Search results
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Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.3a
Abstract: The current season (2014/15) is the final one of the first three-season research which ... by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ... estimator was largely different from that using the CPUE method. Predicted numbers of tag recaptures from ... during 2013-14 seasons. Understanding of the resource structure through clarification of their life ...
Meeting Document : WG-SAM-15/03 : Author(s): Delegation of Japan
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Skate tagging in the Heard Island and McDonald Island (Division 58.5.2) toothfish fishery up to 2013
take three species of skates, Bathyraja eatonii, B. irrasa and B. murrayi, as their most common ... biology of these species. In the 13 years, over 12,000 skates have been tagged, with 112 recaptures, a ... recapture rate of less than one percent. The average distance between release and recapture for each of the ... in all directions. Most recaptures occurred within the first three years, with the maximum time at ...
Meeting Document : WG-FSA-13/22 : Author(s): G.B. Nowara, T.D. Lamb and D.C. Welsford (Australia)
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Casal2: New Zealand’s integrated population modelling tool
assessment pack-age since 2002. Casal2 replicates most of CASAL’s functions such as many stocks, fisheries ... , and areas; age-or length-based dynamics; the use of several data sources (e.g., abundance indices, age ... efficient program-ming practices and tools than CASAL. CASAL has enabled a more efficient use of resources ... for stockassessments, such as allowing a wider range of staff to conduct assessments, helped ...
Meeting Document : WG-SAM-18/P01 : Author(s): I. Doonan, K. Large, A. Dunn, S. Rasmussen, C. Marsh and S. Mormede
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ECOLOGICAL REPERCUSSIONS OF HISTORICAL FISH EXTRACTION FROM THE SOUTHERN OCEAN
Abstract: A major mid-1980s shift in ecological structure of significant portions of the Southern ... Ocean was partially due to the serial depletion of fish by intensive industrial fishing, rather than ... stocks were on average reduced to <50%, and finally (mid-1980s) to <20%, of original size. Despite ... strong year classes, as is true of such fish elsewhere. A climate regime, the Southern Annular Mode, once ...
Meeting Document : WG-EMM-08/P07 : Author(s): D. Ainley and L. Blight
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Species variability and population structure of Euphausiacea in Admiralty Bay (King George Island; South Shetland Islands) during Antarctic summer
Abstract: The main component of zooplankton in Antarctic pelagic waters, apart from copepods or ... of the penguins and pinnipeds’ diet. Admiralty Bay, because of its specific hydrological conditions ... , is an interesting area for that kind of biological study. Moreover, King George Island, where ... Admiralty Bay is located, is a region of dynamic climate characterized by variable maritime conditions which ...
Meeting Document : WG-EMM-14/60 : Author(s): A. Panasiuk-Chodnicka, J. Wawrzynek and M. Iwona Żmijewska (Poland)
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Assessing status and change in Southern Ocean ecosystems
trends of Southern Ocean marine ecosystems overall, against which change in ecosystem structure and ... likelihood of different states in the future. These requirements are needed by different bodies regionally ... Commission for the Conservation of Antarctic Marine Living Resources, and to provide strategic advice, such ... likelihood of future states be assessed? What are the gaps in knowledge that are required to be able to ...
Meeting Document : WG-EMM-13/36 : Author(s): A. Constable (Australia), D. Costa (USA), E. Murphy (United Kingdom), E. Hofmann, O. Schofield (USA), A. Press (Australia), N. Johnston (United Kingdom) and L. Newman (Australia)
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MODELLING ANTARCTIC KRILL: SCALE, MOVEMENT AND AGE‐STRUCTURE
time of year in which the data were collected, with multiple surveys at different times within a year ... Abstract: The organization, example outputs, and future objectives of an integrated, age ... 's capabilities are illustrated using 19 years of survey data collected by the U.S. AMLR Program ...
Meeting Document : WG-EMM-11/43 Rev. 1 : Author(s): D. Kinzey, G. Watters and C. Reiss (USA)
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Winter distribution and condition of Antarctic krill in relation to sea-ice and water column production in the South Shetland Islands during Austral Winter 2013
Abstract: Acoustic and net sampling of Antarctic Krill and other euphausiids was conducted at 88 ... was expansive (north of 60 S around Elephant Island) and the sea ice concentration was mostly more ... than 50%. Observations of birds and mammals showed that many species were found in southwestern ... Bransfield Strait, associated with the high concentrations of krill, an area targeted by the krill fishery in ...
Meeting Document : WG-EMM-14/13 : Author(s): C.S. Reiss, J. Walsh, K. Dietrich and J.A. Santora (USA)
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Report on the effectiveness of integrated weight (fast sinking) longlines in reducing the mortality of white-chinned petrels and sooty shearwaters in autoline longline fisheries
Abstract: The difference in the number of white-chinned petrels (Procellaria aequinoctialis) and ... conducted in the seabird breeding seasons (October/November) of 2002 and 2003 on F/V’s Janas and Avro ... the Janas and Avro Chieftain were followed by large number of seabirds, including 200-1,400 white ... -chinned petrels and up to 400 sooty shearwaters. Lines were set in day-light and at night, and a single ...
Meeting Document : WG-FSA-04/72 : Author(s): G. Robertson (Australia), N. Smith (New Zealand), B. Wienecke and S. Candy (Australia)
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Fisheries
approach, and management objectives which balance ‘conservation’ and ‘rational use’ of living resources and ... recognises five types of fisheries that reflect the stage of development and the level of information ... ensure the long-term sustainability of the fishery. These limits and the other operational aspects ... , and currently apply to toothfish, icefish and krill fisheries. Other fisheries have operated at ...
Page : Site Section: Fisheries