Résultats de la recherche
-
Analysis of the diet of Champsocephalus gunnari in Subarea 48.3, Dr E. Holmberg survey, February 1995
somewhat below the historical years of high abundance, but above than in 1994. Author(s): Marschoff, E ... Abstract: About 1300 stomach contents of the icefish Champsocepha1us gunnari caught in the ... Subarea 48.3 in February 1995, were analyzed using the frequency of occurrence (%) method. Krill ... %), followed in importance by the mysid Thysanoessa sp. (35%) and krill (24%). The picture around SG was found ...
Meeting Document : WG-FSA-95/36 : Auteur(s): Marschoff, E., Barrera-Oro, E., Casaux, R.
-
Diet and trophic niche of Macrourus spp. (Gadiformes, Macrouridae) in the Ross Sea region of the Southern Ocean
Abstract: Both Macrourus caml and M. whitsoni are probably abundant and widespread in the Ross ... (henceforth Macrourus spp.) in the Ross Sea region of the Southern Ocean. Samples of stomach contents were ... . Overall, amphipods were the dominant prey found in Macrourus spp. stomachs with an index of relative prey ... carnivorous. Other important prey were copepods (especially for fish with total length less than 30 cm), krill ...
Meeting Document : WG-EMM-12/P03 : Auteur(s): M.H. Pinkerton, J. Forman, D.W. Stevens, S.J. Bury and J. Brown
-
Modifications to the Generalised Yield Model in 2004, version GYM501E.EXE
fish at the nominated ‘recruitment age’ (age 4 for toothfish) in each year. The first year in the time ... error does not affect the assessments undertaken in recent years. This paper presents the nature of the ... Abstract: The Generalised Yield Model is used by the WG-FSA in the assessments of Champsocephalus ... gunnari, Dissostichus eliginoides and Euphausia superba. Its current version is GYM501D.EXE. In the course ...
Meeting Document : WG-FSA-04/91 : Auteur(s): A.J. Constable (Australia)
-
Summary of incidental mortality associated with fishing activities collected in scientific observer and vessel data during the 2019 season
seal morality event which occurred at the end of the 2018 season. Incidental mortality numbers for ... longline fisheries in which seabird mortalities have been reported are presented with the data from ... associated with fishing activities collected in scientific observer and vessel data during the 2019 season ...
Meeting Document : WG-FSA-2019/16 Rev. 2 : Auteur(s): CCAMLR Secretariat
-
Structure and distribution of the slope fish community in the vicinity of the sub-Antarctic Prince Edward Archipelago
investigated during the pilot survey conducted in April 2001 onboard fishing vessel MV Ibis. A total of 56 fish ... shifts in communities have occurred at 500-600 m and 800-900 m depth strata, which were probably ... exceptions most species occupy the fourth trophic level and are tertiary consumers. Wide variability in ... distribution of the slope fish community in the vicinity of the sub-Antarctic Prince Edward Archipelago ...
Meeting Document : SC-CAMLR-XXIII/BG/20 : Auteur(s): Delegation of South Africa
-
Interannual variability of polynya extent in the Antarctic Ocean
are trending like a pulse wave. In the whole Antarctic Ocean, peak years of polynyas extent are in the ... 1981/82 (from July 1981 to June 1982), 1991/92 and 1995/96. In the Antarctic Peninsula area, peak years ... ), coastal polynya and open ocean polynya, in the Southern Ocean. Polynya accelerates oceanic and atmospheric ... polynyas influence biological activity in the winter and spring season. However, there are no minute ...
Meeting Document : WG-EMM-01/34 : Auteur(s): M. Naganobu and K. Segawa (Japan)
-
Long-term study of the at-sea distribution of seabirds and marine mammals in the Scotia Sea, Antarctica
encounter rate in the five years (0.29 ± 1.57 whale/nautical mile), followed by Humpback whale (0.09 ± 0.54 ... showed successive decreases in abundance. Five baleen whales where recorded: Humpback, Sei, Southern ... ). Annual dissimilarity in abundance of both birds and cetaceans occurred in conjunction with changes in sea ... largest aggregations of all top predators (seabirds and cetaceans) were recorded mainly in two regions ...
Meeting Document : WG-EMM-14/06 Rev. 1 : Auteur(s): J.L. Orgeira, M. Alderete, Y.G. Jiménez and J.C. González (Argentina)
-
A revised estimate of short-term yield for the mackerel icefish (Champsocephalus gunnari) off Heard Island based on a trawl survey in 1998
population. Unlike the previous 3 years, the Age 2 cohort in 1998 is very weak and is expected to contribute ... little to the biomass in subsequent years. If recruitment to Age 2 in 1999 is also weak then the fishery ... Abstract: A random stratified trawl survey of Mackerel icefish in 2 populations (Plateau and ... Shell Bank) in the vicinity of Heard Island enabled a revised estimate of yield for the coming 2 seasons ...
Meeting Document : WG-FSA-98/54 : Auteur(s): A. Constable and D. Williams (Australia)
-
Antarctic sea ice losses drive gains in benthic carbon drawdown
Peninsula in the last few years has exposed new open water, allowing large blooms of phytoplankton to ... flourish in the newly exposed coastal areas. This new productivity has important consequences as the ... drawdown per year on the West Antarctic continental shelf. Carbon accumulation differs significantly ... in benthic carbon drawdown Microsoft Word File: sc-xxxiv-bg-34 abstract.docx Approval: Approved ...
Meeting Document : SC-CAMLR-XXXIV/BG/34 : Auteur(s): Delegation of the United Kingdom
-
Otolith and body size relationships in the mackerel icefish (Champsocephalus gunnari)
Paper Title: Otolith and body size relationships in the mackerel icefish (Champsocephalus gunnari ... commercial fishery around South Georgia. Sampling periods, designated by the year in which the samples were ... analyses of covariance were used to assess variability in model fits between years. Note that due to ... to 4 cm at c. 60 cm) in 1990 and 1997; in other years predictions were very similar and close to To ... OTOLITH AND BODY SIZE RELATIONSHIPS IN THE MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARD 1. Everson, B ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 117–123 : Auteur(s): Everson, I., B. Bendall and A. Murray