Résultats de la recherche

1. Trends in relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in trammel net catches at Potter Cove, South Shetland Islands

   area in the late 1970s. This interpretation is consistent with the information on the historical ... offshore commercial fishing and with the results of scientific surveys in the area. Author(s):  E. Barrera ... has continued in Potter Cove from 1991 to 1998, covering a continuous sampling period of 15 years and ... . rossii and G. gibberifrons in the last 15 years is the effect of the offshore commercial fishery in the ...

   Meeting Document : WG-FSA-98/57 : Auteur(s): E. Barrera-Oro, E.R. Marschoff and R.J. Casaux (Argentina)

2. Long-term study of the at-sea distribution of seabirds and marine mammals in the Scotia Sea, Antarctica

   miles with 1100 ten-min counts. Among birds, six species of Procellariiformes were abundant: Black ... ). Annual dissimilarity in abundance of both birds and cetaceans occurred in conjunction with changes in sea ... -bellied Storm Petrel. Antarctic Prion was the dominant species within the 5 years whereas Cape petrel ... encounter rate in the five years (0.29 ± 1.57 whale/nautical mile), followed by Humpback whale (0.09 ± 0.54 ...

   Meeting Document : WG-EMM-14/06 Rev. 1 : Auteur(s): J.L. Orgeira, M. Alderete, Y.G. Jiménez and J.C. González (Argentina)

3. Relative selectivity of four sampling methods using traps and trawls for male snow crabs (Chionoecetes opilio)

   size of the crabs caught increased with depth for all sampling methods, but especially so for traps ... ; and 5) catch per unit effort for both large- and small-clawed crabs increased with depth for all ... methods. These methods were: (1) large-meshed commercial traps, (2) small-meshed traps, (3) bottom trawl ... small-clawed animals predominated in the trawl catches; 3) soft-shell crabs were more common in trawl ...

   Meeting Document : WS-CRAB-93/11 : Auteur(s): J.M. Hoenig and E.G. Dawe (USA)

4. Revised research program of Ukraine in Subarea 48.1 in 2018

   longline in the eastern part of Subarea 48.1. Author(s):  Delegation of Ukraine Title:  Revised research ...

   Meeting Document : WG-FSA-17/32 : Auteur(s): Delegation of Ukraine

5. Population dynamics of black-browed and grey-headed albatrosses Diomedea melanophrys and D. chrysostoma at Campbell Island, New Zealand, 1942–96

   success (0.663 compared with 0.397 for the latter species) and are annual breeders where as Grey-headed ... region. The steep decline of Black-browed Albatross numbers in the 1970s was concomitant with the ... increase in numbers is due to high adult survival rates and breeding success, and is coincident with a ... great reduction in long-line fishing. With stable and high adult survival rates, it is expected that ...

   Meeting Document : WG-FSA-04/58 : Auteur(s): S.M. Waugh (New Zealand), H. Weimerskirch (France), P.J. Moore and P.M. Sagar (New Zealand)

6. Mackerel icefish ecological indices

   CEMP. With that in mind the following indices are outlined that might be incorporated in the programme ... Abstract:  Mackerel icefish have been harvested in the CCAMLR Region for over thirty years. In the ... : Standing Stock, Cohort Strength and Recruitment, Natural Mortality, Length at Age 1+ and 2+ years ...

   Meeting Document : WG-EMM-03/42 : Auteur(s): I. Everson (United Kingdom), K.-H. Kock (Germany) and A.W. North (United Kingdom)

7. Plan of research program of the Ukraine in Subarea 48.1 in 2019

   longline in the eastern part of Subarea 48.1. Author(s):  Delegation of Ukraine Title:  Plan of research ...

   Meeting Document : WG-SAM-18/11 : Auteur(s): Delegation of Ukraine

8. The Continuous Plankton Recorder in the Southern Ocean: a comparative analysis of zooplankton communities sampled by the CPR and vertical net hauls along 140°E

   deployed on the northern leg (average sampling depth = 10.5 m). Both net systems were harnessed with 270?m ... patterns. Species richness and diversity increased with depth, and were lowest for CPR samples. Conversely ... , dominance decreased with depth and was highest for CPR samples. Evenness was similar for all sample groups ... to its shallow towing depth, the CPR focuses on species with surface distributions. Despite under ...

   Meeting Document : WS-BSO-07/P5 : Auteur(s): Hunt, B.P.V and G. Hosie

9. Depletion-corrected average catch: a simple formula for estimating sustainable yields in data-poor situations

   yield component and an unsustainable “windfall” component associated with a one-time reduction in stock ... biomass. The size of the windfall is expressed as being equivalent to a number of years of sustainable ... sum of the number of years in the catch series and this windfall ratio. Input information includes the ... sum of catches and associated number of years, the relative reduction in biomass during that period ...

   Meeting Document : WG-SAM-11/P3 : Auteur(s): A.D. McCall

10. Diet composition and observations on reproduction of Champsocephalus gunnari in Subarea 48.3 in March/April 1996, Dr Eduardo Holmberg survey

    which may be related with a large availability of food (= krill). It is suggested that krill was present ... items, known as an important alternative food in years of krill scarcity, were ingested only ... higher than those reported for the 1991 and 1994 years of krill shortage. The analysis of the ovarian ... in the region in levels equivalent to the historical years of high abundance. Author(s):  Marschoff ...

    Meeting Document : WG-FSA-96/28 Rev. 1 : Auteur(s): Marschoff, E., Barrera-Oro, E., Casaux, R.

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