Search results
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A methodological proposal to monitor changes in coastal fish populations by the analysis of pellets of the blue-eyed shag Phalacrocorax atriceps
Abstract: A proposal to monitor changes in coastal fish populations is presented in this document ... . The methodology considered is based in the analysis of regurgitated pellets of the blue-eyed shag ... changes in coastal fish populations by the analysis of pellets of the blue-eyed shag Phalacrocorax ...
Meeting Document : WG-EMM-95/84 : Author(s): Barrera-Oro, E., Casaux, R.
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Fish identification guide for Observers in CCAMLR krill fisheries
field guide designed to assist in improving the quality of observer by-catch data collected in the ... family specific keys for species found in the Southern Ocean. Members are invited to provide information ... Observers in CCAMLR krill fisheries Approval: Approved ...
Meeting Document : WG-EMM-13/07 : Author(s): Secretariat
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Spatio-temporal trends of longline fishing effort in the Southern Ocean and implications for seabird by-catch
distant-water pelagic fleets began fishing for tuna and tuna-like species in the early 1950s. Along with ... thousands of baited hooks in a day across many kilometres of water. These waters are often used as foraging ... Ocean’s longline fleets on seabird populations, this paper describes the trends in longline effort of the ... major pelagic and demersal fisheries in southern waters. The total reported effort from all longline ...
Meeting Document : WG-FSA-02/43 : Author(s): G.N. Tuck, T. Polacheck and C.M. Bulman (Australia)
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Sexual dimorphism and sexual segregation in foraging strategies of northern giant petrels Macronectes halli during incubation
dimorphism, in terms of the intersexual food competition hypothesis, on foraging and fasting strategies of ... , duration of foraging trips) was greater for females than for males. In contrast, foraging efficiency ... body reserves. In males the total mass gain was best explained by mass at departure and body size. We ... , promoting sexual size dimorphism. Our results indicate that sex-specific differences in fasting endurance ...
Meeting Document : WG-FSA-99/38 : Author(s): J. González-Solís, J.P. Croxall and A.G. Wood (United Kingdom)
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Distribution and abundance of Antarctic krill in the vicinity of Elephant Island during the 1994 austral summer
from four acoustic surveys conducted in the vicinity of Elephant Island, Antarctica, from mid-January ... biomass in the same survey portion was estimated to be 359 X 106 t. During the second and third surveys ... high densities of krill were mapped in the shoal waters to the north of Elephant Island; biomasses were ... during the last five years of AMLR surveys in the Elephant Island study area and one-fifth of the 1990 ...
Meeting Document : WG-Joint-94/09 : Author(s): R.P. Hewitt and D.A. Demer (USA)
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Has climate change promoted genetic fragmentation in the ice-dependent fish Pleuragramma antarcticum?
pelagic life cycle and plays a major trophic role in the coastal Antarctic marine ecosystem. A previous ... pools, and population structure. In the present study, we used 16 EST-linked microsatellites to ... variability in the southwestern AP, while significant genetic differences were detected on a small geographic ... anti-clockwise Coastal Current, than in the opposite direction. Reduced level of gene flow along the ...
Meeting Document : WG-FSA-13/67 : Author(s): C. Agostini, T. Patarnello (Italy), J. Ashford, J. Torres (USA) and L. Zane (Italy)
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Preliminary examination of otolith microchemistry to determine stock structure in Antarctic toothfish (Dissostichus mawsoni) between SSRU 88.1C and 88.2H
sites. Discrimination of otolith natal signatures using Al:Ca and Zn:Ca showed greater classification ... natal signatures using Al:Ca and Zn:Ca showed greater classification success (79%), compared ...
Meeting Document : WG-SAM-14/33 : Author(s): R. Tana, B.J. Hicks, C. Pilditch and S.M. Hanchet (New Zealand)
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Apparent decrease of Weddell seal numbers in the western Ross Sea
molting haul outs in the western Ross Sea: Edisto Inlet- Moubray Bay, northern Victoria Land, and ... Edisto-Moubray as well. The timing of decline, or perhaps spreading (low numbers of seals in more places ... ), is unknown but appears unrelated to changes in sea ice conditions, which was our initial hypothesis ... . We analyzed both historic and satellite-derived ice data but found only an expansion of pack ice in ...
Meeting Document : WG-EMM-14/44 : Author(s): D.G. Ainley, M.A. Larue (USA), I. Stirling (Canada), S. Stammerjohn and D.B. Siniff (USA)
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Joint report on exploratory fishing in Divisions 58.4.1 and 58.4.2 between the 2011/12 and 2015/16 fishing seasons
be determined for Divisions 58.4.1 and 58.4.2, and precautionary management arrangements are in place ... as set out in Conservation Measures 41-11 and 41-05. Multiple exploratory fishing research plans are ... currently in place by Australia (commenced 2015/16), France (commencing 2016/17), Japan (commencing 2016/17 ... proponents of research in these Divisions (WG-SAM-16 para. 3.12). Accordingly, a single consolidated research ...
Meeting Document : WG-FSA-16/30 : Author(s): Delegations of Australia, France, Japan, Republic of Korea and Spain
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Assessment of Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.3
Abstract: Assessment of the Patagonian toothfish (D. eleginoides) in Subarea 48.3 indicates that ... the current status of the stock is at 50% of B 0. Spawning biomass has been relatively constant in ... recent years. Projections indicate that a constant catch of 2,420 tonnes in the 2020 and 2021 seasons ... toothfish (Dissostichus eleginoides) in Subarea 48.3 Microsoft Word File: fsa-2019-28.docx Approval ...
Meeting Document : WG-FSA-2019/28 : Author(s): T. Earl