Search results
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Changes in the fish biomass around Elephant Island (Subarea 48.1) from 1976 to 1996
, y a las di f icul tades experimentadas a1 intentar la ordenacion d e pesquerias que explotan conjuntos ... from 1978/79 to 1988/89, with most of the commercial harvesting taking place in the first two years of ... the fishery. Results of bottom trawl surveys conducted by Germany in the vicinity of Elephant Island ... in the 1980s showed that stocks of Champsocephalus gunnari, Notothenia rossii, Gobionotothen ... gibberifrons and Chaenocephalus aceratus have been considerably affected by fishing. Stocks of G. gibberifrons ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 165–189 : Author(s): Kock, K.-H
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Directed research. Antarctic Marine Living Resources (AMLR). A program development plan
program providing information needed for US policy regarding the conservation and management of the marine ... living resources in the ocean areas surrounding Antarctica. The program is in support of US participation ... in the Commission and Scientific Committee of the Convention for the Conservation of Antarctic Marine ... Living Resources (CCAMLR), which established the system for managing the living resources of the ... MARINE LIVING RESOURCES (AMLR). A PROGRAM DEVELOPMENT PLAN Office of Science and Technology, NMFS ... , NOAA, U.S. Department of Commerce (U.S.A.) Abstract The U.S. Antarctic Marine Living Resources ... conservation and management of the marine living resources in the ocean areas surrounding Antarctica. The ... program is in support of U.S. participation in the Commission and Scientific Committee of the Convention ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 363-373 : Author(s): Office of Science and Technology, NMFS, NOAA, US Department of Commerce (USA)
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Editorial
Paper Title: Editorial Abstract / Description: This is the 18th volume of CCAMLR Science and the ... contents reflect the important science that supports CCAMLR’s management of the marine living resources of ... the Southern Ocean. In particular there is a suite of papers that address key aspects of improving ... assessment of the population status of toothfish and of assessing the risk associated with gathering data and ... Science, Vol. 18 (2011): 167 167 This is the 18th volume of CCAMLR Science and the contents reflect the ... important science that sup- ports CCAMLR’s management of the marine living resources of the Southern Ocean ... . In particular there is a suite of papers that address key aspects of improving assessment of the ... population status of toothfish and of assessing the risk associated with gathering data and interpreting ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 167 : Author(s): Editors
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Precautionary measures for a new fishery on Martialia hyadesi (Cephalopoda, Ommastrephidae) in the Scotia Sea: an ecological approach
, Ommastrephidae) in the Scotia Sea: an ecological approach Abstract / Description: In anticipation of the ... development of a new fishery for the ommastrephid squid Martialia hyadesi in the Scotia Sea, this paper ... presents a revision of annual consumption of the species by higher predators and provides a brief review of ... information about the life cycle and distribution of the species obtained from research fishing and commercial ... United Kingdom Abstract In anticipation of the development of a new fishery for the ommastrephid ... squid Martialia hyadesi in the Scotia Sea, this paper presents a revision of annual consumption of the ... species by higher predators and provides a brief review of information about the life cycle and ... distribution of the species obtained from research fishing and commercial catches. This species is eaten by ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 125–139 : Author(s): Rodhouse, P.G
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Estimating krill recruitment and its variability
likelihood method is developed for the decomposition of krill density-at-length data into the proportion of ... recruits in a population sampled by a net haul survey. Preliminary results from a series of five net haul ... surveys in the South Atlantic and the Indian Ocean sectors of the Southern Ocean give a mean recruitment ... rate for 1+ krill (the ratio of the number of krill aged one year to the number of krill aged one year ... of krill density-at-length data into the proportion of recruits in a population sampled by a net ... haul survey. Preliminary results from a series of five net haul surveys in the South Atlantic and the ... Indian Ocean sectors of the Southern Ocean give a mean recruitment rate for l+ krill (the ratio of the ... number of krill aged one year to the number of krill aged one year and above) of 0.339 with a standard ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 55–69 : Author(s): de la Mare, W.K
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Supplementary data on exploited stocks in Division 58.5.1 (Kerguelen)
/ Description: The results of fishing cruises carried out from 1986/87 to 1988/89 in Division 58.5.1 (Kerguelen ... Island) have made possible a review of the status of the various harvested fish stocks. Since 1984, an ... average annual growth of 36% has been noted in the abundance of the juvenile section of the stock of ... Notothenia rossii, a species which is at present only fishable as a by-catch. The total biomass of the stock ... DIVISION 58.5.1 (KERGUELEN) G. Duhamel Abstract The results of fishing cruises carried out from 1986 ... /87 to 1988/89 in Division 58.5.1 (Kerguelen Island) have made possible a review of the status of ... the various harvested fish stocks. Since 1984, an average annual growth of 36% has been noted in the ... abundance of the juvenile section of the stock of Notothenia rossii, a species which is at present only ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 147–161 : Author(s): Duhamel, G.
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Data on krill (Euphausia superba Dana) consumption by coastal fishes in Division 58.4.2 (Kosmonavtov and Sodruzhestva Seas)
100 to 500 metres. Stock Size Seasonal Diet Percentage Krill Species (tonnes) (body mass) of ... Diet Percentage Krill Stock Seasonal Diet Percentage Krill (tonnes) (body mass) ofKrill Consumption ... (tonnes) (body mass) ofKrill Consumption in Food (tonnes) in Food (tonnes) 3.438* 81* 67236*. 89504 ... Stock 68° -78Of: and (x 1()6 tonnes) Production (x 103 tonnes) to the South of Consumed 65°30'S Min ... 58.4.2 (Kosmonavtov and Sodruzhestva Seas) Abstract / Description: Current estimates of the level of ... then been extrapolated over all of Antarctica. According to these calculations the entire amount of ... krill consumed is between 166 and 450 million tonnes; of this amount fish consume from 30 to 32 million ... tonnes (Lubimova, Shust, 1980 and Shust, 1987). However these extrapolated values of krill consumption by ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 305–319 : Author(s): Pakhomov, Y.A., V.A. Bibik and V.V. Gerasimchuk
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Statistical problems in krill stock hydroacoustic assessments
: Two primary issues are at question for hydroacoustic assessments of krill. The first is the methods ... applied to establish biomass in a survey area and the second is the improvement in accuracy of target ... -strength measurements. In the case of statistical methods, there are no clear guidelines for deciding what ... does not invalidate the use of available methods to conduct surveys and analyze results. In the case of ... assessments of krill. The first is the methods applied to establish biomass in a survey area and the second ... is the improvement in accuracy of target-strength measurements. In the case of statistical methods ... well addressed by present techniques. However, this does not invalidate the use of available methods ... to conduct surveys and analyze results. In the case of target-strength accuracy, even if the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 301–309 : Author(s): Macaulay, M.C.
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Can we satisfactorily estimate variation in krill abundance?
: Knowledge of abundance and rates of change of abundance are basic requirements for fisheries models. Catch ... of abundance. It is less satisfactory for pelagic fisheries. Evidence is given that CPUE estimated ... from data reported to the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR ... ) does not provide a realistic index of krill abundance. Recognising that there is a large natural year ... SATISFACTORILY ESTIMATE VARIATION IN KRILL ABUNDANCE?* I. Everson1 (United Kingdom) Abstract Knowledge of ... abundance and rates of change of abundance are basic requirements for fisheries models. Catch per unit ... effort (CPUE) has traditionally been used in demersal fisheries assessments as an estimator of ... reported to the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) does not ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 375-376 : Author(s): Everson, I.
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Sea-surface temperature and krill catches around South Georgia in December–February 1989–1991 and 1999–2001
1989–1991 and 1999–2001 Abstract / Description: Monitoring of sea-surface temperatures (SSTs) in ... further analysis of SST maps, provides continuous information on hydrological conditions in the area ... . Analyses of the data at the beginning of each summer season could enable us to evaluate the potential for ... conducting a krill fishery in the area during the entire year. The reliability of these forecasts could be ... – sst.ocean@g23.relcom.ru Abstract Monitoring of sea-surface temperatures (SSTs) in Subarea 48.3, which ... of SST maps, provides continuous information on hydrological conditions in the area. Analyses of ... the data at the beginning of each summer season could enable us to evaluate the potential for ... conducting a krill fi shery in the area during the entire year. The reliability of these forecasts could be ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 165–174 : Author(s): Vanyushin, G.P