Search results
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Cruise Report – Research Project: Demersal finfish distribution, abundance, and their biological characteristics in Statistical Subareas 48.1 (northern area) and 48.2
stratified sampling design between 50 and 500 m on shelf areas of Subarea 48.1 (Elephant Island) and Subarea ... , 2012) and on shelf areas of the South Orkney Islands according to a subsample of stations sampled by ... Program, Southwest Fisheries Science Center, National Marine Fisheries Service. A total of 36 hauls were ... caught with a total volume of 19,112.28 kg. The main species extracted with this gear corresponded to ...
Meeting Document : WG-SAM-18/25 : Author(s): Delegation of Chile
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Some data on Antarctic toothfish Dissostichus mawsoni reproduction in the Ross Sea (Subarea 88.1) in the period from December 2002 to March 2003
Abstract: On the grounds of data analysis collected by one of the authors – Prutko V.G. in ... December, 2002-March, 2003 in Subarea 88.1, we determine Antarctic toothfish body length at maturity of 50 ... % females-128-130 cm, males-117-120 cm. To estimate maturity stages of post-spawning individuals we suggest ... using double designation, and to control visual estimation of maturity stages number of different ...
Meeting Document : WG-FSA-03/49 : Author(s): V.G. Prutko and L.A. Lisovenko (Ukraine)
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Krill biomass and distribution variability in Subarea 48.3 in June 1991
Abstract: Temporal and spatial variability of krill distribution features was investigated at the ... micropolygon of 8 x 6 miles, where eight consecutive hydroacoustic stations were carried out. Krill ... aggregations occurred as fields of small swarms of spatial distribution features (size and density of swarms ... , swarm field density, number of swarms per one mile) varied considerably from tack to tack within each ...
Meeting Document : WG-CEMP-92/35 : Author(s): S.M. Kasatkina, E.I. Timokhin, P.P. Fedulov and K.E. Shulgovskiy (Russian Federation)
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Squalus acanthias – a new species in the Antarctic ichthyofauna (Division 58.5.1)
Abstract: Four species of shark have been known to date to occur in the sub-Antarctic waters ... : Lamna nasus, Somniosus microcephalus, Etmopterus lucifer, E. granulosus. A specimen of Squalus acanthias ... was captured in February 1995 on the shelf of the Kerguelen Islands from the depth of about 195 m and ... duly described. Squalus acanthias is believed to be one of the most widespread shark species in the ...
Meeting Document : WG-FSA-96/14 : Author(s): Pshenichnov, L.K.
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CALIBRATION ERROR IN THE AMLR PLANKTON TIME SERIES
Abstract: Analysis of the time series of the volume of water filtered during tows using a 1.8 m ... Isaac-Kidd Midwater Trawl (IKMT) from 1992 to 2007 showed a marked decline (~35%) in the volume of water ... filtered beginning in 2000. Analysis of tow time duration, reported ship speed during tows, and mean number ... of rotor counts from the flow meters showed no significant trends. The discrepancy in volume is ...
Meeting Document : WG-EMM-08/19 : Author(s): C. Reiss (USA)
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Progress report on the Korean exploratory longline fishery for Dissostichus spp. in Division 58.4.1 in 2015/16
scientific researches. The total catch of D. mawsoni was 227,220 kg with 6,642 individuals. The CPUE of D ... . mawsoni recorded 0.31 kg/hook. 1,138 individuals of D. mawsoni and 5 individuals of D. eleginoides were ... tagged and released and additionally satellite archival tags were attached to 5 individuals of D. mawsoni ... . In Division 58.4.1, tagging rate and tag overlap statistics of D. mawsoni were 5.0 and 82 ...
Meeting Document : WG-SAM-16/28 : Author(s): Delegation of the Republic of Korea
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Oceanic debris observations in the southern ocean whale sanctuary, from Antarctic Peninsula to the Ross Sea: December 1994 to March 1995
Abstract: Observations of natural and man-made floating megalitter, macrolitter and mesolitter in ... the Pacific section of the Southern Ocean Whale Sanctuary from December 1994 to March 1995 are ... start and finish of the expedition, especially near the Antarctic Convergence south of the Tasman Sea ... . Man-made megalitter was nowhere common, but was seen mostly near and to the west of the Antarctic ...
Meeting Document : SC-CAMLR-XVI/BG/29 : Author(s): ASOC Observer
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Reproduction in Antarctic notothenioid fish - a review
although spawning is likely to take place annually. However, part of the populations of Champsocephalus ... gunnari in the Atlantic Ocean sector do not spawn each year. Gonadosomatic index (GSI) of females is 15–40 ... % at spawning. Apart from a few nototheniid species the GSI of males is much less and typi6dlly only 15 ... –20% of that of females. Length at first spawning may be from 55% of Lmax onwards, but in many species ...
Meeting Document : SC-CAMLR-X/BG/12 : Author(s): Delegation of Germany
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Detecting trends in the krill fishery
Abstract: The development of the krill fishery can be monitored and predicted using a number of ... different sources of information. Information on current catches and scientific information on the krill ... stocks is of limited value in plotting trends in the fishery at its current level. Predictions by Members ... of their future plans are also of limited use because they ultimately depend on the underlying ...
Meeting Document : WG-EMM-02/25 : Author(s): S. Nicol and J. Foster (Australia)
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Revised input parameters and implications for the Antarctic toothfish (Dissostichus mawsoni) stock assessment in Subareas 88.1 and 88.2
Abstract: In this paper, we address a number of aspects of the model inputs and parameters of the ... runs that investigate the sensitivity of the 2006 stock assessment to changes in these model inputs and ... parameters. Tree-regression methods were used to investigate the areal structure of the length distribution ... of Antarctic toothfish. While tree-regressions suggested strong evidence of a high degree of small ...
Meeting Document : WG-SAM-07/6 : Author(s): A. Dunn and S.M. Hanchet (New Zealand)