Resultados de la búsqueda

1. Reproduction in Antarctic notothenioid fish - a review

   % at spawning. Apart from a few nototheniid species the GSI of males is much less and typi6dlly only 15 ... –20% of that of females. Length at first spawning may be from 55% of Lmax onwards, but in many species ... at South Georgia which may begin spawning at about 40% of Lnax. Most species of the Seasonal Pack-ice ... although spawning is likely to take place annually. However, part of the populations of Champsocephalus ...

   Meeting Document : SC-CAMLR-X/BG/12 : Autor(es): Delegation of Germany

2. Assessment models for Patagonian toothfish in research block 58.4.4b_1 (SSRU 58.4.4bC) for the years 1990-2014

   at the estimates of OB_1b model, use of knife edge selectivity at fixed 8 year for disease mortality ... tagging data (OB_1b_notag model) and 5) removal of age observations, and fix of both selectivitties at the ... Abstract:  We made five sensitive runs of single-sex age-structured CASAL models for stock status ... assessments of Dissostichus eleginoides in the research block 58.4.4b_1 following the recommendation of the WG ...

   Meeting Document : WG-SAM-15/25 : Autor(es): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)

3. Report on the CCAMLR marine debris monitoring program

   bands found at King George Island. Overall, the amount of debris in colonies of grey-headed albatrosses ... number of marine mammal entanglements has remained relatively constant at Bird Island but continues to ... . Non-fishing items such as plastics, packaging materials and wood remain the most common type of debris ... , wandering albatrosses and black-browed albatrosses at Bird Island continues to decrease, with the major ...

   Meeting Document : WG-FSA-14/68 : Autor(es): Secretariat

4. Downward adjustments to local catch limits for the krill fishery in Subarea 48.1

   monitor, with remote cameras, the mean ages at crèche of Adélie, chinstrap, and gentoo penguins at ... collected by this camera network, and camera-based estimates of age at crèche are on par with those based on ... refer to a catch limit that applies to a group of SSMUs (gSSMU), and the work presented here is based on ... the gSSMUs defined in another compilation of vignettes (AERD 2016a, pp. 3-13).  We propose downward ...

   Meeting Document : WG-EMM-16/46 : Autor(es): Antarctic Ecosystem Research Division, Southwest Fisheries Science Center and NOAA Fisheries

5. Beach debris survey Signy Island, South Orkney Islands, 1998/99

   of debris at sea. Author(s):  Delegation of the United Kingdom Title:  Beach debris survey Signy ... Abstract:  The ninth annual beach debris survey was carried out at Signy Island, South Orkney ... categories. A total of 83 items weighing 12.96 kg was collected. The number of items recovered was the ... highest since 1996/97 and showed an increase of 86% compared to the previous year. The total mass of items ...

   Meeting Document : CCAMLR-XVIII/BG/7 : Autor(es): Delegation of the United Kingdom

6. Revised research plan for the exploratory fisheries for Dissostichus spp. in Division 58.4.3a in 2014/15

   and recaptured only at the western end of the block, as pointed out at the last WG-FSA meeting ... Abstract:  In this document, we revised stock status assessments of D. eleginoides in research ... blocks 5843a_1 using CPUE analogy method, Petersen method and CASAL model, although the tagging data of ... number of tag recaptures from the estimated stock sizes using the Petersen and CASAL methods was ...

   Meeting Document : WG-FSA-14/20 : Autor(es): Delegation of Japan

7. Maturity stages for skates (Rajiformes)

   -laying. Additionally, the current description of females at stage 2 (maturing) in the CCAMLR observer ... a four-stage key that allows for the collection of data for fish that are at active stages of the ... , important elements of the reproductive cycle may go unrecorded, including females in the process of egg ... manual could lead to some confusion between fish at stage 2 and stage 3 (mature). Suggestions for ...

   Meeting Document : CCAMLR-XXXIII/03 : Autor(es): J. R. Ellis, S.R. McCully Phillips and V. Laptivovsky (United Kingdom)

8. Maturity stages for skates (Rajiformes)

   -laying. Additionally, the current description of females at stage 2 (maturing) in the CCAMLR observer ... a four-stage key that allows for the collection of data for fish that are at active stages of the ... , important elements of the reproductive cycle may go unrecorded, including females in the process of egg ... manual could lead to some confusion between fish at stage 2 and stage 3 (mature). Suggestions for ...

   Meeting Document : WG-FSA-14/33 : Autor(es): J.R. Ellis, S.R. McCully Phillips and V. Laptivovsky (United Kingdom)

9. Research plan for the exploratory fisheries for Dissostichus spp. in Division 58.4.2 in 2014/15

   the latest CCAMLR C2 and observer data toward the development of research plan for the 2014/15 ... exploratory fishery of Dissostichus mawsoni in Subarea 58.4.2. The stock size for a research block (5842_1 ... the CPUE method recommended at the last WG-FSA meeting. As we proposed at the WG-FSA meeting last year ... to estimate appropriate catch limit, we propose to continue the current research operation for at ...

   Meeting Document : WG-SAM-14/03 : Autor(es): Delegation of Japan

10. Results from the groundfish survey conducted in CCAMLR Subarea 48.3 in January/February 2011

    Abstract:  The 2011 groundfish survey took place at South Georgia and Shag Rocks on the FV Sil ... the shelf. Catch-weighted length frequencies of mackerel icefish indicated that 3+ sized fish ... dominated at Shag Rocks, however 1+ and 2+ sized fish were present in larger proportions at South Georgia. A ... mean biomass of 49,353 tonnes was estimated for mackerel icefish, with a lower 1-sided 95% CL of 31,373 ...

    Meeting Document : WG-FSA-11/29 : Autor(es): J. Brown, S. Gregory, K. Brigden, R. Benedet, O. Hogg, P. Brewin and L. Featherstone (United Kingdom)

Páginas