Résultats de la recherche
-
Revised research plan for the exploratory longline fishery for Dissostichus spp. in 2012/13 Subarea 48.6 and Divisions 58.4.1, 58.4.2 and 58.4.3a (this is a revision of WG-SAM-12/09)
of very small proportion of immature fish. Highest GSI for D. mawsoni in March over years was ... . The increase in abundance of fish with small sizes in SSRUs B and C of the south of Subarea 48.6 ... fish caught etc., the vessel may operate at neighboring available area and accumulate tagged and ... released fish to clarify the migration of fish, biological feasters such as distribution of developmental ...
Meeting Document : WG-FSA-12/60 Rev. 1 : Auteur(s): Delegation of Japan
-
Changes in the diet of the South Georgia shag Phalacrocorax georgianus at the South Orkney Islands along four consecutive years
, 1996, 1997 and 1998 breeding seasons. Demersal-benthic fish were by far the main prey, followed by ... fish populations, the comparison of our results with historical data may be indicating a recovery of G ... different diet analysis methods and to shags-related and/or fisheries-related changes in the food ... availability. If assumed that the fisheries carried out in the area affected the structure and abundance of the ...
Meeting Document : WG-EMM-00/8 : Auteur(s): R. Casaux and A. Ramón (Argentina)
-
Examination of the gut contents of Patagonian toothfish (Dissostichus eleginoides) from the toothfish pot fishery trials around South Georgia
empty stomachs was greatly reduced in fish caught using pots rather than longlines, increasing sample ... sizes. This was hypothesised to result from fish caught in pots suffering reduced levels of trauma. The ... most common prey item for fish caught using pots was prawns. This prey category was localised in ... location and depth. However prawns were not common in the stomachs of fish caught from this location using ...
Meeting Document : WG-FSA-00/25 : Auteur(s): G. Pilling, T. Daw, M. Purves, D. Agnew and J. Xavier (United Kingdom)
-
Skate tagging in the Heard Island and McDonald Island (Division 58.5.2) toothfish fishery up to 2013
Abstract: The fisheries targeting Patagonian toothfish (Dissostichus eleginoides) and mackerel ... bycatches. A tagging program has operated in these fisheries since 2001 to learn more about the movement and ...
Meeting Document : WG-FSA-13/22 : Auteur(s): G.B. Nowara, T.D. Lamb and D.C. Welsford (Australia)
-
Finfish distribution and abundance in Subareas 48.1 and 48.2, 2016–2018. Research proposal for the second year
made by WG-SAM-16, a new proposal is provided to determine the distribution and abundance of fish in ... in each stratum depth. With the data obtained in each subarea, the density of fish resources will be ... the main species of fish caught will continue. Author(s): Delegation of Chile Title: Finfish ... the US AMLR Program, Southwest Fisheries Science Center, National Marine Fisheries Service, USA ...
Meeting Document : WG-FSA-16/31 : Auteur(s): Delegation of Chile
-
Updates to Fishery Reports – A prototype based on the ‘Exploratory fishery for Dissostichus mawsoni in Subarea 48.6’ Fishery Report
Abstract: This document presents a prototype of Fishery Report built using R Markdown. Documents ... SAM meeting server). The 2018 Working Group on Fish Stock Assessment welcomed the Secretariat’s intent ... Approval: Approved Secretariat Workflow Status: Content Approved Document Release Consent: No Delegation ...
Meeting Document : WG-SAM-2019/35 : Auteur(s): CCAMLR Secretariat
-
Analysis of the diet of Champsocephalus gunnari in Subarea 48.3, in late summer of years 1994–97, Dr E. Holmberg surveys
years of krill scarcity and fish, was only occasional or in negligible amounts, showing interannual ... . Likewise, in the four Holmberg 1944-1997 surveys, high proportions of fish exhibited empty stomachs ... ;Q" (%) methods. Krill (Euphausia superba) followed by the amphipod hyperiid Themisto ... of krill in the Statistical Subarea 48.3 in the period investigated can be defined as low in 1944 ...
Meeting Document : WG-FSA-97/48 : Auteur(s): Barrera-Oro, E., Marschoff, E., Casaux, R.
-
Linking predator and prey behaviour: contrasts between Antarctic fur seals and macaroni penguins at South Georgia
occurred in 80% of fur seal diet samples, with fish remains in 37% of samples. Penguin diets contained the ... highest proportion of fish in over 20 years of routine monitoring (46% by mass; particularly the myctophid ... foraged close to the Shag Rocks shelf-break, probably exploiting the high daytime biomass of fish in this ... either species. This highlights the importance of myctophid fish as an alternative trophic pathway for ...
Meeting Document : WG-EMM-10/P07 : Auteur(s): C.M. Waluda, M.A. Collins, A.D. Black, I.J. Staniland and P.N. Trathan
-
Inter-annual variation in condition index of the mackerel icefish Champsocephalus gunnari
. High condition indices, indicative of good feeding conditions, were present when krill were abundant in ... the region. Years when krill were scarce and condition index was consequently low, were consistent ... with years when indices from land-based krill predators also indicated krill were scarce. Author(s ...
Meeting Document : WG-EMM-96/43 : Auteur(s): Parkes, G., Everson, I., Kock, K.-H.
-
Developing robust biomass estimates and advice on catch limits in research blocks
Scientific Committee requested that the changes to the methods be reviewed, that scientific rational for the ... relationship between CPUE and fish density in the Ross Sea reference area for the first time. The resulting ...
Meeting Document : WG-SAM-17/37 : Auteur(s): S.J. Parker, S. Mormede, A. Dunn, S.M. Hanchet and C. Marsh