Search results
-
Modelling catch and effort data using generalised linear models with random cruise effects: trawl fishery for mackerel icefish (Champsocephalus gunnari) in CAMLR Area 58.5.2
models (GLMMs) including data analytic methods for examining the appropriateness of model structure and ... parameter values was presented in WG-FSA-SAM 03-12 using Dissostichus eleginoides in Subarea 48.3 of the ... CAMLR area as an example dataset. The application of these procedures to trawl catches of ... Champsocephalus gunnari in Subarea 58.5.2 is described. For the trawl catch and effort data it was found the ...
Meeting Document : WG-FSA-03/35 : Author(s): S.G. Candy (Australia)
-
Age-at-length of Patagonian toothfish from South Georgia
Abstract: To provide an age-length key for use in modelling the age structure of the Patagonian ... toothfish stock around South Georgia, we used otoliths to estimate the age of a sample of 264 Patagonian ... toothfish (Dissostichus eleginoides) captured in the longline fishery. We used a thin section grinding ... machine to reveal a transverse plane through the otolith nucleus and between crenellations. A single ...
Meeting Document : WG-FSA-02/75 : Author(s): J. Ashford, M. Belchier, C. Jones and S. Bobko
-
Review of CCAMLR’s partnership in FIRMS
provide high-quality global information on the monitoring and management of marine fishery resources ... . CCAMLR joined this partnership in 2006 and has contributed fishery fact sheets on the exploratory ... are planned. In 2009, the Commission requested that a review of future collaboration with FIRMS be ... contributed to the objectives of Article IX and XXIII of the Convention through the further development of ...
Meeting Document : CCAMLR-XXIX/18 : Author(s): Secretariat
-
Using tag-recapture data to estimate catchability of a series of random stratified trawl surveys
Abstract: For the 2014 assessment of Patagonian toothfish (Dissostichus eleginoides) around the ... Heard Island and McDonald Islands (HIMI) in Division 58.5.2, a prior for catchability q of the random ... stratified trawl survey (RSTS) was estimated by comparing abundance estimates of the survey with abundance ... estimates calculated from the tag-recaptures data on the main trawl ground. Here, we use simulations to ...
Meeting Document : WG-SAM-15/34 : Author(s): W. de la Mare, P. Ziegler and D. Welsford (Australia)
-
New Zealand-Australia Antarctic Ecosystems Voyage
Abstract: RV Tangaroa carried out a 42-day research voyage to the Ross Sea from 29 January to 11 ... March 2015. The main purpose of the New Zealand-Australia Antarctic Ecosystems Voyage (TAN1502) was to ... undertake ecological studies of Ross Sea marine foodwebs of importance to top predators. The work was ... centred on the feeding areas of cetaceans, primarily blue whales and humpback whales, and in the Ross Sea ...
Meeting Document : WG-EMM-15/56 : Author(s): R.L. O’Driscoll (New Zealand)
-
Domain 1 MPA designation process: data sharing and future enhanced work
Abstract: During the last years, a large amount of information was gathered and shared in one ... unique project for the development of a representative system of MPAs in Domain 1. This process ... integrates, compiles, analyses and exposes a large amount of information, not only contributing to the best ... science available but also providing a platform for the sharing and visualization of information, further ...
Meeting Document : WG-EMM-16/73 : Author(s): M. Santos, A. Capurro and C.A. Cárdenas
-
Common fish by-catch species in CCAMLR krill fisheries
Description / Abstract: This simple guide is designed to assist in the identification of fish by ... -catch in the krill fisheries to appropriate taxonomic levels. The identification sheets are based on the ... information provided in WG-EMM 07/32 (A guide to identification of fishes caught along with the Antarctic ... permission to use that material). The guide includes an illustrated key to distinguish the families of fish ... Introduction This simple guide is designed to assist in the identification of fish by-catch in the krill ... fisheries to appropriate taxonomic levels. The identification sheets are based on the information provided ... in WG-EMM 07/32 (A guide to identification of fishes caught along with the Antarctic krill, T. Iwami ... that material). The guide includes an illustrated key to distinguish the families of fish that have ...
Document : Site Section: Science
-
Investigations of intensity of krill drift near South Georgia Island
Abstract: Calculation of drift’s speed (transport with current) of Antarctic krill along the ... ) was assumed about 60 km. Speed of drift in these spatial limits was assumed about 10 cm sec-1. The ... average density of krill before the beginning of transport along the island’s shore was assumed about 0.1 ... for three main types of water circulation (the typisation according to Maslennikov, 1979). Duration of ...
Meeting Document : WG-CEMP-92/32 : Author(s): V.V. Popkov (Russian Federation)
-
Sources of variability associated with Adélie penguin CEMP parameters measured at Béchervaise Island, East Antarctica
Abstract: We examine the magnitude of a variety of sources of variability associated with CEMP ... parameters. The CEMP parameters considered in this paper include: A3: breeding population size, A1: arrival ... be considered as either sampling variance or process related variance, although sometimes the two can ... be confounded. Temporal variability, that is the between-season variability, was consistent across ...
Meeting Document : WG-EMM-03/48 : Author(s): L.M. Emmerson, C. Southwell, J. Clarke and K. Kerry (Australia)
-
Interannual changes in body fat condition, stomach content mass and distribution of minke whales in Antarctic Areas IV and V
the six years included in the study, two were categorized as years of poor body fat condition, and ... three as years of good condition. Estimated body weight gain during the feeding season in poor years was ... 25 % lower than in good years. The relationship between girth and stomach content mass in the ice ... (Euphausia superba) was the dominant prey species, but in the southern part of the Ross Sea (in Area V), E ...
Meeting Document : WG-EMM-97/18 : Author(s): Ichii, T., Nishiwaki, S., Tamura, T., Fujise, Y., Matsuoka , K.