Resultados de la búsqueda
-
Performance of an acoustic sonde design
Abstract: The potential of multi-frequency acoustic technology for quantifying fish and plankton ... heat generation in ceramic elements, isotropic ambient noise, and detection threshold of 20 dB. Target ... strength is treated as a parameter, with investigated values from-130 to-50 dB. Performance assessment for ... : Performance of an acoustic sonde design Approval: Approved ...
Meeting Document : WG-EMM-95/09 : Autor(es): Foote, K.G.
-
An assessment of the impact of krill fishery on penguins in the South Shetlands
equivalent amount (3,000-10,000 t/10-day) for the following three months, with its increased fishing ... -20 day), the present catch rate (≤10 x103t/10-day) is smaller by one or more orders of magnitude ... fishery is very unlikely to have an adverse impact on the local krill biomass and hence on penguins ... . Author(s): T. Ichii, M. Naganobu and T. Ogishima (Japan) Title: An assessment of the impact of krill ...
Meeting Document : WG-KRILL-93/07 : Autor(es): T. Ichii, M. Naganobu and T. Ogishima (Japan)
-
The krill distribution in waters around the South Shetland Islands: Preliminary results from an acoustic survey conducted by a Chinese krill fishing vessel in December 2013
data for the estimation of krill stock and its management. In December 2013, a trial acoustic survey ... strait. The majority of the krill swarms were found in the upper 100 m with a thickness less than 30 m ... results from an acoustic survey conducted by a Chinese krill fishing vessel in December 2013 Approval ...
Meeting Document : WG-EMM-14/47 : Autor(es): X. Wang, X. Zhao, G. Qi, T. Zuo, J. Zhu, J. Zhang and X. Li (People’s Republic of China)
-
An idea to incorporate potential recruitments in the krill density model
involved uncertainties of age 1 krill. Present document improves the model by taking the uncertainties in ... . Author(s): S. Kawaguchi and M. Naganobu (Japan) Title: An idea to incorporate potential recruitments in ...
Meeting Document : WG-EMM-99/51 : Autor(es): S. Kawaguchi and M. Naganobu (Japan)
-
Towards an assessment of the stock of the ommastrephid squid Martialia hyadesi in the Scotia Sea: data from predators
and Ommastrephidae. Fisheries for the latter have been characterised by dramatically fluctuating ... squid is an important component of the diet of several species of albatross and the southern elephant ... squid. At least for the albatrosses and southern elephant seal this does not appear to be the case ... . Martialia probably has a life span of two years and a circumpolar distribution but its biology and ecology ...
Meeting Document : SC-CAMLR-IX/BG/13 : Autor(es): Delegation of United Kingdom
-
An analysis of temporal variability in abundance, diversity and growth rates in the coastal ichthyoplankton assemblage of South Georgia (sub-Antarctic)
) and C. gunnari (Channichthyidae), dominated abundance in all years. Significant seasonal and ... significantly correlated with local SST or primary productivity. Estimates of larval growth are provided for 5 ... there has been little change in growth rate for the main species over the last three decades. Author(s ... ): M. Belchier and J. Lawson (United Kingdom) Title: An analysis of temporal variability in abundance ...
Meeting Document : WG-FSA-12/33 : Autor(es): M. Belchier and J. Lawson (United Kingdom)
-
An initial analysis of the characteristics of Antarctic krill taken by the commercial fishery and Antarctic fur seals during the winters of 2002 and 2003 at South Georgia
Abstract: We present an initial analysis of the fishing locations, fishing depth and length ... during winter. It may be appropriate to review the number of krill measured by observers in order to ... -catch. Author(s): K. Reid, D.J. Agnew, N.L. Warren and E. Owen (United Kingdom) Title: An initial ...
Meeting Document : WG-EMM-04/62 : Autor(es): K. Reid, D.J. Agnew, N.L. Warren and E. Owen (United Kingdom)
-
An overview of the elasmobranch fish of the Southern Ocean
Abstract: This review summarises current knowledge of the elasmobranch fish occurring in the ... . Author(s): J.R. Ellis, S.R. McCully, V.V. Laptikhovsky and R. Scott (United Kingdom) Title: An overview ...
Meeting Document : WG-FSA-13/28 : Autor(es): J.R. Ellis, S.R. McCully, V.V. Laptikhovsky and R. Scott (United Kingdom)
-
Environmental response of upper trophic level predators reveals a system change in an Antarctic marine ecosystem
Georgia. Indices of population size and reproductive performance showed declines in all species and an ... increase in the frequency of years of low reproductive output. Changes in the population structure of krill ... predators reveals a system change in an Antarctic marine ecosystem Approval: Approved ...
Meeting Document : WG-EMM-01/21 : Autor(es): K. Reid and J.P. Croxall (United Kingdom)
-
Habituation to an acoustic harassment device (AHD) by killer whales depredating demersal longlines
activation and 30 phases during which the AHD was turned off. Two multi-exposed killer whale social units ... : Habituation to an acoustic harassment device (AHD) by killer whales depredating demersal longlines Approval ...
Meeting Document : WG-FSA-14/P04 : Autor(es): P. Tixier, N. Gasco, G. Duhamel and C. Guinet