Resultados de la búsqueda
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Use of indices of predator status and performance in CCAMLR fishery management
Paper Title: Use of indices of predator status and performance in CCAMLR fishery management ... Abstract / Description: This paper investigates how data on, or related to, reproductive performance of ... seabird and seal predators,collected as part of the CCAMLR Ecosystem Monitoring Program (CEMP) could be ... used in the management, by CCAMLR, of commercial fisheries. It reviews reasons why it is important for ... relevance and of appropriate accuracy and detectability (a) foraging trip duration; (b) offspring growth ... SC-CAM LR-Vlll/9 USE OF INDICES OF PREDATOR STATUS AND ... related to, reproductive performance of seabird and seal predators, collected as part of the CCAMLR ... Ecosystem Monitoring Program (CEMP) could be used in the management, by CCAMLR, of commercial fisheries. lt ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 353–365 : Autor(es): Croxall, J.P.
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Evidence to support the annual formation of growth zones in otoliths of Antarctic toothfish (Dissostichus mawsoni)
Paper Title: Evidence to support the annual formation of growth zones in otoliths of Antarctic ... annually in the otoliths of this species. However, no evidence to validate this assumption has previously ... translucent zone is formed annually in otoliths of juvenile D. mawsoni. Mean fish lengths at ages 0.5, 1.5 ... estimates agree with growth curves calculated previously from a sample of data that was large but lacked any ... released since 1972 (DeVries and Eastman, 1998). Some of these tagged fi sh were also injected with ... (2003): 125–138 125 EVIDENCE TO SUPPORT THE ANNUAL FORMATION OF GROWTH ZONES IN OTOLITHS OF ... ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) P.L. Horn National Institute of Water and Atmospheric Research ... -901, Kilbirnie Wellington, New Zealand A.L. DeVries Department of Animal Biology University of ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 125–138 : Autor(es): Horn, P.L., C.P. Sutton and A.L. DeVries
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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 ... 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 ... Seefischerei Palmaille 9, D-22767 Hamburg, Germany V.A. Sushin Atlantic Research Institute of Marine ... consistent pattern of CPUE values does not occur over time for the entire area. High average CPUE were ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 31–50 : Autor(es): Siegel, V., V. Sushin and U. Damm
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Revised estimates of the area of the South Georgia and Shag Rocks shelf (CCAMLR Subarea 48.3)
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 ... estimates of the aRea of the south GeoRGia and shaG Rocks shelf (ccamlR subaRea 48.3) M. Belchier and P ... – markb@bas.ac.uk Abstract A new South Georgia Bathymetric Dataset (SGDB) was compiled from a variety of ... reliability of existing sea floor area estimates was found to vary spatially and between different depth ... used for future assessments and for assisting with the stratification of surveys. Résumé Un nouveau ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 167–175 : Autor(es): Belchier, M. and P. Fretwell
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A preliminary assessment of age and growth of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica
Paper Title: A preliminary assessment of age and growth of Antarctic silverfish (Pleuragramma ... . Standard length and weight were well correlated (r 2 = 0.99). Counts of growth zones in 304 thin-sectioned ... than males, but none of the estimated von Bertalanffy parameters were statistically significantly ... about two-thirds of the sampled fish could not be sexed. Precision estimates and age bias plots ... was applied to account for shrink- age in length and weight loss as a consequence of longterm ... • individuals of the species seldom reach their asymptotic length, and are still growing when they die of old ... DeWitt, H.H. and J.C. Tyler. 1960. Fishes of the Stanford Antarctic Biological Research Pro- gram, 1958 ... about 98% by number of the total ichthyoplankton on the Weddell Sea continen- tal shelf (Keller, 1983 ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 75–86 : Autor(es): Sutton, C.P. and P.L. Horn
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Observations of fishing operations on a krill trawler and distributional behaviour of krill off Wilkes Land during the 1985/86 season
Paper Title: Observations of fishing operations on a krill trawler and distributional behaviour ... of krill off Wilkes Land during the 1985/86 season Abstract / Description: Japanese krill fishing ... of fished swarms ranged from 100 m to 10 km with different distributions occurring in different ... a good index to measure abundance of a concentration. Comparison of such an index across time and ... (Figure 3). The spatial scale of this good concentration was 100-300 km from east to west and 30-50 km ... - 335 - SC-CAMLR-VI/BG/35 OBSERVATIONS OF FISHING ... OPERATIONS ON A KRILL TRAWLER AND DISTRIBUTIONAL BEHAVIOUR OF KRILL OFF WILKES LAND DURING THE 1985/86 ... swarms, while sonar was used to judge the towing direction. The size of fished swarms ranged from 100 m ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 335-368 : Autor(es): Ichii, T.
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A review of the effectiveness of streamer lines as a seabird by-catch mitigation technique in longline fisheries and CCAMLR streamer line requirements
Paper Title: A review of the effectiveness of streamer lines as a seabird by-catch mitigation ... light of a review of existing literature and available data on the effectiveness of single and paired ... attack or dive rate of multiple southern hemisphere seabird species or foraging guilds as a function of ... : requiring that the streamer line be deployed over the hookline within 100 m of the stern; increasing the ... (2004): 189–201 189 A REVIEW OF THE EFFECTIVENESS OF STREAMER LINES AS A SEABIRD BY-CATCH MITIGATION ... Program University of Washington Box 355020, Seattle, WA 98195, USA Email – emelvin@u.washington.edu B ... requirements (Conservation Measure 25-02 (2002), formerly Conservation Measure 29/XIX) in light of a review of ... existing literature and available data on the effectiveness of single and paired (or multiple) streamer ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 189–201 : Autor(es): Melvin, E.F., B. Sullivan, G. Robertson and B. Wienecke
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Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?
Paper Title: Is current management of the Antarctic krill fishery in the Atlantic sector of the ... Southern Ocean precautionary? Abstract / Description: This paper explains the management of the Antarctic ... krill (Euphausia superba) fishery in the Atlantic sector of the Southern Ocean, and current knowledge ... about the state of the regional krill stock. In this region, krill fishing is permitted in an area of ... Science, Vol. 23 (2016): 31–51 31 Is current management of the Antarctic krill fishery in the Atlantic ... sector of the Southern Ocean precautionary? S.L. Hill* British Antarctic Survey High Cross, Madingley ... Road Cambridge CB3 0ET United Kingdom B.A. Krafft, O.R. Godø and G. Skaret Institute of Marine ... management of the Antarctic krill (Euphausia superba) fishery in the Atlantic sector of the Southern Ocean ...
Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 31–51 : Autor(es): Hill, S.L., A. Atkinson, C. Darby, S. Fielding, B.A. Krafft, O.R. Godø, G. Skaret, P.N. Trathan and J.L. Watkins
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Possible effects of different levels of krill fishing on predators – some initial modelling attempts
Paper Title: Possible effects of different levels of krill fishing on predators – some initial ... suggested by the Joint Meeting of CCAMLR's Working Group on Krill (WG-Krill) and Working Group for the ... CCAMLR Ecosystem Monitoring Program (WG-CEMP) in 1992, in order to investigate the possible effects of ... krill fishing on krill predators. First, estimates are made of the parameters of predator survival rates ... population, but the reverse effect of different levels of loss of krill to natural mortality because of ... OF DIFFERENT LEVELS OF KRILL FISHING ON PREDATORS - SOME INITIAL MODELLING ATTEMPTS D. S ... . Butterworth Department of Applied Mathematics, University of Cape Town Rondebosch 7700. South Africa R.B ... . Thonnson Department of Zoology, University of Cape Town Rondebosch 7700, South Africa Abstract An ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 79–97 : Autor(es): Butterworth, D.S. and R.B. Thomson
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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 ... was found to be spread along the Antarctic Frontal Zone east of South Georgia. The whole area was ... WG-FSA-90/19 BIOMASS OF MYCTOPHIDS IN THE ATLANTIC ... SECTOR OF THE SOUTHERN OCEAN AS ESTIMATED BY ACOUSTIC SURVEYS A.A. Filin, K.V. Gorchinsky and V.M ... . Kiseleva* Abstract Acoustic surveys carried out in the summer and autumn of 19g7 -19g9 estimated the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 417–431 : Autor(es): Filin, A.A., K.V. Gorchinsky and V.M. Kiseleva