the shallower bank <1000 m, while D. mawsoni was ... mainly caught in the deeper slope >1500 m. The separation of the two species by depths may be related ... in D. eleginoids, while the size structure was very similar among fishing seasons and showed the ... unimodal distribution in D. mawsoni. D. eleginoides showed resting stage in sexual maturity, while D ...
Meeting Document : WG-FSA-10/47 : Author(s): K. Taki, M. Kiyota, T. Ichii and T. Iwami (Japan)
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Distribution and population structure of Dissostichus eleginoides and D. mawsoni on BANZARE Bank (CCAMLR Division 58.4.3b), Indian Ocean, Antarctic
fishing season. D. eleginoides was mainly caught in the shallower bank <1000 m, while D. mawsoni was ... mainly caught in the deeper slope >1500 m. The separation of the two species by depths may be related ... in D. eleginoids, while the size structure was very similar among fishing seasons and showed the ... unimodal distribution in D. mawsoni. D. eleginoides showed resting stage in sexual maturity, while D ...
Meeting Document : WG-SAM-10/16 : Author(s): K. Taki, M. Kiyota, T. Ichii and T. Iwami (Japan)
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Results of the first winter longline survey to the northern Ross Sea region to investigate toothfish reproductive life history
Abstract: The first winter longline survey of Antarctic toothfish in the northern Ross Sea region ... was successfully completed during June and July 2016. A total of 55 longlines sets were completed in ... . Spawning and spent Antarctic toothfish were captured late in the survey on undersea features to the ... northwest of stratum 1. Gonad staging and gonadosomatic indices suggest that males in spawning condition may ...
Meeting Document : WG-FSA-16/37 : Author(s): D. Stevens, D. Di Blasi and S. Parker
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Analysis of krill trawling positions north of the South Shetland Islands (Antarctic Peninsula area), 1980/81–1999/2000
/81 to 1999/2000 seasons in the area to the north of South Shetland Islands were analyzed in relation ... in the early 1980’s, along the shelf slope in the mid- to late 1980’s, and were highly variable, from ... the shelf across to the outer shelf in the early to late 1990’s. Intra-annual variation of trawling ... positions showed a general pattern starting from the outer shelf, and proceeded towards the shelf later in ...
Meeting Document : WG-EMM-01/35 : Author(s): S. Kawaguchi and K. Segawa
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Comparison of the diet of the blue-eyed shag Phalacrocorax atriceps by the analysis of pellets and stomach contents
Abstract: A total of 45 pellets from the blue-eyed shag Phalacrocorax atriceps were collected in ... diet, but Harpagijer antarcticus was the most frequent and important fish in number. The prey ... represented in the pellets were consistent with those observed in stomach contents sampled simultaneously in ... the same colony; however, they differed in importance. A daily mean of 0.7 pellets per bird was ...
Meeting Document : WG-EMM-95/79 : Author(s): Silva, P., Coria, N., Favero, M., Casaux, R.
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ANALYSIS OF ICE-FISH (CHAMPSOCEPHALUS GUNNARI) SPATIAL DISTRIBUTION FOR OPTIMIZATION OF THE BOTTOM TRAWL SURVEY SAMPLING
Abstract: The spatial distribution characteristics of ice-fish in the near-bottom layer are ... analyzed using the acoustic data obtained in the South Georgia area during the Russian bottom trawl surveys ... 2002. Acoustic and trawl density samples obtained in the near-bottom layer covered by trawl survey are ... horizontal and vertical fish distribution in the near-bottom layer of the survey area is shown. Influence of ...
Meeting Document : SG-ASAM-09/07 : Author(s): S. Kasatkina (Russia)
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A model at the level of the foraging trip for the indirect effects of krill (Euphausia superba) fisheries on krill predators
appropriate for the predators (and the fishery) fluctuates from one year to the next according to an age ... appropriate for the predators (and the fishery) fluctuates from one year to the next according to an age ...
Meeting Document : WG-EMM-98/48 : Author(s): M. Mangel and P.V. Switzer (USA)
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UPDATED BIOLOGICAL PARAMETERS FOR THE ANTARCTIC STARRY SKATE, AMBLYRAJA GEORGIANA, FROM THE ROSS SEA
next year. Author(s): M.P. Francis and S. Mormede (New Zealand) Title: UPDATED BIOLOGICAL PARAMETERS ... and a new data logsheet should provide better estimates of this parameter next year. ...
Meeting Document : WG-FSA-08/20 : Author(s): M.P. Francis and S. Mormede (New Zealand)