Résultats de la recherche
-
Subgroup on Assessment Methods: Report to the Working Group on Fish Stock Assessment 2002
Abstract: Over the last two years, discussions in WG-EMM, WG-FSA and the Scientific Committee ... . WG-FSA noted (paragraph 11.3, WG-FSA 2001) that there are substantial difficulties added to the work ... of the assessment subgroup when new quantitative methodologies are introduced and incorporated into ... assessments undertaken during the time of a single meeting of WG-FSA. Issues related to the current procedures ...
Meeting Document : WG-FSA-02/80 : Auteur(s): A.J. Constable (Subgroup Coordinator)
-
Revision of the fishery–foraging overlap model
Abstract: The fishery-foraging model of Agnew and Phegan (1995) was reviewed by the Working Group ... on Ecosystem Monitoring and Management and its Subgroup on Statistics in 1997. The review found that ... the index calculated in that model did not directly measure overlap between penguin foraging demands ... and the krill fishery in waters around the South Shetland Islands and Antarctic Peninsula, but rather ...
Meeting Document : WG-EMM-98/05 : Auteur(s): Secretariat
-
Terra Nova Bay: hot spot in marine and terrestrial biodiversity, knowledge and functioning of the ecosystem
Abstract: The Terra Nova Bay area is particularly valuable for science due to the presence of ... unique marine and terrestrial flora and fauna and the high diversity at both species and community level ... . From an oceanographic perspective, the area is characterised by the occurrence of the Terra Nova Bay ... polynya, a crucial region for the formation of the High Salinity Shelf Water (HSSW), formed by the ...
Meeting Document : WS-MPA-11/14 : Auteur(s): S. Torcini, M. Vacchi, S. Aliani, G. Bavestrello, A. Bergamasco, G. Budillon, B. Calcinai, G. Catalano, R. Cattaneo-Vietti, C. Cerrano, M. Chiantore, S. Corsolini, R. Bargagli, A. Dell’Anno, G. di Prisco, G. Fusco, S. Focardi, L. Gugliemo, G. Lauriano, P. Luporini, O. Mangoni, S. Olmastroni, F. Pezzo, E. Pisano, L. Ghigliotti, P. Povero, S. Puce, A. Pusceddu, E. Rusciano, M. Saggiomo, V. Saggiomo, M.C. Gambi, S. Schiaparelli, G. Spezie, C. Verde, P. Del Negro (Italy)
-
DEFINING TAG RATES AND TACS TO OBTAIN SUITABLY PRECISE ABUNDANCE ESTIMATES FOR NEW AND EXPLORATORY FISHERIES IN THE CCAMLR CONVENTION AREA
. With respect to the tagging-based abundance estimator, we use the Lincoln-Petersen method and derive a ... formula that gives the expected coefficient of variation of the abundance estimate in terms of the number ... of releases and recaptures, which can in turn be expressed in terms of the tagging rate per tonne ... caught, the catch taken and the postulated underlying exploitable biomass. This relationship is shown to ...
Meeting Document : WG-SAM-08/06 : Auteur(s): R.M. Hillary (UK)
-
Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Bird Island, South Georgia during the 1993 winter and 1993/94 pup-rearing season
the fourth consecutive winter and sixth consecutive summer at Bird Island, South Georgia. In the 1993 ... winter the number of entangled seals was only 39% of the record 1992 total, but still 5 times the numbers ... in 1990 and 1991. Nearly all animals were juveniles, half with severe injuries and the proportion of ... females (40%) was the highest yet reported. The proportion of animals entangled in packaging bands was the ...
Meeting Document : SC-CAMLR-XIII/BG/03 : Auteur(s): Delegation of United Kingdom
-
Estimation of the biomass of krill in Prydz Bay during January/February 1991, February/March 1992 and January/ February 1993 using echo integration
Abstract: Hydroacoustic surveys of the abundance of krill (Euphausia superba) in the Prydz Bay ... region were undertaken in January/February 1991, February/March 1992 and January/February 1993. The ... surveys indicated some association of krill with the shelf break in the western part of the survey area ... and the centre of the Prydz Bay region but also found that the shelf break was in general not a region ...
Meeting Document : WG-Krill-94/21 : Auteur(s): T. Pauly and I. Higginbottom (Australia)
-
Further development of coarse- and medium-scale spatially explicit population dynamics operating models for Antarctic toothfish in the Ross Sea region
operating models for Antarctic toothfish in the Ross Sea. The operating models consider both a coarse-scale ... and medium-scale spatial resolution and consider scenarios where abundance can be present over the ... entire Ross Sea region or restricted to areas where the fishery has operated. The models are implemented ... in the generalised Bayesian population dynamics model, the Spatial Population Model (SPM). The SPM ...
Meeting Document : WG-FSA-12/44 : Auteur(s): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
-
Research plan for the exploratory fisheries for Dissostichus spp. in Division 58.4.1 in 2014/15
the latest CCAMLR C2 and observer data toward the development of research plan for the 2014/15 ... exploratory fishery of Dissostichus mawsoni in Subarea 58.4.1. The stock sizes for five research blocks ... (5841_1, 5841_2, 5841_3, 5841_4 and 5841_5) were estimated by the Petersen estimator and the CPUE x seabed ... the CPUE method recommended at the last WG-FSA meeting. The stock size using the Petersen estimator ...
Meeting Document : WG-SAM-14/02 : Auteur(s): Delegation of Japan
-
Estimating future krill catches that meet the CCAMLR and alternative decision rules for FAO Subarea 48.1 using an integrated assessment model
incorporates catch and length-composition data from the krill fishery with biomass indices and length ... -compositions from research surveys has been developed. The model uses statistical fits to these data to ... estimate the effects of the fishery on the krill population. The model estimates parameters representing ... krill population biology and the fishery during the period with data (1976 to 2014 in these models) and ...
Meeting Document : WG-EMM-15/51 Rev. 1 : Auteur(s): D. Kinzey, G.M. Watters and C.S. Reiss (USA)
-
Integrated research proposal for Dissostichus spp. in Subarea 88.3 by the Republic of Korea, New Zealand and Ukraine
the proposal in 2017. The joint research proposal was for 3 years covering the period 2017/18, 2018/19 ... blocks where tagged fish have previously been released on the slope, while also prospecting two of the ... northern seamount complexes and two boxes on the continental shelf, where no research has occurred ... . Following a proposal from the Ukraine to join the research plan in 2018, the Scientific Committee requested ...
Meeting Document : WG-SAM-2019/02 : Auteur(s): Delegations of the Republic of Korea, New Zealand and Ukraine