Search results
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Potential impacts of bottom trawling on benthic communities in Prydz Bay, Antarctica
examined in trawls at 14 of the 22 random stations providing representative samples from different areas in ... greater than 1 at 12 out of the 14 stations and was mostly greater than 10. The results of this study ... Paper Title: Potential impacts of bottom trawling on benthic communities in Prydz Bay, Antarctica ... Abstract / Description: This paper presents data on benthos retrieved in bottom trawls during a survey of ... trawling on benthic communities in this region. The benthos was examined in trawls at 14 of the 22 random ... . The wet-weighed ratio of benthos to finfish in the codend was greater than 1 at 12 out of the 14 ... 30 minutes at 3 knots. The sweeps (25 mm diameter combination rope) were 25 m long. The length of ... bottom. The benthos was examined in the trawls at 14 of the 22 stations (see Table 1, Figure 1 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 403–410 : Author(s): Constable, A.J.
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Editorial
and at-sea operations. A total of 104 working papers were presented at these meetings. This volume ... paper looking at market predictors of the future krill fishery. Publication of this volume of CCAMLR ... Paper Title: Editorial Abstract / Description: This is the 18th volume of CCAMLR Science and the ... contents reflect the important science that supports CCAMLR’s management of the marine living resources of ... operations. A total of 104 working papers were presented at these meetings. This volume con- sists of papers ... at market predictors of the future krill fishery. Publication of this volume of CCAMLR Science ... Science, Vol. 18 (2011): 167 167 This is the 18th volume of CCAMLR Science and the contents reflect the ... important science that sup- ports CCAMLR’s management of the marine living resources of the Southern Ocean ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 167 : Author(s): Editors
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Age, growth and mortality of Patagonian toothfish (Dissostichus eleginoides) caught off Kerguelen
Paper Title: Age, growth and mortality of Patagonian toothfish (Dissostichus eleginoides) caught ... off Kerguelen Abstract / Description: Ages of Patagonian toothfish (Dissostichus eleginoides) caught ... estimated to be –0.6 years and residual variance 2.9. Age distributions of toothfish caught by two vessels ... trawlers and longliners at Kerguelen, and longevity was estimated to be 36 years. Total instantaneous ... data, the proportions of the population at each age were calculated (Fridriksson, 1934; Kimura, 1977 ... Nt is the number of fi sh at age t, and N0 is the number of fi sh in the fi rst year class. Data ... were distributed differently between vessels, and no estimates of gear-specifi c catchability-at-age ... testing (Table 4). Discussion The method of age estimation developed at CQFE was applied to process ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 29–41 : Author(s): Ashford, J., G. Duhamel, C. Jones and S. Bobko
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Surveys of breeding penguins and other seabirds in the South Shetland Islands, Antarctica, January-February 1987*
available nesting habitat in 1987. For the same reason, at least in part, other species of breeding seabirds ... Paper Title: Surveys of breeding penguins and other seabirds in the South Shetland Islands ... , Antarctica, January-February 1987* Abstract / Description: Surveys conducted as part of the Antarctic Marine ... Living Resources Program in 1987 provided data on the number, size, and location of penguin and Antarctic ... complete coverage of available nesting habitat in 1987. For the same reason, at least in part, other ... - 449 - SC-CAMLR-VI/BG/19 (WG-CEMP-87/6) SURVEYS OF ... * W.D. Shuford and L.B. Spear1 (USA) Abstract Surveys conducted as part of the Antarctic Marine ... Living Resources Program in 1987 provided data on the number, size, and location of penguin and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 449-451 : Author(s): Shuford, W.D. and L.B. Spear
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On the intensity of sampling krill trawl catches
). In the process of receiving the necessary consensus for this endorsement, SC-CAMLR requested that (a) studies ... be discerned (e.g., length-with-age). At present, and in the interests of both statistical rigour and ... stages; • for most purposes a minimum sample size of at least 100 animals/trawl is necessary to obtain ... Paper Title: On the intensity of sampling krill trawl catches Abstract / Description: This paper ... uses actual krill length-frequency data in an attempt to address the problem of the determination of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 29–48 : Author(s): Miller, D.G.M.
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The survivorship of rays discarded from the South Georgia longline fishery
the line at the sea surface, so as to maximise their chances of survival. Results from this experiment ... Paper Title: The survivorship of rays discarded from the South Georgia longline fishery Abstract ... / Description: Post-haulage survival experiments were conducted on 95 Raja sp. anon. cut off longlines at the ... season in Subarea 48.3. Capture depth had a consistently significant influence on the mortality of skates ... be cut from the line at the sea surface, so as to maximise their chances of survival. Results from ... level), making use of the pres- ence of scientifi c observers on board commercial vessels fi shing at ... only one skate at a time would be placed in a tank, with a maximum of eight skates being tanked at ... any one time. At the time of placement of each skate into the experimental tank, the following data ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 155–164 : Author(s): Endicott, M. and D.J. Agnew
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Age determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula subarea (Subarea 48.1)
Paper Title: Age determination of Notothenia gibberifrons from the South Shetland Islands ... Notothenia gibberifrons specimens collected at two localities near the South Shetland Islands (Low I. and ... Potter Cove, 25 De Mayo/King George I.). Samples consisted of small and medium sized fish (total length ... scale readings gave a result of one year more. This could arise from the difficulty in differentiating ... workshop held in Moscow in July 1986, and at the annual Scientific Committee meetings. As a result of the ... * were obtained at two localities of South Shetland Is. (Figure 1) according to following detail ... of the species. Our samples at Low I. were taken offshore, while Potter Cove is a fjord (shallow ... 10 years and from 5 to 13 years, respectively. Comparison of mean length at certain age groups ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 143-160 : Author(s): Barrera-Oro, E.
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Sensitivity investigation of the SDWBA Antarctic krill target strength model to fatness, material contrast and orientation
approximation model is recognised as stateoftheart in predicting acoustic target strength (TS) from ... is re cognised as stateoftheart in predicting TS from fluidlike zooplankton (Stanton and Chu, 2000 ... and the orientation at the time and location of the actual survey. Moreover, a number of incongruities ... Paper Title: Sensitivity investigation of the SDWBA Antarctic krill target strength model to ... model is recognised as state-of-the-art in predicting acoustic target strength (TS) from fluid-like ... TS of Antarctic krill (Euphausia superba) for use in the acoustic echo-integration method. In this ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 97–122 : Author(s): Calise, L. and G. Skaret
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A hypothetical life cycle for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region
extended into Subarea 88.2 (Hanchet et al., 2007) and a research trip was carried out into Subarea 88.3 ... Sea region Abstract / Description: Aspects of the reproduction, size distribution and movements of ... location and timing of spawning and the probable early life-history characteristics of toothfish, the drift ... of eggs and larvae over a 6–24 month period were investigated using an oceanic circulation model ... locations of toothfish larvae after an 18–24 month period were moderately consistent with the distribution ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 35–53 : Author(s): Hanchet, S.M., G.J. Rickard, J.M. Fenaughty, A. Dunn and M.J. Williams
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Composition and characteristics of ichthyofauna in pelagic waters of South Georgia (Subarea 48.3)
ichthyocenosis in the subarea consisted of pelagic fishes (mainly Myctophidae), distributed at a depth range of ... Paper Title: Composition and characteristics of ichthyofauna in pelagic waters of South Georgia ... (Subarea 48.3) Abstract / Description: This paper presents the results of randomly stratified pelagic ... trawl census surveys conducted in Subarea 48.3. From 1984 to 1990 daily sampling stations aimed at ... sampling stations aimed at studying the vertical migrations of some of the most abundant species were ... ), distributed at a depth range of 250 to 300 m, as well as demersal fishes in the pelagic stage of their life ... i t u t e of Mar ine Fisheries a n d Oceanography (At lan tNIRO) car r ied o u t six pe ... fishing zone (70-100 m) to the 500-metre isobath both during the day and at night. The number of hauls ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 125–164 : Author(s): Frolkina, G.A., M.P. Konstantinova and I.A Trunov