Результаты поиска

1. Cruise Report – Research Project: Demersal finfish distribution, abundance, and their biological characteristics in Statistical Subareas 48.1 (northern area) and 48.2

   ). As a result of nearing the maximum research catch specified in Subarea 48.1 (95% of authorized ... proposed stations completed (n=13). In Subarea 48.2, we were unable to complete the planned number of ... contribute to knowledge regarding bathymetry and distribution of the concentrations of fish and krill in the ... marks registered in the echo sounders. One of the mid-water hauls identified a shoal of icefish (33.6 t ...

   Meeting Document : WG-SAM-18/25 : Автор(ы): Delegation of Chile

2. DISTRIBUTION AND BIOLOGY ON ANTARCTIC KING CRAB PARALOMIS FORMOSA CAUGHT AS BYCATCH IN FISHERY FOR TOOTHFISH (DISSOSTICHUS ELEGINOIDES) ON PATAGONIAN CONTINENTAL SLOPE

   exclusive (marine) economic zones of the foreign states (FAO statistical area 41) in the period from ... data on the distribution of crabs in area of toothfish fishery on the Patagonian continental slope were ... Abstract:  Scientific observation was conducted in the commercial trip on the long-liner " ... ;Simeiz", operating under the Ukrainian flag, in the south-western Atlantic Ocean outside the ...

   Meeting Document : WG-FSA-09/30 : Автор(ы): Yu.V. Korzun (Ukraine)

3. Uncertainty in standard sphere calibrations

   Abstract:  In fisheries acoustics, the standard sphere method of echosounder calibration is most ... variations in the system gains of 0.3, 0.2 and 1.5 dB, respectively. Additionally, system gain values ... commonly used (Johannesson and Mitson, 1983; Simmonds et al., 1984). To investigate the uncertainty in the ... method, a series of experiments were conducted in a deep tank (Demer and Hewitt, 1993). Results indicated ...

   Meeting Document : WG-EMM-95/70 : Автор(ы): Demer, D.A., Hewitt, R.P.

4. Physical and behavioural influences on larval fish retention: contrasting patterns in two Antarctic fishes

   retention of the planktonic stages (eggs and larvae) of marine fish can play a key role in the maintenance ... grounds may contribute to the failure of the N. rossii population to recover from its collapse in the ... consistent feature in C. gunnari was a lack of larval exchange between the proximate South Georgia and Shag ... Abstract:  Waters around South Georgia are amongst the most productive in the Southern Ocean, and ...

   Meeting Document : WG-FSA-12/P10 : Автор(ы): E.F. Young, J. Rock, M.P. Meredith, M. Belchier, E.J. Murphy and G.R. Carvalho

5. Oceanic condition and zooplankton distribution/ abundance in Bransfield Strait during austral summer 1989/1990

   south of Deception Island, and meanders northeastward in the surface layer of the northern strait ... occupying 20 stations, and showed the highest biomass in zooplankton community. The highest number of salpa ... was shown in the northeastern entrance of Bransfield Strait, but low numbers were found along the ... to hydrographic condition, a total of 29 sampling stations was occupied for the CTD casts and ...

   Meeting Document : WG-KRILL-91/14 : Автор(ы): S.M. Kim and M.S. Suk (Korea)

6. Krill aggregation characteristics: spatial distribution patterns from hydroacoustic observations. Polar Biology (in press)

   is consistent with the absence of pronounced hydrographic or topographic concentrating mechanisms in ... scale of I km, suggesting that they could have been in the process of fragmenting or amalgamating ... that these could be useful in the development of fisheries-dependent indices of krill abundance. Polar ... biomass was log-normally distributed with a mean of 0.18 t. Only 3% of the aggregations were heavier than ...

   Meeting Document : WS-KCPUE-89/11 : Автор(ы): D.G.M. Miller and I. Hampton (South Africa)

7. Are penguins and seals in competition for Antarctic krill at South Georgia?

   consumers of Antarctic krill. In recent years the population of fur seals has increased whereas that of ... greater competition for the prey of macaroni penguins leading to the decline in their population. We use a ... 1989 and 2000. Foraging ranges of the two species showed considerable overlap in both years but the ... prevalence of krill in the diet of the two predators differed with less krill in the diet of macaroni ...

   Meeting Document : WG-EMM-01/22 : Автор(ы): K.E. Barlow, I.L. Boyd, J.P. Croxall, I.J. Staniland, K. Reid and A.S. Brierley (United Kingdom)

8. CLIMATICALLY DRIVEN FLUCTUATIONS IN SOUTHERN OCEAN ECOSYSTEMS

   role of physical and biological processes in generating fluctuations in the ecosystem around South ... Georgia in the South Atlantic sector of the Southern Ocean. Anomalies in sea surface temperature (SST) in ... changes in SST, and related fluctuations in winter sea ice extent, affect the recruitment and dispersal of ... °C over the next 100 years could lead to more than a 95% reduction in the biomass and abundance of ...

   Meeting Document : WG-EMM-08/P02 : Автор(ы): E.J. Murphy, P.N. Trathan, J.L. Watkins, K. Reid, M.P. Meredith, J. Forcada, S.E. Thorpe, N.M. Johnston and P. Rothery

9. Aerobic dive limit: how often does it occur in nature?

   constraint in their everyday behaviors. An important component of the physiological capability of any diving ... animal is it’s aerobic dive limit (ADL). The ADL has only been measured in a few species. The goal of ... within the cADL. In contrast, many individuals of both sea lion species exceeded the cADL, some by ... with the dive pattern of individual animals. In both Antarctic Fur Seals and Australian sea lions ...

   Meeting Document : WG-EMM-00/48 : Автор(ы): D.P. Costa, N.J. Gales and M.E. Goebel (USA)

10. Observer coverage in CCAMLR krill fisheries from 2011 to 2015

    Abstract:  The issue of observer coverage in krill fisheries has been the subject of extensive ... past five years comparing the number of days of fishing conducted by vessels in the krill fleet, with ... discussion at the Commission for a number of years, as the krill fishery is the only CCAMLR fishery that does ... not require 100% observer coverage. The Secretariat analysed the level of observer coverage for the ...

    Meeting Document : WG-EMM-16/11 : Автор(ы): CCAMLR Secretariat

Страницы