Resultados de la búsqueda
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Structure and distribution of the slope fish community in the vicinity of the sub-Antarctic Prince Edward Archipelago
(depth range 200-1500 m) of the sub-Antarctic Prince Edward Islands and surrounding sea rises have been ... investigated during the pilot survey conducted in April 2001 onboard fishing vessel MV Ibis. A total of 56 fish ... taxa were collected during the survey, of which 43 were identified to species level, 8 to the genus ... sampling depth and near-bottom temperature explained 56% of both total fish CPUE and diversity variation ...
Meeting Document : SC-CAMLR-XXIII/BG/20 : Autor(es): Delegation of South Africa
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Distribution, biological characteristic and biomass of icefish from the results of inventory trawling survey carried out by STM-8390 Atlantida in January–March 2002
Abstract: Results of the inventory trawling survey of icefish carried out by Russian vessel STM ... foraging. Champsocephalus gunnary 22-28 cm in length at the age of 2-3 predominated on all grounds of the ... Subarea, except the north-eastern part. During the survey, specimens 15 cm in length at the age of 2 ... prevailed in pelagic catches. Peculiarity of Ch. gunnary biology in 2002 consisted in high internal fatness ...
Meeting Document : WG-FSA-02/79 : Autor(es): Zh.A. Frolkina and P.S. Gasiukov (Russia)
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Population dynamics of the wandering albatross (Diomedea exulans) on Macquarie Island and the effects of mortality from longline fishing
Abstract: The estimated breeding population of wandering albatrosses on Macquarie Island ... increased from 17 in 1956 to a maximum of 97 in 1966, and then declined at an average rate of 8.1% per year ... emigration). The decline is correlated with the onset of large-scale fishing for tuna in the southern ... hemisphere using longlines. The effect of longline mortality on the population dynamics of the wandering ...
Meeting Document : WG-IMALF-94/07 : Autor(es): William K. de la Mare and Knowles R. Kerry (Australia)
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IDENTIFYING PATTERNS IN DIET OF MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) AT SOUTH GEORGIA USING BOOTSTRAPPED CONFIDENCE INTERVALS OF A DIETARY INDEX
confidence intervals for an index of relative importance (% IRIDC) of prey categories. Diet varied ... ) fish tended to prey on a higher proportion of T. gaudichaudii and small euphausids such as Thysanoessa ... sp. and took smaller quantities of E. superba. In a season of poor krill availability (summer of 2003 ... -2004) the proportion of krill in the diet, stomach fullness and fish condition (indicated by length ...
Meeting Document : WG-FSA-08/29 : Autor(es): C.E. Main, M.A. Collins, R. Mitchell and M. Belchier (UK)
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Preliminary results on by-catch of fishes caught by the fishery vessel Chiyo Maru No. 3 to the north of the South Shetland Islands (February to March, 1996)
Abstract: Investigations on by-catch of fishes captured during krill fishing by F/V Chiyo Maru No ... . 3 were made from 3 February to 6 March, 1996 to the north of the South Shetland Islands. Among 147 ... hauls examined, a total of 99 specimens belonging to 5 families and 14 species were captured as by-catch ... in 41 hauls. Notothenioid juveniles were found in 30 hauls carried out in waters with a depth of 87 ...
Meeting Document : WG-EMM-96/52 : Autor(es): Ichii, T., Kawaguchi, S., Naganobu, M.
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Population demography of Antarctic fur seals: the costs of reproduction and implications for life-histories
Abstract: 1. This study examined the costs of reproduction in terms of future survival and ... , to estimate the rate of increase of the population as 10•7% per annum. 3. The average annual survival ... of food. Survival rate was unrelated to any other environmental or demographic parameter including ... population size. 4. There was no evidence of senescence. Survival rate was not related to year of birth or ...
Meeting Document : WG-EMM-95/26 : Autor(es): Reid, K., Croxall, J.P., Lunn, N.J., Boyd, I.L.
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Variants of the ASPM assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity which attempt to reconcile CPUE and catch-at-length data
Abstract: Two variants of the ASPM assessment of the Prince Edward Islands toothfish resource are ... examined. One allows for the possibility of changes in somatic growth rate in response to increased food ... -recruitment relationship. A fit of the first variant yields the biologically implausible result of a decrease ... processes. Therefore, unfortunately, neither of the variants examined appears able to resolve the ...
Meeting Document : WG-FSA-SAM-04/12 : Autor(es): Brandão, A., Butterworth, D.S.
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At-sea distribution and diet of an endangered top predator: links of white-chinned petrels with commercial longline fisheries
conservation concern. To build conservation strategies it is essential to estimate likelihood of seabird ... bycatch and amount of overlap between bird’s foraging and commercial fishing areas. We tracked 21 adult ... , during breeding period in 2006 and 2008. At-sea foraging distribution of white-chinned petrels was mainly ... French Exclusive Economic Zone (EEZ) and other Commission for the Conservation of Antarctic Marine Living ...
Meeting Document : WG-FSA-10/P01 : Autor(es): K. Delord, C. Cotté, C. Péron, C. Marteau, P. Pruvost, N. Gasco, G. Duhamel, Y. Cherel and H. Weimerskirch
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Assessment of fishable krill biomass on the basis of the acoustic surveys results using geostatistical methods
Abstract: ABSTRACT Applicability of geostatistical methods in processing the acoustic fields of ... usefulness of these methods in studying the structure of krill density field for biomass assessment in ... compliance with different thresholds of their fishery importance. The structure of krill density field in ... small areas and constitutes only part of the total biomass concentrated within each coastal SSMU (SGW ...
Meeting Document : WG-SAM-10/07 Rev. 1 : Autor(es): S.M. Kasatkina and P.S. Gasyukov (Russia)
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The fish fauna of the Argentine Islands region (Antarctica; 12 UAE 2007–2008) and morphometrical changeability of Notothenia coriiceps (Richardson, 1844)
presented. The quantitative indexes of different species fishes and the analysis of their dominant groups ... and morphometrical analyses of two groups Notothenia coriiceps from the Meek-Penola Channel and near ... the west coast of Grotto Island are conducted. It is exposed, that these two groups of fish species ... , except for hepato-somatic. Individuals of both groups’ species of fish had the low indexes of adiposeness ...
Meeting Document : WG-FSA-12/P06 : Autor(es): V.N. Trokhymets, V.A. Tymofyeyev and J.S. Perechrest