Результаты поиска
-
Some comments on the procedure of krill target strength assessment in echosurveys
in echosurveys is discussed. It is known that krill abundance and biomass estimation should be ... trawl selectivity and catchability. Krill abundance estimation related to TS target strength values ... : assessment of MSBS (MVBS) acoustic parameter distribution and krill length (weight) distribution in the study ... measuring system. However, the information obtained in that case provides not only total krill abundance ...
Meeting Document : WG-EMM-98/21 : Автор(ы): S.M. Kasatkina (Russia)
-
Histopathology of Antarctic krill, Euphausia superba, bearing black spots
Abstract: Small black spots have been noticed on the cephalothorax of Antarctic krill, Euphausia ... superba, since January, 2001. To study the nature of the black spots, the krill were sampled in the winter ... bacteria or amorphous material. In the 2007 samples, 42% of the krill had melanized nodules. Most of the ... nodules had an opening on the body surface of the krill. A single melanized nodule often contained more ...
Meeting Document : WG-EMM-08/P09 : Автор(ы): S. Miwa, T. Kamaishi, T. Matsuyama, T. Hayashi and M. Naganobu
-
Net sample validation of acoustic techniques used to identify and size Antarctic krill
Abstract: Acoustic surveys to estimate krill biomass require that sound backscattered by krill be ... collected with an RMT8. Around 80 % of the targets thought to be krill on the basis of their appearance on ... echo-charts were also identified as krill on the basis of their difference in backscatter at 38 and 120 ... kHz (ΔMVBS = MVBSI20- MVBS3S; where ΔMVBS between 2 & 12 dB). Biomass values estimated from krill ...
Meeting Document : WG-EMM-97/46 : Автор(ы): Watkins, J.L., Brierley, A.S.
-
Recommendations on estimating krill escape mortality during fishing operations: the problems and approaches
Abstract: The task to estimate the escape mortality of krill during the fishing operation ... assigned by Scientific Committee requires assessment of the total krill passed through the rope and netting ... parts of trawl and krill amount appeared unviable in the process of escapement. The recommendations ... ». Estimation of the total amount of krill escaped from the rope and netting parts of the trawl is proposed to ...
Meeting Document : WG-EMM-10/18 : Автор(ы): V.K. Korotkov and S.M. Kasatkina (Russia)
-
A sentiment analysis of online content containing Antarctic krill fishing search terms
Abstract: The sentiment of online content containing Antarctic krill fishing and related search ... decisions. The Antarctic krill fishery is managed by the Commission for the Conservation of 14 Antarctic ... Antarctic krill has caused concern for the 17 future of krill populations among stakeholders and has ... information about Antarctic krill, 19 typically through online searches and social media. Public perception of ...
Meeting Document : WG-EMM-17/18 : Автор(ы): J. Barrett, K. Reid and J. Jabour
-
Krill density, biomass, proportional recruitment and recruitment index in the elephant island region during the period 1977 to 1997
Abstract: The Elephant Island long-term data set was updated for krill density and proportional ... recruitment. Krill biomass (from net sampling surveys) and absolute recruitment are introduced as additional ... /95 and an average 1995/96 krill year-class (below average for proportional recruitment, average for ... absolute recruitment). After a period of low krill density in the area for almost a decade, krill density ...
Meeting Document : WG-EMM-97/29 : Автор(ы): Loeb, V., Siegel, V., Gröger, J.
-
Draft Krill Fishery Report
summary of information related to the krill fishery in a similar format to the fishery reports that are ... the preparation of a draft krill fishery report for consideration at WG EMM-14 that would be similar ... in content to a finfish Fishery Report. The following compilation of information on the krill fishery ... has been prepared by the Secretariat to provide the basis for such a Krill Fishery Report. This also ...
Meeting Document : WG-EMM-14/58 : Автор(ы): Secretariat
-
Antarctic krill and climate change
krill Euphausia superba and environmental sciences attended a workshop aiming to evaluate new knowledge ... on the impact of climate change and increasing fisheries on Antarctic krill and Antarctic ecosystems ... climate change on krill is probably negative. To be able to account for climate change-induced ... ramifications on Antarctic krill and ecosystems, the adaptive capacity of the fisheries management of CCAMLR ...
Meeting Document : SC-CAMLR-XXX/BG/03 : Автор(ы): Delegation of the European Union
-
Distribution, biomass and abundance of Antarctic krill in the vicinity of Elephant Island during the 1996 austral summer
during the 1996 austral summer indicate very good krill recruitment from spawning in 1994/5. Areas of ... high krill density were mapped north of King George and Elephant Islands where water depth was greater ... than 200m. One-year old juvenile krill numerically dominated catches during the first survey in January ... adult krill were caught during both surveys north of the islands, but were numerically dominate only ...
Meeting Document : WG-EMM-96/23 : Автор(ы): Demer, D.A., Hewitt, R.P., Loeb, V.
-
Distributions and predator-prey interactions of macaroni penguins, Antarctic fur seals, and Antarctic krill near Bird Island, South Georgia
. Simultaneous surveys of marine birds, Antarctic fur seals and Antarctic krill were conducted along a series of ... between the distributions of predators and their prey with respect to the abundance of krill in the water ... correlations with Antarctic krill density across a wide range of spatial scales. Because krill was abundant ... factored out, we were able to demonstrate an additional influence of Antarctic krill abundance at ...
Meeting Document : WG-CEMP-93/12 : Автор(ы): G.L. Hunt, Jr (USA), D. Heinemann (USA) and I. Everson (United Kingdom)
Страницы
- « первая
- ‹ предыдущая
- …
- 35
- 36
- 37
- 38
- 39
- 40
- 41
- 42
- 43
- …
- следующая ›
- последняя »