Résultats de la recherche
-
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 ... continue to reduce the overall level of sea- bird mortality. The aim of this paper is to describe research ... 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 ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 155–162 : Auteur(s): Reid, E., B. Sullivan and J. Clark
-
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 ... and fishing mortality from length-frequency data alone. In this paper, a number of length-based stock ... / 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 ... this paper, a number of length-based stock assessment methods are revis- ited and some limitations in ... toothfish fish- eries as well. In this paper, the history of a number of length-based methods is revisited ... 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 ...
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
-
Telemetry monitoring of ecological resources
Paper Title: Telemetry monitoring of ecological resources Abstract / Description: Current status ... of telemetry and location monitoring are discussed. Limitations on weight, communication range and ... service life are indicated. A general description of attachment methods and their limitations is given ... monitoring using the Argos/Tiros system and satellite transmission of data are also covered. File: 24 ... analysis. This technique eliminates the step of transferring data from paper to a computer. Error checks ... - 495 - TELEMETRY MONITORING OF ECOLOGICAL RESOURCES ... V.B. Kuechle (USA) Abstract WG-CEMP-87/16 Current status of telemetry and location monitoring ... description of attachment methods and their limitations is given. Three automatic tracking system options ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 495-511 : Auteur(s): Kuechle, V.B.
-
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.
-
The survivorship of rays discarded from the South Georgia longline fishery
Paper Title: The survivorship of rays discarded from the South Georgia longline fishery Abstract ... season in Subarea 48.3. Capture depth had a consistently significant influence on the mortality of skates ... ) and the sex of rays also had some small influence on survivorship. Discard survivorship was 75% in ... the line at the sea surface, so as to maximise their chances of survival. Results from this experiment ... of this paper, only data for Raja sp. anon. has been analysed. Of a total of 95 Raja sp. anon ... (2004): 155–164 155 THE SURVIVORSHIP OF RAYS DISCARDED FROM THE SOUTH GEORGIA LONGLINE FISHERY M ... . Endicott and D.J. Agnew Renewable Resources Assessment Group Imperial College, Royal School of Mines ... season in Subarea 48.3. Capture depth had a consistently signifi cant infl uence on the mortality of ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 155–164 : Auteur(s): Endicott, M. and D.J. Agnew
-
Age and growth of Antarctic euphausiacea (crustacea) under natural conditions
Paper Title: Age and growth of Antarctic euphausiacea (crustacea) under natural conditions ... Abstract / Description: Five species of Antarctic euphausiid crustaceans were studied from the Antarctic ... regressions. No difference in growth of krill was observed between the Antarctic Peninsula area and the ... shorter life span than females, while their growth rate is similar. A short description of the life cycle ... - 369 - SC-CAMLR-VI/BG/24 AGE AND GRcwrH OF ANTARCTIC ... EUPHAUSIACEA (CRUSTACEA) UNDER NATURAL CONDITIONS* V. siegel1 (Federal Republic of Germany) Abstract ... Five species of Antarctic euphausiid crustaceans were studied from the Antarctic Peninsula and the ... difference in growth of krill was observed between the Antarctic Peninsula area and the eastern Weddell Sea ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 369-370 : Auteur(s): Siegel, V.
-
Movement and growth of tagged Dissostichus eleginoides around South Georgia and Shag Rocks (Subarea 48.3)
Paper Title: Movement and growth of tagged Dissostichus eleginoides around South Georgia and Shag ... (Dissostichus eleginoides) tagging program to investigate the spatial and temporal movement of fish and to ... date of injection and release. To date, 51 fish have been recaptured, mostly around Shag Rocks where ... there is greatest fishing activity. Most of the fish recaptured to date were tagged and released during ... (2003): 101–111 101 MOVEMENT AND GROWTH OF TAGGED DISSOSTICHUS ELEGINOIDES AROUND SOUTH GEORGIA AND ... eleginoides) tagging program to investigate the spatial and temporal movement of fi sh and to validate ... indicating the date of injection and release. To date, 51 fi sh have been recaptured, mostly around Shag ... Rocks where there is greatest fi shing activity. Most of the fi sh recaptured to date were tagged and ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 101–111 : Auteur(s): Marlow, T.R., D.J. Agnew, M.G. Purves and I. Everson
-
Target strengths of Antarctic krill (Euphausia superba)
Paper Title: Target strengths of Antarctic krill (Euphausia superba) Abstract / Description: The ... Mean Volume Backscattering Strength of encaged aggregations of swimming krill have been measured at 38 ... estimation. FAO Fish. Tech. Pap, 240: 1-249. KRISTENSEN, A. 1983. Acoustic classification of zooplankton ... theorems. J. Acoust. Soc. Am., 73: 1932-1940. FOOTE, K.G. 1986. A critique of Goddard and Welsby's paper ... SC-CAMLR-VII/BG/30 TARGET STRENGTHS OF ANTARCTIC KRILL ... Backscattering Strength of encaged aggregations of swimming krill have been measured at 38 and 120 kHz in a ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 265–279 : Auteur(s): Everson, I., D.G. Bone, J.L. Watkins and K.G. Foote
-
Age, growth and size at sexual maturity of Macrourus carinatus caught as by-catch in Australian sub-Antarctic trawl fisheries
Paper Title: Age, growth and size at sexual maturity of Macrourus carinatus caught as by-catch in ... Australian sub-Antarctic trawl fisheries Abstract / Description: Estimates of age and growth were obtained ... McDonald Islands (Division 58.5.2) in 1992 and 1993. The range of estimated ages was 4 to 25 years. There ... maturity of M. carinatus was determined from 162 specimens collected during commercial trawl fishing ... limits to ensure that these species are managed sustainably. This paper provides estimates of age and ... . 10 (2003): 139–151 139 AGE, GROWTH AND SIZE AT SEXUAL MATURITY OF MACROURUS CARINATUS CAUGHT AS ... – esmee.vanwijk@aad.gov.au Abstract Estimates of age and growth were obtained from 156 Macrourus carinatus ... 1992 and 1993. The range of estimated ages was 4 to 25 years. There were no signifi cant differences ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 139–151 : Auteur(s): van Wijk, E.M., R. Williams and A.J. Constable
-
Book review – Biogeographic Atlas of the Southern Ocean
Paper Title: Book review – Biogeographic Atlas of the Southern Ocean Abstract / Description ... : This is a review of De Broyer, C., P. Koubbi, H.J. Griffiths, B. Raymond, C. Udekem d’Acoz, A.P. Van de ... -Coudert (Eds). 2014. Biogeographic Atlas of the Southern Ocean. Scientific Committee on Antarctic Research ... , Cambridge, CB2 1ER, United Kingdom (www.scar.org). Over the past few decades the field of biogeo graphy ... increasing data availability, is enhancing our understanding of how species and ecosystems are distributed ... frontier of discovery, with many parts of it largely unexplored, but the recently published Biogeo ... - graphic Atlas of the Southern Ocean (De Broyer et al., 2014) has drawn on the richest source of ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 45-46 : Auteur(s): Reid, K.