Résultats de la recherche

1. Developing a Risk Assessment for Subarea 48.1 using tracking data

   Abstract:  CCAMLR has endorsed the use of the Risk Assessment framework to apportion the krill ... catch limits in order to minimise the risk of the fishery to krill dependent predators. We plan to apply ... the risk assessment framework across Subarea 48.1 at various spatial and temporal scales, in order to ... identify the most appropriate way to spread the catch from the fishery. The risk assessment framework ...

   Meeting Document : WG-EMM-2019/24 : Auteur(s): V. Warwick-Evans, A. Friedlaender, J.T. Hinke, N. Kokubun, J.H. Kim and P.N. Trathan

2. A method for inferring movement rates of fish from mark–recapture data

   Abstract:  This paper presents methods to infer the rate of movement of fish that are marked ... , released, and subsequently captured. The information that is available is the location and date of the ... release and the recapture. In addition, the intensity of fishing effort (i.e. sampling) by location and ... time is known. The simplest approach is to make a frequency plot of the distance between each release ...

   Meeting Document : WG-FSA-05/66 : Auteur(s): C. Wilcox (Australia)

3. Longline sink rates on a bottom autoline vessel in New Zealand: draft

   vessel F.V. San Aotea in New Zealand. The objective of the project was to determine line sink rate, and ... the effect that adding weights to the line had on its sink rate. The vessel used Mustad autoline ... as would be used in normal fishing operations to test the effectiveness of weighting the longline as ... rapid attachment method for Time Depth Recorders was also developed and is documented. The study found ...

   Meeting Document : WG-FSA-98/51 : Auteur(s): N.W. McL. Smith (New Zealand)

4. Longline sink rates of an autoline vessel, and notes on seabird interactions

   autoline fishing vessel working the New Zealand ling (Genypterus blacodes) longline fishery on the Chatham ... Rise, New Zealand during July and August 1998. The autoline equipment is designed to sink without ... . Further trials were conducted with weights added to the longline as in normal fishing operations. A robust ... attachment method for Time Depth Recorders was developed. A tori line was used at all times by the vessel ...

   Meeting Document : WG-FSA-01/44 : Auteur(s): N.W.McL. Smith (New Zealand)

5. Beach litter survey - Signy Island, South Orkney Islands 1995/96

   Abstract:  A beach litter survey was carried out on Signy Island, South Orkney Islands during the ... 1995/96 austral summer. Similar surveys have been conducted during the previous five summers. Debris ... other beach surveys were carried out. This was because of logistical difficulties caused by the late ... break out of sea-ice and the redevelopment of the British Antarctic Survey (BAS) research station on ...

   Meeting Document : CCAMLR-XV/BG/16 : Auteur(s): Delegation of the United Kingdom

6. Interannual variability in Antarctic krill (Euphausia superba) density at South Georgia, Southern Ocean: 1997 – 2013

   estimates for a 17 year time series of acoustic surveys of the Western Core Box at South Georgia.  Krill ... targets were identified in acoustic data using the approved CCAMLR protocol, that is using a multi ... -frequency identification window and converted to krill density using the Stochastic Distorted-Wave Born ... g m-2) and its distribution was highly skewed with many zero observations. Within each survey the ...

   Meeting Document : WG-EMM-14/P04 : Auteur(s): S. Fielding, J. Watkins, P. Trathan et al.

7. Evaluating methods to assess yield of Patagonian toothfish (Dissostichus eleginoides) in CCAMLR Division 58.5.2

   Abstract:  This paper describes aspects of the Management Strategy Evaluation (MSE) being ... developed to evaluate possible management strategies for the Patagonian toothfish fishery in Division 58.5.2 ... . As requested by the Subgroup on Assessment Methods, we elaborate the plausible operating models ... currently being used for Patagonian toothfish in Division 58.5.2, the types of data and observations of the ...

   Meeting Document : WG-FSA-05/69 : Auteur(s): A.J. Constable, I. Ball, B. Raymond, S. Candy, R. Williams (Australia) and A. Dunn (New Zealand)

8. Beach debris survey – Main Bay, Bird Island, South Georgia 1998/99

   Abstract:  The ninth year of surveys of beach man-made debris at Bird Island, South Georgia ... revealed a total of 213 items, 51% less than the total of 430 items in 1997/98 and the second lowest total ... noted. The winter (April- September) total was 66 % lower than in 1997/98 and is the lowest total since ... 1990. The number of items collected in the summer was 172, a decrease of 45% from the 1997/98 total of ...

   Meeting Document : SC-CAMLR-XIX/BG/05 : Auteur(s): Delegation of the United Kingdom

9. An inter-laboratory comparison of ages estimated for Dissostichus eleginoides using otoliths

   , otoliths were taken from 100 fish caught in the South Atlantic, and transverse sections prepared by baking ... , then grinding from the anterior and posterior sides of the otolith. Ages were estimated from the ... otoliths by one reader from the Center for Quantitative Fisheries Ecology at Old Dominion University and ... one reader from the National Institute of Water and Atmospheric Research, without auxiliary ...

   Meeting Document : WG-FSA-99/56 : Auteur(s): J. Ashford (United Kingdom) and P. Horn (New Zealand)

10. Preliminary model of krill fishery behaviour in Subarea 48.1

    Abstract:  A simple deterministic model is described which models the behaviour of the krill ... fishery in Subarea 48.1 and estimates the effort applied and the catch of krill in fine-scale squares ... . Parameters for the model are calculated from data reported to CCAMLR by Chile over the period 1989 to 1992 ... . The distribution of catches predicted by the model, which is restricted to the months December to ...

    Meeting Document : WG-KRILL-93/14 : Auteur(s): D.J. Agnew (Secretariat)

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