Résultats de la recherche
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A meta-analysis of by-catch in the Ross Sea toothfish fishery
) in the index from two groups of Members flagged vessels, that together contribute 84% of the haul by ... Abstract: Following the recommendation of WG-FSA in 2014 the Secretariat has undertaken an ... analysis of by-catch in CCAMLR longline fisheries. The numerical target catch ratio (the number of target ... vessels. This analysis indicated that, as expected, differences in this index arose due to gear and ...
Meeting Document : WG-SAM-15/23 : Auteur(s): CCAMLR Secretariat
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On the very high likelihood of bycatch of ice krill (Euphausia crystallorophias) in the present-day fishery for Antarctic krill (E. superba)
fishery operates in geographic areas that overlap with the known range of Ice krill, that Ice krill and ... Antarctic krill can occupy similar depths in the water column, and that both species are morphologically ... have been included in the reported Antarctic krill catch. We conclude that the likelihood is ... Responsible Krill harvesting companies; our emphasis) achieved MSC re-certification in August 2015 (https ...
Meeting Document : WG-EMM-18/05 : Auteur(s): A.S. Brierley and R. Proud
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On the status of mesopelagic fish (myctophidae) in the Southern Ocean ecosystem
relationships of myctophids demonstrate that this group of mesopelagic fish plays a significant role in the ... - they are zooplankton-eaters who consume a considerable amount of meso and macroplankton which ... 364 million tonnes. According to its position in the trophic system of the Southern Ocean, myctophids ... producers, in turn guaranteeing the production of organisms at higher trophic levels (certain species of ...
Meeting Document : WG-FSA-93/17 : Auteur(s): A.N. Kozlov (Russia)
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Total mercury and methylmercury concentrations in Antarctic toothfish (Dissostichus mawsoni): Health risk assessment
Abstract: In the present study, the concentrations of total mercury in different organs of the ... Antarctic toothfish (Dissostichus mawsoni) collected from CCAMLR research blocks in Subarea 88.3 and ... concentrations of 0.165 ± 0.095 mg/kg (0.023–0.454 mg/kg) in the Antarctic toothfish. In fish muscle ... , methylmercury accounted for approximately 40% of the total mercury. In a comparison analysis, muscle and liver ...
Meeting Document : WG-FSA-17/P02 : Auteur(s): M. Yoon, M.-R. Jo, K.-T. Son, W.-S. Choi, S. I. Kang, S.-G. Choi, J. H. Lee and T. S. Lee
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Annual report of research fishing operations at Division 58.4.3a in the 2017/18 fishing season
. One fishing cruise by French vessel (“ Mascareignes III ”) took place in May 2018 and caught 2.5 ... Secretariat on the 21th August 2018. In this paper, the data set during current fishing season (2017/18) was ... toothfish (Dissostichus eleginoides) in Division 58.4.3a in the 2017/18 fishing season by France and Japan ... tonnes of D. eleginoides in 58.4.3a. The data set, C2 and Observer data, were provided by the CCAMLR ...
Meeting Document : WG-FSA-18/50 : Auteur(s): Delegations of France and Japan
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A meta-analysis of by-catch in the Ross Sea toothfish fishery
) in the index from two groups of Members flagged vessels, that together contribute 84% of the haul by ... Abstract: Following the recommendation of WG-FSA in 2014 the Secretariat has undertaken an ... analysis of bycatch in CCAMLR longline fisheries. The numerical target catch ratio (the number of target ... vessels. This analysis indicated that, as expected, differences in this index arose due to gear and ...
Meeting Document : WG-FSA-15/04 Rev. 1 : Auteur(s): CCAMLR Secretariat
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Annual report of research fishing operations at Division 58.4.4b in the 2017/18 fishing season
. One fishing cruise by French vessel (Ile Bourbon) took place in March 2018 and caught 1.6 tonne of D ... 3th August, 2018. In this paper, the data set during current fishing season (2017/18) was used for ... toothfish (Dissostichus eleginoides) at Division 58.4.4b in the 2017/18 fishing season by France and Japan ... . eleginoides in 58.4.4b_2. The data set, C2 and Observer data, was provided by the CCAMLR Secretariat on the ...
Meeting Document : WG-FSA-18/67 : Auteur(s): Delegations of Japan and France
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Results of a CCAMLR-sponsored research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea, February 2012
longline surveys to monitor pre-recruit (<100 cm TL) toothfish in the south of SSRUs 881.J and 881.L in ... the southern Ross Sea using standardised gear in a standardised manner; and (ii) To carry out ... experimental depth-stratified fishing in 400–600 m depth adjacent to the survey boundaries to establish the ... carry out a longline survey of pre-recruit toothfish from a commercial fishing vessel in Ross Sea using ...
Meeting Document : WG-FSA-12/41 : Auteur(s): S.M. Hanchet, S. Mormede, S. Parker, A. Dunn (New Zealand) and H.-S. Jo (Republic of Korea)
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Demersal fish communities in the Ross Sea region of Antarctica: comparisons between video and trawl survey methods
provide complementary information and if used together could be effective in routine assessments of ... . Using data collected during a survey of demersal fish communities in the Ross Sea region of Antarctica ... times less abundant in the demersal trawl than the video data but more large individuals were sampled by ... result from size-specific depth preferences in Macrourus spp. and conclude that video and trawl methods ...
Meeting Document : WG-FSA-12/51 : Auteur(s): D.A. Bowden, S.M. Hanchet and P.M. Marriott (New Zealand)
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Preliminary tag-recapture based population assessment of Antarctic toothfish in Subarea 48.4
tagging returns to be 982 tonnes in 2018. Applying the CCAMLR agreed precautionary assumption of average ... Abstract: The stock of Antarctic toothfish (D. mawsoni) in CCAMLR subarea 48.4 is estimated from ... biomass across the time series and harvest rate of γ = 0.038, implies a 2018/19 yield of 37 tonnes ... , unchanged from the 2017/18 catch limit. Historically, a precautionary approach has been applied in treating ...
Meeting Document : WG-FSA-18/26 : Auteur(s): T. Earl and A. Riley