Search results
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Evaluation of the results of trawl selectivity experiments by Poland, Spain and USSR in 1978/79, 1981/82 and 1986/87
Paper Title: Evaluation of the results of trawl selectivity experiments by Poland, Spain and USSR ... in 1978/79, 1981/82 and 1986/87 Abstract / Description: Trawl selectivity for several species of ... different characteristics of experimental codends, length frequency distribution of stocks sampled, catch ... rates and catch composition. Details of these data were analyzed and minimum mesh sizes for several ... length at 50% maturity for the South Georgia area of 46 cm for males and 47.4 cm for females (Kock, 1981 ... values of Lso for South Georgia are well below the length at 50% maturity of 31.7 cm (Boronin and Altman ... length at 50% maturity for the South Georgia area of 23.1 cm (Kock, Duhamel and Hureau, 1985), and well ... at first capture of 4 years (Le. around 32 cm), which was proposed as the optimum under conditions ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 163–196 : Author(s): Slosarczyk, W., E. Balguerias, K. Shust and S. Iglesias
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Utilising data from ecosystem monitoring for managing fisheries: development of statistical summaries of indices arising from the CCAMLR Ecosystem Monitoring Program
QaHHbIMH. nepece~e~ l l e OCPi X HMXHHM CTOIIGQOM rOBOpAT 0 TOM, YTO H M X H H ~ ~ noeepki~enb~brii ... Paper Title: Utilising data from ecosystem monitoring for managing fisheries: development of ... statistical summaries of indices arising from the CCAMLR Ecosystem Monitoring Program Abstract / Description ... : A potential method is presented for combining data collected as part of the CCAMLR ecosystem ... monitoring program (CEMP) into a single index for each of predator, prey and environmental parameters. The ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 101–117 : Author(s): de la Mare, W.K. and A.J. Constable
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Revised estimates of the area of the South Georgia and Shag Rocks shelf (CCAMLR Subarea 48.3)
) and to enable appropri- ate trawl survey stratification. The nautical charts used to obtain these estimates ... Paper Title: Revised estimates of the area of the South Georgia and Shag Rocks shelf (CCAMLR ... variety of primary sources including multi-beam swath bathymetry. Sea floor area (km 2 <500 m depth ... , the reliability of existing sea floor area estimates was found to vary spatially and between different ... should be used for future assessments and for assisting with the stratification of surveys. File ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 167–175 : Author(s): Belchier, M. and P. Fretwell
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Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by acoustic surveys
Paper Title: Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by ... acoustic surveys Abstract / Description: Acoustic surveys carried out in the summer and autumn of 1987 ... -1989 estimated the biomass of myctophids in the Atlantic sector of the Southern Ocean between 48° and ... 56° and from 8° to 48°W to be approximately 1.7x10 6 tonnes. Over the greater part of the surveyed ... ). C1 was calculated from results of calibrations to standard target TSst = -33.6 dB, completed at the ... beginning and at the end of each survey and 6.9 m2/square miles in the second. For estimation of the ... more dispersed at night than in the daytime. Over 90% (by weight) of control catches consisted of ... Press. pp. 320-337. MAMYLOV, V.S. 1988. Results of "in situ, target strength measurements at 38kHz ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 417–431 : Author(s): Filin, A.A., K.V. Gorchinsky and V.M. Kiseleva
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Midwater trawl catchability as an aspect of a quantitative assessment of krill biomass conducted using a trawl census survey
Paper Title: Midwater trawl catchability as an aspect of a quantitative assessment of krill ... variable which depends on both the behavioural and distributional characteristics of the target species and ... trawl parameters. Reliability of biomass assessments will improve with better knowledge of trawl ... catchability and krill distribution patterns. A comparative analysis of trawl catchability for commercial ... , specific biomass (density) of krill in the catch is expressed in g/m2 or g/m3 at the point of trawling ... each haul. At some trawl stations the coefficient of variation of catchability (Kp) reached 3.50. Mean ... OF A QUANTIT ATIVE ASSESSMENT OF KRILL BIOMASS CONDUCTED USING A TRAWL CENSUS SURVEY S.M ... distributional characteristics of the target species and trawl parameters. Reliability of biomass assessments ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 257–272 : Author(s): Kasatkina, S.M.
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Annual changes in species composition and abundance of myctophid fish in the north of South Georgia (Subarea 48.3), Antarctica, during austral winters from 2002 to 2008
Paper Title: Annual changes in species composition and abundance of myctophid fish in the north ... of South Georgia (Subarea 48.3), Antarctica, during austral winters from 2002 to 2008 Abstract ... / Description: Species composition and abundance of myctophid fish were analysed using the fish by-catch ... north and northwest of South Georgia, Antarctica, during austral winters from 2002 to 2008. A total of ... opening of ca. 30 m was used throughout the survey. Inner meshes of the net were ca. 15 mm at the codend ... the occurrence of P. choriodon from the diet of Antarctic fur seals at South Georgia in austral ... 1: O cc ur re nc e of m yc to ph id s pe ci es in b y- ca tc h. R at e of o ... . 1997. Diet of the king penguin Aptenodytes patagonicus during three summers at South Georgia. Ibis ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 155–163 : Author(s): Iwami, T., M. Naganobu, K. Taki and M. Kiyota
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Analysis and modelling of the Soviet Southern Ocean krill fleet, II: Estimating the number of concentrations and analytical justification for search data
for the entire fishing period of14 to 30 days.) 290 9. A MORE DETAILED ANALYSIS OF THE DATA FROM RV MYS ... Paper Title: Analysis and modelling of the Soviet Southern Ocean krill fleet, II: Estimating the ... number of concentrations and analytical justification for search data Abstract / Description: In this ... of concentrations of krill (Butterworth, 1988; Mangel, 1988) in a given region of the Southern Ocean ... make accurate inferences. In the appendix, a method for correcting for the bias in the detection of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 283–322 : Author(s): Mangel, M.
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Catch per unit effort (CPUE) data from the early years of commercail krill fishing operations in the Atlantic sector of the Antarctic
Paper Title: Catch per unit effort (CPUE) data from the early years of commercail krill fishing ... operations in the Atlantic sector of the Antarctic Abstract / Description: Catch per unit effort (CPUE) data ... differ between subareas, years and shelf/oceanic regions. Obviously, a consistent pattern of CPUE values ... 1980/81, whereas the lowest CPUE occurred in Subarea 48.3 in 1977/78. The validity of the CPUE index is ... difference at all between the CPUEs of the various subareas. There is obviously no tendency for any subarea ... . Reproduction performance of seabirds and seals at South Georgia and Signy Island, South Orkney Islands, 1976 ... EFFORT (CPUE) DATA FROM THE EARLY YEARS OF COMMERCIAL KRILL FISHING OPERATIONS IN THE ATLANTIC SECTOR ... OF THE ANTARCTIC V. Siege1 and U. Damm Bundesforschungsanstalt fur Fischerei Institut fur ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 31–50 : Author(s): Siegel, V., V. Sushin and U. Damm
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Size and density of krill layers fished by a Japanese trawler in the waters north of Livingston Island in January 1988
Paper Title: Size and density of krill layers fished by a Japanese trawler in the waters north of ... Livingston Island in January 1988 Abstract / Description: The size and density of fishable krill layers in ... the northern waters of Livingston Island were determined during the co-operative survey carried out by ... RV Kaiyo Maru and a Japanese trawler. The mean values of layer length, thickness and surface density ... aggregation was measured at its densest part every five minutes on the echogram. The density of each layer ... not fish the deeper parts of the layers in at least 16 out of 34 hauls. Catch per tow ranged from ... of the concentration proved to be more than 52 km (from 60 0 to 61 0 W at 62°S). REFERENCES ... WG-KRILL-89/6 SIZE AND DENSITY OF KRILL LAYERS FISHED ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 339–345 : Author(s): Endo, Y. and Y. Shimadzu
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Preliminary results of research activities of RV Evrika in the Scotia Sea in January-March 1988
Paper Title: Preliminary results of research activities of RV Evrika in the Scotia Sea in January ... -March 1988 Abstract / Description: In 1987/88 a multi-disciplinary survey was conducted of the Scotia ... South Georgia in particular were surveyed twice. Research activities are part of the program implemented ... in areas of the Atlantic Sector of the Southern Ocean identified for monitoring by CCAMLR. During the ... SC-CAMLR-VII/8G/15 PRELIMINARY RESULTS OF RESEARCH ... ACTIVITIES OF RV EVRIKA IN THE SCOTIA SEA IN JANUARY-MARCH 1988 L.1. Maklygin , A.S. Fedorov, V.N. Shnar ... -disciplinary survey was conducted of the Scotia Sea and adjacent waters, accompanied by regular trawlings with ... activities are part of the program implemented in areas of the Atlantic Sector of the Southern Ocean ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 215-229 : Author(s): Maklygin, L.I., A.S. Fedorov, V.N. Shnar, Yu.A. Shulyakovsky, I.V. Krasovsky, Yu.D. Shuvaev and A.V. Kromsky