Search results

1. Further development of a krill fishery simulation model

   Abstract:  The model of the krill fishery presented in 1993 (wg-Krill-93/14) refined and applied ... to both Japanese and Chilean krill fishing fleets in Subarea 48.1. A stochastic element is introduced ... to account for variability in catch rates. The most successful management regime is found to be one ... the model predicts a 90% reduction in overlap with foraging predators, and a 15 to 20% reduction in ...

   Meeting Document : WG-Joint-94/04 : Author(s): D.J. Agnew (Secretariat)

2. IMPACTS OF CLIMATE CHANGE ON ANTARCTIC MARINE ECOSYSTEMS: A CALL FOR ACTION

   Abstract:  Climate change has emerged as an important topic in Antarctic research over the past ... decade, but little in the way of policy or operational change has resulted at CCAMLR. Over the past 50 ... changes are accelerating as time passes, including regional changes in sea ice persistence and extent. The ... reductions in sea ice will be among the most immediate changes, and likely will lead to major alteration in ...

   Meeting Document : CCAMLR-XXVII/BG/27 : Author(s): Submitted by ASOC

3. Age validation of juvenile Notothenia rossii at Potter Cove, South Shetland Islands, using mark-recapture data

   Abstract:  Among all validation methods of age determination in fish, release of known age and ... principle of annual deposition of an annulus in scales and otoliths. Of 132 juvenile specimens (TL = 22.1 ... –38.1 cm) tagged and released in successive years from 2004 to 2010, 7 were recaptured at the same site ... after periods of 1–13 months. In scales of five specimens recovered after 10–13 months, one extra ...

   Meeting Document : WG-FSA-13/P01 : Author(s): E. Moreira, E. Barrera-Oro and M. La Mesa

4. Research results from the SPRFMO exploratory fishing program for Antarctic toothfish 2016 and 2017

   toothfish in the South Pacific Regional Fisheries Management Organisation (SPRFMO) Convention Area during ... catch rates of post-spawning Antarctic toothfish, similar in magnitude to catch rates in the north ... . Fish were in poor body condition as assessed using Fulton’s condition factor indicative of full or ... partial starvation which would be consistent with a spawning event prior to the sampling in 2016 and 2017 ...

   Meeting Document : WG-FSA-18/39 : Author(s): J.M. Fenaughty, M. Cryer and A. Dunn

5. Male krill grow fast and die young

   examined with an extensive dataset derived from scientific surveys in the Indian Ocean sector and the ... southwest Atlantic sector, and from the krill fishery in the Southern Ocean. The percentage of males in size ... classes of adult krill was generally high in krill of 30-35 mm total length, always low in 38-42 mm krill ... , sometimes showed higher values in 45-50 mm krill, but always decreased in the largest krill (>50 mm ...

   Meeting Document : WG-EMM-07/P6 : Author(s): S. Kawaguchi, L.A. Finley, S. Jarman, S.G. Candy (Australia), R.M. Ross, L.B. Quetin (USA), V. Siegel (Germany), W. Trivelpiece (USA), M. Naganobu (Japan) and S. Nicol (Australia)

6. Oil, marine debris and fishing gear associated with seabirds at Bird Island, South Georgia 1995/96

   Abstract:  In the third year of standardised recording of oil, fishing gear and marine debris at ... grey-headed albatrosses (two items). One gentoo penguin chick was released from entanglement in a ... were reported in association with grey-headed albatrosses (one squid jig decoy), black-browed ... (two squid jigs; six hooks swallowed and impaled (four in adults, two in chicks), the remainder being ...

   Meeting Document : SC-CAMLR-XV/BG/04 : Author(s): Delegation of the United Kingdom

7. Diet and feeding ecology of the diving petrels Pelecanoides georgicus and P. urinatrix at South Georgia

   Bird Island, South Georgia. The diet of both species was dominated by crustaceans. in particular ... crustaceans in the diet of P. georgicus. and copepods, which contributed 71 % of the biomass of crustaceans in ... the diet of P. urinatrix. Calanoides acutus was the most numerous copepod in the diet of both species ... ; however, Rhincocalamus gigas was more common in P. urinatrix than in P. georgicus. The dominant amphipod ...

   Meeting Document : WG-EMM-97/10 : Author(s): Croxall, J.P., Prince, P.A., Hill, H.J., Edwards, T.M., Reid, K.

8. Effect of a shore-based sampling program on Notothenia coriiceps populations

   coriiceps was studied at Potter Cove, South Shetland Islands, by comparing catch data taken in successive ... summers of 1992/93 to 1994/95 at one specific zone (site 1) with those taken in the same last summer at ... under similar sampling conditions (depth, net measurements, bottom type). In site 1, a marked decrease ... in length (TL) of the fish was observed throughout the whole period. The fish from sites 2 (x=32.4 cm ...

   Meeting Document : WG-FSA-99/24 : Author(s): R. Casaux and E. Barrera-Oro (Argentina)

9. Winter habitat selection by Antarctic krill will increase krill-predator-fishery interactions during ice free years

   Abstract:  Climate change will affect populations and fisheries in the Southern Ocean as area ... typically covered by seasonal sea-ice become ice free in some winters (Stammerjohn et al. 2008). For ... of a commercial fishery (Nicol et al. 2010; Watters et al. 2013), recent declines in seasonal sea-ice ... around the Antarctic Peninsula in winters with contrasting ice conditions provide the first acoustic ...

   Meeting Document : WG-EMM-15/05 : Author(s): C.S. Reiss, A. Cossio, C.D. Jones, A. Murray, G. Mitchell, J. Santora, K. Dietrich, E. Weiss, C. Gimpel, J. Walsh and G.M. Watters (USA)

10. SEASONAL ESTIMATION OF ABUNDANCE BY BOOTSTRAPPING INEXACT RESEARCH DATA (SEABIRD): A METHOD FOR ASSESSING ABUNDANCE AND UNCERTAINTY FROM HISTORICAL COUNT DATA USING ADELIE PENGUINS AS A CASE STUDY

    Abstract:  In addition to a review of published studies on Adelie penguin abundance at breeding ... sites in Antarctica, Southwell (2004) proposed a general abundance estimator appropriate for a species ... of that kind. The present study attempts to implement this estimator in the form of a parametric ... uncertainty at breeding sites in Antarctica. To achieve this task, a menu-driven suite of routines titled ...

    Meeting Document : WG-EMM-PSW-08/11 : Author(s): J.P. McKinlay and C.J. Southwell (Australia)

Pages