Résultats de la recherche
-
Proposal for further trials aimed at reducing Macrourus spp. by catch on autoliners targeting D. eleginoides with longlines around South Georgia
. We intend to trial two alternative configurations against IW systems in 48.3 in the 2007/08 fishing ... will apply. Author(s): Delegation of the United Kingdom Title: Proposal for further trials aimed at ... . All systems will have sink rates of at least 0.3 m.s-1. Comments on the experimental protocol are ... reducing Macrourus spp. by catch on autoliners targeting D. eleginoides with longlines around South Georgia ...
Meeting Document : WG-FSA-07/30 : Auteur(s): Delegation of the United Kingdom
-
A Petersen tag-recapture preliminary population assessment of Antarctic toothfish in CCAMLR Subarea 48.4 based on data for the 2009–2014 fishing seasons
tagging returns to be 1,027 tonnes during the 2013/14 season. In previous years the harvest rate used for ... data for the 2009–2014 fishing seasons Approval: Approved ... tag-recapture preliminary population assessment of Antarctic toothfish in CCAMLR Subarea 48.4 based on ...
Meeting Document : WG-FSA-14/30 Rev. 1 : Auteur(s): V. Laptikhovsky, R. Scott, M. Söffker, T. Earl and C. Darby (United Kingdom)
-
Guidelines for the preparation of hydroacoustic survey reports on krill
requirements for the preparation of reports of echometric surveys. An example is provided of the preparation of ... Paper Title: Guidelines for the preparation of hydroacoustic survey reports on krill Abstract ... / Description: The proposed guidelines provide an opportunity to perform comparative analyses and checks of ... surveys. The unification of echometric survey data is aimed at increasing the effectiveness of research on ... peltca 19/X1 1980 20-29/X1 30/X1 31/X1 1980-10/ 1981 BbIXO,D; H3 CeBaCTOnOJIR. Pas60pKa 3KCne ... - 165 - SC-CAMLR-V/BG/37 GUIDELINES FOR THE ... guidelines provide an opportunity to perform comparative analyses and checks of results obtained during ... of biomass of organisms. The guidelines contain a description of requirements for the preparation ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 165-193 : Auteur(s): Kalikhman, I.L.
-
Calculating effective releases and recaptures for stock assessments based on tag detection and tagging mortality indices
estimate effective tag releases and effective numbers of fish inspected for tags based on those indices ... recaptures for stock assessments based on tag detection and tagging mortality indices Approval: Approved ... developed using a methodology which controls for the spatial and temporal variability of fishing operations ... included in the stock assessment for the Ross Sea region and Amundsen Sea region, with the understanding ...
Meeting Document : WG-SAM-14/30 : Auteur(s): S. Mormede (New Zealand)
-
Procedures for proposals and reporting on research plans in data-poor fisheries
, WG-SAM-17 recommended that the procedures for research plan proposals in data poor fisheries be ... , and to provide recommendations for the Scientific Committee to consider with regard to a CCAMLR ... Conservation Measure 41-01, and provide recommendations for streamlining the review of new and ongoing research ... plans. As noted by the Scientific Committee and its Working Groups, we see benefit in an increased ...
Meeting Document : WG-FSA-17/13 : Auteur(s): S.J. Parker and D.C. Welsford
-
On Ageing Technique for Icefish (champsocephalus gunnari Lönnberg 1905) from South Georgia Island Shelf
for the third quarter of the year is appended Author(s): Zh.A. Frolkina (USSR) Title: On Ageing ... adjustment to age determination of fish longer than 30 cm with an enlarged otolith centre. An age-length key ... . This was done using specimens from strictly’ defined age groups. These radii measurements suggest an ... Technique for Icefish (champsocephalus gunnari Lönnberg 1905) from South Georgia Island Shelf Approval ...
Meeting Document : WG-FSA-89/19 : Auteur(s): Zh.A. Frolkina (USSR)
-
A RISK ASSESSMENT TO ADVISE ON STRATEGIES FOR SUBDIVIDING A PRECAUTIONARY CATCH LIMIT AMONG SMALL-SCALE MANAGEMENT UNITS DURING STAGE 1 OF THE STAGED DEVELOPMENT OF THE KRILL FISHERY IN SUBAREAS 48.1, 48.2, AND 48.3.
) and S. Hill (United Kingdom) Title: A RISK ASSESSMENT TO ADVISE ON STRATEGIES FOR SUBDIVIDING A ... . (2008) to assess the risks and tradeoffs associated with various management strategies for subdividing ... increase in some SSMUs. In general, the risks of depleting penguin and fish populations are greater for ... Fishing Option 3 than for Fishing Option 2 because the former option requires slightly more fishing in ...
Meeting Document : WG-EMM-08/30 : Auteur(s): G.M. Watters, J.T. Hinke (USA) and S. Hill (United Kingdom)
-
A model at the level of the foraging trip for the indirect effects of krill (Euphausia superba) fisheries on krill predators
fishery. 3. The biomass of krill appropriate for the predators (and the fishery) fluctuates from one year ... Abstract: 1. Although the development of fisheries for krill in the southern oceans has prompted ... population level effects. Here, we present for. the first time a model at the level of the foraging trip for ... to the next according to an age-structured, stochastic recruitment model. We use the model to ...
Meeting Document : WG-EMM-96/20 : Auteur(s): Switzer, P.V., Mangel, M.
-
A revised estimate of short-term yield for the mackerel icefish (Champsocephalus gunnari) off Heard Island based on a trawl survey in 1998
in 2000 will be predominantly on Age 5 fish. After this time, catch limits may need to be set at an ... Shell Bank) in the vicinity of Heard Island enabled a revised estimate of yield for the coming 2 seasons ... cohorts are still sufficiently strong to provide for a yield greater than estimates of the long term ... precautionary yield. Estimates of yield for the Heard Island Plateau population are 732 tonnes for 1999 and 518 ...
Meeting Document : WG-FSA-98/54 : Auteur(s): A. Constable and D. Williams (Australia)
-
Some comments on the procedure for testing estimators of krill abundance which utilise survey data
are then located at random within the survey area. These "two-level" models provide an ... patterns, which are compatible with existing information on the distributions from surveys. "Two-level ... comments on the procedure for testing estimators of krill abundance which utilise survey data Approval ... performance in practice. Such studies require a simple method for computer generation of krill distribution ...
Meeting Document : WG-KRILL-91/21 : Auteur(s): D.S. Butterworth, D.L. Borchers and D.G.M. Miller (South Africa)