Resultados de la búsqueda
-
Comparison of krill density estimated with swarm-based and dB-difference method using acoustic data collected by Chinese fishing vessel participating in the 2019 Area 48 survey
Abstract: To address the effect of various identification methods on krill biomass estimates ... estimated krill densities were statistically compared using significance test and geometric linear ... conclusion. Author(s): X. Yu, X. Wang, J. Zhang and X. Zhao Title: Comparison of krill density estimated ... Workflow Status: Content Approved Document Release Consent: No Delegation responsibility for releasing ...
Meeting Document : SG-ASAM-2019/06 : Autor(es): X. Yu, X. Wang, J. Zhang and X. Zhao
-
Ecosystem modelling for the Antarctic krill fishery
Abstract: Euphausia superba Dana (Antarctic Krill) has been recognized as a key forage species in ... but there is concern that the reduction in krill biomass due tome fishery may have impacts on other ... krill predators such as penguins, seals and whales. In order to evaluate the effects of krill fishing on ... well as competitors for a common resource. In this context we aim to investigate whether the krill ...
Meeting Document : WG-EMM-01/65 : Autor(es): T. Antezana, J. Cornejo, E. Bredesen, P. Faundez (Chile), A.W. Trites and T. Pitcher (Canada)
-
Integrated models for Antarctic krill (Euphausia superba) using survey data from 1981–2014 in Subarea 48.1
forward projections, incorporating data from the krill fisheries and observer program, and possibly begin ... Abstract: The integrated modeling framework for Antarctic krill (Euphausia superba) has been ... extended to include estimates of krill growth consistent with survey data and to use multi-nation survey ... of Antarctic krill in Subarea 48.1 based on different aggregations of the data are described to ...
Meeting Document : WG-SAM-14/20 : Autor(es): D. Kinzey, G.M. Watters and C.S. Reiss (USA)
-
Krill population dynamics at South Georgia 1991–1997, based on data from predators and nets
Abstract: Central to understanding krill population dynamics is knowledge of their population ... structure. To examine this we used length-frequency distributions from 142 weeks of sampling (n= 23996 krill ... ) of 3 predator species breeding at South Georgia and 12 weeks of sampling (n = 10 252 krill) from ... scientific nets from the same area over the summers of 1991-1997. In comparing the 5 years with both predator ...
Meeting Document : WS-AREA 48-98/15 : Autor(es): K. Reid, J. Watkins, J. Croxall and E. Murphy (UK)
-
Key considerations for planning a large-scale krill survey
management (FBM) approaches for the krill stock in subareas 48.1 to 48.4. These approaches include some which ... needs reliable indicators of krill stock size at appropriate spatial scales. It is likely that future ... FBM approaches will require regular information on krill stock size at relatively fine spatial scales ... ) might also play a role in the future management of the krill fishery. Such surveys provide an indication ...
Meeting Document : WG-EMM-15/27 : Autor(es): S. Hill, J. Watkins (United Kingdom), O.R. Godø (Norway), S. Kawaguchi (Australia), D. Kinzey, C. Reiss (USA), V. Siegel (Germany), P. Trathan (United Kingdom) and G. Watters (USA)
-
Preliminary results from the International Synoptic Krill Survey in Area 48, 2019
Abstract: Preliminary results from the International Synoptic Krill Survey in Area 48, 2019, are ... results from four (vessels from the Association of Responsible Krill harvesting companies (ARK), Norway ... , which were based on the methods and procedures used in the CCAMLR 2000 krill acoustic survey ... . Backscatter from krill were delineated using the 'swarms' method and integrated to produce ...
Meeting Document : WG-EMM-2019/47 : Autor(es): G. Macaulay, G. Skaret, T. Knutsen, O.A. Bergstad, B. Krafft, S. Fielding, S.G. Choi, S. Chung, K. Demianenko, V. Podhornyi, K. Vishnyakova, L. Pshenichnov, A. Chuklin, A. Shishman and M.J. Cox
-
Biomass results from the International Synoptic Krill Survey in Area 48, 2019
Abstract: Results from the International Synoptic Krill Survey in Area 48, 2019, are presented ... methods and procedures used in the CCAMLR 2000 krill acoustic survey. Backscatter from krill were ... delineated using the ‘swarms’ method and integrated to produce distribution maps of krill areal density and ... survey standing stock estimates. Krill areal density for the CCAMLR 2000 strata was 35.2 gm-2, producing ...
Meeting Document : SG-ASAM-2019/08 Rev. 1 : Autor(es): G. Macaulay, G. Skaret, T. Knutsen, O.A. Bergstad, B. Krafft, S. Fielding, S. Choi, S. Chung, K. Demianenko, V. Podhornyi, K. Vishnyakova, L. Pshenichnov, A. Chuklin, A. Shishman, X. Wang, X. Zhao and M. Cox
-
A spatial multi-species operating model (SMOM) of krill–predator interactions in small-scale management units in the Scotia Sea
Abstract: A Spatial Multi-species Operating Model (SMOM) of the underlying krill-predator-fishery ... dynamics is developed in response to requests for scientific advice regarding the subdivision of the ... precautionary catch limit for krill among 15 small-scale management units (SSMUs) in the Scotia Sea to reduce ... of krill in each of the SSMUs, as well as the numbers of predator species in each of these areas. The ...
Meeting Document : WG-EMM-06/12 : Autor(es): É. Plagányi and D. Butterworth (South Africa)
-
Preliminary biomass estimation of Antarctic krill based on the swarm-based method for CCAMLR Division 58.4.1 in 2018/19 using data obtained by Japanese survey vessel Kaiyo-maru
Abstract: Biomass (B 0) of Antarctic krill for CCAMLR Division 58.4.1 in 2018/19 was ... method potentially includes non-krill echoes but also excluding aggregations of krill which are smaller ... estimation of Antarctic krill based on the swarm-based method for CCAMLR Division 58.4.1 in 2018/19 using ... : Content Approved Document Release Consent: No Delegation responsibility for releasing documents: Japan ...
Meeting Document : SG-ASAM-2019/02 : Autor(es): K. Abe, R. Matsukura, N. Yamamoto, K. Amakasu and H. Murase
-
An approach to feedback management (FBM) of the krill fishery based on routine acoustic data collection and intermittent land-based predator studies
level in the fishery of Antarctic krill in Subareas 48.1 through 48.4 (CM 51-07) has continuously been ... specific scientific studies at regular (multiyear) intervals. The foundations of the proposal are that ... efficient implementation of FBM. Initiating the model development and the krill fishing-predator study now ... Norway, China and Chile Title: An approach to feedback management (FBM) of the krill fishery based on ...
Meeting Document : SC-CAMLR-XXXVI/BG/20 : Autor(es): Delegations of Norway, China and Chile