Search results
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A CHARACTERISATION OF THE TOOTHFISH FISHERY IN SUBAREAS 88.1 AND 88.2 FROM 1997–98 TO 2007–08
for eleven years in Subarea 88.1 and for six years in Subarea 88.2. This report summarises the large amount ... of the SSRUs within the two subareas was changed for the 2006 season as part of a 3-year experiment (SC-CAMLR ... are caught in some years (e.g., on the Shelf in 1999 and 2001), these year classes are not seen in large ... numbers in later years in the fishery. So at this stage there is no evidence for strong variation in year ...
Meeting Document : WG-FSA-08/22 : Author(s): M.L. Stevenson, S.M. Hanchet and A. Dunn (New Zealand)
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Results from the random stratified trawl surveys to estimate distribution and abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2010 and 2011
on abundance. Catches of D. eleginoides were at half or lower than in surveys from both years than the average ... catch for the previous four years (2006-2009). Catches of C. gunnari were very low, with the 2011 catch ... , at less than 0.5 t, 15% of the earlier four year average, and the 2010 catch being 60% of the 2011 catch ... catches have been stable over recent years, with a fall in 2011. Skate catches were just below and just ...
Meeting Document : WG-FSA-11/23 : Author(s): G.B. Nowara, S.G. Candy and T. Lamb (Australia)
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Long-term changes in the size composition of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps at Potter Cove, after the 1978–1980 fishery in the area
Abstract: Fish samples collected through an overall period of 24 years at Potter Cove after ... /7 and the duration of the inshore phase of the species, which is known to last for 6-7 years. In the following years ... between 1982/83 and 1985/86, where the modal age changes from 2/3 to 6/7 years. After 1991/92 ... Fish samples collected through an overall period of 24 years at Potter Cove after the impact ...
Meeting Document : WG-FSA-07/52 : Author(s): E.R. Marschoff, E.R. Barrera-Oro and N.S. Alescio (Argentina)
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Age estimation and maturity of the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea
results finding no significant differences between the years. Von Bertalanffy parameters for the pooled ... –at–maturity (10.6 years, 13.6 years) are presented for males and females respectively, using a reduced probit ... finding no significant differences between the years. Von Bertalanffy parameters for the pooled dataset ... (10.6 years, 13.6 years) are presented for males and females respectively, using a reduced probit model. ...
Meeting Document : WG-FSA-05/20 : Author(s): P.M. Marriott, M.J. Manning and P.L. Horn (New Zealand)
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Flexible foraging strategies of gentoo penguins help buffer the impacts of inter-annual changes in prey availability
Shetland Islands, Antarctica, over five years. Antarctic krill Euphausia superba was the primary diet item ... , and fish the secondary, though the importance of these items varied among years. Diving behavior also ... varied over time; different dive depth-distributions were observed in each year. Nonetheless, chick ... with differences in prey availability by altering their foraging strategy among years. We suggest ...
Meeting Document : WG-EMM-08/50 : Author(s): A.K. Miller and W.Z. Trivelpiece (USA)
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2006/07
years in Subarea 88.1 and for five years in Subarea 88.2. This report summarises the large amount ... of the SSRUs within the two subareas was changed for the 2006 season as part of a 3-year experiment (SC-CAMLR ... are caught in some years (e.g., on the Shelf in 1999 and 2001), these year classes are not seen in large ... numbers in later years in the fishery. So at this stage there is no evidence for strong variation in year ...
Meeting Document : WG-FSA-07/28 : Author(s): S.M. Hanchet, M.L. Stevenson and A. Dunn (New Zealand)
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VME detection thresholds: provision of a beta version of a R library to compute detection probabilities and preliminary results on the case of the sea pens (Pennatulacea) of the CCAMLR Division 58.4.4b
Group 2018. However, despite the important level of the catches, no VME detection threshold triggering ... Group 2018. However, despite the important level of the catches, no VME detection threshold triggering ...
Meeting Document : WG-FSA-2019/46 : Author(s): A. Martin and M. Eléaume
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Observation on the interactions between marine mammals and mid-water krill trawl
was carried out onboard the Chinese krill fishing vessel Fu Rong Hai during the 2018/19 fishing season ... onboard the Chinese krill fishing vessel Fu Rong Hai during the 2018/19 fishing season. The inner-trawl ...
Meeting Document : WG-FSA-2019/60 : Author(s): Y. Ying, G. Fan, X. Zhao, J. Zhang, X. Wang and J. Zhu
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Are penguins and seals in competition for Antarctic krill at South Georgia?
they are, respectively, the main mammal and bird consumers of Antarctic krill (Euphausia superba). In recent years ... 1989 and 2000. Foraging ranges of the two species showed considerable overlap in both years ... species was very similar, but over the last 12 years the prevalence of krill in their diets has diverged ... of Antarctic fur seals will be enhanced as their population continues to increase, particularly in years ...
Meeting Document : WG-EMM-02/22 : Author(s): K.E. Barlow, I.L. Boyd, J.P. Croxall, K. Reid, U.J. Staniland and A.S. Brierley (United Kingdom)
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A drone-based Antarctic fur seal (Arctocephalus gazella) census of the St. Telmo Islands, South Shetland Archipelago
during the 2018-19 field season. The APH-28 provided a minimally-invasive, robust, and accurate (error ... during the 2018-19 field season. The APH-28 provided a minimally-invasive, robust, and accurate (error ...
Meeting Document : WG-EMM-2019/65 : Author(s): D.J. Krause and M.E. Goebel