Search results
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Fishery Report 2015: Champsocephalus gunnari Heard Island (Division 58.5.2)
abundant at depths of less than 350 m in the waters surrounding Heard Island. In this area they grow to a ... maximum length of around 45 cm and a maximum age of 6 years. Size at first maturity for females is 26.5 ... (n) in each year at the top of each pane. 3 7. Only catch-weighted length-frequency data ... shallower than 500 m, and a non-contiguous area at Shell Bank to the northeast of the islands. The Heard ...
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Fish distribution and biomass in the Heard Island zone (Division 58.5.2)
/ Description: Division 58.5.2 encompasses the southern part of the Kerguelen plateau, and contains Heard ... . In order to assess the potential of this area for commercial fishing, and to obtain some preliminary ... distribution, abundance and biology of the most important species, covering a number of years and seasons. Five ... species were found to be abundant. There were two consistent areas of aggregation of Champsocephalus ... and size of the net mouth, temperature and depth at the headline and confirmation that the net was ... were chosen at random by computer, with the minimum distance between sites of 5 n miles. For each ... stratum, GR500, at 300-500 m depth was established around GR300 to allow for the presence of C. gunnari ... at this depth; * the 750 stratum was not sampled because of lack of time and the low densities of ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 1–20 : Author(s): Williams, R. and W.K. de la Mare
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Fishery report: Champsocephalus gunnari Heard Island (Division 58.5.2)
.......................................................................... 6 Proportion of biomass-at-age ....................................................... 6 Stock ... procedure. Population structure 8. The distribution of densities-at-age was derived using the CMIX ... range included 150–420 mm Means (no VBGF) (at time of survey) Age 1: 176 mm (fitted) Age 3: 290 mm ... analyses of cohort structure that indicated the population is dominated by a single year class at present ...
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Fishery Report 2015: Dissostichus eleginoides Kerguelen Islands French EEZ (Division 58.5.1)
eliminated inside the French EEZ at Kerguelen. There were no official reports of IUU fishing in the French ... ). Table 1: Catch history of Dissostichus eleginoides in the French EEZ at Kerguelen Island (Division ... caught in the French EEZ at the Kerguelen Islands in Division 58.5.1 from 2006 to 2015. The number of ... . Tagging 12. Within the French EEZ, vessels are required to tag and release toothfish at a rate of 1 ...
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Fishery Report 2014: Dissostichus eleginoides Kerguelen Islands French EEZ (Division 58.5.1)
inside the French EEZ at Kerguelen. There were no official reports of IUU fishing in the French EEZ in ... : Catch history of Dissostichus eleginoides in the French EEZ at Kerguelen Island (Division 58.5.1) and ... (%) Figure 1: Annual length-frequency distributions of Dissostichus eleginoides caught in the French EEZ at ... .) Tagging 12. Within the French EEZ, vessels are required to tag and release toothfish at a rate of one ...
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Refinements to the strategy for managing depleted fish stocks based on CCAMLR objectives
objectives Abstract / Description: A method of calculating fishing mortalities which will allow depleted ... decades is illustrated. These fishing mortalities are based on probabilistic descriptions of the future ... states of a depleted stock, and take into account uncertainty in assessments. Sample calculations show ... that applying a policy of F 0.1 will not always lead to stock recovery in two to three decades, and ... probability of 0.5 that the stock is at or above GNAI (or other target level) in 20 years; (ill) the ... of the state of the stock at a given time in the future could be done with population projections ... distribution at year 20 is the sum of the projected distributions, for the set of current stock states in the ... examined, one with the population at 30% of average pre-exploitation biomass, and the other at 5%. GNAI is ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 467–475 : Author(s): de la Mare, W.K. and A. Constable
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Fishery Report 2016: Dissostichus eleginoides Crozet Island French EEZ (Subarea 58.6)
the French EEZ at the Kerguelen Islands (Division 58.5.1) is closed. A high level of catch ... 2 Table 1: Catch history of Dissostichus eleginoides in the French EEZ at Crozet Islands (Subarea ... toothfish at a rate of 1 fish per tonne of green weight caught throughout the season. 15. Tagging ... updated stock assessment of D. eleginoides at Crozet Islands (Subarea 58.6 inside the French EEZ ...
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Fishery Report 2016: Closed fishery for Dissostichus spp. in Divisions 58.4.4a and 58.4.4b
and 35 tonnes in research block 5844b_2. It further requested that research activities be coordinated ...
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Champsocephalus gunnari South Georgia (Subarea 48.3)
agreed at WG-FSA-03, estimates of standing stock were obtained using the bootstrap procedure, with the ... 48.3 459 Population structure 5.221 The distribution of densities-at-age was derived using the ... age 1+ fish. Table 5.49: Calculation of the proportion of biomass-at-age derived for the truncated ... Group noted several discrepancies between the length-frequency distributions of C. gunnari sampled at ...
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Fishery Report: Champsocephalus gunnari South Georgia (Subarea 48.3)
the September 2007 survey 2+ and 3+ fish were abundant at South Georgia, with 3+ fish (of the same ... agreed at WG-FSA-03, estimates of standing stock were obtained using a bootstrap on calculated icefish ... . Population structure 9. The distribution of densities-at-age was derived using the CMIX program. Initial ... taken this season. Initial age structure 12. The proportion of density-at-age was derived from the ...
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