Résultats de la recherche
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Acoustic estimates of krill biomass in the Elephant Island area: 1981–1993
Paper Title: Acoustic estimates of krill biomass in the Elephant Island area: 1981–1993 Abstract ... / Description: Acoustic estimates of krill biomass in the vicinity of Elephant Island are presented for the ... years 1981 to 1993 (with the exception of 1982 and 1986). Estimates for 1981 to 1991 are based on ... previous reports adjusted for the recently proposed definition of krill target strength (Greene et al ... CCAMLR Science, Vol. 1: 1-5 ACOUSTIC ESTIMATES OF KRILL ... Jolla, California 92038, USA D.A. Demer Scripps Institution of Oceanography La Jolla, California ... 92093, USA (Supported by the Hertz Foundation) Abstract Acoustic estimates of krill biomass in the ... vicinity of Elephant Island are presented for the years 1981 to 1993 (with the exception of 1982 and 1986 ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 1–5 : Auteur(s): Hewitt, R.P. and D.A. Demer
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Quantifying movement behaviour of vessels in the Antarctic krill fishery
Paper Title: Quantifying movement behaviour of vessels in the Antarctic krill fishery Abstract ... / Description: Ten years of recent fine-scale haul-by-haul krill data were used to characterise the behaviour ... of the krill fishery. Analysis of distance between hauls in relation to their catch level revealed a ... number of fishing grounds within this area. The same patterns were observed for vessels from other ... Quantifying movement behaviour of vessels in the antarctic krill fishery S. Kawaguchi and S.G. Candy ... Australian Antarctic Division Department of the Environment, Water, Heritage and the Arts Channel Highway ... Kingston, Tasmania 7050 Australia Email – so.kawaguchi@aad.gov.au Abstract Ten years of recent fine ... -scale haul-by-haul krill data were used to characterise the behaviour of the krill fishery. Analysis of ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 131–148 : Auteur(s): Kawaguchi, S. and S.G. Candy
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Observations on haul-out patterns and trends in the breeding populations of southern elephant seal at Península Valdés (Patagonia) and Stranger Point (25 de Mayo - King George I.)
Paper Title: Observations on haul-out patterns and trends in the breeding populations of southern ... intrinsic population growth rate is positive. In 1982, at Stranger Point, a sharp decrease of the female ... component of the population was observed (r=-56.54%). The recovery of the population at Stranger Point, and ... the global increase at Península Valdés, indicate the good condition of these populations. File: 21 ... PATTERNS AND TRENDS IN THE BREEDING POPULATIONS OF SOUTHERN ELEPHANT SEAL AT PENINSULA VALDES (PATAGONIA ... decrease of the female component of the population was observed (r=-56.54%). The recovery of the ... population_at Stranger Point, and the global increase at Peninsula Valdes, indicate the good condition of ... PATTERNS AND TRENDS IN THE BREEDING POPULATIONS OF SOUTHERN ELEPHANT SEAL AT PENINSULA VALDES ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 453-463 : Auteur(s): Vergani, D.F., M.N. Lewis and Z.B. Stanganelli
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Age determination of Champsocephalus gunnari Lönnberg, 1905 (Channichthyidae) taken in the South Georgia area in 1990
Paper Title: Age determination of Champsocephalus gunnari Lönnberg, 1905 (Channichthyidae) taken ... the status of the Champsocephalus gunnari stock in the South Georgia area. In February 1990 the size ... composition of catches taken by Akademik Knipovich had three peaks corresponding to size groups of 16-18, 24 ... 9+ were present in catches. Two peaks in size composition correspond with fish of the 1987 and 1985 ... WG-FSA-90/33 AGE DETERMINATION OF CHAMPSOCEPHALUS ... RV Hill Cove and RV Akademik Knipovich to study the status of the ChampsocephaZus gunnari stock in ... the South Georgia area. In February 1990 the size composition of catches taken by Akademik Knipovich ... had three peaks corresponding to size groups of 16-18, 24-26 and 30-34 cm. Only vertebra samples (n ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 285–293 : Auteur(s): Kochkin, P.N.
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Feeding and food intake of Electrona carlsbergi (Tåning, 1932) Myctophidae
Paper Title: Feeding and food intake of Electrona carlsbergi (Tåning, 1932) Myctophidae Abstract ... by various methods was from 3.7 to 5.6% of fish body weight. The amount of food consumed by E ... . carlsbergi during the year in the waters to the south of the Antarctic Convergence is about 15 times fish ... WG-FSA-90/18 o FEEDING AND FOOD INTAKE OF ELECTRONA ... carlsbergi feeds mainly on copepods. Daily food intake estimated by various methods was from 3.7 to 5.6% of ... fish body weight. The amount of food consumed by E. carlsbergi during the year in the waters to the ... south of the Antarctic Convergence is about 15 times fish body weight. Resume En ete et automne ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 411–416 : Auteur(s): Gerasimova, O.V.
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Mitigation of seabird captures during hauling in CCAMLR longline fisheries
Paper Title: Mitigation of seabird captures during hauling in CCAMLR longline fisheries Abstract ... as 1994/95 when steps were taken to reduce the attraction of seabirds to vessels during the hauling ... process. Since 2003, increased efforts have been made to improve the design and performance of bird ... suggest that there are two key aspects of effective BEDs, firstly that they provide a deterrent to ... MITIGATION OF SEABIRD CAPTURES DURING HAULING IN CCAMLR LONGLINE FISHERIES E. Reid BirdLife International ... of Birds Sandy, Bedfordshire SG19 2DL United Kingdom Email – ben.sullivan@rspb.org.uk J. Clark ... the attraction of seabirds to vessels during the hauling process. Since 2003, increased efforts have ... been made to improve the design and performance of bird exclusion devices (BEDs) placed around the ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 155–162 : Auteur(s): Reid, E., B. Sullivan and J. Clark
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Length-based assessments revisited – why stock status and fishing mortality of long-lived species such as toothfish cannot be inferred from length-frequency data alone
Paper Title: Length-based assessments revisited – why stock status and fishing mortality of long ... / Description: In many of CCAMLR’s new and exploratory fisheries, stock assessment techniques are still in ... development. The failure of the tag-recapture program to provide robust assessments in many areas and doubts ... and fishing mortality from length-frequency data alone. In this paper, a number of length-based stock ... CCAMLR aims to ensure that the development of a new and exploratory fishery does not occur faster than ... the Commission is able to achieve the objectives of Article II, notably maintaining stable ... recruitment of the fished populations and minimise the risk of ecosystem changes that are not revers- ible ... over two or three decades (Constable et al., 2000). At the core of this approach are rules for ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 57–73 : Auteur(s): Ziegler, P.E., D.C. Welsford and A.J. Constable
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Areas of seabed within the 500 m isobath around Elephant Island (Subarea 48.1)
Paper Title: Areas of seabed within the 500 m isobath around Elephant Island (Subarea 48.1 ... ) Abstract / Description: Areas of seabed within 50 m depth contours to a depth of 100 m, and within 100 m ... trawl surveys around Elephant Island (the northernmost island of the South Shetland Islands) from 1977 ... AREAS OF SEABED WITHIIV THE 500 M ISOBATH AROUND ELEPHANT ISLAND (SUBAREA 48.1) K.-H. Kock and U ... , Germany Abstract Areas of seabed within 50 m depth contours to a depth of 100 m, and within 100 m ... trawl surveys around Elephant Island (the northernmost island of the South Shetland Islands) from 1977 ... las Shetland del Sur) desde 1977/78 a 1992/93. Los resultados se presentan resumidos en cuadros ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 131–135 : Auteur(s): Kock, K.-H. and U. Harm
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Review of length-weight relationships for Antarctic krill
Paper Title: Review of length-weight relationships for Antarctic krill Abstract / Description ... euphausiid species), are listed for ash-free dry weight, dry weight, and wet weight. The accuracy of length ... taken into account. The influence of seasonal changes on length-weight relationship parameters is ... discussed. Recommendations for possible uses of reviewed length-weight relationships are presented. File ... WG-KRILL-92/1S REVIEW OF LENGTH-WEIGHT RELATIONSHIPS ... weight, dry weight, and wet weight. The accuracy of length-weight relationship calculations is improved ... when information on sex and dominant maturity stages is taken into account. The influence of seasonal ... changes on length-weight relationship parameters is discussed. Recommendations for possible uses of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 145–155 : Auteur(s): Siegel, V.
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Age determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula subarea (Subarea 48.1)
Paper Title: Age determination of Notothenia gibberifrons from the South Shetland Islands ... Potter Cove, 25 De Mayo/King George I.). Samples consisted of small and medium sized fish (total length ... scale readings gave a result of one year more. This could arise from the difficulty in differentiating ... previously for specimens of South Bay, Palmer Archipelago. Possible reasons for these differences are ... WG-FSA-88/15 AGE DETERMINATION OF NOTOTHENIA ... consisted of small and medium sized fish (total length - 14.8-38 cm). Otolith and scale readings have been ... compared in 19 Potter Cove specimens. In some cases scale readings gave a result of one year more. This ... Georgia. Likewise, our values are lower than the ones reported previously for specimens of South Bay ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 143-160 : Auteur(s): Barrera-Oro, E.