Результаты поиска
-
Beach debris survey Signy Island, South Orkney Islands 1997/98
debris items collected from the beaches was the lowest recorded since the surveys began in 1990. This ... fishing vessels brought into force by CCAMLR in 1996, 36% of the debris found at Signy were packaging ... bands although the number recovered has been decreasing since 1993/94. The reduction in debris reported ... at Signy Island in 1997/98 continues a promising trend. However the considerable amount of plastic ...
Meeting Document : CCAMLR-XVII/BG/20 : Автор(ы): Delegation of the United Kingdom
-
FURTHER DEVELOPMENTS OF A SIMULATION MODEL, ‘PATCH’, FOR EVALUATING MANAGEMENT STRATEGIES TO CONSERVE BENTHIC HABITATS (VULNERABLE MARINE ECOSYSTEMS) WHICH ARE POTENTIALLY VULNERABLE TO IMPACTS FROM BOTTOM FISHERIES
ecosystems’ in order to maintain the ecological structure and function of, particularly, deep sea benthic ... uncertainties to be captured in a straight-forward manner to assist CCAMLR in maintaining its precautionary ... approach in managing Antarctic fisheries. The model is ready for use by WG-FSA this year to begin ...
Meeting Document : WG-FSA-09/42 : Автор(ы): A.J. Constable (Australia)
-
SEABIRD: DRAFT USER MANUAL V1.00-2008/06/18
that allows a great deal of flexibility in specifying the population dynamics, parameter estimation ... modelled population in the way that best suits the available data. Depending on these data the user may ... stage (e.g., immature or mature), sex, or behaviour (e.g., in any year mature birds may be classified as ... of events in a model year. A wide variety of types of data can be used. Estimation can be by maximum ...
Meeting Document : WG-SAM-08/P03 : Автор(ы): D. Fu and R.I.C.C. Francis (New Zealand)
-
Acoustic discrimination of southern ocean zooplankton
Abstract: Acoustic surveys in the vicinity of the sub-Antarctic island of South Georgia revealed ... the existence of a number of horizontally extensive yet vertically discrete scattering layers in the ... employed for fishery acoustics, it is possible to discriminate in situ between several zooplanktonic taxa ... , taxa which in some instances exhibit similar gross morphological characteristics and have overlapping ...
Meeting Document : WG-EMM-97/54 : Автор(ы): Watkins, J.L., Brierley, A.S., Goss, C., Ward, P.
-
Zooplankton target strength: volumetric or areal dependence?
system. Experiments were conducted with live, tethered individuals in an enclosure filled with filtered ... Born Approximation Model (Chu et al., 1993), indicated that animal behavior is an important factor in ... the scattering characteristics of zooplankton. In addition, because scattering from individual ... zooplankton is highly non-linear, especially in the geometric scattering region (ka>l), linear regressions ...
Meeting Document : WG-Krill-94/13 : Автор(ы): D.A. Demer and L.V. Martin (USA)
-
Beached marine debris surveys and incidences of seabird/marine mammal entanglements and hydrocarbon soiling at Bird Island and King Edward Point, South Georgia, and Signy Island, South Orkneys, 2009/10
Abstract: Data were collected at Bird Island, South Georgia and Signy Island, South Orkneys as in ... (November 2009 to March 2010). Plastic and longline fishing line were the most commonly observed items (in ... net) and none were observed at Signy. In total, 149 items of marine debris were found in association ...
Meeting Document : SC-CAMLR-XXIX/BG/10 : Автор(ы): Delegation of the United Kingdom
-
Ocean acidification and the Southern Ocean
, including the Southern Ocean. The relative undersaturation of CaCO3 in the Southern Ocean suggests that ... assumes “business as usual”- emissions leading to 778 ppm of CO2 in the atmosphere by 2100- aragonite will ... develop research programs to fill in the gaps of current research on Southern Ocean impacts as soon as ... processes besides calcification in invertebrates and vertebrates. Ocean acidification is relevant to ...
Meeting Document : CCAMLR-XXIX/BG/24 : Автор(ы): ASOC Observer
-
The relative impacts of Autolines and Spanish longlines on vulnerable marine ecosystems
limited. We used data collected by the longline fishery in Subarea 88.1 to compare the impacts of ... type, we attributed the difference in rates at which positive bycatches decreased with depth to a ... difference in the rate at which VME taxa drop off Autolines relative to Spanish longlines while the gear is ... unit fishing effort. Limiting the use of Autolines, which are in more intimate contact with the sea ...
Meeting Document : WG-FSA-12/27 : Автор(ы): T. Gerrodette and G. Watters (USA)
-
Marine debris and entanglements at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2012/13
Point and zero at Signy Island and Goudier Island. In total, 85 items of marine debris were found in ... association with seabird colonies at Bird Island, most commonly in association with wandering albatrosses (45 ... lowest recorded in 23 years of summer surveys at Signy Island, possibly due to sea-ice coverage at the ...
Meeting Document : SC-CAMLR-XXXII/BG/05 : Автор(ы): Delegation of the United Kingdom
-
How similar are CEMP indices from adjacent locations? A case of study using Pygoscelis adeliae and P. papua monitoring data from three breeding colonies on King George Island
in a feedback management strategy and for identifying critical gaps in monitoring effort where new ... across sites in census data, implying similar information is being collected at all three sites. We also ... found evidence of and site- and species-specific differences that highlight heterogeneity in indices of ...
Meeting Document : WG-EMM-14/43 : Автор(ы): M.M. Santos (Argentina), M. Korczak-Abshire (Poland), M.A. Juáres (Argentina), W.Z. Trivelpiece and J.T. Hinke (USA)
Страницы
- « первая
- ‹ предыдущая
- …
- 490
- 491
- 492
- 493
- 494
- 495
- 496
- 497
- 498
- …
- следующая ›
- последняя »