Search results
-
The influence of environmental variables and mitigation measures on seabird catch rates in the Japanese tuna longline fishery within the Australian Fishing Zone, 1991–1995
Abstract: Long term fisheries observer data were used to analyse the influence of a range of ... environmental variables and mitigation measures upon catch rates of seabirds in the Japanese pelagic longline ... were set during summer, in southern areas of the zone, and during daylight hours. However ... , interpretation of changes in catch rates resulting from the use of mitigation measures or from weather effects ...
Meeting Document : WG-FSA-98/32 : Author(s): N. Brothers, R. Gales and T. Reid (Australia)
-
The diet of toothfish species Dissostichus eleginoides Smitt and D. mawsoni Norman with overlapping distributions around the South Sandwich Islands, Southern Ocean
Abstract: The diet of Antarctic toothfish (Dissostichus mawsoni) and Patagonian toothfish (D ... . eleginoides) was examined around the south sandwich islands in the southern ocean, one of few regions with ... overlapping populations of the two species. Despite large differences in the proportion of stomachs containing ... prey (76.2 % of D. mawsoni compared to 7.2 % of D. eleginoides), diet composition was broadly similar ...
Meeting Document : WG-FSA-11/P03 : Author(s): J. Roberts, J. Xavier and D. J. Agnew
-
Reports on abundance and biological information of toothfish in Division 58.4.4 a & b by Shinsei maru No. 3 in 2013/14 season
Abstract: A survey was conducted to collect data of stock status and various biological ... information of toothfish in the research blocks 58.4.4b_1 (SSRU 58.4.4C) and 58.4.4b_2 (SSRU 58.4.4D) of ... Division 58.4.4b (Ob Lena Banks) from July 18 to September 20, 2014. A total of 88 hauls using normal ... trotline system were made in the blocks. Total catch of Dissostichus eleginoides (excluding those tagged ...
Meeting Document : WG-SAM-15/14 : Author(s): Delegation of Japan
-
REPORT ON A RANDOM STRATIFIED TRAWL SURVEY TO ESTIMATE DISTRIBUTION AND ABUNDANCE OF DISSOSTICHUS ELEGINOIDES AND CHAMPSOCEPHALUS GUNNARI IN THE HEARD ISLAND REGION (DIVISION 58.5.2) FOR 2008 AND 2009
generally reduced from the previous year’s survey, with the catch of toothfish being one third of that for ... the previous year and those of grey rock cod, unicorn icefish and skate species down by half. Catches ... of mackerel icefish and macrourids were similar to the previous RSTS. One of the most notable ... features of the survey was the very large catch of jellyfish. In contrast, overall catches for the 2009 ...
Meeting Document : WG-FSA-09/34 : Author(s): G.B. Nowara (Australia)
-
Proposal for an acoustic krill biomass survey in CCAMLR Subarea 48.1 in relation to the hydrological environment and in conjunction with carbon cycling and temperature adaptation experiments of krill and salps
Abstract: As part of the German contribution to Convention for the Conservation of Antarctic ... CCAMLR division 48.1 during April 2018. The survey will be part of a larger research cruise (PS112 ... ) investigating the role of krill and salps in Southern Ocean carbon cycling and the temperature adaptation ... capacities of both species in the context of climate change. Acoustic survey and physiological experiments ...
Meeting Document : WG-EMM-17/39 : Author(s): B. Meyer, L. Suberg, S. Fielding, O.R. Godø and C. Reiss
-
Krill catches and consumption by land-based predators in relation to distance from colonies of penguins and seals in the South Shetlands and South Orkneys
Abstract: Zones of 20 km width are defined around selected colonies of penguins distributed ... around the coasts of the South Shetland and South Orkney Islands. Krill catches in these zones are shown ... , probably as a result of oceanographic conditions. About 50% of the catch in Subarea 48.1 from December to ... March was taken within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 and 1988 ...
Meeting Document : SC-CAMLR-X/BG/07 : Author(s): Secretariat
-
Krill catches and consumption by land-based predators in relation to distance from colonies of penguins and seals in the South Shetlands and South Orkneys, 1987-1990
Abstract: Zones of 20 km width are defined around selected colonies of penguins distributed ... around the coasts of the South Shetland and South Orkney islands. Krill catches in these zones are shown ... result of oceanographic conditions. About 50% of the catch in 48.1 from December to March was taken ... within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 and 1988 75% of the catch ...
Meeting Document : WG-CEMP-91/25 : Author(s): D.J. Agnew (Secretariat)
-
AMLR Hydroacoustic Survey System Description of Methods, A Case Study
Abstract: The AMLR hydroacoustic system used for surveys in the vicinity of Elephant Island and ... King George Island during 1987-1989 has hardware and software components. The method of analysis ... proceeds from the basic integration data (lm bins by 1min outputs) to the stratification of these data into ... blocks of area and finally a total estimate of abundance and statistical confidence limits about the ...
Meeting Document : WG-KRILL-89/10 : Author(s): M.C. Macaulay (USA)
-
Analysis of albatross and petrel distribution within the CCAMLR Convention Area: results from the global procellariiform tracking database
Abstract: This paper presents an analysis of the distribution of albatrosses and petrels in the ... Procellariiform Tracking Database. The results highlight the importance of the CCAMLR area, particularly for ... breeding distributions of populations of Wandering, Grey-headed, Light-mantled, Black-browed and Sooty ... Albatrosses, and populations of both Northern and Southern Giant-petrel and White-chinned petrel. The ...
Meeting Document : WG-FSA-05/75 : Author(s): BirdLife International
-
Review of fish and invertebrate by-catch in trawl fisheries in Division 58.5.2
Abstract: This paper presents estimates of the total removals of fish and invertebrate bycatch by ... 58.5.2. On average, 94 % of hauls in the D. eleginoides fishery and 93% of hauls in the C. gunnari ... fishery were observed. The percentage of observed hauls was used as a scaling factor to convert observed ... bycatch weights to estimates of total bycatch removed from the fishery. Bycatch in these trawl fisheries ...
Meeting Document : WG-FSA-02/46 : Author(s): E.M. van Wijk and R. Williams (Australia)