Resultados de la búsqueda
-
Significant intra-annual variability in krill distribution and abundance at South Georgia revealed by multiple acoustic surveys during 2000/01
Paper Title: Significant intra-annual variability in krill distribution and abundance at South ... acoustic surveys of Antarctic krill (Euphausia superba) were conducted around South Georgia in the 2000/01 ... South Georgia. Krill density in the western box in the early-season survey was very low (3.5 g m-2) but ... observations from previous years, krill density in the western box in the mid-season survey was less than that ... (2002): 71–82 71 SIGNIFICANT INTRA-ANNUAL VARIABILITY IN KRILL DISTRIBUTION AND ABUNDANCE AT SOUTH ... -andrews.ac.uk Abstract Three separate acoustic surveys of Antarctic krill (Euphausia superba) were conducted ... provided temporally and spatially extensive coverage around South Georgia. Krill density in the western ... - season (to 34.7 g m-2). In a pattern that is consistent with observations from previous years, krill ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 71–82 : Autor(es): Brierley, A.S., C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst
-
Differentiation of independent populations of Antarctic krill
Paper Title: Differentiation of independent populations of Antarctic krill Abstract / Description ... : Several countries have recently shown an interest in commercial krill fishing. An understanding of krill ... population structure is needed to establish sound management of krill fisheries. A short review is undertaken ... of recent studies in genetic and morphophysiological variability of krill and Antarctic water ... INDEPENDENT POPDLATIONS OF ANTARCTIC KRILL D.S.S.R. Abstract Several countries have recently shown an ... interest in commercial krill fishing. An understanding of krill population structure is needed to ... establish sound management 'of krill fisheries. A short review is undertaken of recent studies in genetic ... and morphophysiological variability of krill and Antarctic water circulation. On the basis of the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 275-281 : Autor(es): USSR
-
Krill distribution in the western Atlantic sector of the Southern Ocean during 1983/84, 1984/85 and 1987/88 based on the results of Soviet mesoscale surveys conducted using an Isaacs-Kidd midwater trawl
Paper Title: Krill distribution in the western Atlantic sector of the Southern Ocean during 1983 ... surveys covering a wide area of krill distribution between the Antarctic Peninsula and South Georgia ... krill biomass distribution (g/1 000 m 3) and its mean values were analysed by subarea (Subareas 48.1 ... general pattern of krill distribution and drift in the western part of the Atlantic sector of the ... CCAMLR Science, Vol. 6 (1999): 59-70 KRILL DISTRIBUTION ... mesoscale surveys covering a wide area of krill distribution between the Antarctic Peninsula and South ... m. Overall krill biomass distribution (g/ l 000 m3) and its mean values were analysed by subarea ... the general pattern of krill distribution and drift in the western part of the Atlantic sector of the ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 59–70 : Autor(es): Sushin, V.A. and K.E. Shulgovsky
-
The use of patent databases to predict trends in the krill fishery
Paper Title: The use of patent databases to predict trends in the krill fishery Abstract ... / Description: The fishery for Antarctic krill (Euphausia superba) caught 210 000 tonnes in 2009/10 with ... vessels from six of CCAMLR’s 25 Members participating in the fishery. Trends in the krill fishery are ... detect trends in the fishery, and of the need to obtain more information from the krill industry so that ... management of the Antarctic krill (Euphausia superba) fishery that the harvesting of this spe- cies will ... (Nicol et al., 2011). CCAMLR aims to manage the krill fishery in line with its precaution- ary and ... ecosystem-based approach to management. The krill fishery is unique because the current level of catch ... Commission on any of the fac- tors that might drive an increase in the fishery for Antarctic krill, so the ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 135–144 : Autor(es): Foster, J., S. Nicol and S. Kawaguchi
-
Effects of recruitment variability and natural mortality on generalised yield model projections and the CCAMLR decision rules for Antarctic krill
projections and the CCAMLR decision rules for Antarctic krill Abstract / Description: The generalised yield ... model (GYM) was used by CCAMLR to establish the precautionary catch limit for the Antarctic krill ... proportional recruitment of krill. In this study, krill sampling data for empirical size frequencies were ... krill around the Antarctic Peninsula (Subarea 48.1) along with increasing rates of natural mortality ... The annual catch of Antarctic krill (Euphausia superba) in the Scotia Sea (FAO Statistical Subareas ... criteria. From the early 1990s until 2009 the catch by the Antarctic krill fishery remained around 120 ... fishing has occurred mainly in Area 48, where about 28% of the Antarctic krill stock is esti- mated to ... occur (Atkinson et al., 2009; Nicol et al., 2012). Krill from the region around the Antarctic ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 81–96 : Autor(es): Kinzey, D., G. Watters and C.S. Reiss
-
A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia
structure of Antarctic krill at South Georgia Abstract / Description: A composite recruitment index based ... substantial differences, due in part to bias arising from a large number of krill in just one of the station ... describe the population structure of krill around South Georgia during seven cruises between 1989 and 1998 ... . Before 1994 the number of 1+ krill found around South Georgia was very low (proportion of 1+ krill <7 ... RECRUITMENT INDEX TO DESCRIBE INTERANNUAL CHANGES IN THE POPULATION STRUCTURE OF ANTARCTIC KRILL AT SOUTH ... differences, due in part to bias arising from a large number of krill in just one of the station net hauls ... population structure of krill around South Georgia during seven cruises between 1989 and 1998. Before 1994 ... the number of l + krill found around South Georgia was very low (proportion of l + krill <7 ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 71–84 : Autor(es): Watkins, J.L
-
Detection and quantitative estimation of krill concentrations by hydroacoustic instruments
Paper Title: Detection and quantitative estimation of krill concentrations by hydroacoustic ... detecting dispersed and surface concentrations of krill lead to considerable underestimates of krill biomass ... in areas surveyed. The task of detecting surface concentrations of krill can be solved with the help ... of towed acoustic antennae. The practical possibility of detecting dispersed krill by hydroacoustic ... ESTIMATION OF KRILL CONCENTRATIONS BY HYDROACOUSTIC INSTRUMENTS K.I. Yudanov (U.S.S.R.) Abstract The ... concentrations of krill lead to considerable underestimates of krill biomass in areas surveyed. The task of ... detecting surface concentrations of krill can be solved with the help of towed acoustic antennae. The ... practical possibility of detecting dispersed krill by hydroacoustic instruments was established on board ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 123-139 : Autor(es): Yudanov, K.I.
-
Estimating krill recruitment and its variability
Paper Title: Estimating krill recruitment and its variability Abstract / Description: A maximum ... likelihood method is developed for the decomposition of krill density-at-length data into the proportion of ... rate for 1+ krill (the ratio of the number of krill aged one year to the number of krill aged one year ... for 2+ krill (the ratio of the number of two-year-old krill to the number aged two and above) from ... CCAMLR Science, Vol. 1: 55-69 ESTIMATING KRILL ... of krill density-at-length data into the proportion of recruits in a population sampled by a net ... Indian Ocean sectors of the Southern Ocean give a mean recruitment rate for l+ krill (the ratio of the ... number of krill aged one year to the number of krill aged one year and above) of 0.339 with a standard ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 55–69 : Autor(es): de la Mare, W.K
-
Distribution and size–age composition of Antarctic krill (Euphausia superba) in the South Orkney Islands region (CCAMLR Subarea 48.2).
Paper Title: Distribution and size–age composition of Antarctic krill (Euphausia superba) in the ... composition and biological condition of Antarctic krill (Euphausia superba) caught by the Russian krill ... distribution of size–age groups in association with particular water masses indicated that age 2+ krill ... of trawl selectivity as adult Pygmy krill (E. frigida) (of the same size as 1+ krill) were present in ... Understanding the population structure of Antarctic krill (Euphausia superba) is one of the major issues for ... the management of krill fisher- ies. This includes locating areas with high and low krill spawning ... success. Determining the distribu- tion of different age classes of krill is critical for studying the ... krill exactly. However, data in the literature on growth rates provide a sufficient basis for ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 123–134 : Autor(es): Sologub, D.O. and A.V. Remeslo
-
By-catch of fishes captured by the krill fishing vessel Chiyo Maru No. 2 in Statistical Area 58 (January to March 1995)
Paper Title: By-catch of fishes captured by the krill fishing vessel Chiyo Maru No. 2 in ... of scientific observations conducted aboard the Japanese krill fishing vessel Chiyo Maru No. 2 ... per tome of krill, and an average of about 25 fish were caught per hour of towing. In weight, an ... average of about 1.2 kg of fish were caught per tonne of krill, and an average of about 2.2 kg of fish ... FISHES CAPTURED BY THE KRILL FISHING VESSEL CHIYO MARU NO. 2 IN STATISTICAL AREA 58 (JANUARY TO MARCH ... observations conducted aboard the Japanese krill fishing vessel Ckiyo Maru No. 2. Unfortunately, Armstrong's ... from the delta distribution. In numbers, an average of about 14 fish were caught per tome of krill ... of fish were caught per tonne of krill, and an average of about 2.2 kg of fish were caught per hour ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 111–123 : Autor(es): Watters, G