Search results
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Preliminary assessment of the potential for the proposed bottom fishing activities to have significant adverse impact on vulnerable marine ecosystems
Dissostichus spp. in Subareas 88.1 and 88.2 in 2010/11. This notification included a preliminary assessment of ... Vulnerable Marine Ecosystems (VMEs), as required by CCAMLR Conservation Measure 22-06. In an accompanying ... that the data enclosed will be available for discussion by WG-EMM in their consideration of VME impacts ... (in addition to normal consideration by WG-FSA) should that be desired. The enclosed document was ...
Meeting Document : WG-EMM-10/33 : Author(s): United Kingdom
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Estimation of the green weight of krill caught
Abstract: Vessels operating in the krill fishery in CCAMLR’s Convention Area are required to ... -EMM-14. Estimates of green weight and parameter values are reported in each vessel’s haul-by-haul ... catch and effort data (C1 data). Vessels fishing in 2014/15 used five methods for the direct estimation ... scale and meal conversion. This paper provides a preliminary summary of the data reported so far in 2014 ...
Meeting Document : WG-EMM-15/19 : Author(s): CCAMLR Secretariat
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EXPLORING THE ROBUSTNESS OF THE CURRENT TOOTHFISH SPP. HARVEST CONTROL RULES AND POTENTIAL EXPLOITATION RATE-BASED ALTERNATIVES
Abstract: In this paper a simple biomass dynamic population model is used as a paradigm for the ... dynamics of toothfish spp. in the CCAMLR area. This model underpins a management strategy evaluation ... framework where the process of stock assessment, TAC calculation and implementation and potential changes in ... current harvest control rule employed for assessed stocks of toothfish spp. in the convention area is ...
Meeting Document : WG-SAM-09/14 : Author(s): R. Hillary (United Kingdom)
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Manual: estimating the age of Patagonian toothfish (Dissostichus eleginoides) using transverse cross-sections of otoliths
noted in the growth parameters being used for assessments of toothfish. To assess whether these ... nations participated in a Workshop in 2001 at Old Dominion Unversity with the primary aim of seeking ... conformity in estimating age of Patagonian toothfish (Dissostichus eleginoides). Arising from the workshop ... in reading otoliths; quality assurance and control; and the use of reference sets to monitor ...
Meeting Document : WG-FSA-10/15 : Author(s): K. Underkoffler, N. Ramanna and J. Ashford (USA)
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Fish Heaven: a Monte Carlo, spatially explicit single species fishery model for the testing of parameter estimation methods
object oriented framework to allow for the possible extension in a number of directions. In particular it ... desired) as well as demographic stochasticity. It is a spatially explicit model in which fish will tend to ... complete it is still seen as a piece of software in development. Currently the software is designed to ... package, reading in the output files of Fish Heaven. A number of extensions are planned for the software ...
Meeting Document : WG-FSA-00/36 : Author(s): I. Ball and A. Constable (Australia)
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First global census of the Adélie penguin
% larger (3.79 million breeding pairs) than the last estimate in 1993. We provide the first abundance ... colonizations. These recent colonizations represent approximately 5% of the increase in known breeding ... territories. Additionally, we report on thirteen colonies not found in the survey, including eight we conclude ... changes in abundance and distribution, and finds that Adélie Penguin declines on the Antarctic Peninsula ...
Meeting Document : WG-EMM-14/P05 : Author(s): H.J. Lynch and M.A. LaRue
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A TALE OF TWO ISLANDS: CONTRASTING FORTUNES FOR SUBANTARCTIC SKUAS AT THE PRINCE EDWARD ISLANDS
at the Prince Edward Islands was conducted during December 2008, repeating a previous survey in ... twice as many non-breeding birds. Burrowing petrels comprised 96% of prey in skua middens at Prince ... in 2008, whereas the number of skua nests on Marion Island was barely half that counted in 2001 ... , continuing an apparent decrease in this species at Marion Island since the 1980s. There is no evidence that ...
Meeting Document : WG-EMM-10/P3 : Author(s): P.G. Ryan, P.A. Whittington and R.J.M. Crawford
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The diet of toothfish species Dissostichus eleginoides Smitt and D. mawsoni Norman with overlapping distributions around the South Sandwich Islands, Southern Ocean
. eleginoides) was examined around the south sandwich islands in the southern ocean, one of few regions with ... overlapping populations of the two species. Despite large differences in the proportion of stomachs containing ... compete for prey in regions where both are distributed. However, the large increase in rate of prey ... occurrence and size of prey in D. mawsoni stomachs relative to D. eleginoides suggests species differences in ...
Meeting Document : WG-FSA-11/P03 : Author(s): J. Roberts, J. Xavier and D. J. Agnew
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Results of trials undertaken around Crozet Island using pots to target Patagonian toothfish
longline fishery occurring in the Southern Indian Ocean off Kerguelen and Crozet islands. This fishery is ... accidental bird mortality. In order to find a solution to these issues a 25-day pot trial cruise was ... comparison are not straightforward due to the large number of pot model tested and the large differences in ... fishing techniques and further investigations are needed to be in position to asses the economic viability ...
Meeting Document : WG-FSA-10/10 : Author(s): N. Gasco, P. Tixier and C. Guinet (France)
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To the question for bioregionalisation of the Antarctic waters with ecosystem approach
, species of macro- and mesoplancton, algaes and protosoa, in other words all the components of ecosistem ... and food chains. At the same time naturel boundary, in the form of the Antarctic Convergence (AC) in ... different Sectors of Antarctica is located in different latitudes, and the structure of ACC modify greatly ... good isolation ecosistem. In my book (Shust,2001), take into account the general geological and ...
Meeting Document : SC-CAMLR-XXV/BG/18 : Author(s): Delegation of Russia