Resultados de la búsqueda
-
Estimating future krill catches that meet the CCAMLR and alternative decision rules for FAO Subarea 48.1 using an integrated assessment model
incorporates catch and length-composition data from the krill fishery with biomass indices and length ... krill population biology and the fishery during the period with data (1976 to 2014 in these models) and ... Abstract: An integrated assessment model for Antarctic krill in FAO Subarea 48.1 that ... -compositions from research surveys has been developed. The model uses statistical fits to these data to ...
Meeting Document : WG-EMM-15/51 Rev. 1 : Autor(es): D. Kinzey, G.M. Watters and C.S. Reiss (USA)
-
Near-shore acoustic surveys for Antarctic krill at South Georgia, January 2004
speeds of up to 7 knots. Echo intensity data were scaled to krill density using a target strength ... krill. In conclusion, acoustic surveys from small vessels enable data to be collected from regions where ... the surveys was to determine krill density near shore, in regions that have not traditionally been ... removable scaffold-tubing frame midships. With sails up the yacht had good roll stability and useable data ...
Meeting Document : WG-EMM-04/35 : Autor(es): A.S. Brierley, P.N. Trathan, J. Poncet and A. Morton (United Kingdom)
-
Discussion on recent results from an integrated assessment of Antarctic krill (Euphausia superba) in Subarea 48.1
-assessment framework for Antarctic krill (Euphausia superba) to assimilate multiple sources of survey data ... and estimate krill growth. Kinzey et al. (2014) fitted stock-assessment models to survey data that ... were pooled at annual, seasonal, and monthly time scales. The data were from research cruises ... from three of the models provide a robust picture of changes in the krill population. An annual model ...
Meeting Document : WG-EMM-14/35 : Autor(es): G.M. Watters, C.S. Reiss and D. Kinzey (USA)
-
INTERANNUAL SPATIAL VARIABILITY OF KRILL (EUPHAUSIA SUPERBA) INFLUENCES SEABIRD FORAGING BEHAVIOR NEAR ELEPHANT ISLAND, ANTARCTICA
and krill fisheries operating near Elephant Island. Author(s): J.A. Santora, C.S. Reiss, A.M. Cossio ... Abstract: We investigate the influence of krill (principally Euphausia superba) patchiness on the ... foraging distributions of seabirds to understand how variation in krill influences patch dynamics between ... krill and birds. At sea surveys were conducted near Elephant Island, Antarctica for three years (2004 ...
Meeting Document : WG-EMM-08/P12 : Autor(es): J.A. Santora, C.S. Reiss, A.M. Cossio and R.R. Veit
-
COMPARISON OF THE BIOMASS OF ANTARCTIC KRILL, (EUPHAUSIA SUPERBA), AROUND THE SOUTH SHETLAND AND SOUTH ORKNEY ISLANDS IN THREE YEARS: 1999, 2000 AND 2008
used to better resolve the temporal trends in krill biomass in this region. Such data would benefit the ... Abstract: Using a combination of techniques, we examine data from three cruises in 1999, 2000 and ... 2008 to calculate the biomass and demographic characteristics of Antarctic krill (Euphausia superba ... ) surrounding the South Orkney and South Shetlands Islands. Net tow data show that length frequency ...
Meeting Document : WG-EMM-08/26 : Autor(es): C. Reiss and A. Cossio (USA)
-
Krill fishery information
Abstract: This paper reviews information from krill fisheries operating in the CCAMLR Convention ... Area during the period July 1999 to June 2001. During that period, 14 vessels targeted krill in Area 48 ... during the 1999/2000 season (July 1999 to June 2000). A total of 104259 t of krill was caught, of which ... from within Area 48 (subarea not specified). Between July and November 2000, 11 vessels targeted krill ...
Meeting Document : WG-EMM-01/7 : Autor(es): Secretariat
-
An illustrative management procedure for exploring dynamic feedback in krill catch limit allocations among small-scale management units
average krill catches per SSMU associated with each MP. The key assumption made here is that data will be ... modified if, for example, no krill abundance indices are available. Given that “future” data are required ... subdivision of the precautionary catch limit for krill among 15 small-scale management units (SSMUs) in the ... subdivide the krill catch between SSMUs. Different MPs are then simulation tested with their performances ...
Meeting Document : WG-EMM-06/28 : Autor(es): É. Plagányi and D. Butterworth (South Africa)
-
Krill caught by predators and nets revisited: interpreting prey selection in proper temporal–spatial scales
compare krill length frequency data collected over the entire West area of the U.S. AMLR survey grid with ... Abstract: Krill demography and recruitment are tracked through time using scientific net sampling ... frequently show differences that have fueled speculation of prey selectivity by predators. Krill, however ... problematic. In this paper we use ARGOS satellite location data from foraging female fur seals to first ...
Meeting Document : WG-EMM-04/49 : Autor(es): M.E. Goebel, V. Loeb, D.P. Costa, S.N. Sexton, A.R. Banks, J.D. Lipsky and A.C. Allen (USA)
-
Krill fishery report: 2013 update
notifications for exploratory fisheries for krill. Author(s): Secretariat Title: Krill fishery report: 2013 ... Abstract: In 2011/12, 12 vessels from five Members fished for krill in Area 48 and the total ... catch of krill was 161085 t (Subarea 48.1: 75630 t; Subarea 48.2: 29040 t; Subarea 48.3: 56415 t). The ... largest catch of krill by small-scale management unit was taken in ‘South Georgia East’ in Subarea 48.3 ...
Meeting Document : WG-EMM-13/37 Rev. 1 : Autor(es): Secretariat
-
Estimating Antarctic krill density from multi-beam observations using distance sampling methods
processing of acoustic data from fishing vessels. Some krill fishing vessels are equipped with scanning or ... data observed with horizontally oriented multi-beam and scanning sonars to contribute to krill ... sampling theory- that provides a general means for estimating krill density and biomass from vertically ... oriented multi-beam echo-sounder data. I describe an extension to this approach that may, subject to the ...
Meeting Document : SG-ASAM-12/05 : Autor(es): M.J. Cox (Australia)