Résultats de la recherche

1. A sensitivity analysis of a simple krill individual-based model designed to investigate length-based recruitment indices

   Abstract:  As part of the CCAMLR Scheme of International Scientific Observation, observers on ... -board Krill (Euphausia superba) fishing vessels measure the length of individual Krill sampled from ... commercial catches. These extremely valuable data may be used to monitor the state of harvested Krill ... provides insight into the underlying population dynamics. Three main processes drive temporal changes in ...

   Meeting Document : WG-EMM-13/23 : Auteur(s): S. Thanassekos and K. Reid (Secretariat)

2. SKATE DIET AT SOUTH GEORGIA INDICATES BENTHIC HABIT OF KRILL

   were collected during three groundfish surveys (winter 2007, 2008 and summer 2009) around the island of ... South Georgia, Southern Ocean. The diet of A. georgiana varied with skate size and between years ... presence of Antarctic krill in this skate’s diet indicates a benthic habit of this euphausiid species ... , polychaetes and other benthic fauna. The Antarctic skate appears to be an opportunistic predator and the clear ...

   Meeting Document : WG-FSA-09/15 : Auteur(s): C.E. Main and M.A. Collins (United Kingdom)

3. Density estimation of Antarctic krill (Euphausia superba) around South Shetland Island and Elephant Island (Subarea 48.1) using two frequencies with 38 and 120 kHz

   Abstract:  The density of Antarctic krill swarm inhabiting the Subarea 48.1, which includes the ... Elephant Island peripheries and the west and north of the South Shetland Island, was estimated using an ... in 2019. Krill were collected by the commercial midwater trawl fishing vessel. The data were ... software for swarm identification) and interval method based on distribution of (a) total krill AT and (b ...

   Meeting Document : SG-ASAM-2019/03 Rev. 1 : Auteur(s): S. Choi, S. Chung, I. Han, W. Oh, D. An and K. Lee

4. Acoustic estimates of krill density at South Georgia during 11 austral summers between 1981 and 1998

   north-eastern and north-western ends of South Georgia. In four of these years density was higher to the ... of the summers between 1990 and 1998 it was possible to calculate separate density estimates for ... Abstract:  Acoustic estimates of densities of Antarctic krill, Euphausia superba, at South Georgia ... are presented for eleven austral summers between 1981 and 1998. Krill abundance at the island ...

   Meeting Document : WG-EMM-98/51 : Auteur(s): A.S. Brierley, J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson (UK)

5. Population dynamics of black-browed and grey-headed albatrosses Diomedea melanophris and D. chrysostoma at Bird Island, South Georgia

   Albatross colonies decreased, at an average rate of 1.8% per annum. Although the total Black-browed ... Albatross population increased (at 0.8% pa.), 14 of the 23 colonies (including both study colonies ... ) decreased. Black-browed Albatrosses follow an annual breeding cycle, with over 80% of birds successful in ... rearing a chick and 75% of those failing to do so returning to breed the next year, 5-10% of both ...

   Meeting Document : SC-CAMLR-XII/BG/21 : Auteur(s): Delegation of United Kingdom

6. Ingestion of anthropogenic articles by seabirds at Macquarie Island

   regurgitations and the stomachs of seabirds at Macquarie Island; these were ingested both at sea and on land ... . Plastic particles were recorded from the stomachs of Southern Giant Petrels, Subantarctic Skuas, and Kelp ... Gulls. Birds examined in 1988 had a higher frequency of occurrence of foreign objects than birds ... Abstract:  Plastic particles and Other anthropogenic materials were recorded from the ...

   Meeting Document : CCAMLR-VIII/BG/12 : Auteur(s): D.J. Slip, K. Green and E. Woehler (Australia)

7. INTERANNUAL SPATIAL VARIABILITY OF KRILL (EUPHAUSIA SUPERBA) INFLUENCES SEABIRD FORAGING BEHAVIOR NEAR ELEPHANT ISLAND, ANTARCTICA

   Abstract:  We investigate the influence of krill (principally Euphausia superba) patchiness on the ... foraging distributions of seabirds to understand how variation in krill influences patch dynamics between ... concentrated. We conclude that annual patch dynamics of krill strongly influences the local abundance and ... -2006) during the annual U.S. Antarctic Marine Living Resources (AMLR) program. Standardized strip ...

   Meeting Document : WG-EMM-08/P12 : Auteur(s): J.A. Santora, C.S. Reiss, A.M. Cossio and R.R. Veit

8. Population dynamics of black-browed and grey-headed albatrosses Diomedea melanophris and D. chrysostoma at Bird Island, South Georgia

   Albatross colonies decreased, at an average rate of 1.8% per annum. Although the total Black-browed ... Albatross population increased (at 0.8% p.a.), 14 of the 23 colonies (including both study colonies ... ) decreased. Black-browed Albatrosses follow an annual breeding cycle, with over 80% of birds successful in ... rearing a chick and 75% of those failing to do so returning to breed the next year, 5- 10% of both ...

   Meeting Document : WG-CEMP-93/06 : Auteur(s): P.A. Prince, P. Rothery, J.P. Croxall and A.G. Wood (United Kingdom)

9. Lipid metabolism features of Antarctic toothfish Dissostichus mawsoni (Nototheniidae)

   specimens of Antarctic toothfish Dissostichus mawsoni (Perciformes: Nototheniidae) caught in the Ross Sea ... are given. Blood plasma, tissues mesonephric kidney, liver and spleen were studied for the content of ... . Biochemical status of immune organs depending on the structural and functional characteristics of tissues was ... Abstract:  Lipid metabolism and indices of oxidation processes obtained during examination of ...

   Meeting Document : WG-EMM-16/25 : Auteur(s): I.I. Gordeev, D.V. Mikryakov, N.I. Silkina and A.S. Sokolova

10. Impacts of ocean acidification on Antarctic krill biology: preliminary results and future research directions

    conditions in this study. Some practical approaches to observing and improving our understandings of the ... Abstract:  This study reports some preliminary results of the impacts of Ocean Acidification due ... to elevated seawater pCO 2 on the activity, mortality, moulting of post-larval krill.  Increased CO2 ... impacts of OA on Antarctic krill population are suggested. Author(s):  S. Kawaguchi, T. Berli, R. King, S ...

    Meeting Document : WG-EMM-12/32 : Auteur(s): S. Kawaguchi, T. Berli, R. King, S. Nicol, P. Virtue and A. Ishimatsu (Japan)

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