Search results
-
A proposal to revise the limitation of Macrourus by-catch in new and exploratory fisheries
Abstract: A new move-on rule was introduced in Conservation Measure 33-03 at CCAMLR-XXIV ... when the catch of Macrourus spp. by a single vessel exceeds 16% of its Dissostichus spp. catch in any ... two 10-day periods in a single SSRU (CM 33-03 paragraph 5). The interval of the “10-day period” was ... defined arbitrarily and sometimes does not fit the practical fisheries operations in the harsh Antarctic ...
Meeting Document : SC-CAMLR-XXVI/08 : Author(s): Delegation of Japan
-
CPUE and proportional recruit indices from Japanese krill fishery data in Subarea 48.1
Abstract: Proportional recruit indices and CPUE in Subarea 48.1 (Antarctic Peninsula region) from ... et al., 1997), and showed close relationship to sea ice indices. CPUE (catch/towing volume) in ... Livingston area showed a decreasing trend during the study period. Alternation of operational strategy in ... relation to the product quality and decrease of krill density in the areas were considered as the possible ...
Meeting Document : WG-EMM-97/35 : Author(s): Ichii, T., Kawaguchi, S., Naganobu, M.
-
CPUEs and body length of Antarctic krill during 1995/96 season in the fishing grounds around the South Shetland Islands
Abstract: This paper summarizes Japanese krill catch data during austral summer in 1995/96 season ... . Main fishing grounds were persistently formed in the north of Livingston Island throughout the season ... . CPUE in December was high but from January through June CPUE was comparable to the value of Livingston ... area in the previous fishing season. From January through early May, modal size of krill differed ...
Meeting Document : WG-EMM-97/36 : Author(s): Naganobu, M., Kawaguchi, S., Ichii, T.
-
Preliminary study on reproduction in Champsocephalus gunnari from Subarea 48.3, Dr Eduardo Holmberg survey, February/March 1994
Abstract: A preliminary histological analysis on the ovarian development in Champsocephalus ... commonly used. Oocytary resorption processes were observed during ovarian maturation. In some cases the ... ovaries presented few atretic oocytes; in others a generalized regression was found. In the southwest ... similar to that reported for the same species in the 1991 summer season. Author(s): G.J. Macchi and E.R ...
Meeting Document : WG-FSA-94/28 : Author(s): G.J. Macchi and E.R. Barrera-Oro (Argentina)
-
Regional catch analysis of the longline fishery of Dissostichus eleginoides (Pisces: Nototheniidae) in Chile
patagonian toothfish (Bacalao de profundidad), Dissostichus eleginoides, has been developed are based in ... statistics published by the SERNAP (National Fishery Service). It shows that activity has lasted few years in ... each geographic region considered. As captures have decreased in the northern zone, the artisanal fleet ... has migrated towards south, concentrating actually in the X Region of Chile and we attract attention ...
Meeting Document : WG-FSA-91/10 : Author(s): C. Lemaitre, P. Rubilar, P. Gebauer and C.A. Moreno (Chile)
-
Preliminary Results of a Bottom Trawl Survey Around Elephant Island in May/June 1986
fromboard RV "Polarstern" in May/June 1986 give some insight into spawning activities and changes ... in length compositions and biomass estimates in Notothenia rossii, N. gibberifrons, N. coriiceps ... only observed in N. c. neglecta, whereas very little or no spawning was evident for N. rossii, C ... . gunnari and Ch. aceratus. Peak spawning of N. c. neglecta is limited to only a few weeks. In populations ...
Meeting Document : WG-FSA-86/01 : Author(s): K.-H. Kock (FRG)
-
Observer coverage required for the prediction of incidental capture of seabirds in New Zealand commercial fisheries
numbers of incidental seabird captures (albatross and petrel taxa combined) in a fishery with a specified ... known history of seabird captures: the trawl fisheries targeting hoki in the Sub-Antarctic, on the ... Chatham Rise, and off the west coast of the South Island; the trawl fisheries targeting squid in the ... on the Chatham Rise and in waters south of 46° S. A random effects model was developed to enable the ...
Meeting Document : WG-FSA-05/50 : Author(s): M.H. Smith and S.J. Baird (New Zealand)
-
Adélie penguins as indicators of the state of the sea-ice in Adélie Land
Abstract: In the 2013-14 reproductive season, the 26,000 pairs of Adélie penguins from Pétrel ... the population there, a second complete breeding failure took place in the season 2016-17, leading to ... the deaths of all the chicks of the 28,000 Adélie pairs that bred in this season. Once more sea-ice ... extent was the major cause of failure. Sea-ice conditions in 2016-17 were even more drastic than in 2013 ...
Meeting Document : WG-EMM-17/01 Rev. 1 : Author(s): Y. Ropert-Coudert, A. Kato and C. Barbraud
-
Review of CCAMLR activities on monitoring marine debris in the Convention Area
impact on marine mammals and seabirds in the Convention Area has been reviewed. The CCAMLR Marine Debris ... items reached a peak in the period 1994-1996 at Bird Island and Signy Island, but declined after that ... . The number of debris items has increased at Bird Island in 2006 and Signy Island in 2007, but ... decreased at King George Island in 2007. The majority of items reported were packaging materials, fishing ...
Meeting Document : SC-CAMLR-XXVI/BG/10 : Author(s): Secretariat
-
DEVELOPMENT OF SPATIALLY EXPLICIT AGE-STRUCTURED POPULATION DYNAMICS OPERATING MODELS FOR ANTARCTIC TOOTHFISH IN THE ROSS SEA
operating models for Antarctic toothfish in the Ross Sea. The operating models consider both a coarse-scale ... spatial distribution parameters as an aid in evaluating the operating models. The models are implemented ... in the generalised Bayesian population dynamics model, the Spatial Population Model (SPM). The SPM ... discrete time-step state-space model that represents a cohort-based population age structure in a spatially ...
Meeting Document : WG-SAM-09/18 : Author(s): A. Dunn, S. Rasmussen and S. Hanchet (New Zealand)