Search results
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Towards a strategic framework for assessing uncertainty in ecosystem dynamics models: objectives are sensitive too
candidate feedback management approaches for the Antarctic krill fishery in the southern Drake Passage ... feedback management approaches for the Antarctic krill fishery in the southern Drake Passage and Scotia Sea ...
Meeting Document : WG-EMM-12/20 Rev. 1 : Author(s): S. Hill and J. Matthews (United Kingdom)
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRU 88.2E for the years 2002–03 to 2010–11
it is geographically separated from the Ross Sea fishery and little fishing had been carried out in the other parts ... of Subarea 88.2. Furthermore, it is generally considered more conservative to manage small fisheries ... there has been an increase in fishing in SSRUs 88.2CDFG and it may now be more appropriate to carry out ... it is geographically separated from the Ross Sea fishery and little fishing had been carried out in the other parts ...
Meeting Document : WG-FSA-11/44 : Author(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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Determination of local density of Dissostichus eleginoides in Subarea 48.3 - CCAMLR protocol local depletion experiment Ihn Sung 66 - January 1994
in January 1994 in accordance with CCAMLR Conservation Measure 69/XII and the Experimental Protocol ... stock estimate. The initial population size was estimated to be 2914 fish. Assuming a fishable area ... 1994 in accordance with CCAMLR Conservation Measure 69/XII and the Experimental Protocol circulated ... . The initial population size was estimated to be 2914 fish. Assuming a fishable area of 50 nm2 this represented ...
Meeting Document : WG-FSA-94/22 : Author(s): C. Jones and G. Parkes (United Kingdom)
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Distribution of fish larvae at South Georgia: horizontal, vertical, and temporal distribution and early life history relevant to monitoring year-class strength and recruitment
Paper Title: Distribution of fish larvae at South Georgia: horizontal, vertical, and temporal ... / Description: Four studies on the early life history stages of Antarctic fish at South Georgia are reported ... . In winter and summer fish larvae and early juveniles were present over the continental shelf and abundant ... near the coast, but rare in oceanic waters. During winter in the 265 m deep fiord of Cumberland East ... , and rare or absent in oceanic waters beyond the shelf. 3. DIURNAL VERTICAL DISTRIBUTION OF FISH LARVAE ... - 105 - WG-FSA-87/16 DISTRIBUTION OF FISH LARVAE ... on the early life history stages of Antarctic fish at South Georgia are reported. In winter and summer fish ... , but rare in oceanic waters. During winter in the 265 m deep fiord of Cumberland East Bay the early stages ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 105-141 : Author(s): North, A.W.
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Depth distribution and spawning pattern of Dissostichus eleginoides at South Georgia
eleginoides) were examined using data from approximately 7000 fish sampled by observers from the 1998 fishery ... with an approximately linear relationship existing between depth and fish length. A statistically significant pattern ... to the northeast of Shag Rocks. Few spent fish were found around South Georgia. This concentration of large post ... -spawning fish may have some implications for the management of the fishery. File: 02agnew-etal.pdf ... toothfish Dissostichus eleginoides Smitt, 1898 in the Atlantic sector of the Southern Ocean. Ant. Sci ... (Dissostichus eleginoides) were examined using data from approximately 7000 fish sampled by observers from ... the shelf slope with an approximately linear relationship existing between depth and fish length ... slope to shallower water, and are concentrated to the northeast of Shag Rocks. Few spent fish were ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 19–36 : Author(s): Agnew, D.J., L. Heaps, C. Jones, A. Watson, K. Berkieta and J. Pearce
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Distribution and abundance of Antarctic krill (Euphausia superba) off East Antarctic (30–80°E) in January–March 2006
of the Southern Boundary of the Antarctic Circumpolar Current, particularly in waters to the west which were ... of the Southern Boundary of the Antarctic Circumpolar Current, particularly in waters to the west which were ...
Meeting Document : WG-EMM-07/33 : Author(s): T. Jarvis, N. Kelly, E. van Wijk, S. Kawaguchi and S. Nicol (Australia)
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THE POWER OF ECOSYSTEM MONITORING
, the power to detect the effects of different levels of fishing was examined. 3. The power to detect ... the effects of fishing using either the krill population or a combined predator response index was low (20–40 ... to detect the effects of fishing may be limited if there is a requirement for statistical significance ... to detect the effects of different levels of fishing was examined. 3. The power to detect the effects ...
Meeting Document : WG-EMM-08/P11 : Author(s): K. Reid, J.P. Croxall and E.J. Murphy
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Assessment models for Patagonian toothfish in Division 58.4.4, SRU C on Ob and Lena Banks for the years 1989/90 to 2012/13
Japanese trotline system showed the captures of an adequate number of single-hooked fish in a state ... . The base model assumed the constant year class strength (YCS) and no IUU fishing occurrence in SSRU ... and a quarter of observed IUU fishing occurrence in SSRU C because estimated variability of YCS ... occurrence was conservative. Fits of tag data were a little improved compared to those in the WG-SAM-13/21 ...
Meeting Document : WG-FSA-13/35 : Author(s): K. Taki (Japan)
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An updated descriptive analysis of the Antarctic toothfish (Dissostichus mawsoni) tagging scheme in the Ross Sea for the years 1997/98 to 2004/05
released and 9 recaptured. For the last two years, when tagging has been part of the Conservation Measure ... %) Antarctic toothfish have moved less than 50 km. Consequently, nearly all fish have been recaptured from ... 2001, but is still smaller than the mean size of fish taken in the commercial catch. Larger toothfish ... (>35 kg) are difficult to tag without significant damage to fish, and there is be a trade-off ...
Meeting Document : WG-FSA-05/34 : Author(s): A. Dunn, S.M. Hanchet and K. Maxwell (New Zealand)
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Setting management goals using information from predators
be set for higher trophic levels – such as marine mammals, birds and fish. It briefly explores ... for the Conservation of Antarctic Marine Living Resources (CCAMLR) for taking account of higher trophic levels ... for higher trophic levels – such as marine mammals, birds and fish. It briefly explores the general ... and function. Following this, the precautionary approach developed in the Commission for the Conservation ...
Meeting Document : WG-EMM-07/P7 : Author(s): A. Constable (Australia)