Search results
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Seabird by-catch by autoline vessels: do line setters increase the sink rate of integrated weight longlines?
in the first few metres of the water column where seabird interactions are likely to be most intense. Longlines ... astern. This increase in depth is minor and unlikely to result in substantial reductions in interactions ... of the water column where seabird interactions are likely to be most intense. Longlines deployed with the line ... in depth is minor and unlikely to result in substantial reductions in interactions between longlines ... the period from September 2001 to August 2003 when nearly 27 000 seabirds were killed (Delord et al., 2005 ... , depth and the treatment x depth interaction were treated as fixed effects and pair number, magazine ... setter were identical, including in the first few metres of the water column where seabird interactions ... in substantial reductions in interactions between longlines and seabirds in the Kerguelen and Crozet fisheries ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 107–114 : Author(s): Robertson, G., J. Williamson, M. McNeill, S.G. Candy and N. Smith
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Seabird mortality in the Patagonian toothfish longline fishery around Crozet and Kerguelen Islands, 2001–2003
respectively) killed 26 668 seabirds between September 2001 and August 2003. Overall, the white-chinned petrel ... and Kerguelen Islands, 2001–2003 Abstract / Description: The legal Patagonian toothfish (Dissostichus ... Islands (Subarea 58.6 and Division 58.5.1 respectively) killed 26 668 seabirds between September 2001 ... and August 2003. Overall, the white-chinned petrel (Procellaria aequinoctialis) was the most frequently ... 2001 and August 2003. Overall, the white-chinned petrel (Procellaria aequinoctialis) was the most ... 426 726 hooks) deployed from 1 September 2001 to 31 August 2003. A total of 26 668 seabirds were ... seasons, as suggested by the signifi cant interaction between season and moon brightness. In 2001/02 ... of 26 668 seabirds were counted as having been killed from September 2001 to August 2003 and overall ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 53–80 : Author(s): Delord, K., N. Gasco, H. Weimerskirch, C. Barbraud and T. Micol
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A possible framework in which to consider plausible models of the Antarctic marine ecosystem for evaluating krill management procedures
interact in typical energy allo- cation models (see Constable, 2001 for description). Therefore ... of an ecosystem-based management pro- cedure for krill (CCAMLR, 2001). This has entailed the Scientifi ... . This will ensure that each element can effectively interact with other elements. Figure 4 illustrates ... ’ of the element may be important, particularly if there are age/stage-specifi c interactions with other ele ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 99–117 : Author(s): Constable, A.J
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Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia
in August. Killer whale interactions appear to be more consistent with no obvious pattern between months ... towards the end of the season in August. Killer whale interactions appear to be more consistent ... encounters and pod sizes have remained relatively constant. Most interactions from sperm whales occur during ... interactions from sperm whales occur during May at the start of the season with the sightings becoming fewer ... and July, and 21% in August. Figure 2 shows the distribution of interactions for both species by month ... have remained relatively constant. Most interactions from sperm whales occur during May at the start ... of the season with the sightings becoming fewer towards the end of the season in August. Killer whale ... interactions appear to be more consistent with no obvious pattern between months. Both species demonstrate ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 163–178 : Author(s): Moir Clark, J. and D.J. Agnew
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Validation of sink rates of longlines measured using two different methods
2 m down to the seabed. A major advantage of the TDRs is the archival nature of the data collected. File ... to the seabed. A major advantage of the TDRs is the archival nature of the data collected. ... is the archival nature of the data collected. Résumé La vitesse d’immersion des palangres à lest intégré (lignes ... collectées qui permet de les archiver. SHORT NOTE Wienecke and Robertson 180 Introduction ... of string of known length is attached. Fenaughty and Smith (2001) described the method of deploying ... ). Each longline deployed by the vessel consisted of six magazines, each 1.8 km long. Mk9 TDRs ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 179–187 : Author(s): Wienecke, B. and G. Robertson
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Interactions of Patagonian toothfish fisheries with killer and sperm whales in the Crozet Islands Exclusive Economic Zone: an assessment of depredation levels and insights on possible mitigation strategies
Paper Title: Interactions of Patagonian toothfish fisheries with killer and sperm whales ... pods were involved in 81.3% of the interactions. Significant variations of interaction rates ... Interactions of Patagonian toothfish fisheries with killer and sperm whales in the Crozet Islands ... % of the interactions. Significant variations of interaction rates with killer whales were detected between vessels ... InteractIons of PatagonIan toothfIsh fIsherIes wIth kIller and sPerm whales In the crozet Islands exclusIve ... pods were involved in 81.3% of the interactions. Significant variations of interaction rates ... -identification ont révélé que 81,3% des interactions concernaient 35 orques appartenant à quatre troupeaux ... différents. De fortes variations des taux d'interaction avec les orques ont été détectées entre les navires ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 179–195 : Author(s): Tixier, P., N. Gasco, G. Duhamel, M. Viviant, M. Authier and C. Guinet
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The sensitivity of multiple output statistics to input parameters in a krill–predator–fishery ecosystem dynamics model
’. The model incorporates only ecosystem com- ponents and interactions considered directly important ... by McLeod and Leslie (2009): ecosystem productivity, health, resilience and services. These objectives ... performance (services) and two (health and resilience) for each of 33 SSMU- and taxon- specific predator ... abundance at beginning of fishing period. Krill Whole model Health (II.3(b) maintenance ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 97–118 : Author(s): Hill, S.L. and J. Matthews
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Determination of Antarctic krill acoustic back-scattering cross-section
Paper Title: Determination of Antarctic krill acoustic back-scattering cross-section Abstract ... -section of back-scattering of krill. The target strength can be determined in situ by measuring the echo ... to determine the acoustic cross-section of the back-scattering of krill. By experiments, the authors have ... obtained the dependence of the acoustic section of back-scattering of krill on its length at a frequency ... KRILL ACOUSTIC BACK-SCATTERING CROSS-SECTION V.A. Protaschuk and T.A. Lukashova (U.S.S.R.) Abstract ... -section of back-scattering of krill. The target strength can be determined in situ by measuring the echo ... to determine the acoustic cross-section of the back-scattering of krill. By experiments, the author~ have ... obtained the dependence of the acoustic section of back-scattering of krill on its length at a frequency ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 141-152 : Author(s): Protaschuk, V.A. and T.A. Lukashova
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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
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Consideration of major issues in ecosystem monitoring and management
, their interactions and the manner in which their populations vary naturally. Large-scale interactions are catered ... for in the Krill Yield Model (KYM). Smaller-scale interactions centre around three main categories ... resources and highlights the need for information on harvested and dependent species, their interactions ... and the manner in which their populations vary naturally. Large-scale interactions are catered for in the Krill ... powerful archive with which to study ecosystem interactions. From the outset, the importance of under ... for information on harvested and dependent species, their interactions and the manner in which their populations ... vary naturally. Large-scale interactions are catered for in the Krill Yield Model (KYM). Smaller ... -scale interactions centre around three main categories: the availability of krill, variation in vital ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 213–232 : Author(s): Everson, I