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1. Estimating unaccounted fishing mortality in the Ross Sea region and Amundsen Sea (CCAMLR Subareas 88.1 and 88.2) bottom longline fisheries targeting Antarctic toothfish

   / Description:  Stock assessments rely on estimates of total mortality resulting from fishing activities ... counted in estimates of total fishing removals or otherwise accounted for in stock assessment models. The ... mortality resulting from the loss of sections of bottom longline gear in the Ross Sea region and Subarea ... average 208 tonnes of Antarctic toothfish mortality may be unaccounted for annually. While the current ... , the purpose of this paper is to: (i) characterise bottom longline gear loss in the Ross Sea and ... Stock assessments rely on estimates of the total mortality resulting from fishing activities. While ... the loss of sections of bottom longline gear in the Ross Sea region and Subarea 88.2 Antarc- tic ... fishing gear is known to have a variety of impacts on marine ecosystems, including the con- tinued catch ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 17–30 : Auteur(s): Webber, D.N. and S.J. Parker

2. Trawl bag selectivity in the Champsocephalus gunnari fishery

   :  Experiments on trawl bag selectivity during fishing on pre-spawning concentrations of Champsocephalus gunnari ... were carried out in June 1990 in the South Georgia area concurrently with trawl surveys as part of the ... and the selectivity factor was 3.10 for a mesh size of 80 mm. Comparison of these results with results ... cm) as well as earlier sexual maturation of fish were noted. It was suggested that the use of Polish ... selectivity during fishing on pre-spawning concentrations of ChampsocephaZus gunnari were carried out in June ... 1990 in the South Georgia area concurrently with trawl surveys as part of the main biological and ... was 3.10 for a mesh size of 80 mm. Comparison of these results with results from previous years ... sexual maturation of fish were noted. It was suggested that the use of Polish type chafers and a ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 295–312 : Auteur(s): Bidenko, V.G. and I.G. Istomin

3. Additional data on anti-Brucella antibodies in Arctocephalus gazella from Cape Shirreff, Livingston Island, Antarctica

   Shirreff, Livingston Island, Antarctica Abstract / Description:  The first instance of anti-Brucella ... detected in one sample with the RB test, and in five of the 86 samples (5.8%) using the c-ELISA test. These ... results present serological evidence of Brucella infection in A. gazella. We suggest the utility of extra ... marine mammals. We highlight the importance of evaluating in the CCAMLR Working Group on Ecosystem ... instance of anti-Bvz~celln antibodies in the Southern Hemisphere was recorded in two pinniped species from ... Bvucelln spp. were detected in one sample with the RB test, and in five of the 86 samples (5.8%) using the ... c-ELISA test. These results present serological evidence of Brzrcelln infection in A. gnzelln. We ... suggest the utility of extra-vascular fluid for this serological research. We recognise the c-ELISA test ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 147–154 : Auteur(s): Blank, O., P. Retamal, P. Abalos and D. Torres

4. The gentoo penguin as a candidate species for the CCAMLR Ecosystem Monitoring Program

   Regions (ISRs) of the CCAMLR Ecosystem Monitoring Program), we suggest (and provide a full bibliography of ... in the CEMP. The extensive dependence of this species in these ISRs on Euphausia superba, (including ... in winter), its residence in the ISRs in winter and its early attainment of sexual maturity are all ... features of special relevance to the CEMP. File:  30-Croxall-and-Williams.pdf ... at the South Shetland Islands (both within Integrated Study Regions (ISRS) of the CCAMLR Ecosystem ... Monitoring Program), we suggest (and provide a full bibliography of supporting literature) that the gentoo ... dependence of this species in these ISRs on Euphausia superba, (including in winter), its residence in the ... ISRs in winter and its early attainment of sexual maturity are all features of special relevance to ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 483–488 : Auteur(s): Croxall, J.P. and T.D. Williams

5. Seabird interactions with trawl and longline fisheries for Dissostichus eleginoides and Champsocephalus gunnari

   and Champsocephalus gunnari Abstract / Description:  The behaviour of seabirds and the rate of ... trawlers was of white-chinned petrels, with a lesser mortality of albatross species. Mortality rates ... , probably because the birds at the former site are distracted from the longlines by the discharge of offal ... from the side of the vessel opposite to where the longline is set.   File:  06williams-capdeville.pdf ... of seabirds and the rate of incidental mortality were observed during commercial trawling operations ... associated with both longliners and trawlers was of white-chinned petrels, with a lesser mortality of ... longlines by the discharge of offal from the side of the vessel opposite to where the longline is set. Le ... same period with catches taken by a mixture of longlining (12%) and trawling (88%). A trawl fishery ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 93–99 : Auteur(s): Williams, R. and D. Capdeville

6. Some thoughts on precautionary measures for the krill fishery

   :  The concept of precautionary measures for krill is discussed. A precautionary catch limit, based on ... takes account of the requirements of land-based predators. Implementation of the approach is discussed ... and the question of how the method relates to the current CCAMLR Ecosystem Monitoring Program (CEMP ... Paper Title:  Some thoughts on precautionary measures for the krill fishery Abstract / Description ... tonnes (this paper), a natural mortality rate of 0.6 (Butterworth et al., 1992) with variance 0.1 and a ... Ecosystem Monitoring and Management (WG-EMM) (SC-CAMLR, 1995). In the notation of this paper, the WG-EMM ... paper ideally requires information from as many colonies as possible. The number of pairs within each ... behind the development of the approach presented in this paper was to indicate precautionary catch ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 1–11 : Auteur(s): Everson, I. and W.K. de la Mare

7. Refinements to the strategy for managing depleted fish stocks based on CCAMLR objectives

   objectives Abstract / Description:  A method of calculating fishing mortalities which will allow depleted ... decades is illustrated. These fishing mortalities are based on probabilistic descriptions of the future ... states of a depleted stock, and take into account uncertainty in assessments. Sample calculations show ... that applying a policy of F 0.1 will not always lead to stock recovery in two to three decades, and ... ). The studies in this paper explore an approach to calculating values of fishing mortality (F) which ... the calculations presented in this paper will require the development of a more sophisticated ... A method of calculating fishing mortalities which will allow depleted fish stocks to recover to ... fishing mortalities are based on probabilistic descriptions of the future states of a depleted stock ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 467–475 : Auteur(s): de la Mare, W.K. and A. Constable

8. Do krill and salps compete? Contrary evidence from the krill fisheries

   Peninsula. Interannual and seasonal variability of the timing, duration and intensity of salp blooms and the ... presence of green krill were analysed. No relationship between salp density and the proportion of green ... area, the proportion of green krill was high only when salp density was extremely low. However, no ... Paper Title:  Do krill and salps compete? Contrary evidence from the krill fisheries Abstract ... phytoplankton available to krill. In this paper, we provide the results of an analysis of seasonal and ... National Research Institute of Far Seas Fisheries 5-7-1 Orido, Shimizu, Shizuoka, Japan 424 W. K. de la ... . Interannual and seasonal variability of the timing, duration and intensity of salp blooms and the presence of ... green krill were analysed. No relationship between salp density and the proportion of green krill in ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 205–216 : Auteur(s): Kawaguchi, S., T. Ichii, M. Naganobu and W.K. de la Mare

9. Low genetic diversity in the Antarctic toothfish (Dissostichus mawsoni) observed with mitochondrial and intron DNA markers

   digests of nine sub-regions of the mitochondrial genome. Polymorphisms were found in four of seven introns ... areas. Direct sequencing of cytochrome b (665 bp) and the left domain of the control region (639 bp ... Paper Title:  Low genetic diversity in the Antarctic toothfish (Dissostichus mawsoni) observed ... ) OBSERVED WITH MITOCHONDRIAL AND INTRON DNA MARKERS P.J. Smith National Institute of Water and ... P.M. Gaffney College of Marine Studies University of Delaware Lewes, DE 19958, USA Abstract Two ... detected with restriction enzyme digests of nine sub-regions of the mitochondrial genome. Polymorphisms ... were found in four of seven introns digested with the restriction enzymes, but there was no population ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 43–51 : Auteur(s): Smith, P.J. and P.M. Gaffney

10. Potential nursery areas for fish in the Prydz Bay region

    for the shelf area of the Bay to be a nursery ground for nototheniid and channichthyid fish. Nearly ... break. The dominant size class was of 45 mm standard length, which corresponds to an age of 1 ... of the shelf. Although no specific nursery grounds were identified, the whole of the Prydz Bay shelf ... Paper Title:  Potential nursery areas for fish in the Prydz Bay region Abstract / Description:  A ... in January/February 1991 indicated the potential for the shelf area of the Bay to be a nursery ... were caught in a 30 minute haul) especially near the shelf break. The dominant size class was of 45 mm ... standard length, which corresponds to an age of 1+. Nototheniids and channichthyid juveniles were much ... less common, and were found in the central and western parts of the shelf. Although no specific ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 369–380 : Auteur(s): Williams, R.

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