Résultats de la recherche

1. A study of UK and Russian surveys using acoustics to augment trawling methods in shelf waters off South Georgia (Subarea 48.3)

   Abstract:  In 2001/2002 Russian and UK vessels undertook surveys for icefish at South Georgia ... differences in the gear used and how much was due to natural spatial/temporal variability of the stock. The ... portion of icefish biomass was located in the water column. Thus the traditional approach of using bottom ... trawls to assess icefish standing stock has resulted in biased estimates below the true value: acoustic ...

   Meeting Document : WG-FSA-02/56 : Auteur(s): S. Kasatkina, P. Gasyukov (Russia), C. Goss, I. Everson, M. Belchier, T. Marlow, A. North and M. Collins (United Kingdom)

2. Marine pollutants and fishing gear associated with seabirds at sub Antarctic Marion Island, 1996–1998: trends in relation to longline fishing activity

   found during the second year. This increase in fishing gear from 1996/97 to 1997/98 is interesting in ... Abstract:  Pollutants found in association with seabirds at subantarctic Marion Island for the ... toothfish in blastfreezers and 23 toothfish hooks were found. All the rope nooses, and 19 of the-books were ... Petrel, and a Subantarctic Skua) were found entangled in fishing gear, while five seabird carcasses ...

   Meeting Document : CCAMLR-XVII/BG/26 : Auteur(s): Delegation of South Africa

3. LENGTH-BASED ASSESSMENT FOR MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) IN SUB-AREA 48.3

   ) in sub‐area 48.3 employs the CMIX and GYM packages, which derives population numbers‐at‐age and ... projects these numbers forward under the given harvest control rule to set a two‐year TAC. One issue is the ... accurate identification of age cohorts from the survey data. In this paper we describe a length‐based ... the survey data which, in conjunction with the bootstrapped survey biomass data, yields an estimate of ...

   Meeting Document : WG-FSA-09/27 : Auteur(s): R.M. Hillary (Australia), C.T.T. Edwards, R.E. Mitchel and D.J. Agnew (United Kingdom)

4. Research plan for the Spanish exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2: Update of stage 2 (2013/14 season) and preliminary results of stage 1 (2012/13 season) according to WG-SAM advice

   longline fishery for Dissostichus spp in Divisions 58.4.1 and 58.4.2, submitted to the XXXII-WG-SAM, taking ... research plan in the 2012/13 season using the Spanish bottom longline system. One depletion experiments was ... completed in each of the SSRU surveyed (58.4.1H and 58.4.1G). Three prospecting-phase clusters of sets did ... analysis of relevant sea-ice conditions in the last 11 seasons in these areas along with a summary of the ...

   Meeting Document : WG-FSA-13/15 : Auteur(s): R. Sarralde, L.J López Abellán and S. Barreiro (Spain)

5. Updating the 2017 stock assessment of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region

   88.2AB) will be updated in 2017. The introduction of CM 91-05 (the Ross Sea region Marine Protected Area ... ) will require modifications to the previous method the estimation of catch splits in the calculation of ... precautionary yields. In addition, work will need to be carried out in the longer term that consider how the ... assessment will need to be modified to respond to changes in the fishing catch and effort distributions that ...

   Meeting Document : WG-SAM-17/41 : Auteur(s): S. Mormede and S. Parker

6. Update on work to estimate krill consumption by flying seabirds in CCAMLR Divisions 58.4.1 and 58.4.2

   petrel, Cape petrel, southern fulmar, snow petrel and Wilson’s storm petrel) in Divisions 58.4.1 and ... 58.4.2. We compiled information on the historical search effort in potential seabird breeding habitat in ... . This work is an important contribution to estimating krill consumption by predators in Divisions 58.4.1 ... predator groups in the region including pack-ice seals and Adelie penguins and will contribute to ...

   Meeting Document : WG-EMM-17/11 : Auteur(s): C. Southwell and L. Emmerson

7. Spatial variation in Antarctic toothfish (Dissostichus mawsoni) catch rate, mean weight, maturity stage and sex ratio across Divisions 58.4.1, 58.4.2 and 58.4.3b

   mawsoni) have been operating in Divisions 58.4.1 and 58.4.2 since 2003, however robust stock assessments ... and catch limits according to CCAMLR decision rules have yet to be developed. A key step in developing ... management advice in these Divisions is understanding the distribution, abundance and boundaries of the ... . mawsoni, including in adjacent Division 58.4.3b. Spatial heterogeneity in catch composition indicated that ...

   Meeting Document : WG-FSA-17/16 : Auteur(s): P. Yates, P. Ziegler, P. Burch, D. Maschette, D. Welsford and S. Wotherspoon

8. Integrated analyses of circumpolar climate interactions and ecosystem dynamics in the Southern Ocean (ICED)

   Abstract:  ICED is a multidisciplinary, international initiative recently launched in response to ... in the Southern Ocean, the implications for ecosystem dynamics, the impacts on biogeochemical cycles ... , and the development of management procedures. CCAMLR community scientists have been instrumental in ... community in order to maximise the impact of science on the management of Southern Ocean ecosystems. Author ...

   Meeting Document : WG-EMM-06/26 : Auteur(s): E.J. Murphy (United Kingdom), E. Hofmann (USA) and R. Cavanagh (United Kindom)

9. A GIS tool to assist in the planning and design of sample surveys of the abundance of colonial breeding species

   Abstract:  A GIS tool to assist in the planning and designing of surveys of colonial breeding ... developed to implement more complex and efficient designs. An example of its potential use is provided. In ... the example the tool is used to sample a population of Adelie penguins in the Holme Bay region of East ... Antarctica as might occur in a real a pilot survey, and the resulting sample densities used to predict the ...

   Meeting Document : WG-EMM-05/25 : Auteur(s): C. Southwell, R. Dreissen, S. Candy, G. McPherson and J. Clarke (Australia)

10. Beached birds: a guide used by north pacific groundfish observers to identify seabirds incidentally caught in fisheries

    Abstract:  In the fall of 2002, the U.S. National Marine Fisheries Service (NMFS) purchased 300 ... vessels in the Bering Sea and Gulf of Alaska. This new guide replaces a dichotomous key on looseleaf paper ... of fishery observers to accurately identify seabirds as they come up in the sampled fishing gear ... collection at the NMFS North Pacific Groundfish Observer Program. A copy of Beached Birds is available in the ...

    Meeting Document : WG-FSA-03/24 : Auteur(s): T. Hass and S. Davis (USA)

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