Search results
-
Preliminary tag-recapture based population assessment of Antarctic toothfish in Subarea 48.4
Abstract: The stock of Antarctic toothfish (D. mawsoni) in CCAMLR subarea 48.4 is estimated from ... tagging returns to be 982 tonnes in 2018. Applying the CCAMLR agreed precautionary assumption of average ... biomass across the time series and harvest rate of γ = 0.038, implies a 2018/19 yield of 37 tonnes ... , unchanged from the 2017/18 catch limit. Historically, a precautionary approach has been applied in treating ...
Meeting Document : WG-FSA-18/26 : Author(s): T. Earl and A. Riley
-
Detection of predator dive patterns from stationary echosounder data
Abstract: Standard protocols for processing of echosounder data are geared towards the estimation ... of biomass indices of pelagic organisms. More transient visitors to the watercolumn however also give ... echoes, and the data provided by the echosounders may be used to assess the behaviour of these organisms ... , as well as their interactions with the pelagic residents. Using freely available software and neural ...
Meeting Document : WG-EMM-2019/34 : Author(s): T. Klevjer and G. Skaret
-
Estimates of local biomass with uncertainty for Antarctic (Dissostichus mawsoni) and Patagonian (D. eleginoides) toothfish in research blocks in Subareas 48.6 and 58.4
estimated using a CPUE-by-seabed-area analogy method and Chapman tag-recapture methods following the advice ... of WG-SAM. The trend analysis decision rules developed by WG-FSA 17 were applied to provide catch ... limits for 2018/19. The only research blocks in which there were adequate recaptures were 486_2, 486_3 ... and 486_4. However, as the trend in all three of these research blocks was declining the revised catch ...
Meeting Document : WG-FSA-18/12 : Author(s): CCAMLR Secretariat
-
CCAMLR Staffing and Salary Strategy (2019–2022)
Abstract: In 2017 SCAF directed the Secretariat to undertake a review of its Strategic Plan and ... its Staffing and Salary Strategy. Internal and external feedback received during the review supports a ... need to increase the proportion of IP positions at the Secretariat, and to strengthen the Secretariat’s ... current and future needs. The Secretariat proposes a new Strategic Plan to deliver these changes, to ...
Meeting Document : CCAMLR-XXXVII/21 Rev. 1 : Author(s): Executive Secretary
-
Evaluating MPA scenarios in Planning Domain 1 using a dynamic food-web model
Abstract: We describe a spatially and temporally dynamic food-web model of the region surrounding ... the Western Antarctic Peninsula that can be used to evaluate the potential impacts of various marine ... protected area (MPA) scenarios. We evaluate four MPA scenarios, including two representing portions of the ... General Protection Zone presented by the Delegations of Argentina and Chile (SC-CAMLR- XXXVI/18). Our ...
Meeting Document : SC-CAMLR-XXXVII/BG/04 : Author(s): Delegation of the USA
-
Meta-analysis of catch reporting in CCAMLR exploratory fisheries
Abstract: The Secretariat has prepared a meta-analysis of the target and by-catch reported in ... CCAMLR exploratory fisheries (as an update to WG-FSA-15/04 Rev. 1). The number of fish belonging to ... target species divided by the total number of fish caught (the target catch ratio) is used as simple ... metric of the relative level of target and by-catch reported for each haul. This index showed little ...
Meeting Document : WG-FSA-18/14 : Author(s): CCAMLR Secretariat
-
Report of the SC-CAMLR Observer (Japan) to the Fourth Meeting of the Scientific Committee of the Southern Indian Ocean Fisheries Agreement (SIOFA) (Yokohama, Japan, 25 to 29 March 2019)
Abstract: The Fourth Meeting of the Scientific Committee (SC4) of the Southern Indian Ocean ... Fisheries Agreement (SIOFA) was held at the National Institute of Fisheries Science, in Yokohama, Japan from ... 25 – 29 March 2019. Takehiro Okuda (Japan) was the nominated CCAMLR Observer at the SC4 meeting and ... the CCAMLR Secretariat’s Science Manager attended at the invitation of the Executive Secretary of ...
Meeting Document : SC-CAMLR-38/BG/12 : Author(s): SC-CAMLR Observer (Japan)
-
Krill associated ecosystem studies in the western Indian Ocean sector of the Southern Ocean during austral summer
the Western Indian Ocean sector of the Southern Ocean, through in-situ ship survey in the area during ... Austral summer 2019-20. The proposed objectives are to to understand the distribution and biomass of krill ... in the western Indian Ocean Sector of the Southern Ocean, to relate larval/adult krill with the ... prevailing oceanographic/environmental set-up, to examine the spatial pattern of the resource and the forcing ...
Meeting Document : WG-EMM-2019/79 : Author(s): B.R. Smitha, H. Manjebrayakath, C.R. Asha Devi, N. Saravanane and M. Sudhakar
-
Results from the 2019 annual acoustic krill monitoring off the South Orkney Islands
Abstract: In 2019, the annual IMR regional krill monitoring survey off the South Orkneys was ... conducted by RV Kronprins Haakon as part of the Scotia Sea large scale krill monitoring effort. To allow for ... comparison with previous survey years and provide some context for the large scale survey estimate, we here ... present the results from the 2019 regional survey processed and analysed in the same way as the annual ...
Meeting Document : WG-EMM-2019/69 : Author(s): G. Skaret, B.A. Krafft, G. Macaulay, T. Knutsen and O.A. Bergstad
-
Approaches to data collection and analysis for detecting and quantifying functional overlap at the scale of the individual vessell
Abstract: Summary Over the past years, the subject of whether there is a functional overlap ... between the krill fishery and pelagic krill predators has been discussed throughout the SC-CAMLR Working ... interactions and competition between the krill fishery and krill-dependent predators during fishing operations ... monitoring. The Scientific Committee noted that consideration is needed on what specific scientific questions ...
Meeting Document : WG-EMM-18/33 : Author(s): M. Söffker and N. Gasco