Resultados de la búsqueda

1. Zooplankton target strength: volumetric or areal dependence?

   MHz and the dependence of these data on animal volume versus cross-sectional area was explored The 420 ... kHz and I MHz data were collected with a dual-beam sonar system and the 200 kHz data with a split-beam ... seawater. The data were compared to both empirical and theoretical models of reduced target strength (TS ... normalized by the square of the animal length) versus ka (the product of wave number and equivalent ...

   Meeting Document : WG-Krill-94/13 : Autor(es): D.A. Demer and L.V. Martin (USA)

2. Marine debris: a persistent and emerging threat to antarctic ecosystems

   Abstract:  CCAMLR has had success in tackling marine debris from local sources in the Southern ... Ocean; however it remains a persistent threat. Current understanding of the distribution and impacts of ... evidence suggests that microplastic concentrations in the Southern Ocean are higher than previously thought ... , and that they are from local and international sources. Knowledge of the impacts of debris ...

   Meeting Document : SC-CAMLR-XXXVI/BG/29 : Autor(es): Submitted by ASOC

3. 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 : Autor(es): C. Wilcox (Australia)

4. Habituation to an acoustic harassment device (AHD) by killer whales depredating demersal longlines

   fisheries that suffer significant losses caused by odontocete depredation. However, the efficacy of AHDs to ... deter odontocetes from fishing gear remains poorly investigated. To determine the effectiveness of AHDs ... m from the source) from a Patagonian toothfish longliner operating off the Crozet Islands while it ... a 10- 300 m range from the vessel, as they only have access to fishing gear during hauling. We ...

   Meeting Document : WG-FSA-14/P04 : Autor(es): P. Tixier, N. Gasco, G. Duhamel and C. Guinet

5. SC-CAMLR-II

   Full Name:  Second Meeting of the Scientific Committee Location:  Hobart, Australia Date(s ... of Procedure SC-CAMLR-II/04 Activities of the Scientific Committee Arising From Articles IX, XV and ... XX of the Convention Chairman of the Scientific Committee SC-CAMLR-II/05/Rev. 1 Establishment of ... Subsidiary Bodies of the Scientific Committee Delegation of the USSR SC-CAMLR-II/06 Detection of Possible ...

   Meeting

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 : Autor(es): 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 : Autor(es): A.J. Constable, I. Ball, B. Raymond, S. Candy, R. Williams (Australia) and A. Dunn (New Zealand)

8. Fishing for toothfish using pots: results of trials undertaken around South Georgia, March–May 2000

   Abstract:  During the period March to May 2000, the UK undertook trials of a pot fishing method to ... catch D. eleginoides around South Georgia (Sub-area 48.3). This method has the potential to minimise, or ... eliminate, incidental bird mortality when compared to the standard longline method. This paper describes the ... trial, the results, and discusses the commercial viability of this fishing method for toothfish ...

   Meeting Document : WG-FSA-00/23 : Autor(es): D. Agnew, T. Daw, M. Purves and G. Pilling (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 : Autor(es): 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 : Autor(es): D.J. Agnew (Secretariat)

Páginas