Search results
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Possible effects of different levels of krill fishing on predators – some initial modelling attempts
predator species. A 'one-way' interaction model is developed, in which krill abundance ... for management recommendations. A mathematical framework for a 'two-way' interaction model (including ... . A 'one-way' interaction model is developed, in which krill abundance fluctuations impact ... for management recommendations. A mathematical framework for a 'two-way' interaction model (including ... and S? will be discussed in the following section. ONE-WAY INTERACTION: PREDATORS A4FFECTED BY KRILL ABUNDANCE ... ' interaction model is developed, in which krill abundance fluctuations impact on the predator population ... for management recommendations. A mathematical framevvork for a 'two-way' interaction model (including also ... espPces predatrices de krill. 11s creent un modele d'interaction '8 sens unique' dans lequel les ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 79–97 : Author(s): Butterworth, D.S. and R.B. Thomson
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Sea-surface temperature and krill catches around South Georgia in December–February 1989–1991 and 1999–2001
1989–1991 and 1999–2001 Abstract / Description: Monitoring of sea-surface temperatures (SSTs ... to 39 766 tonnes in 2000/01. The SST maps for 1999–2001 showed a prominent advection of Weddell Sea ... and 1999–2001 ... to 39 766 tonnes in 2000/01. The SST maps for 1999–2001 showed a prominent advection of Weddell ... –FEBRUARY 1989–1991 AND 1999–2001 G.P. Vanyushin VNIRO, 17a V. Krasnoselskaya Moscow 107140, Russia Email ... . However, it dropped to 39 766 tonnes in 2000/01. The SST maps for 1999–2001 showed a prominent ... est tombée à 39 766 tonnes en SHORT NOTE Vanyushin 166 2000/01. Les cartes de SST de 1999–2001 ... г. Карты ТПМ за 1999–2001 гг. показывают заметную адвекцию вод моря Уэдделла к северо-западу от Южной ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 165–174 : Author(s): Vanyushin, G.P
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Assessment of krill flux factors in waters of South Orkney Islands during summer 1996
) was located in the zone of interaction between waters of the Antarctic Circumpolar Current (ACC ... of interaction between waters of the Antarctic Circumpolar Current (ACC) and the Weddell Sea. The study area ... in Subarea 48.2. The study area (S0 X 240 n miles) was located in the zone of interaction between waters ... . A oceanographic stations; 1-16 sections of the boundary of the study area used to estimate krill flux and water ... Georgia). In order to assess the overall pattern of krill flux over the Atlantic Antarctic Section (AAS ... (ACC) and the Weddell Sea interact and have a fundamental impact on the overall pattern of krill flux ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 195–204 : Author(s): Kasatkina, S.M., V.N. Shnar, M.I. Polischuk, A.M. Abramov and V.A. Sushin
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A risk-management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems
presence and the consequences of interaction with different types of gear, a risk-management framework ... of potential VMEs; scale of interactions between fishing activities and VMEs; impact of interactions on VMEs ... of interactions of bottom fishing gear with VMEs and associated uncertainties from risk analysis is combined ... of uncertainty surrounding both the evidence of VME presence and the consequences of interaction with different ... of uncertainty surrounding both the evidence of VME presence and the consequences of interaction with different ... of current and proposed fishing activities; evidence of potential VMEs; scale of interactions between ... fishing activities and VMEs; impact of interactions on VMEs; and recovery potential of VMEs. (ii) Risk ... evaluation. Information on likelihood and consequences of interactions of bottom fishing gear with VMEs ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 177–193 : Author(s): Martin-Smith, K
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Assessment and tag program adaption methods for exploratory fisheries in the CAMLR Convention Area: an example application for Division 58.4.3a
. Algorithm for adapting the catch limit and tagging rate In this section an algorithm for adapting catch ... error CV was increased from 5–10% to 20% – most likely an interaction between the uncertainty ... this interacts with the decision rules. More established toothfish stock assessments with tagging programs ... - toration of images. IEEE Trans. Pattern Analysis and Machine Intelligence, 6: 721–741. Hampton ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 101–113 : Author(s): Hillary, R.M
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Scientific observations in CCAMLR fisheries – past, present and future
reliable data on seabird interactions with fi shing operations (Miller et al., 2004). In order ... to select and make copies of relevant sections for observers. This structure also enables individual ... sections of the manual to be modifi ed and distributed to all Members without the need to re-issue ... Hauling information Environmental conditions Marine mammal interaction with fishing gear Seabird ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 81–98 : Author(s): Sabourenkov, E.N. and E. Appleyard
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Analysis of variability of krill size and fish by-catch in the Japanese krill fishery based on scientific observer data
and vessels. The potent interaction effect between year and subarea suggests large spatio–temporal variability ... hardly show difference among years, subareas and vessels. The potent interaction effect between year ... , subareas and vessels. The potent interaction effect between year and subarea suggests large spatio ... , subarea effect and their interaction effect on the variation of krill length as follows: ij i j ijY ... and γij represent the effect of year i, the effect of subarea j, and their interaction effect ... the year effect, the subarea effect, and their interaction effect on the variation of the number ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 31–47 : Author(s): Okuda, T. and M. Kiyota
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Antarctic krill and ecosystem management – from Seattle to Siena
000 tonnes in 1982 and a total of 6.1 million tonnes being taken between 1973 and 2001 (Figure ... should be assessed and monitored; (ii) ecological interactions between harvested and other species ... 2), an additional defi ciency in the application of MSY arises from the need to account for interactions between ... , 1986b). Thus, krill interactions are not only relevant to species at similar or lower trophic levels ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 175–212 : Author(s): Miller, D.G.M
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Using ecosystem monitoring data to detect impacts
. Monitoring programs often focus on the average health or performance of individuals within indi- cator ... for such species (Butterworth and Thomson, 1995; Constable, 2001). The CCAMLR Ecosystem Monitoring Program ... availability of the primary prey species of the monitored predator (Reid and Croxall, 2001; Barlow et al ... (Constable, 2001, 2002), for example by triggering tactical adjustments to catch limits in relatively small ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 197–212 : Author(s): Hill, S.L., J. Forcada, P.N. Trathan and C.M. Waluda
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Killer whale (Orcinus orca) and sperm whale (Physeter macrocephalus) interactions with longline vessels in the Patagonian toothfish fishery at South Georgia, South Atlantic
Paper Title: Killer whale (Orcinus orca) and sperm whale (Physeter macrocephalus) interactions ... / Description: Killer whale (Orcinus orca) and sperm whale (Physeter macrocephalus) interactions with longline ... , were present during 5% of haul observations. A high inter-vessel variation was noted for interactions ... showed that interactions occurred over a wide geographic range. These were mostly correlated ... of depredation Observers monitored 78% of hauls for marine mammal interactions during the 2001 and 2002 ... , 2001 and 2002 seasons. 119 Killer and sperm whale interactions with longline vessels whale ... interactions occurred with killer whales and sperm whales at South Georgia during the 2001 and 2002 seasons ... Table 5: The catch rates of toothfish in the 2001 season, for hauls during which interactions occurred ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 111–126 : Author(s): Purves, M.G., D.J. Agnew, E. Balguerías, C.A. Moreno and B. Watkins