Resultados de la búsqueda
-
Sources of variance in studies of krill population genetics
Abstract: There is a long-term interest in the population genetics of Antarctic krill species ... resurgence of interest in identifying distinct stocks of swarming krill species has been driven by the ... because of their ecological end economic importance. The possibility that there are distinct genetic ... stocks of these species would affect the design of management strategies for conserving them. A recent ...
Meeting Document : WG-EMM-01/12 : Autor(es): S.N. Jarman and S. Nicol (Australia)
-
Feasibility of trawl surveys to estimate abundance of juvenile toothfish in Subarea 88.1
average over the last three years, 63% of the seabed area from 0–600 m depth was not fishable in January ... % in 2002 to 89% in 2002. Less than 10% of the potential trawl survey area was fishable in all three ... Abstract: This report presents results from a desktop study to determine the feasibility of ... and previous research cruises. The major limitation on a trawl survey in the Ross Sea is ice cover. On ...
Meeting Document : WG-FSA-SAM-04/07 : Autor(es): Wood, B.A., ODriscoll, R.L., Hanchet, S.M.
-
On possibility of using acoustic method to improve quality of Champsocephalus gunnari biomass estimates in Subarea 48.3
acoustic and biological data obtained by Russian RN ATLANTIDA in the area of South Georgia Island (January ... Abstract: An attempt has been made to study icefish as an object of acoustic survey basing on the ... obtained from the catches by midwater trawl to those estimated with TS in situ measurements for fish ... recorded within the pelagic zone. Basing on the analysis of acoustic measurements and results of commercial ...
Meeting Document : WG-FSA-00/31 : Autor(es): S. Kasatkina (Russia)
-
Results of acoustic assessment of krill biomass in Subarea 48.2 during summer 1996
Abstract: In the period from 24 February to 7 March 1996 in the cruise of RV "Atlantida" ... sq.mi1es was located in the zone of two circulation systems of climatic scale interaction: Antarctic ... ). Recorded range of MSBS values variations was (-77÷-43) dB. Kri11 biomass estimation in the study area ... ; acoustic assessment of krill biomass and distribution was carried out in study area restricted with 59° 10 ...
Meeting Document : WG-EMM-96/36 : Autor(es): Sunkovich, V.I., Kasatkina, S.M., Abramov, V.M., Polischuk, M.I., Sushin, V.A., Shnar, V.N.
-
Spatial overlap of krill-dependent predators and krill fishery catches and a proposal for subdivision of catch limits in Subarea 48.1
understanding of spatial overlap between predators and fishing activity. We provide estimates of the spatial ... in Subarea 48.1. In general, overlap of summer and winter foraging habitats with krill catches in ... during the winter period, especially in the Bransfield Strait. Across years, predator distributions ... might affect the distribution of fishing effort. A comparison of CEMP parameters from two years with ...
Meeting Document : WG-EMM-14/36 : Autor(es): J.T. Hinke, M.E. Goebel (USA), M.M. Santos (Argentina), P.N. Trathan (UK), W.Z. Trivelpiece and G.M. Watters (USA)
-
IDENTIFYING PATTERNS IN DIET OF MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) AT SOUTH GEORGIA USING BOOTSTRAPPED CONFIDENCE INTERVALS OF A DIETARY INDEX
-2004) the proportion of krill in the diet, stomach fullness and fish condition (indicated by length ... was followed by a large reduction (> 80%) in the estimated annual biomass of C. gunnari the ... sp. and took smaller quantities of E. superba. In a season of poor krill availability (summer of 2003 ... -weight relationships) were significantly lower than in the other summer seasons. The poor krill season ...
Meeting Document : WG-FSA-08/29 : Autor(es): C.E. Main, M.A. Collins, R. Mitchell and M. Belchier (UK)
-
Mesoscale abundance of fish in a ‘box’ west of Elephant Island
of Elephant Island (Subarea 48.1) in order to study the meso – scale abundance of demersal finfish ... . Concentrations of both species were found in a comparatively small band primarily along the 200 m isobath (160 ... Abstract: Germany, in close collaboration with the United States Antarctic Marine Living (U.S ... . AMLR) Program, conducted an investigation of an 7 x 10 nm ‘box’ between 100 and 300 m depth to the west ...
Meeting Document : WG-FSA-02/21 : Autor(es): K.-H. Kock (Germany), C.D. Jones (USA), J. Appel (Germany), G. von Bertouch (CCAMLR Secretariat), D.F. Doolittle (USA), M. la Mesa (Italy), L. Psenichnov (Ukraine), R. Riehl (Germany), T. Romeo (Italy), S. Schöling (Germany) and L. Zane (Italy)
-
OBSERVED RECOVERY OF NOTOTHENIA ROSSII AND FURTHER DECLINE OF GOBIONOTOTHEN GIBBERIFRONS IN SCIENTIFIC CATCHES AT POTTER COVE, SOUTH SHETLAND ISLANDS
in and the disappearance of Gobionotothen gibberifrons from the catches since 2007. Author(s): E ... Abstract: The results of the current monitoring program of fjord fish at Potter Cove, South ... ROSSII AND FURTHER DECLINE OF GOBIONOTOTHEN GIBBERIFRONS IN SCIENTIFIC CATCHES AT POTTER COVE, SOUTH ... Shetland Island are updated, showing a recovery of Notothenia rossii to levels comparable to those observed ...
Meeting Document : WG-FSA-09/31 : Autor(es): E. Marschoff, E. Barrera-Oro, N. Alescio and E. Moreira (Argentina)
-
Summary of notifications of krill fisheries in 2005/06
in the krill fishery in Area 48 in the 2005/06 season. Author(s): Secretariat Title: Summary of ... notifications of krill fisheries in 2005/06 Approval: Approved ... Abstract: This paper summarises the notifications received from Members intending to particpate ...
Meeting Document : WG-EMM-05/6 : Autor(es): Secretariat
-
Stones in toothfish stomachs: an unusual source of geological information from closed regions of Antarctic shelf and slope
stones may be used for geological description of the closed areas of Antarctic shelf and slope. In this ... Abstract: The rocks from stomachs of Dissostichus mawsoni were used as a source of geological ... analyses allow qualitative estimation of geological structure of Antarctic shelf and continental slope in ... information about sea bottom. Authors suggest toothfish picks up stones from the bottom randomly, and these ...
Meeting Document : WG-FSA-07/58 : Autor(es): N.V. Kokorin, D.S. Klucharev and M.A. Sukhoruchenkov (Russia)