Résultats de la recherche

1. Parasites of the Antarctic toothfish (Dissostichus mawsoni Norman, 1937) (Perciformes, Nototheniidae) in the Pacific sector of the Antarctic

   species of commercial fisheries in the Antarctic. It is an endemic and is found along the shelf of ... feeds on a variety of fish and cephalopods and can be an intermediate/paratenic host of some helminthes ... Secretariat Workflow Status:  Content Approved Delegation responsibility for releasing documents:  Russian ... , whose final hosts are whales, seals, large rays and sharks. This article presents new data on toothfish ...

   Meeting Document : WG-FSA-16/P01 : Auteur(s): I.I. Gordeev and S.G. Sokolov

2. Development of foraging behaviour and evidence of extended parental care in the gentoo penguin (Pygoscelis papua)

   their first trip to sea at a mean age of 70 days of age, before finally departing the colony at an ... average age of 82 days. During this fledging period, individual chicks made an average of five trips to ... sea. Trip duration increased significantly with chick age as trips to sea becoming more similar to ... opportunity for chicks to gain experience at sea prior to dispersal, but also allow them to develop foraging ...

   Meeting Document : WG-EMM-06/8 : Auteur(s): M. Polito and W.Z. Trivelpiece (USA)

3. Krill (Euphausia superba) distribution contracts southward during rapid regional warming

   Euphausia superba (hereafter, ‘krill’) has contracted southward over the past 90 years. Near their northern ... juvenile krill. We found evidence for environmental controls on recruitment, including a reduced density of ... , with associated nonlinear adjustments in the roles of keystone species, poses challenges for the ... Secretariat Workflow Status:  Content Approved Document Release Consent:  No Delegation responsibility for ...

   Meeting Document : WG-EMM-2019/P02 : Auteur(s): A. Atkinson, S.L. Hill, E.A. Pakhomov, V. Siegel, C.S. Reiss, V.J. Loeb, D.K. Steinberg, K. Schmidt, G.A. Tarling, L. Gerrish and S.F. Sailley

4. Results of the third CCAMLR sponsored research survey to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea, February 2014 and development of the time series

   standardised gear in a standardised manner; and (2) To sample additional experimental stations in an adjacent ... for the core strata showed a slight decline across the three surveys but this decline was not ... significantly different. Age frequency data from the surveys have shown the progression of a cohort from age 7 ... in 2012 to age 9 in 2014. These results suggest that the surveys are indexing local abundance and ...

   Meeting Document : WG-FSA-14/51 : Auteur(s): S. Mormede, S.J. Parker, S.M. Hanchet, A. Dunn (New Zealand) and S. Gregory (United Kingdom)

5. Results of the fourth CCAMLR sponsored research survey to monitor abundance of sub-adult Antarctic toothfish in the southern Ross Sea, February 2015 and further development of the time series

   (<110 cm) toothfish for the core strata showed a significant decline in this fourth year of the ... 2012 to age 9 in 2014 and to age 10 for females in 2015. The decline in the catch rates during the ... standardised manner; and (2) To sample additional experimental stations in an adjacent area to identify areas ... survey series. Age frequency data from the surveys have shown the progression of a cohort from age 7 in ...

   Meeting Document : WG-SAM-15/44 : Auteur(s): S.M. Hanchet, B.R. Sharp, S. Mormede, S.J. Parker (New Zealand) and M. Vacchi (Italy)

6. Spatio–temporal dynamics in maturation and spawning of Patagonian toothfish Dissostichus eleginoides on the subantarctic Kerguelen Plateau

   mature females did not spawn every year. Age-at-maturity estimates, obtained based on the assumption that ... fish of macroscopic stages ≥ 2 were mature, decreased between the 2004–2009 and 2010–2015 periods for ... both sexes. However, the magnitude of this temporal variation in age-at-maturity varied between gear ... :  Approved Secretariat Workflow Status:  Content Approved Delegation responsibility for releasing documents ...

   Meeting Document : WG-FSA-17/P04 : Auteur(s): P. Yates, P. Ziegler, D. Welsford, J. McIvor, B. Farmer and E.Woodcock

7. Temperature-dependent growth of Thysanoessa macrura: inter-annual and spatial variability

   . This contrasts with published data on the growth rates of Euphausia superba, which is predicted to be ... . We analyzed data from four separate years (1995, 1998, 2001, 2004) that varied widely in temperature ... growth. Growth rates of T. macrura varied between years and water masses, ranging from-0.037 mm day-1 in ... than in Weddell Sea water during all years. Growth rates were strongly correlated with temperature but ...

   Meeting Document : WG-EMM-13/39 : Auteur(s): R.M. Driscoll, C.S. Reiss and B.T. Hentschel (USA)

8. Swimming speed and allocation of time during the dive cycle of Antarctic fur seals

   foraging at sea. Mean swimming speeds during diving ranged from 1.32 to 1.99 ms-1 and 90% of diving ... or descent (3.6 time predicted BMR). Deep diving (>30 m) and high swim speeds also incurred costs ... in terms of reduced foraging time and may explain why mean dive depths for individuals were within ... on balancing the supply of, and demand for, oxygen and the principles that fur seals are attempting ...

   Meeting Document : WG-EMM-95/25 : Auteur(s): Bevan, R.M., Boyd, I.L., Reid, K.

9. Modelling growth of Antarctic krill: a new approach to describing the growth trajectory

   from an age 1+ mean length for different scenarios of winter and spring growth. We then provide ... -growth VB models. Our models indicate that, allowing for shrinkage, age 6+ mean length for the Indian ... Abstract:  Von Bertalanffy (VB) growth models for Antarctic krill have in the past been calibrated ... frequency samples. We develop an alternative approach to predicting the trajectory of length over time using ...

   Meeting Document : WG-EMM-05/27 : Auteur(s): S. Candy and S. Kawaguchi (Australia)

10. Report on the effectiveness of integrated weight (fast sinking) longlines in reducing the mortality of white-chinned petrels and sooty shearwaters in autoline longline fisheries

    for each pair of magazines or lines by counting dead birds during line hauling. In 2002 80 white ... sooty shearwaters (Puffinus griseus) killed by unweighted longlines (UW; mean sink rate to 20 m depth ...

    Meeting Document : WG-FSA-04/72 : Auteur(s): G. Robertson (Australia), N. Smith (New Zealand), B. Wienecke and S. Candy (Australia)

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