Resultados de la búsqueda
-
The toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2002/03: New Zealand vessel summary
part of the 2002–03 CCAMLR split fishing year), and to compare these results with previous years. Note ... toward depths greater than 1000 m in the later years. Length frequency data for Macrourus whitsoni from ... converted to catch-at-age. Fish aged from 13 to 30 years dominated the catch. No progressions of any ... particularly strong or weak year classes were apparent throughout the time series. Length and age of Antarctic ...
Meeting Document : WG-FSA-03/44 : Autor(es): M.L. Stevenson, S.M. Hanchet and P.L. Horn (New Zealand)
-
Proposal for a research plan for the exploratory longline fishery for Dissostichus spp. in 2014/15 in Division 58.4.4
, Shinsei maru No. 3, has conducted research fishing in accordance with a research plan submitted under CM ... 24-01. France notifies its wish to collaborate in this research fishery over the coming years in ... estimate derived from tagging data are proposed. The CASAL model structure is improved with three scenarios ... tested 1/ base case model without IUU catch; 2/ including 22% of IUU catch supposed in Division 58.4.4; 3 ...
Meeting Document : WG-SAM-14/18 : Autor(es): Delegation of France
-
Comparative biological characteristics of Electrona carlsbergi (Tåning) (Myctophidae) from the notal and Antarctic areas in the Southern Ocean Atlantic sector
reached 103 mm. Fish from older age groups (3 and 4 yr old) constituted about 85% of total amount, with ... somewhat higher,with the highest increment being observed at the 1st and 2nd years of life. Limiting age ... analysed were at age 2 to the west of 35°W and 3 yr old specimens, the portion of which made up to 40% in ... for fish from the notal area is, probably, 5 years. E. carlsbergi investigated in the Antarctic waters ...
Meeting Document : WG-FSA-90/21 : Autor(es): K.V. Gorchinsky, V.M. Kiseleva and A.A. Filin (USSR)
-
Modelling egg and larval transport of Antarctic Toothfish (Dissostichus mawsoni) in the East Antarctic region: Plan
and difficulties of in situ observations, life cycle with their spatial and temporal distribution is ... yet to be fully understood. Especially in early life stage, the process of successful egg/larval ... more than 10 years unique satellite product data and ocean model output data. This work examines not ...
Meeting Document : WG-SAM-2019/20 : Autor(es): M. Mori, K. Mizobata, T. Okuda and T. Ichii
-
Krill population dynamics at South Georgia 1991–1997, based on data from predators and nets
scientific nets from the same area over the summers of 1991-1997. In comparing the 5 years with both predator ... biomass in the following year. Similar recruitment failure in the same years is evident in krill ... ) of 3 predator species breeding at South Georgia and 12 weeks of sampling (n = 10 252 krill) from ... sampling the same overall krill population. Greatest similarity results from comparing net samples with ...
Meeting Document : WS-AREA 48-98/15 : Autor(es): K. Reid, J. Watkins, J. Croxall and E. Murphy (UK)
-
Acoustic estimates of krill abundance at South Georgia, 1981–1998
north-eastern and north-western ends of South Georgia. In four of these years biomass was higher to the ... of the years between 1990 and 1998 it was possible to calculate separate biomass estimates for the ... fluctuated widely from year to year over this time, ranging from?2 to? 150 gm-2 (wet weight). The 1982, 1991 ...
Meeting Document : WS-AREA 48-98/9 : Autor(es): A.S. Brierley, J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson (UK)
-
The recent decline in recruitment of Gobionotothen gibberifrons in the South Shetland Islands (CCAMLR Subarea 48.1)
extent Antarctic fish stocks recover from exploitation and how natural causes may add to man-made ... caused a number of years of very low recruitment around Elephant Island and the lower South Shetland ...
Meeting Document : WG-FSA-12/20 : Autor(es): K.-H. Kock (Germany) and C.D. Jones (USA)
-
Short note: time series of Drake Passage Oscillation Index (DPOI) from 1952 to 1988
generally observed for around 3 years except 6 years between 1958 and 1964. Author(s): M. Naganobu and K ... Abstract: Naganobu et al. (1999) had assessed variability in krill recruitment and density with ... from 1952 to 1988. A time series of 3-month running mean suggested considerable seasonal variability of ... . A low DPOI less than 10 hPa appeared in 1967 and 1980. Intervals between the years of low DPOI were ...
Meeting Document : WG-EMM-02/44 : Autor(es): M. Naganobu and K. Kutsuwada (Japan)
-
Pup production and distribution of breeding Antarctic fur seals (Arctocephalus gazella) at South Georgia
at the breeding grounds during the pupping period, together with corrections for the likelihood of a ... in the 1950s and 1960s. Increased population size has led to an expansion of the breeding range at ... sites were used to estimate the pup production of the population had 1990/91 been a typical year. Based ... ) if it had been an average year. The annual increase from 1976/17 to 1990/91 was 9.8% which shows that ...
Meeting Document : WG-CEMP-92/39 : Autor(es): I.L. Boyd (United Kingdom)
-
ANTARCTIC PENINSULA DECADAL WINTER TEMPERATURE ANOMALIES AND ANTARCTIC KRILL VARIABILITY IN THE SOUTH ATLANTIC REGION: PRELIMINARY RESULTS
the oscillations with 3-8 year periods and a decadal oscillation with a period of about 16 years ... significantly to 0.4 when applying 1-year data shift (krill density after anomalies occurrence). The 3-8 year ... . Preliminary analysis of Antarctic krill density variations shows about 8-year variability as well. Correlation ...
Meeting Document : WG-EMM-11/41 : Autor(es): G.P. Milinevsky, A.V. Grytsai and L.K. Pshenichnov (Ukraine)