Resultados de la búsqueda
-
Influence of tag numbers, size of tagged fish, duration of the tagging program, and auxiliary data on bias and precision of an integrated stock assessment
aspects of a tagging program, in particular the effects of the numbers of fish tagged, the duration of a ... tagging program, the size of tagged fish, and the type of auxiliary data used in the assessment. The ... numbers were important particularly in the early stages of an exploratory fishery to ensure some ... estimates, however the precision of SSB status estimates in the final assessment year was relatively low ...
Meeting Document : WG-SAM-12/24 : Autor(es): P.E. Ziegler (Australia)
-
A sentiment analysis of online content containing Antarctic krill fishing search terms
terms 12 was analysed to evaluate public perception of the fishery, as a consideration in management 13 ... combination of recent increases in catches and perceived 16 negative environmental impacts of fishing for ... resulted in an ongoing public debate. 18 The tenor of this debate is inevitably guided by access to ... operate in a changing environment as well as a providing a method for using 25 online content sentiment ...
Meeting Document : WG-EMM-17/18 : Autor(es): J. Barrett, K. Reid and J. Jabour
-
Casal2: New Zealand’s integrated population modelling tool
confidence that the code base was validated. Design decisions taken at an early stage in CASAL’sdevelopment ... CASAL and to control its own destiny over progress in new stock assessment techniques, such aseasy use ... in management strategy evaluations. We have replicated many CASAL assessments successfullyand so will ... release the first version of Casal2 in 2016 as an open source package under the GPL-2.0 licence. A pre ...
Meeting Document : WG-SAM-18/P01 : Autor(es): I. Doonan, K. Large, A. Dunn, S. Rasmussen, C. Marsh and S. Mormede
-
Considerations about managing the krill fishery at small spatial and temporal scales
Abstract: We discuss a number of ecological issues in relation to CCAMLR’s aspiration for ... managing the krill fishery at small temporal and spatial scales. We highlight that the devil is in the ... the need for coupled research to ensure fishery displacement does not become too concentrated in other ... that krill demand from a range of predators in near-shore coastal habitats may only be met through ...
Meeting Document : WG-EMM-2019/22 : Autor(es): P.N. Trathan, V. Warwick-Evans and E. Young
-
Empirically-driven feedback management incorporating multi-scale risk assessment and an experimental framework to facilitate adaptive improvement
merit in terms of the utility of available data. However, none currently offers a holistic solution in ... their own right. In 2017, the Scientific Committee encouraged coordination among the various approaches ... which was presented by Norway, Chile and China to SC in 2017, and provide a framework for incorporating ...
Meeting Document : WG-EMM-2019/18 : Autor(es): A.D. Lowther, B. Krafft, O.R. Godø, C. Cardenas, X. Zhao and O.A. Bergstad
-
Developments, considerations and recommendations by the land-based predator survey group: a summary and up-date
-based predator abundance is provided for comment by the Working Group. In order to complete ... relevant spatial unit for estimation in Area 48 and the required precision for estimation in each unit. A ...
Meeting Document : WG-EMM-05/24 : Autor(es): C. Southwell (Australia), P. Trathan (United Kingdom), W. Trivelpiece, M. Goebel (USA) and P. Wilson (New Zealand)
-
The BROKE-West acoustic krill biomass survey of CCAMLR Division 58.4.2
krill in CCAMLR Division 58.4.2 (the South West Indian Ocean Sector) in January-March 2006. The survey ... comment in 1995 and suggested improvements have been incorporated into the final design. Author(s): S ...
Meeting Document : WG-EMM-05/11 : Autor(es): S. Nicol, S. Kawaguchi, T. Jarvis and T. Pauly (Australia)
-
New data on spawning, hatching and growth of the Kerguelen Islands Champsocephalus gunnari shelf stock
annual cohort. Strong differences in abundance of larvae are observed yearly. One cohort seems dominant ... in the samples along the study. It would explain the previouly observed three years cycle. Spawners ... have been observed in mass only once during the studied period and are fishes of the 1988 cohort first ...
Meeting Document : WG-FSA-94/9 Rev. 1 : Autor(es): G. Duhamel (France)
-
CEMP INDICES: 2008 UPDATE
indicator species collected by standard methods in the three Integrated Study Regions of the Convention Area ... anomalies in these data. This report covers predator indices only. Data were submitted by 7 Members for 10 ... seasons are being undertaken. There has been a general decline in the number of parameters submitted from ...
Meeting Document : WG-EMM-08/04 : Autor(es): Secretariat
-
UPDATED KRILL RECRUITMENT DATA FOR THE ELEPHANT ISLAND REGION OF THE SOUTH SHETLAND ISLANDS, ANTARCTICA; 2002-2008
day and night samples. All indices showed that high recruitment (R1) occurred in 2003 and in 2008 ... , with low recruitment occurring during the intervening years. Significant differences in the ...
Meeting Document : WG-EMM-08/41 : Autor(es): C. Reiss (USA)