Search results
-
An assessment of the impact of krill fishery on penguins in the South Shetlands
Abstract: The competition between Japanese krill fishery and penguins during their breeding ... season (December-March) in the South Shetland Islands (Subarea 48.1) was assessed based on available ... information on fishery, penguins and krill biomass. The catch is very low in December followed by roughly ... equivalent amount (3,000-10,000 t/10-day) for the following three months, with its increased fishing ...
Meeting Document : WG-KRILL-93/07 : Author(s): T. Ichii, M. Naganobu and T. Ogishima (Japan)
-
Further progress on modelling the krill–predator dynamics of the Antarctic ecosystem
Abstract: This paper addresses work conducted on the Mori-Butterworth multi-species model of the ... Antarctic ecosystem subsequent to the Ulsan meeting of the IWC Scientific Committee. Points raised about the ... unable to fully utilise the primary production available. The precision of parameters estimated when ... fitting the model to abundance and trend data is reported. The model is extended to include an “other ...
Meeting Document : WG-EMM-06/19 : Author(s): M. Mori (Japan) and D.S. Butterworth (South Africa)
-
Descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 & 88.2 for the years 2000–01 to 2012–13
Abstract: We provide an update of the descriptive analyses of the toothfish tagging programme in ... Subareas 88.1 and 88.2, including summaries of data for the 2013 season. Overall, a total of 37 047 ... released and 95 recaptured since 2001. In recent years, most vessels have achieved or exceeded the required ... tagging rate of one toothfish per tonne of catch in the Ross Sea region. Tag recapture data showed that ...
Meeting Document : WG-FSA-13/49 : Author(s): S. Parker, A. Dunn, S. Mormede and S. Hanchet (New Zealand)
-
Preliminary results on the distribution of fin whales on the northern Antarctic Peninsula
Abstract: Results presented here contribute to the currently poor knowledge of fin whales ... (Balaenoptera physalus) in Southern Ocean, based on preliminary results regarding the distribution of the ... species around the northern Antarctic Peninsula. We show a broad view of the sightings based on data ... collected from 2013 to 2018 by the Brazilian Antarctic Program the Polar Vessel (NPo) Almirante Maximiano ...
Meeting Document : WG-EMM-18/43 : Author(s): E. Seyboth, L. Dalla Rosa, G. Watters and E.R. Secchi
-
ADDRESSING UNCERTAINTY OVER THE IMPORTANCE OF ANTARCTIC TOOTHFISH AS PREY OF SEALS AND WHALES IN THE SOUTHERN ROSS SEA: A REVIEW
Abstract: An uncertainty heretofore has existed over the importance of Antarctic toothfish ... (Dissostichus mawsoni) as prey of top predators in the Ross Sea. We reviewed the literature to assess the ... show the seals do not eat toothfish hard parts, thus providing the reason that toothfish have seldom ... populations where toothfish do not occur. On the basis of data from an under ice observation platform, non ...
Meeting Document : WG-EMM-08/22 : Author(s): D. Ainley and D. Siniff (USA)
-
An integrated stock assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery (Division 58.5.2)
eleginoides) at the Heard and the McDonald Islands (Division 58.5.2) with data until mid August 2014. This ... paper presents a bridging analysis and proposes a new base case assessment model which is based on the ... best available estimates of model parameters, the use of abundance estimates from a random stratified ... composition data to aid with the estimation of year class strength and selectivity functions of sub-fisheries ...
Meeting Document : WG-FSA-14/34 : Author(s): P. Ziegler, D. Welsford, W. de la Mare and P. Burch (Australia)
-
Improving the process for the establishment of marine protected areas by CCAMLR and Antarctic Treaty Parties
Abstract: This paper examines the obligations upon the Commission for the Conservation of ... -operate in the establishment and implementation of MPAs in the Southern Ocean. It also examines the ... current process for declaring MPAs in the areas of application of the Antarctic Treaty and the Convention ... on the Conservation of Antarctic Marine Living Resources (the Convention) and suggests improvements ...
Meeting Document : WS-MPA-05/09 : Author(s): Delegation of Australia
-
The foraging range of Adelie penguins at Bechervaise Island, Mac. Robertson Land, Antarctica, and its overlap with the krill fishery
Abstract: The foraging ranges of six female and four male Adélie penguins breeding at Bechervaise ... Island near Mawson Station (Mac. Robertson Land) were determined by satellite tracking, using the ARGOS ... system. Birds were tracked over four foraging trips (by 2 females and 4 males) during the incubation ... birds were feeding chicks. Most birds made foraging trips to the continental shelf break (1000m isobath ...
Meeting Document : WG-CEMP-92/36 : Author(s): K.R. Kerry, J.R. Clarke and G.D. Else (Australia)
-
ESTIMATION OF MANAGEMENT REFERENCE POINTS CONSISTENT WITH THE CATCH TRIGGER LEVEL FOR THE ANTARCTIC KRILL FISHERY IN AREA 48
Abstract: The Generalised Yield Model was used to estimate fishing mortality and spawning stock ... biomass reference points for the krill fishery in CCAMLR Area 48 consistent with the catch trigger level ... analyse the sensitivity of the estimates of the reference points to recruitment variability. The estimates ... of F and SSB reference points for the krill stock in Area 48 consistent with the catch trigger level ...
Meeting Document : WG-EMM-11/17 : Author(s): T. Peatman, J. Moir Clark, D.J. Agnew (UK)
-
To the question for bioregionalisation of the Antarctic waters with ecosystem approach
Abstract: The nature of the composition (structure) and distribution Antarctic marine living ... resources to determine by position of the South Ocean and originaly it's geographic isolation unity ... Carrent sistem (ACC), but to circumpolar distribution of the whales, seals, seabirds, fishes, squids ... , species of macro- and mesoplancton, algaes and protosoa, in other words all the components of ecosistem ...
Meeting Document : SC-CAMLR-XXV/BG/18 : Author(s): Delegation of Russia