Resultados de la búsqueda
-
USING GENERALIZED DISSIMILARITY MODELLING TO ANALYSE AND PREDICT PATTERNS OF BETA DIVERSITY IN REGIONAL BIODIVERSITY ASSESSMENT
predicting spatial patterns of turnover in community composition (beta diversity) across large regions. The ... nonlinearity commonly encountered in large-scaled ecological data sets: (1) the curvilinear relationship ... between increasing ecological distance, and observed compositional dissimilarity, between sites; and (2 ... ) the variation in the rate of compositional turnover at different positions along environmental ...
Meeting Document : WS-VME-09/P03 : Autor(es): Richardson, K., Manion, G., Ferrier, S., Elith, J.
-
Accumulation of fishing debris, plastic litter and other artefacts on Heard Island and Macquarie Island, Southern Ocean
summer 1987-88, and 1989 respectively. These surveys were carried out at the same sites of previous ... surveys in 1986-87 at Heard Island, and 1988 at Macquarie Island. The minimum rate of artefact ... . Drift cards released from known locations and collected on the two islands show a similar artefact ... catchment area. Plastic litter was a major component of the debris at both islands. Fisheries related debris ...
Meeting Document : CCAMLR-VIII/BG/11 : Autor(es): D.J. Slip and H.R. Burton (Australia)
-
Adélie penguin breeder abundance in CCAMLR Divisions 58.4.1 and 58.4.2
Abstract: WG-EMM-STAPP is charged with estimating krill consumption by the major air-breathing ... predators of the Southern Ocean including ice-breeding seals, fur seals, penguins and flying seabirds. The ... priority region for estimation is Area 48, but the krill consumption estimates are also being developed for ... other regions around Antarctica under the work program of WG-EMM-STAPP as a basis for management of ...
Meeting Document : WG-EMM-13/09 : Autor(es): C. Southwell, J. McKinlay, L. Emmerson (Australia), A. Takahashi (Japan), C. Barbraud, K. DeLord and H. Weimerskirch (France)
-
CCAMLR conservation measures: a review
living resources. The first measure was introduced in 1984, and the number of measures in force each year ... has grown rapidly since that time; 61 measures were in force in 2000/01. The majority of conservation ... measures focus on the management of fisheries and related activities, and most of these measures are in ... scientific sites, compliance requirements and CCAMLR’s Catch Documentation Scheme for Dissostichus spp. Ten ...
Meeting Document : CCAMLR-XX/BG/04 : Autor(es): Secretariat
-
Mortality of macaroni penguins (Eudyptes chrysolophus) at Marion Island caused by avian cholera (Pasteurella multocida) in 2004/05
Macaroni Penguins Eudyptes chrysolophus at the colony at Kildalkey Bay during November 2004. Other colonies ...
Meeting Document : WG-EMM-05/37 : Autor(es): R.J.M. Crawford, B.M Dyer, M.S. De Villiers, G.J.G. Hofmeyr and D. Tshingana (South Africa)
-
Persistent organic pollutants in stomach contents of Adélie penguins from Edmonson Point (Victoria Land, Antarctica)
input of these persistent organic pollutants (POPs) through diet also was evaluated. The following ... concentration gradient of PCB isomer-specific classes was revealed: hepta-CB??hexa-CB??penta-CB. The most ... abundant congeners were PCB189, PCB134 and PCB151, while PCB126 was the most abundant among coplanar PCBs ... contamination and penguins’ diet in relation to sex during the mating season, when observations took place ...
Meeting Document : WG-EMM-03/58 : Autor(es): S. Corsolini, S. Olmastroni, N. Ademollo, G. Minucci and S. Focardi (Italy)
-
Variations in food composition and feeding intensity of mackerel icefish (Champsocephalus gunnari) at South Georgia
Abstract: The diet composition and feeding intensity of mackerel icefish (Champsocephalus gunnari ... ) around Shag Rocks and the mainland of South Georgia was investigated in January/February 1985, January ... superba), the hyperiid Themisto gaudichaudii, mysids and in 1985 also Thysanoessa species. The proportion ... of krill and Themisto in the diet items varied considerably between the three seasons, whereas the ...
Meeting Document : WG-FSA-92/26 : Autor(es): K.-H. Kock (Germany), I. Everson (United Kingdom), S. Wilhelms (Germany), S. Campbell (United Kingdom), J. Szlakowski (Poland), G. Parkes (United Kingdom), Z. Cielniaszek (Poland) and C. Goss (United Kingdom)
-
Change-in-ratio and index-removal methods for population assessment and their application to snow crab (Chionoecetes opilio)
crabs (Chionoecetes opillio) in St. Mary's Bay, Newfoundland, before and after the fishery, and to ... for fisheries studies. We also show how to combine the two approaches in a single estimator. It is ... necessary to sample the population before and after the fishery, and to determine the total harvest and its ... composition, in order to use these methods. We use the methods to estimate the population of legal-size snow ...
Meeting Document : WS-CRAB-93/10 : Autor(es): X. Xu, E.G. Dawe and J.M. Hoenig (USA)
-
Mapping Application for Penguin Populations and Projected Dynamics (MAPPPD)
Abstract: The attached paper, now in review, describes the Mapping Application for Penguin ... to assist scientists, non-governmental organizations, and policymakers working to meet the management ... objectives as set forth by CCAMLR and other components of the Antarctic Treaty system (i.e., Antarctic Treaty ... Consultative Meetings and the Antarctic Treaty Committee on Environmental Protection). The database underlying ...
Meeting Document : CCAMLR-XXXV/BG/15 : Autor(es): Submitted by Oceanites, Inc.
-
ADULT ANTARCTIC KRILL FEEDING AT ABYSSAL DEPTHS
the Southern Ocean, and a key species in the Antarctic food web. The Discovery Investigations in the ... early 20th century, coupled with subsequent work with both nets and echosounders, indicated that the ... bulk of the population of postlarval krill is typically confined to the top 150 m of the water column ... . Here, we report for the first time the existence of significant numbers of Antarctic krill feeding ...
Meeting Document : WG-EMM-08/P01 : Autor(es): A. Clarke and P.A. Tyler