Résultats de la recherche
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Diet study of Antarctic toothfish caught in the east Antarctic based on stomach content, fatty acid and stable isotope analyses
Paper Title: Diet study of Antarctic toothfish caught in the east Antarctic based on stomach ... for Antarctic toothfish (Dissostichus mawsoni) in the small-scale research unit (SSRU) 5841C in the ... lesser extent squid. FA profiles in muscle tissues of Antarctic toothfish were very similar to those of ... between them. δ 15 N values of Antarctic toothfish were higher than for the other species collected ... Science, Vol. 22 (2015): 29–44 29 Diet study of Antarctic toothfish caught in the east Antarctic based ... fluctuations in the availability of fishery resources and biodiversity in the Southern Ocean. The changes in ... population size could be a crucial cascading force in the food web of the Southern Ocean (Jo et al., 2013 ... region, a comprehensive understanding of the trophic ecol- ogy of Antarctic toothfish is required in ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 29–44 : Auteur(s): Park, H.J. , I. Yeon, E. Han, Y.J. Lee, S.M. Hanchet, G.W. Baeck, Y. Kwon, S.G. Choi, D.W. Lee and C.K. Kang*
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Towards the development of a management plan for mackerel icefish (Champsocephalus gunnari) in Subarea 48.3
gunnari) in Subarea 48.3 Abstract / Description: Management of the mackerel icefish (Champsocephalus ... gunnari) at South Georgia is complicated by the likelihood of substantial periodic variations in natural ... probability that C. gunnari populations will be depleted even in the absence of fishing, which, given the ... Paper Title: Towards the development of a management plan for mackerel icefish (Champsocephalus ... and probably in the long term. As in Figure 2, 1 March-30 April Mean of ln(recruits) Standard ... increments per year Mean annual M Interannual variability in M Length of fish when 50% recruited to the ... stock not being depleted is about 0.64 in the absence of fishing. Reduction by 10% would mean a target ... DEVELOPMENT OF A MANAGEMENT PLAN FOR THE MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) IN SUBAREA 48.3 D.J ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 63–77 : Auteur(s): Agnew, D.J., I. Everson, G.P. Kirkwood and G.B. Parkes
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Myctophids in the diet of Antarctic predators
Paper Title: Myctophids in the diet of Antarctic predators Abstract / Description: The aim of ... , whales, fish and squids) in order to help evaluate the importance of myctophids in their diets. This ... found in the diet of one species of squid, 18 species of fish (Nototheniidae- eight, Channichthyidae ... , petrels- five, prions- one and cormorants- one) and two species of seals. Myctophids in the diet of ... SC-CAMLR-X/BG/6 MYCTOPHIDS IN THE DIET OF ANTARCTIC ... diet of various top predators (birds, seals, whales, fish and squids) in order to help evaluate the ... importance of myctophids in their diets. This review covers publications for the period since 1984-85 to the ... present. In total, over 50 publications contained some information on the myctophid component of the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 335–368 : Auteur(s): Sabourenkov, E.
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Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea
Paper Title: Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the ... least a 6–12 month period, resulting in a developed group of oocytes accumulating at the final ... northern Ross Sea region depends on the proportion of the total population occurring in the northern Ross ... -at-spawning for female and male Antarctic toothfish (Dissostichus mawsoni) from fish sampled in the ... - AND AGE-AT-SPAWNING OF ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN THE ROSS SEA S.J. Parker ... reproductive ecology of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea has been dif- ficult to ... - tiple size modes of developing oocytes present in the ovary throughout the year, making macroscopic ... method avail- able to assess spawning status is to seek histologi- cal evidence of spawning in the ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 53–73 : Auteur(s): Parker, S.J. and P.J. Grimes
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A stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region incorporating multi-year mark-recapture data
Paper Title: A stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in the Ross ... catch-at-age data. This is the first published stock assessment of toothfish in the Ross Sea region. It ... longline fishery for Antarctic toothfish (Dissostichus mawsoni) has been carried out in the Ross Sea region ... since the late 1990s. No fishery-independent methods of monitoring stock abundance were plausible, and ... south of the Antarctic Con- vergence (Gon and Heemstra, 1990). Finfish fisheries in Antarctic waters ... (CCAMLR). To date, the main fishery for Antarctic toothfish in the high seas of the CAMLR Conven- tion ... Area has taken place in the Ross Sea region. For purposes of management, the ‘Ross Sea region’ (RSR ... (2014): 39–62 39 A stock Assessment model of AntArctIc toothfIsh (Dissostichus mawsoni) In the ross ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 39–62 : Auteur(s): Mormede, S., A. Dunn and S.M. Hanchet
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Draft New Article emphasising obligations for preservation of the environment in Antarctic Treaty Area
contained in this Convention shall affect the special o~ligations and responsibilities cf the Consult•tive ... Pnrties under the Antarctic Treaty for the protection and preservation of the environment of the ...
Document : Site Section: The Organisation
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Biological characteristics of Antarctic fish stocks in the southern Scotia Arc region
Paper Title: Biological characteristics of Antarctic fish stocks in the southern Scotia Arc ... region Abstract / Description: Commercial exploitation of finfish in the southern Scotia Arc took place ... , despite substantial catches in the first four years of the fishery and ample opportunity to sample these ... catches. The only scientific surveys of these stocks during these years were conducted by Germany in 1985 ... CHARACTERISTICS OF ANTARCTIC FISH STOCKS IN THE SOUTHERN SCOTIA ARC REGION K.-H. Kock Institut fur ... Hamburg, Germany Abstract Commercial exploitation of finfish in the southern Scotia Arc took place ... 1998, despite substantial catches in the first four years of the fishery and ample opportunity to ... differed by up to 55-60% from one shelf area to the other, mostly due to differences in the abundance of ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 1–41 : Auteur(s): Kock, K.-H., C.D. Jones and S. Wilhelms
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Quantifying vessel performance in the CCAMLR tagging program: spatially and temporally controlled measures of tag-detection rates
tagging program is critical to the successful management of a number of toothfish fisheries in Antarctica ... an integrated stock assessment. Previous attempts to assess the relative reliability of vessels in ... tagging in CCAMLR Subareas 88.1 and 88.2. The index derived provides evidence of significant differences ... in the relative performance of vessels in the Antarctic toothfish fishery in CCAMLR Subareas 88.1 and ... yields (Mormede et al., 2011a, 2011b; Mormede, 2011). In those analyses, the assumed values of ... parameters. For example, under- estimating the tag-detection rate of the fleet will result in an ... fishing event to account for the difference in the number of fish scanned by the case and the control ... fishing events. Spatial and temporal variability of the recapture rates are accounted for in the ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 73–80 : Auteur(s): Mormede, S. and A. Dunn
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Fatty acid and stable isotope analyses to infer diet of Antarctic toothfish caught in the southern Ross Sea
compared to lipid profiles of fish and invertebrate species taken as by-catch in the fishery or collected ... toothfish and trophic structure of the toothfish-related fish food web in the southern Ross Sea ecosystem ... . Similarities in total FA compositions and the FA profiles in muscle tissue of Antarctic toothfish, and ... position of the toothfish. In contrast, similar δ 15 N values between Antarctic toothfish and icefish (D ... , groupings of species by this axis were not distinct. Mean δ13C values of all the species collected in this ... in the fishery or collected from the stomachs of toothfish. Stable carbon and nitrogen isotope ... . barsukovi and T. loennbergii, indicating a higher trophic position of the toothfish. In contrast, similar ... ). In addition, the stomach contents may represent only a snapshot of the dietary items con- sumed at a ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 21–36 : Auteur(s): Jo, H.-S., I. Yeon, C. Lim, S.M. Hanchet, D.-W. Lee and C.-K. Kang
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By-catch of fishes captured by the krill fishing vessel Chiyo Maru No. 2 in Statistical Area 58 (January to March 1995)
Paper Title: By-catch of fishes captured by the krill fishing vessel Chiyo Maru No. 2 in ... variances are calculated from the delta distribution. In numbers, an average of about 14 fish were caught ... that, in the future, more hauls should be sampled for by-catch. The proportion of hauls containing fish ... fishing in the Atlantic sector of the Southern Ocean. This difference may be related to differences in the ... of towing. Confidence intervals for mean by-catch estimates are wide suggesting that, in the future ... mean by-catch (in numbers of fish per tonne of krill caught) for all fish species to the Chiyo Maru ... catch. It is obvious that there is a great deal of uncertainty in the estimates of mean and total by ... from the delta distribution. In numbers, an average of about 14 fish were caught per tome of krill ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 111–123 : Auteur(s): Watters, G