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1. A risk-management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems

   Ecosystems (VMEs) are avoided. Due to the high levels of uncertainty surrounding both the evidence of VME ... presence and the consequences of interaction with different types of gear, a risk-management framework is ... proposed, similar to that which has been used successfully to minimise the effects of longline fishing ... mortality on seabirds. Risk is broadly defined as the conditional probability of adverse impacts given ... Ecosystems (VMEs) was identified as a key issue by the United Nations in 2003 (UNGA, 2003). No standard ... MARINE ECOSYSTEMS K. Martin-Smith Australian Antarctic Division Department of the Environment, Water ... , Heritage and the Arts 203 Channel Highway, Kingston 7050 Tasmania, Australia Email – keith.martin-smith ... impacts of bottom fishing gear on Vulnerable Marine Ecosystems (VMEs) are avoided. Due to the high levels ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 177–193 : Autor(es): Martin-Smith, K

2. Can we satisfactorily estimate variation in krill abundance?

   from data reported to the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR ... fishery induced variation. The timescale for such information is discussed in the light of the needs of ... reported to the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) does not ... variation. The timescale for such information is discussed in the light of the needs of fishery management ... ) ha sido usada tradicionalmente en las evaluaciones de pesquerias demersales como un estimador de la ... Recursos Vivos Marinos Antarticos (CCAMLR) no provee un indice realista de la abundancia de krill ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 375-376 : Autor(es): Everson, I.

3. Seabird interactions with longlining operations for Dissostichus eleginoides around South Georgia, April to May 1994

   -seven line sets were observed and 98 deaths of seabirds were recorded over 20 sets; no deaths occurred ... during hauls. The 16 sets made at night contributed 15% of overall mortality, all of white-chinned ... petrels (Procellaria aequinoctialis); the four day sets contributed 85% of deaths, with giant petrels ... disproportionately affected in relation to their numbers near the fishing vessel; giant petrels may be ... deaths of seabirds were recorded over 20 sets; no deaths occurred during hauls. The 16 sets made at ... the South Sandwich Islands. Although no seabird deaths were recorded during the setting of seven ... hooks laid were of the type Maruto no. 26. Approximately 5% were of the type Maguro no. 14 which has a ... main line was more than 1 cm thick, there were no swivels, and the streamers consisted of lines more ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 111–121 : Autor(es): Ashford, J.R., J.P. Croxall, P.S. Rubilar and C.A. Moreno

4. Depth distribution and spawning pattern of Dissostichus eleginoides at South Georgia

   eleginoides) were examined using data from approximately 7000 fish sampled by observers from the 1998 fishery ... around South Georgia and Shag Rocks (Subarea 48.3). D. eleginoides were distributed down the shelf slope ... ) and not by geographical position. Pre-spawning animals appear to be distributed all around the South ... water, and are concentrated to the northeast of Shag Rocks. Few spent fish were found around South ... has been no suggestion of a massive concentration of effort in one small area. However, the fishery ... , except that no restriction was placed on the depth range of a longline set. To increase sample size ... stage 3 animals which are mostly around the 800 m depth in April. There is no evidence of female ... - spawning. Although almost no sampling was possible on the northwest South Georgia shelf edge (Figure 7b ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 19–36 : Autor(es): Agnew, D.J., L. Heaps, C. Jones, A. Watson, K. Berkieta and J. Pearce

5. Fitting Euphausia superba into Southern Ocean food-web models: a review of data sources and their limitations

   sources and their limitations Abstract / Description:  This paper aims to provide the overview needed to ... include krill in food-web models and to guide modellers to key sources of data. It describes the strengths ... and live krill), acoustics (distribution, time series, biomass and swarm-scale information), the ... recommended. Observations that krill occupy the underice layer, the 0–10 m layer, the deeper water column and ... are the wet mass m–2 (i.e. bio- mass density) and no. m–2 (numerical density). The current paradigm ... of the estimation volume, due to the concentrations (no. m–3) here being orders of magnitude higher ... . The key point here is that the numbers of krill m–2 is a product of the no. m–3 and the habitat ... no better for net population growth than the lower-risk, lower-reward habitats offshore, albeit ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 219–245 : Autor(es): A. Atkinson, S. Nicol, S. Kawaguchi, E. Pakhomov, L. Quetin, R. Ross, S. Hill, C. Reiss, V. Siegel, G. Tarling (submitted to the 2008 Joint CCAMLR-IWC Workshop)

6. Age, growth and size at sexual maturity of Macrourus carinatus caught as by-catch in Australian sub-Antarctic trawl fisheries

   McDonald Islands (Division 58.5.2) in 1992 and 1993. The range of estimated ages was 4 to 25 years. There ... were no significant differences in growth parameters calculated for males and females. Von Bertalanffy ... growth parameters for both sexes combined were: L ∞ = 690 mm, K = 0.069 and t 0 =-2.4. The size at sexual ... operations in the Heard Island region in 2000. The length at first maturity (L 50) was 418 mm (total length ... 1992 and 1993. The range of estimated ages was 4 to 25 years. There were no signifi cant differences ... geographical separation of the two sites, seasonal variations in reproductive condition linked to the ... no signifi cant difference in the values of L50 and Lm50 calculated for females and males (P > 0.01 ... for the sample was 4 to 25 years (Figure 6). As there was no signifi cant difference between the fi ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 139–151 : Autor(es): van Wijk, E.M., R. Williams and A.J. Constable

7. Otolith and body size relationships in bigeye grenadier (Macrourus holotrachys) in CCAMLR Subarea 48.3

   holotrachys) caught as by-catch in the Patagonian toothfi sh (Dissostichus eleginoides) fishery in Subarea ... 48.3 was measured and weighed, and the usefulness of otoliths as predictors of fish size was determined ... size models should be derived for each fish population under investigation. The length of fish chosen ... in such studies should be representative of the size range consumed by predators. File:  09morley ... 80 cm Lt. A paired t-test comparison of the dimensions of the left and right otoliths revealed no ... otoliths have, how- ever, found there to be no difference between the size of otoliths in males and ... . Ichthyological Monographs of the J.L.B. Smith Institute of Ichthyology, No. 1xiv: 253 pp. Trunov, I.A. and V.V ... otoliths from bigeye grenadier (Macrourus holotrachys) caught as by-catch in the Patagonian toothfi sh ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 133–143 : Autor(es): Morley, S. and M. Belchier

8. Sea-surface temperature and krill catches around South Georgia in December–February 1989–1991 and 1999–2001

   further analysis of SST maps, provides continuous information on hydrological conditions in the area ... . Analyses of the data at the beginning of each summer season could enable us to evaluate the potential for ... conducting a krill fishery in the area during the entire year. The reliability of these forecasts could be ... with the early 1990s, the period from December to February in the late 1990s and early 2000s showed a ... of SST maps, provides continuous information on hydrological conditions in the area. Analyses of ... the data at the beginning of each summer season could enable us to evaluate the potential for ... conducting a krill fi shery in the area during the entire year. The reliability of these forecasts could be ... comparison with the early 1990s, the period from December to February in the late 1990s and early 2000s ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 165–174 : Autor(es): Vanyushin, G.P

9. Significant intra-annual variability in krill distribution and abundance at South Georgia revealed by multiple acoustic surveys during 2000/01

   midseason survey revealed no significant difference in the mean krill density derived from only those four ... acoustic surveys of Antarctic krill (Euphausia superba) were conducted around South Georgia in the 2000/01 ... March 2001 (late-season). The surveys were the first in a newly planned five-year series of observations ... designed to complement and extend an existing time series regularly maintained by the British Antarctic ... ). Analysis of transect data obtained in the western box in the mid- season survey revealed no signifi cant ... along the island’s north coast (cf. Watkins et al., 1999; Brandon et al., 1999, 2000). No extra ship ... transducers. The echosounder was calibrated using standard targets at Stromness Bay, South Georgia, on 24 ... sequence. The EK500 was calibrated at Stromness Bay on 24 December 2000 (during the mid-season survey ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 71–82 : Autor(es): Brierley, A.S., C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst

10. Spatial distribution of management measures, Antarctic krill catch and Southern Ocean bioregions: implications for conservation planning

    conservation planning for developing marine spatial protection includes analysis of the spatial distribution of ... fishing activities, existing management and ecological characteristics. This paper assesses the overlap ... between habitat (bioregion), existing spatial management and Antarctic krill catch in the Southern Ocean ... . The analysis required standardised information on the location and extent of spatial fisheries ... 2). To date there has been no central repository of standardised information on the spatial ... the site (pica) scale, whereas fisheries catch data may be reported or aggregated to a local (micro ... CCAMLR has endorsed the development of a representative system of marine protected areas (MPAs) in the ... measure (CM) agreed by the Commission in 2011 (CM 91-04) sets out a general framework for establishing ...

    Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 1–19 : Autor(es): Grant, S.M., S.L. Hill and P.T. Fretwell

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