Resultados de la búsqueda
-
Squeezed from both ends: Decline in Antarctic fur seals in the South Shetland Islands driven by both Top–down and Bottom–up processes
in predator populations can improve ecosystem models and management of marine ecosystems. Within the ... Abstract: Understanding the relative contributions of different sources of mortality and survival ... . This has led to an under emphasis of the role of bottom-up drivers for controlling fur seal production ... within the system. We review the historical data in Antarctic pup production and provide annual pup ...
Meeting Document : WG-EMM-14/39 : Autor(es): M.E. Goebel and C.S. Reiss (USA)
-
Report on the survey in Subarea 48.2 in 2015–2017
Abstract: The three years of survey and observations of Dissostichus spp. in statistical Subarea ... . Author(s): Delegation of Ukraine Title: Report on the survey in Subarea 48.2 in 2015–2017 Approval ... 48.2 on board the Ukrainian vessel SIMEIZ. Survey was conducted in accordance with the recommendations ... of the Scientific Committee and Commission. Obtained data will be used for the future biomass ...
Meeting Document : WG-FSA-17/43 : Autor(es): Delegation of Ukraine
-
Revised research plan for the exploratory longline fishery for Dissostichus spp. in 2015/16 in Division 58.4.3a
to progress on the robustness of the CASAL assessment. The biomass in division 58.4.3a was estimated ... during WG-FSA 2014 using the Petersen estimator at 386 tonnes. In the absence of an assessment using the ... the estimate of biomass for this division in 2015. Given this analysis estimated biomass at 419 tonnes ... CCAMLR decision rules, the re-estimation of the geometric mean of Petersen biomass estimates is used as ...
Meeting Document : WG-SAM-15/11 : Autor(es): Delegation of France
-
Research plan for the exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2 in 2015/16
Abstract: Most things related to Dissostichus spp. in the eastern side of Antarctic has not been ... sizes were vulnerable with a big range of about 1,000-2,000 t per SSRU in 58.4.1. During the 2004-2014 ... more recapture. The food-web of Dissostichus spp. has started to be studied in the southern Ross Sea ... Republic of Korea Title: Research plan for the exploratory longline fishery for Dissostichus spp. in ...
Meeting Document : WG-SAM-15/07 : Autor(es): Delegation of the Republic of Korea
-
Revised research plan for the exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2 in 2015/16
Abstract: Most things related to Dissostichus spp. in the eastern side of Antarctic has not been ... sizes were vulnerable with a big range of about 1,000-2,000 t per SSRU in 58.4.1. During the 2004-2014 ... more recapture. The food-web of Dissostichus spp. has started to be studied in the southern Ross Sea ... known well as namely the area is data poor areas. In the Division 58.4.1 there are two stocks; one ...
Meeting Document : WG-FSA-15/56 : Autor(es): Delegation of the Republic of Korea
-
Revised research plan for the exploratory longline fishery for Dissostichus spp. in Subarea 48.6 in 2014/15
Abstract: Most things related to Dissostichus spp. in the eastern side of Antarctic has not been ... increased to get more recapture. The food-web of Dissostichus spp. has started to be studied in the southern ... known well as namely the area is data poor areas. In the Division 58.4.1 there are two stocks; one ... considering the precautionary catch limit. Therefore, the catch limits that the meeting got in 2013 meetings ...
Meeting Document : WG-FSA-14/37 : Autor(es): Delegation of the Republic of Korea
-
Revised research plan for the exploratory fisheries for Dissostichus spp. in Subarea 48.6 in 2014/15
of limited number of hauls (only 13 and 14 hauls in 2013 and 2014, respectively) associated with the ... from current 50 tonnes to 100 tonnes under the exploitation rate of 3 % in order for succeeding in the ... , the estimates using the Petersen estimator were different from those using the CPUE method in other ... blocks where the Petersen estimator was applicable. Predicted numbers of tag recaptures from the ...
Meeting Document : WG-FSA-14/17 : Autor(es): Delegation of Japan
-
Results from the groundfish survey conducted in CCAMLR Subarea 48.3 in January/February 2011
prey that made a substantial contribution to the diet, occurring in 39.47% of stomachs. Catches of ... the shelf. Catch-weighted length frequencies of mackerel icefish indicated that 3+ sized fish ... tonnes. Euphausiidae was the dominant prey item in the mackerel icefish diet with increased dietary ... bottom and very few acoustic marks were observed in the water column. Themisto sp. was the only other ...
Meeting Document : WG-FSA-11/29 : Autor(es): J. Brown, S. Gregory, K. Brigden, R. Benedet, O. Hogg, P. Brewin and L. Featherstone (United Kingdom)
-
Pop-off Satellite Tagging in the Ross Sea Region in 2016
-off satellite archival tags (PSAT) tags. Fish were tagged as part of research longline efforts in the ... Abstract: In 2016, the USA and New Zealand began a collaborative initiative to describe Antarctic ... toothfish (Dissosticus mawsoni) movement and habitat preferences in the Ross Sea (Subarea 88.1) using pop ... southern shelf and northern seamount regions. A total of 10 PSAT tags of two tag types were released on the ...
Meeting Document : WG-FSA-16/57 : Autor(es): C.D. Jones, S.J. Parker, A. Dunn, D. Di Blasi and D. Stevens
-
Preliminary reports on abundance and biological information on toothfish in Divisions 58.4.4a and 58.4.4b by Shinsei Maru No. 3 in the 2009/10 season
the total samples in SSRUs. Mean CPUEs of D. eleginoides for 71 hauls where only Trot line system was ... larger than mean CPUEs of 11.0 indiv. / 1,000 hooks and 108.0 kg / 1,000 hooks in the same Division in ... decision in the 28th CCAMLR Meeting of the Commission (28th CCAMLR report paragraph 4.43). This report ... described the results preliminarily during the survey in four SSRUs of Ob Lena Bank. The catch amounted the ...
Meeting Document : WG-SAM-10/14 : Autor(es): K. Taki, M. Kiyota and T. Ichii (Japan)