Search results
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Assessment of yield and status of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean: implications for managing by-catch in CCAMLR fisheries
data were taken from a trawl survey conducted at Macquarie Island in 1999. Where parameters were not ... long-term annual yield calculated for M. carinatus was 550 tonnes, based on a critical value of y of ... of the median pre-exploitation spawning biomass. This assessment could be used as a basis for setting ... critical y to the mean density observed in the survey results gives a catch rate of 5.81 kg/km2 which ...
Meeting Document : WG-FSA-99/69 : Author(s): E.M. van Wijk, A.J. Constable, R. Williams and T. Lamb (Australia)
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30 years of krill fisheries management – challenges remain
sector, an area that has been warming rapidly, resulting in a reduction in the extent and duration of ... winter sea ice. CCAMLR needs to maintain a precautionary approach to krill fisheries management. The ... establishment of CM 51-07 – distributing the trigger limit among statistical subareas – was a step in the right ... review of CEMP has become a high priority for the Working Group on Ecosystem Management and Monitoring ...
Meeting Document : CCAMLR-XXX/BG/19 : Author(s): Submitted by ASOC
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Population assessment of Patagonian toothfish in Subarea 48.4 – 2011 update
catch at age model generates a yield of 52 tonnes based on CCAMLR decision rules. In 2006 the northern ... , and for the purpose of the experimental work leading to a stock assessment. Data collected in the ... fishing controlled by maintenance of current north-south area boundaries, application of a D. eleginoides ... 52 tonne catch limit to both areas with a sub-division of 5 tonnes allocated specifically for D ...
Meeting Document : WG-FSA-11/38 : Author(s): J. Roberts, R. Mitchell and R. Wakeford (United Kingdom)
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Beach litter survey Signy Island, South Orkney Islands, 1993/94
Abstract: A beach litter survey was carried out on Signy Island, South Orkney Islands during the ... clues regarding their origin noted. At Foca Cove, a total of 118 items were recovered with a combined ... weight of 18.35 kg. At Cummings Cove, a total of 170 items were recovered (6.21 kg) and at Starfish Cove ... , a total of 6 items were found (0.30 kg). It is clear that almost all debris found originates from ...
Meeting Document : CCAMLR-XIII/BG/11 : Author(s): Delegation of United Kingdom
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Swarm characteristics of Antarctic krill Euphausia superba relative to the proximity of land during summer in the Scotia Sea
swarms identified with a Simrad EK60 (38 kHz, 120 kHz) echosounder were grouped into 4 categories ... -sectional areas of swarms were significantly larger inshore, with a mean value of 120 m 2 in the 0 to 50 km ... ind. M–3 elsewhere. A large proportion of the biomass was concentrated into a small number of large ... 100 km zone. However, a significantly greater number of large, biomass-rich swarms occurred in the 0 ...
Meeting Document : WG-EMM-10/P09 : Author(s): T. Klevjer, G.A. Tarling and S. Fielding
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Bird Exclusion Devices for use in CCAMLR Longline Fisheries
; requires the use of a 'device to discourage birds from accessing baits during the haul of longlines ... of effective BEDs as a deterrence of birds from flying directly into the area where the line is being ... than specify a single BED configuration CCAMLR agreed to provide illustrative examples of BEDs that ... factors may be important. A BED configuration that demonstrates the two characteristics is shown in the ...
Page : Site Section: Fisheries
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An updated spatially explicit population dynamics operating model for Antarctic toothfish in the habitable depths of the Ross Sea region
model for Antarctic toothfish in the Ross Sea region, for a medium scale spatial resolution (189 spatial ... population was restricted to those cells in which at least 5% of cell area was of a depth deemed suitable as ... unsatisfactory in previous models, with a much flatter maturity ogive than that derived through histology. In the ... that a proportion of the mature fish spawn each year. The model estimation of the maturity ogive is now ...
Meeting Document : WG-SAM-14/31 : Author(s): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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UAV for monitoring environmental changes on King George Island (South Shetland Islands) Antarctica: preliminary study on wildlife disturbance
they are a new tool used in ecological research and monitoring. In this preliminary study we ... by combustion engine, symptoms of vigilance were noticed with penguins looking up and around for a ... behavior was observed during the overflights. Plans for a systematic monitoring of UAV impact on wildlife ... , as well as preliminary guidelines for the next field season were formulated. Author(s): A. Kidawa, M ...
Meeting Document : WG-EMM-15/50 : Author(s): A. Kidawa, M. Korczak-Abshire, A. Zmarz, R. Storvold, M. Rodzewicz, K. Chwedorzewska, S-R. Karlsen and A. Znój (Poland)
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Informing and seeking advice from WS-SM 2018 about the revisions of the WSMPA proposal
Abstract: Following the submission of a first draft Conservation Measure for establishing a MPA ... and will submit a revised CM proposal to CCAMLR 2018. This document informs The Workshop on Spatial ... 48.5 as a result of further analyses and modelling of the habitat of adult Antarctic toothfish ... outcome of the CCAMLR Workshop for the Development of a D. mawsoni Population Hypothesis for Area 48. The ...
Meeting Document : WS-SM-18/08 : Author(s): S. Hain, K. Teschke, H. Pehlke and T. Brey
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The migration patterns of Electrona carlsbergi (Tåning, 1932)
of age, indicating dominance by a single cohort. Moreover, a very similar size composition in the ... SPFZ is evident from both a seasonal and interannual point of view. The proportion of immature ... specimens in the Subantarctic zone, classified as a breeding area, decreases to 20-40%, while the number of ... the early stages of its life cycle, a theory has been put forward concerning the presence in the notal ...
Meeting Document : WG-FSA-93/18 : Author(s): A.N. Kozlov (Russia)