Résultats de la recherche
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Analysis of changes in biomass of fish stocks in the south Georgia Area in 1976/77 – 1986/87
C.gunnari stock. High biomass density appeared with 2-4 years intervals after recruiting an abundant year ... N.gibberifrons. Recently, an increase of the C.aceratus stock is observed and, at the same time, a gradual ...
Meeting Document : SC-CAMLR-VI/BG/40 : Auteur(s): M. Mucha and W. Ślósarczyk (Poland)
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The brief review of the AtlantNIRO’s investigations of living marine resources: whales, krill and fish, in the Atlantic sector of the Antarctic
Abstract: The USSR has fished in the Atlantic Sector of the Antarctic for three living marine ... aggregations of various whale species, migrations etc. which is widely used for correct stocks evaluation and ... were undertaken, from 1971 to 1980 – 25 voyages, from 1981 to 1989 – 22 voyages. For all the period of ... studies in the ASA an enormous primary database was collected by AtlantNIRO and VNIRO. Investigations of ...
Meeting Document : WG-EMM-04/30 : Auteur(s): F. Litvinov, D. Tormosov, Zh. Frolkina (Russia)
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Relationships of Antarctic krill (Euphausia superba Dana) variability with westerlies fluctuations and ozone depletion in the Antarctic Peninsula area
(Euphausia superba) is an important subject to clarify the Antarctic marine ecosystem. We have assessed ... , krill stock density seems to be slightly recovering year by year after 1990 indicated a minimum of it ... -level pressure gradients across Drake Passage during 1982-1993. The years with high pressure gradients ... season), 1987/88 and 1990/91, while the years of extremely low values meaning weak westerly winds ...
Meeting Document : WS-AREA 48-98/5 : Auteur(s): M. Naganobu, K. Kutsuwada, Y. Sasai and S. Taguchi (Japan)
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Antarctic neritic krill Euphausia chrystallorophias: spatio-temporal distribution, growth and grazing rates
for only 180 days per year, mean growth rates ranged from 0.070-0.075 to 0.019-0.022 mm per day during ... the first and the fourth year, respectively. Von Bertalanffy growth curves calculated for different ... /calyptopis I at the beginning of January and calyptopis III/furcilia I during February. The year-l cohort was ... -2860 and 215-652 μg (C)∙m-2∙d-l for adults and larvae, respectively. This is equivalent to 0.06-1.12 ...
Meeting Document : WG-Joint-94/10 : Auteur(s): E.A. Pakhomov (Ukraine) and R. Perissinotto (South Africa)
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Sensitivities in the assessment of the Patagonian toothfish (D. eleginoides) in Subareas 48.3 and 48.4 to truncation of tagging data
available recapture data (excluding in-year recaptures). A theoretical analysis of the use of data from ... double-tagged recaptures suggests that including recaptures from fish at liberty for long periods will ... Status: Content Approved Delegation responsibility for releasing documents: United Kingdom ... Abstract: The assessment of toothfish in CCAMLR subarea 48.3 currently uses the first four years ...
Meeting Document : WG-SAM-17/35 : Auteur(s): T. Earl
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Plan of research program of the Russian Federation in Subarea 48.5 (Weddell Sea) in season 2012/13
with CCAMLR decision rules. The program contains several phases and prospected for 3-5 years. Detailed ... time of the year, this large water area is very similar with the Ross Sea. This similarity, which could ... as one of the most promising area for exploratory fishery of Dissostichus sp. However, fishery in ... collecting data for reliable stock assessment and following estimation of precautionary limits in accordance ...
Meeting Document : WG-SAM-12/04 : Auteur(s): A.F. Petrov, V.A. Tatarnikov and I.I. Gordeev (Russia)
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Plan of research program of the Russian Federation in Subarea 48.5 (Weddell Sea) in season 2012/13
with CCAMLR decision rules. The program contains several phases and prospected for 3-5 years. Detailed ... time of the year, this large water area is very similar with the Ross Sea. This similarity, which could ... as one of the most promising area for exploratory fishery of Dissostichus sp. However, fishery in ... collecting data for reliable stock assessment and following estimation of precautionary limits in accordance ...
Meeting Document : WG-FSA-12/12 : Auteur(s): A.F. Petrov, V.A. Tatarnikov and I.I. Gordeev (Russia)
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Designing Marine Protected Area networks: insights from the CHARM3 project
Abstract: This paper presents results from two analyses that have been undertaken as part of ... . The first analysis investigates the use of species area curves for setting marine habitat targets and ... is a need for developing approaches that account for differences in sampling effort to ensure that ... Action 12 of the CHARM3 project, which focuses on spatial conservation planning in the English Channel ...
Meeting Document : WS-MPA-11/22 : Auteur(s): R.J. Smith and K. Metcalfe (UK)
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DNA barcoding highlights a cryptic species of grenadier (genus Macrourus) in the Southern Ocean
M. whitsoni from the Ross Sea region provided strong evidence for two sympatric species: M. whitsoni ... the Ross Sea region, and provisionally identified as M. whitsoni, were divided into two COI haplotypes ... same Ross Sea region specimens classified individuals into two groups: one with 9 pelvic fin rays, pale ... , based on a Restriction Fragment Length Polymorphism (RFLP) test. Three characters counted/scored in the ...
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)
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Possible approach to krill movement estimation by hydroacoustic observations
-swarm distance (BSD) and between-clusters distance (BCD).For ocean current velocity- 20 sm/sec,ship ... transects on rectangular polygon is discribed.Dimensions of polygon and frequency of acoustic observations ...
Meeting Document : WG-KRILL-91/28 : Auteur(s): P.P. Fedulov (USSR)