Search results
-
Preliminary results of the third CCAMLR sponsored research survey to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea, February 2014
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... abundance from a well-designed survey could be a useful input into the Ross Sea stock assessment model. The ... first survey was completed in February 2012 (), and the second survey was completed in February 2013 ... (Parker et al. 2013). In this paper we provide preliminary results of the third survey in the time series ...
Meeting Document : WG-SAM-14/24 : Author(s): S. Mormede, S.J. Parker, S.M. Hanchet, A. Dunn (New Zealand) and S. Gregory (United Kingdom)
-
An Apparent Decrease in the Prevalence of “Ross Sea Killer Whales” in the Southern Ross Sea
Abstract: Killer whales (Orcinus orca), both ecotype-B and-C, are important to the Ross Sea ... , Antarctic ecosystem; the type-C is referred to as “Ross Sea [RS] killer whale”. Herein, we review data on ... occurrence patterns and diet of RS killer whales, and present new information on numbers observed in the ... southwestern Ross Sea, 2002- 2008. These “resident” whales appear to feed principally on fish, including the ...
Meeting Document : WG-EMM-09/P01 : Author(s): D.G. Ainley, G. Ballard and S. Olmastroni
-
Swarm characteristics of Antarctic krill Euphausia superba relative to the proximity of land during summer in the Scotia Sea
Abstract: We studied the relationship between the proximity of land and the distribution and ... swarming characteristics of Antarctic krill across the Scotia Sea in January and February 2003. Krill ... -sectional areas of swarms were significantly larger inshore, with a mean value of 120 m 2 in the 0 to 50 km ... zone compared to <80 m 2 further offshore. The packing concentration of krill within inshore swarms ...
Meeting Document : WG-EMM-10/P09 : Author(s): T. Klevjer, G.A. Tarling and S. Fielding
-
The use of electronic monitoring camera system for the toothfish fishery in CCAMLR Subarea 48.3: a study case to help CCAMLR
Abstract: Sampling methods to determine the composition and nature of the catch of the longlining ... CCAMLR observers deployed on the fishing fleet. The collection of this data is important for the ... assessment and management of the fishery. This independent estimation of the total catch in the fishery ... a reasonable figure/rate of line observation for each setting of the lines. A video recording system ...
Meeting Document : WG-FSA-14/27 : Author(s): R.A. Benedet (United Kingdom)
-
Increasing abundance of Type A killer whales (Orcinus orca) in the coastal waters around the Antarctic Peninsula
Abstract: The physical marine environment around the Antarctic Peninsula (AP) is rapidly changing ... and we need to understand the impact on marine ecosystems. A diverse community of killer whales ... (Orcinus orca; Types B1, B2 and A) are important top predators around the AP, but there are currently no ... data on their abundance or trends. Most research to date has focused on the pagophilic Type B killer ...
Meeting Document : WG-EMM-17/49 : Author(s): H. Fearnbach, J.W. Durban, D.K. Ellifrit and R.L. Pitman
-
The efficacy of video-based electronic monitoring technology for at-sea monitoring of the halibut longline fishery
Abstract: This project involved the large-scale deployment of electronic monitoring (EM) systems ... on the 2002 British Columbia halibut longline fishery to evaluate the feasibility of EM as an ... groupings, and the 15 fish most abundant species accounted for 98% of the catch. Data from fishing trips ... %, and individual identifications by hook agreed in over 90% of the catch records. EM reliably (i.e ...
Meeting Document : WG-FSA-03/100
-
Seabird mortality in the longline fishery for Patagonian toothfish at the Prince Edward Islands: 1996–1997
Abstract: Longline fishing for Patagonian toothfish Dissostichus eleginoides commenced at the ... . This paper summarizes the mortality of seabirds associated with this fishery during the year July 1996 ... fishing trips. Some 3.2 million hooks were observed during the period November-June, representing 84 % of ... the estimated 3.8 million hooks set by permit-holders in the South African Exclusive Economic Zone ...
Meeting Document : WG-FSA-97/51 : Author(s): Boix-Hinzen, C., Enticott, J.W., Ryan, P.G., Wanless, R., Purves, M., Nel, D.C.
-
Tracking Antarctica, A New WWF report on the state of Antarctica and the Southern Ocean
identify the pressures and threats to the planet’s largest wilderness. WWF’s new biennial report- Tracking ... Antarctica- provides a scientific update on the state of Antarctica and the Southern Ocean. It identifies ... ways to respond to the challenges based on the latest scientific evidence to ensure the wonders of the ... Antarctic are preserved for generations to come. The report will be available publicly as a digital ...
Meeting Document : SC-CAMLR-XXXV/BG/30 : Author(s): Submitted by ASOC
-
Notes on the commercial krill harvest of the Japanese stern trawler Chiyo Maru No. 5 in Subarea 48.1
Abstract: The Japanese stern trawler Chiyo maru No. 5 conducted krill fishing operations in ... CCAMLR Subarea 48.1 during February, 2000. Under an agreement by the Japanese and United States ... governments, a CCAMLR International Scientific Observer was present on the vessel. This paper presents much of ... the information collected in graphical form, and serves as a compliment to the Final Report of ...
Meeting Document : WG-EMM-00/15 : Author(s): C. Jones (USA)
-
Studies on zooplankton with special reference to krill from the Indian Ocean sector of the Southern Ocean
Abstract: Distribution, abundance and species composition of zooplankton collected during the ... 303.62m1./100m-3 (x=142.14±77.02). High standing stock values were recorded in the study area where ... copepods, chaetognaths, euphausiids and salps were the dominant taxa. Copepoda formed the major constituent ... of zooplankton community and the population density ranged fiom 650 to 7209/100 m-3 of zooplankton ...
Meeting Document : WG-EMM-98/35 : Author(s): K.L. Bhat, R. Vijayakumar and V. Jaya Sree (India)