Resultados de la búsqueda
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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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Some components of uncertainty in the CCAMLR 2000 acoustical survey of krill
Abstract: Quickly studied and quantified were sources of uncertainty in the CCAMLR 2000 ... acoustical estimate of krill abundance in FAO statistical area 48. The variance in system calibration was ... evaluated in relation to the effects of variant water temperature and salinity on sound speed, sound ... distorted wave born approximation model of krill TS, fitted with measured distributions of animal lengths ...
Meeting Document : WG-EMM-00/49 : Autor(es): D.A. Demer (USA)
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Preliminary results of investigations into the stock structure of Patagonian toothfish (Dissostichus eleginoides) around Macquarie Island
degree of interchange of Dissostichus eleginoides (Patagonian Toothfish) between two sites 40 nautical ... levels appropriate for population structure analysis, and two of these gave results that suggest samples ... genetic analyses that interchange of fish between the two sites is very low. Of 469 recaptures at both ... performed on small numbers of fish and loci these results must be regarded as preliminary, but if confirmed ...
Meeting Document : WG-FSA-98/39 : Autor(es): A. Reilly, B. Ward and R. Williams (Australia)
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STANDING STOCK, SPATIAL DISTRIBUTION, AND BIOLOGICAL FEATURES OF DEMERSAL FINFISH FROM THE 2009 U.S. AMLR BOTTOM TRAWL SURVEY OF THE SOUTH ORKNEY ISLANDS (SUBAREA 48.2)
Abstract: A random depth stratified bottom trawl survey of South Orkney Islands (CCAMLR Subarea ... season. Detailed information is presented for several of the most abundant demersal finfish species ... biomass within the 500 m isobath of South Orkney Islands. Spatial distribution of standardized finfish ... the northwest sector of the shelf area. The highest densities of demersal finfish occurred at stations ...
Meeting Document : WG-FSA-09/19 : Autor(es): C.D. Jones (USA) and K.-H. Kock (Germany)
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PRELIMINARY ESTIMATION OF PENGUIN BREEDING ABUNDANCE AT SPATIAL-SCALES OF RELEVANCE TO CCAMLR: INCORPORATING UNCERTAINTY IN COUNT DATA
Abstract: One recommendation from the Predator Survey workshop was the undertaking of some ... estimation of SSMU-specific gentoo and Adélie breeding abundance in Area 48, and similar analyses of east ... for availability (e.g. nest failure) and hence would to some extent be biased estimates of the ... breeding population, and would only account for uncertainty in the accuracy of the count data. However, the ...
Meeting Document : WG-EMM-08/53 : Autor(es): H. Lynch, R. Naveen (USA), J. McKinlay, C. Southwell (Australia), P. Trathan (United Kingdom), W. Trivelpiece, S. Trivelpiece (USA) and D. Ramm (CCAMLR Secretariat)
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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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Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by acoustic surveys
Abstract: Acoustic surveys carried out in summer and autumn periods of 1987-1989 estimated the ... biomass of myctophids in the Atlantic sector of the Southern Ocean over the region between 48° and 56°S ... and from 8° to 48W at about 1.7 mill.t. Over the larger part of the surveyed area the fish were sparse ... , their dense concentrations composed predominantly of one myctophid species Electrona carlsbergi occurred ...
Meeting Document : WG-FSA-90/19 : Autor(es): A.A. Filin, K.V. Gorchinsky and V.M. Kiseleva (USSR)
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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)