Résultats de la recherche
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Summary of monitoring and research activities at Svarthamaren, Dronning Maud Land
of the population monitoring show that the number of pairs with chick or egg varied between 55,387 ... -178,240 (mean 119,000). Assuming that about 10 % of the colony is situated in inaccessible parts outside ... the area covered by the monitoring system the mean number of pairs producing a chick each year is ... about 132,000. On average 52% of the reproductive fraction of the population breeds each year indicating ...
Meeting Document : WG-EMM-97/78 : Auteur(s): Lorentsen, S., Tveraa, T., Røv, N.
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An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island
Abstract: Assessments of the abundance and potential yield of mackerel icefish (Champsocephalus ... gunnari) populations at Heard Island are developed from the results of four scientific surveys conducted ... in 1990, 1992, 1993 and 1997. The assessments include estimates of all the parameters required, based ... of maturity and a weight length relationship. The results show that characteristics of icefish ...
Meeting Document : WG-FSA-97/29 : Auteur(s): de la Mare, W.K., Constable, A., Williams, R.
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Preliminary model of krill fishery behaviour in Subarea 48.1
Abstract: A simple deterministic model is described which models the behaviour of the krill ... fishery in Subarea 48.1 and estimates the effort applied and the catch of krill in fine-scale squares ... . The distribution of catches predicted by the model, which is restricted to the months December to ... March, compare favourably with the general distribution of catches in Subarea 48.1. A number of ...
Meeting Document : WG-KRILL-93/14 : Auteur(s): D.J. Agnew (Secretariat)
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Shifts in the demersal fish community of South Georgia
Abstract: The heavily exploited fish stocks of South Georgia have been declining since the early ... 1970's. Use of a non-parametric method revealed a significant change in this community from the ... 1986/87 survey to the 1987/88 survey. This change was the result of reductions in the abundance of ... Champsocephalus gunnari and Notothenia squamifrons, and the increased presence of Pseudochaenichthys georgianus ...
Meeting Document : SC-CAMLR-VII/BG/24 : Auteur(s): United States of America
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Some aspects of the by-catch fish spawning and oogenesis
Abstract: On the basis of the biological material collected on some by-catch fishes during ... Antarctic toothfish fishery from 2002 till 2008 in different areas of the Southern Ocean (Collaboration Sea ... , D'Urville, Ross and.mundsen Seas) it was established that spawning of C. dewitti and species X ... continental shelf at depth of 300-600 m during summer season (may be autumn for sp. X) of the southern ...
Meeting Document : WG-FSA-10/51 : Auteur(s): V. Prutko (Ukraine) and D. Chmilevsky (Russia)
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THE STRUCTURE AND FUNCTIONING OF MARINE ECOSYSTEM IN ARGENTINE ISLANDS WATERS
structure of marine ecosystem in a poorly investigated coastal area of Argentine Island Archipelago The ... structure and functioning of the local biota has a specific response of environmentally different involved ... elements to a series of limiting factors. Mass phyto- and zoobenthos and macro plankton species accumulate ... toxic heavy metals. The pollution inhibits normal reproduction of Antarctic krill, the population ...
Meeting Document : WG-EMM-11/P5 : Auteur(s): E.Z. Samyshev
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Design of the used on Russian vessels Sparta and Chio Maru No. 3 bottom trot-line for toothfish fishing
Abstract: This work is prepared in accordance with recommendation of 4.18 WG-SAM-12 about ... submitting of data on fishing gears` construction that was used on Russian longliners Sparta” and “Chio Maru ... №3”. The trotline of a special design that was used is formed of main floating line and fastened ... catching of VME-organisms to a large extent, because at the presented design of a longline each line with a ...
Meeting Document : WG-FSA-12/22 : Auteur(s): I.G. Istomin, V.V. Akishin, V.A. Tatarnikov and I.I. Gordeev (Russia)
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The dynamic of krill fishery and the environment in the Antarctic Peninsula Subarea (48.1)
Abstract: The dynamic of krill fishery in the Subarea 48.1 and its relation to the environment ... variability was analyzed. It was revealed that the dynamic of ААО indices (Antarctic Oscillation Index) used ... as an indicator of the inter-annual and long-period fluctuations of hydrometeorological conditions at ... high latitudes of the Southern Hemisphere was traced through the climatic changes of the environmental ...
Meeting Document : WG-EMM-13/32 : Auteur(s): S.M. Kasatkina, V.N. Shnar and S.N. Burikin (Russia)
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Revised research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. with special reference to the information on spawning dynamics in Division 58.4.3a
Abstract: The current season (2014/15) is the final one of the first three-season research which ... numbers of tag recaptures from the estimated stock sizes using the Petersen method were generally ... results in other regions in the Southern Indian Ocean. The stock seems to be self-sustainable because of ... the existence of fish with advanced gonadal indices in the slope area and recruitment of small sized ...
Meeting Document : WG-FSA-15/19 : Auteur(s): Delegation of Japan
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Proposal for a second longline survey of toothfish in the northern Ross Sea region (SSRUs 882A and B)
Abstract: We propose the continuation of a multi-member research project using standardised ... longline gear to sample the toothfish populations in the northern areas (61°‑ 66° S) of SSRUs 88.2A–B. The ... purpose of the research as requested by the Scientific Committee (SC-CAMLR XXXII, paragraph 3.76) is to ... patterns and improve estimation of population characteristics by Ross Sea spatial population models. Four ...
Meeting Document : WG-SAM-16/15 : Auteur(s): S.J. Parker, R.J.C. Currey, M. Söffker, C. Darby, D. Welsford and O.R. Godø