Resultados de la búsqueda
-
Status of krill target strength
Paper Title: Status of krill target strength Abstract / Description: Empirical estimates for the ... measurements, namely thresholding. Theoretical estimates for the target strength are derived from the deformed ... is an empirical basis. The theoretical estimates show a non-monotonic dependence of target strength ... high signal-to-noise-ratio conditions, are consistent with the general pattern. Several specific ... date, there is no theory that adequately describes the scattering of sound by zooplankton. The animals ... ) involved detennination of krill density by trawling. No comments are made by the author on this sampling ... , so no assessment can be made here as to the accuracy of this density detennination. In two studies ... are very few data concerning the distribution of orientation and no specific information on shape ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 101–126 : Autor(es): Foote, K.G., D. Chu and T.K. Stanton
-
Fishery Report 2017: Dissostichus spp. (Subarea 48.2)
bathymetric distribution – • estimation of the probability of occurrence of Dissostichus spp. (site ... fishing areas (site- occupancy models). 13. The Ukrainian vessel Simeiz undertook research fishing in ... R EP O R T The map above shows the management areas within the CAMLR Convention ... Area, the specific region related to this report is shaded. Throughout this report the CCAMLR fishing ...
Document : Site Section: Publications
-
Acoustic data analysis and models of krill spatial distribution
/ Description: Acoustic data obtained on 4-5 January 1987 aboard the R/V Professor Siedlecki were used in three ... (spatial autocorrelation of krill biomass) and the frequency distribution of krill biomass estimate. The ... wavenumber spectrum resembles a white noise at scales of 2-20 km, although at scales smaller than 1 km the ... spectrum appears to lose its power significantly. The semivariance of biomass does not vary significantly ... obtained on 4-5 January 1987 aboard the RN ProfesSor Siedlecki were used in three descriptors of krill ... autocorrelation of krill biomass) and the frequency distribution of krill biomass estimate. The wavenumber ... spectrum resembles a white noise at scales of 2-20 km, although at scales smaller than 1 .km the spectrum ... appears to lose its power significantly. The semivariance of biomass does not vary significantly over ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 311–329 : Autor(es): Morin, A., A. Okubo and K. Kawasaki
-
Fishery Report: Dissostichus eleginoides South Sandwich Islands (Subarea 48.4)
IUU catch 8. There is no information to derive an estimate of the level of IUU fishing in Subarea ... 2. Stocks and areas 10. No data are available on the stock structure of fish in this fishery ... ) CONTENTS Page 1. Details of the fishery ... FISHERY REPORT: DISSOSTICHUS ELEGINOIDES SOUTH SANDWICH ISLANDS (SUBAREA 48.4) 1. Details of the ...
Document : Site Section: Publications
-
UK: 48.4 Assessment Summary
the assessment presented at WG-FSA-17. ] Single area, single stock with no separate sex/maturity ... + Survival 0 0.96 0.95 0.95 0.94 0.83 0.80 Within the model, no further post-release tagging occurs ... 48.4 Assessment Summary Tim Earl Abstract The ... following document was submitted to the Stock Assessment Review process to outline the source of current ...
Document : Site Section: Meetings
-
WG-FSA-08/60
Title Document No. [ to be completed by the ... [ to be completed by the Secretariat ] Original: English Agenda Agenda Item No(s): 5 Title THE ... accepted for publication elsewhere? Yes No X If published, give details ABSTRACT The paper ... gear on the bottom with no downlines Floating section: A section of floating line attached to the ...
Document : Site Section: Publications
-
Fishery Report: Dissostichus eleginoides Heard Island (Division 58.5.2)
7. No revised parameter estimates were available in 2010. Parameters used in the Division 58.5.2 ... there were no aged fish available for this latest year. Candy (2008) described the profile maximum ... estimates to between 11 and 26% (21% in 2006/07) of the total catch. No species was caught in quantities ... . No seabird mortalities were observed in the trawl fishery in Division 58.5.2 in 2009/10 (Table 9 ...
Document : Site Section: Publications
-
Fishery Report 2014: Dissostichus spp. South Sandwich Islands (Subarea 48.4)
chinstrap penguin (Pygoscelis antarctica) was injured in the fishery in Subarea 48.4. There have been no ... Commission for the Conservation of Antarctic Marine Living Resources www.ccamlr.org Commission pour la ... ://www.ccamlr.org/ Contents Page Introduction to the fishery ... The map on the cover page shows the management areas within the CAMLR Convention Area, the specific ...
Document : Site Section: Publications
-
Selectivity of commercial and research trawls in relation to krill
/ Description: This paper describes the results of fishing a single krill aggregation with a commercial trawl ... RT 72/308 and an Isaacs-Kidd midwater research trawl (IKMT). The commercial trawl catches contained ... more large krill (35-58 mm) than catches of the research trawl (30-54 mm). The maximum difference in ... krill length composition was observed between catches made by the research trawl, while in commercial ... m along the belly line. The trawl bag has no rope or large-mesh sections. Therefore, the effective ... This paper describes the results of fishing a single krill aggregation with a commercial trawl RT 72 ... /308 and an Isaacs-Kidd midwater research trawl (IKMT). The commercial trawl catches contained more ... large krill (35-58 mm) than catches of the research trawl (30-54 mm). The maximum difference in mean ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 161–169 : Autor(es): Kasatkina, S.M
-
Fishery Report: Closed fishery for Dissostichus spp. in Divisions 58.4.4a and 58.4.4b
fishing. There was no evidence of IUU fishing in 2003/04, 2007/08 and 2008/09. The estimated IUU catch ... . Stocks and areas 7. No data are available on the stock structure of fish in this fishery. 3 ... the fishery .................................................................... 1 1.1 Reported ... the fishery The longline fishery for Dissostichus spp. in Divisions 58.4.4a and 58.4.4b1 began as a ...
Document : Site Section: Publications