Résultats de la recherche
-
Population demography of Antarctic fur seals: the costs of reproduction and implications for life-histories
age, after accounting for variation due to pregnancy and calendar year. Survival was reduced as a ... population size. 4. There was no evidence of senescence. Survival rate was not related to year of birth or ... animals having been pregnant in the previous year. 6. Reproduction incurs costs to females, in terms of ... age classes with the highest reproductive output (ages 5-8 years). 5. Mean pregnancy rate was 0•70 (SD ...
Meeting Document : WG-EMM-95/26 : Auteur(s): Reid, K., Croxall, J.P., Lunn, N.J., Boyd, I.L.
-
Preliminary results on the observations of cetaceans in the CCAMLR Statistical Subareas 48.1 and 48.2
vessel More Sodruzhestva. Observations were made during December 2018 – to January 2019 in Subareas 48.1 ... . Author(s): K. Vishnyakova and L. Pshenichnov Title: Preliminary results on the observations of ...
Meeting Document : WG-EMM-2019/35 Rev. 1 : Auteur(s): K. Vishnyakova and L. Pshenichnov
-
Exploring variability in the locations used by the krill fishery in Area 48 in relation to intra- and inter-annual variability in seasonal sea ice
their behaviour, targeting fixed geographic locations in most years. In contrast, in Subarea 48.1 ... , fishing locations show considerable variability between years. In Subarea 48.2 ice cover tends to increase ... location in Subarea 48.1 has shifted in recent years with most catch being taken south of the South ... Shetland Islands since 2008/09 in contrast to earlier years when the mean catch location was always to the ...
Meeting Document : WG-EMM-14/11 : Auteur(s): J. Silk, S.L. Hill and P.N. Trathan (United Kingdom)
-
Report of informal group of CCAMLR Members dealing with the application for observer status by ASOC and Greenpeace
Title: Report of informal group of CCAMLR Members dealing with the application for observer status by ASOC and Greenpeace Approval: Approved
Meeting Document : CCAMLR-V/20
-
Feasibility of trawl surveys to estimate abundance of juvenile toothfish in Subarea 88.1
years. Author(s): Wood, B.A., ODriscoll, R.L., Hanchet, S.M. Title: Feasibility of trawl surveys to ... average over the last three years, 63% of the seabed area from 0–600 m depth was not fishable in January ... –February because of ice. Ice cover varied greatly between years, with the untrawlable area ranging from 31 ...
Meeting Document : WG-FSA-SAM-04/07 : Auteur(s): Wood, B.A., ODriscoll, R.L., Hanchet, S.M.
-
Fishery monitoring and closure procedures
interpretation and application of procedures to monitor and forecast closures in CCAMLR fisheries in the 2018/19 ... and under-runs in certain circumstances are examined. Author(s): CCAMLR Secretariat Title: Fishery ...
Meeting Document : CCAMLR-38/BG/12 : Auteur(s): CCAMLR Secretariat
-
Age estimation and maturity of the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea
reduced probit model. Author(s): P.M. Marriott, M.J. Manning and P.L. Horn (New Zealand) Title: Age ... purpose of analyzing the otoliths to generate more accurate age estimates for this species. Intensive ... results finding no significant differences between the years. Von Bertalanffy parameters for the pooled ... 0.159 for females. Revised estimates of the mean total length–at– maturity (38.8cm, 46.4cm) and mean age ...
Meeting Document : WG-FSA-05/20 : Auteur(s): P.M. Marriott, M.J. Manning and P.L. Horn (New Zealand)
-
Variability of krill fishery operations in Subarea 48.2 in relation to fishing methods: spatial–temporal distribution of CPUE and of fishing efforts
values of standardized CPUE indices in the Subarea 48.2 for the last 25 years. The paper provides the ... fishing methods. It was shown how fishery operated by years and month in each SSMUs with special attention ... locations was consistent between years and fishing methods. All national fleets preferred SSMU SOW. However ... onboard krill fishing vessels should be the sources of this information. Author(s): S. Kasatkina ...
Meeting Document : WG-EMM-14/22 : Auteur(s): S. Kasatkina (Russia)
-
The distribution pattern and fishery for the Antarctic krill (Euphausia superba) off the Wilkes Land and Balleny Islands (with notes on the application of CPUE data as indices of krill abundance)
obtained aboard the Soviet trawler “Kapitan Oleinichuck". The waters off the Terre d039;Adelie (130 ... in the krill concentrations. Author(s): V.N. Dolzhenkov, E.A. Kovalev, V.A. Spiridonov, V.P. Timonin ...
Meeting Document : WG-KRILL-90/16 : Auteur(s): V.N. Dolzhenkov, E.A. Kovalev, V.A. Spiridonov, V.P. Timonin, I.A. Zhigalov (USSR)
-
Summary of Ross Sea skate tagging programme results
years, and 47 (0.5%) have been recaptured. The recapture of tagged Amblyraja georgiana after up to four ... years at liberty shows that some skates survive and recover from being hauled out of depths of around ... georgiana moved very little, even after four years at liberty. There was no movement between SSRUs, and the ... movements along depth contours. Author(s): S.L. Ballara, A. Dunn and M.P. Francis (New Zealand) Title ...
Meeting Document : WG-FSA-06/32 : Auteur(s): S.L. Ballara, A. Dunn and M.P. Francis (New Zealand)