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1. Uncertainty in acoustic surveys of Antarctic krill

   Abstract:  Studied were four primary sources of uncertainty in krill density estimates from ... acoustic surveys. The variance in system calibration with a standard sphere was evaluated in relation to ... with a standard sphere were estimated as-1.2 dB and ±0.3 dB, respectively. Uncertainty in estimating ... krill TS was then investigated through in situ measurements (Hewitt and Demer, 1991). The TS data ...

   Meeting Document : WG-EMM-95/72 : Autor(es): Demer, D.A.

2. The distribution of spatial management and Antarctic krill catch across pelagic bioregions in the Southern Ocean

   measures in the Southern Ocean.  We used the GIS in combination with catch data and the results of the 2007 ... Antarctic krill fishery, which accounted for 92% of catch biomass in the Southern Ocean in 2010/11 (CCAMLR ... in the occurrence of target species and level of fishing interest. There were important differences ... between pelagic bioregions in terms of the fraction of the bioregion that was open to fishing, and the ...

   Meeting Document : WG-EMM-12/15 : Autor(es): S.M Grant, S.L. Hill and P. Fretwell (United Kingdom)

3. Diet and trophic niche of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica

   stomach contents of specimens collected in the Ross Sea (71°–77°S, 165°E–180°) in January–March 2008 ... of prey in stomachs, fish (silverfish and lanternfish) and krill dominated diet overall (48% and 22 ... by silverfish occurred mainly in the extreme south-west of the region and near the continental slope ... . By weight, krill identified to species level in silverfish stomachs were predominantly Euphausia ...

   Meeting Document : WG-EMM-12/54 : Autor(es): M.H. Pinkerton, J. Forman, S.J. Bury, J. Brown, P. Horn and R.L. O’Driscoll (New Zealand)

4. 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 ... cells) covering the Ross Sea region. We build on the previous working medium-scale model in which the ... 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 ...

   Meeting Document : WG-SAM-14/31 : Autor(es): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)

5. The use of electronic monitoring camera system for the toothfish fishery in CCAMLR Subarea 48.3: a study case to help CCAMLR

   fishery around CCAMLR Subarea 48.3 have, to date, been limited to in situ line observations conducted by ... assessment and management of the fishery. This independent estimation of the total catch in the fishery ... was installed on a longliner targeting toothfish in CCAMLR Subarea 48.3. This system provided 100% of ... divided in settings and hauling operations where at-sea observations were matched with video footage ...

   Meeting Document : WG-FSA-14/27 : Autor(es): R.A. Benedet (United Kingdom)

6. Discrimination of two species of grenadier (Gadiformes, Macrouridae), Macrourus whitsoni and M. caml, in the Ross Sea region of the Southern Ocean (CCAMLR Subareas 88.1 and 88.2) on the basis of otolith morphometrics

   fish taken as bycatch in the Ross Sea on New Zealand fishing vessels in the 2011–12 fishing year were ... Abstract:  Two species of grenadier are predominatly taken as bycatch in the Ross Sea region ... in the sample were 34.5–65.1 cm total length (TL), and 12.0–24.0 cm pre-anal length (PAL); lengths of ... M. caml in the sample were 34.5–81.5 cm TL and 11.0–30.0 cm PAL. Both males and females were ...

   Meeting Document : WG-FSA-14/63 : Autor(es): M.H. Pinkerton, C. Ó Maolagáin, J. Forman and P. Marriott (New Zealand)

7. Spawning pattern and type of fecundity in notothenioids collected around the Elephant and South Orkney Islands

   georgianus) was carried out, in females collected during a fishery research survey around the Elephant Island ... counting were carried out using an image analyzer in sub-samples of ovaries at different stages of ... distinctive finding derived from this study: (i) in mature ovaries of all species immature oocytes or pre ... -vitellogenic appeared clearly separated from the most advance mode of mature oocytes; (ii) in hydrated ovaries ...

   Meeting Document : WG-FSA-16/22 : Autor(es): G. Plaza, P.M. Arana, F. Becker, A. Zavatteri and V.H. Castillo

8. USING ECOSYSTEM STRUCTURE TO IDENTIFY FINER-SCALE SSMUS FOR OCEANIC AREAS IN SUBAREAS 48.1 TO 48.3

   Abstract:  One of the main issues in the management of the krill fishery is finding a spatial ... initial framework of small scale management units (SSMUs) in subareas 48.1 to 48.4 based on the spatial ... consumption of krill by predators and 10% of the cumulative total fishery catch in the three subareas (48.1 to ... 48.3) where the fishery operates. There is ample evidence of structure in oceanic areas from both ...

   Meeting Document : WG-EMM-11/18 : Autor(es): S.L. Hill and J. Silk (UK)

9. Monitoring and management in the Antarctic – making the link between science and policy

   Abstract:  Management of human impacts in the Antarctic requires an effective system of monitoring ... . Human impacts arise as a result of processes that originate in the region (endogenous) and those that ... originate outside the region (exogenous). A number of monitoring programmes have been established in both ... minimise human impacts, is a complex process. Although potential analogues for target setting exist in ...

   Meeting Document : WG-EMM-07/P9 : Autor(es): K. Reid (United Kingdom)

10. Some notes on by-catch of fishes caught by the fishery vessel Niitaka Maru in the vicinity of the South Shetland Islands (December 2000 to January 2001)

    by F/V Niitaka Maru (3910t) were made from 16 December 2000 to 26 January 2001 in the vicinity of the ... South Shetland Islands. Among 103 net hauls quantitatively examined, by-catch fishes were found in 41 ... trawl catches. Lepidonotothen larseni was the most abundant in number and weight and occurred in 20.4 ... the second in abundance in number and weight respectively. Most hauls were dominated by one species ...

    Meeting Document : WG-EMM-01/50 : Autor(es): T. Iwami, S. Kawaguchi and M. Naganobu (Japan)

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