Résultats de la recherche
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Genetic population structure of the mackerel icefish, Champsocephalus gunnari, in Antarctic waters
Abstract: Genetic population structure of the mackerel icefish, Champsocephalus gunnari, in ... Georgia (N = 267; January/February 1991) and the South Orkneys (N = 44; January/February 1991) and ... polymorphic at the 0.95 criterion: glutamate oxaloacetate transaminase, GOT-I 2.6.1.1; α- glycerophosphate ... 1.15.1.1). Routine scoring of 358 fish at the 16 loci revealed below average levels of genetic variability ...
Meeting Document : WG-FSA-91/22 : Auteur(s): G.R. Carvalho and M. Warren (United Kingdom)
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Latitudinal variation of demersal fish assemblages in the western Ross Sea
February and March 2004 and 2008 in the Ross Sea, and around seamounts and islands just to the north at 66 ... °S. The distribution and abundance of 65 species collected in these surveys were examined to ... determine if demersal fish communities varied throughout the area, and what environmental factors might ... influence this. Species accumulation with sample frequency did not reach an asymptote, but the rate of new ...
Meeting Document : WG-FSA-10/P03 : Auteur(s): M.R. Clark, M.R. Dunn, P.J. McMillan, M.H. Pinkerton, A. Stewart and S.M. Hanchet
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The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species
approach for maintaining ecological relationships and providing for the recovery of depleted populations in ... food webs supporting fisheries is proposed. This paper addresses the following general questions for ... taking the ecosystem approach in managing fisheries: (i) how might fisheries impact incidentally on an ... ecosystem, (ii) what should be the conservation objectives for predators of fished species, and (iii) what ...
Meeting Document : WG-EMM-12/P04 : Auteur(s): A.J. Constable
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Characterisation of Muraenolepis species by-catch in the CCAMLR Convention Area
throughout the CCAMLR Convention Area. There are seven known species in the genus, but more work on the ... taxonomy of the group is needed and the number of species is uncertain. The few biological studies ... published suggest a relatively fast growing, semelparous, life history with a maximum age of 11 years. The ... estimate of K from the growth function for specimens assumed to be M. evseenkoi is much higher than for ...
Meeting Document : WG-FSA-12/50 : Auteur(s): S. Parker, P. McMillan and P. Marriott (New Zealand)
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The relative by-catches of taxa associated with vulnerable marine ecosystems by autolines and Spanish longlines
Abstract: We reanalyzed data collected by the longline fishery in Subarea 88.1 to compare the ... bycatches of VME taxa made by vessels using Autolines and Spanish longlines. The fractions of sets with ... positive bycatch, as well as the weights of bycatch when bycatches were observed, were higher for Autolines ... the large number of zero-bycatch sets, we found that both the amounts of positive bycatches and the ...
Meeting Document : WG-FSA-13/41 : Auteur(s): T. Gerrodette and G.M. Watters (USA)
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First global census of the Adélie penguin
Abstract: We report on the first global census of the Adélie Penguin (Pygoscelis adeliae ... % larger (3.79 million breeding pairs) than the last estimate in 1993. We provide the first abundance ... colonizations. These recent colonizations represent approximately 5% of the increase in known breeding ... population and provide insight into the ability of these highly philopatric seabirds to colonize new breeding ...
Meeting Document : WG-EMM-14/P05 : Auteur(s): H.J. Lynch and M.A. LaRue
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Season extensions in the longline fishery for Dissostichus eleginoides in Statistical Division 58.5.2
Abstract: Season extension trials occur step-wise in the longline fishery for Dissostichus ... for the periods between 15 and 30 April, and between 1 and 14 November, during 2013/14 and 2014/15 ... . Based on the results, it proposes a new step-wise trial pre-season extension of the longline fishing ... season to include the period between 1 and 14 April with day/night setting allowed. It also proposes ...
Meeting Document : WG-FSA-15/48 : Auteur(s): J. Barrington and T. Lamb (Australia)
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Diagnostic plots of stock assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region to 2016/17
Abstract: We provide extensive diagnostic plots for the 2017 models R1 and R3 for Antarctic ... toothfish in the Ross Sea as recommended by WG-SAM-15 (2015). The stock assessment rationale and models as ... well as their main diagnostics are described in Mormede (2017). The CASAL files for the assessment ... models were provided to the CCAMLR Secretariat as a zip file. In this paper we present the results for ...
Meeting Document : WG-FSA-17/38 : Auteur(s): S. Mormede
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A photographic reference set for Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea region
) from the Ross Sea region. The photographs were derived from the four otolith reference set blocks used ... by New Zealand with the “sister” otoliths provided to CCAMLR for use by other Members. Two ... photographs are provided for each otolith; one of the prepared otolith surface alone, and a second with ... symbols marking the location where each annulus was counted. The photographs link to an excel spreadsheet ...
Meeting Document : WG-SAM-18/18 : Auteur(s): C. Sutton and S. Parker
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DNA barcoding highlights a cryptic species of grenadier (genus Macrourus) in the Southern Ocean
Abstract: The genus Macrourus is a small group of bentho-pelagic fishes with three species ... recognized in the Southern Ocean and one in cold temperate to Arctic waters in the North Atlantic Ocean. DNA ... four well supported clades among the three Southern Ocean species. Additional specimens collected in ... the Ross Sea region, and provisionally identified as M. whitsoni, were divided into two COI haplotypes ...
Meeting Document : WG-FSA-10/33 : Auteur(s): P.J. Smith (New Zealand), D. Steinke (Canada), P.J. McMillan, A.L. Stewart, S.M. McVeagh (New Zealand), J.M. Diaz De Astarloa (Argentina), D. Welsford and R.D Ward (Australia)