Resultados de la búsqueda

1. Preliminary analyses in support of the CEMP Review Workshop: serial correlations

   Abstract:  As part of the preliminary analyses undertaken in preparation for the CEMP Review ... Workshop, the Secretariat has documented serial correlation in time series of CEMP indices. The values ... -03/24. Serial correlation in biological indices occurred in 4, 10 and 33 % of the time series at ... alpha levels of 0.05, 0.10 and 0.20 respectively. Generally, serial correlation appeared more prevalent ...

   Meeting Document : WG-EMM-03/27 : Autor(es): Secretariat

2. The direct impact of fishing and fishery-related activities on marine life in the CCAMLR Convention Area with particular emphasis on longline fishing and its impact on albatrosses and petrels – a review

   Iles Kerguelen. The fishery extended further south for a few years in the second half of the 1970' ... until 1996/97 when the longline fisheries for Dissostichus eleginoides spread over most of the Southern ... Ocean within one season. A number of direct effects from fishing activities can be seen on marine life ... , in particular birds and mammals. With the exception of plastic package bands on some sub-Antarctic ...

   Meeting Document : SC-CAMLR-XIX/BG/11 : Autor(es): Delegation of Germany

3. Potential effects of UV-B on krill – experimental and genetic studies

   spring surface levels of ultraviolet-B, ultraviolet-A and photosynthetically active radiation, in order ... to examine their response in terms of mortality and generalised activity. Levels of ... animals in the dark survived. Addition of ultraviolet-B typical of depths up to 15 m were found to ... content of animals from various treatments was found not to vary. Author(s):  S. Newman, S. Jarman, S ...

   Meeting Document : WG-EMM-99/24 : Autor(es): S. Newman, S. Jarman, S. Nicol, D. Ritz, H. Marchant, N. Elliot and A. McMinn (Australia)

4. Studies on zooplankton with special reference to krill from the Indian Ocean sector of the Southern Ocean

   Abstract:  Distribution, abundance and species composition of zooplankton collected during the ... of zooplankton community and the population density ranged fiom 650 to 7209/100 m-3 of zooplankton ... catch. Swarms of krill and salps were observed during the study period (austral summer) which were the ... prime cause for high standing stock of zooplankton. The prevailing physical parameters could be the ...

   Meeting Document : WG-EMM-98/35 : Autor(es): K.L. Bhat, R. Vijayakumar and V. Jaya Sree (India)

5. THE ROSS SEA: A CANDIDATE FOR IMMEDIATE INCLUSION IN A NETWORK OF MARINE PROTECTED AREAS

   Abstract:  In the Southern Ocean fisheries are increasingly being exploited while the effects of ... populations and communities, thus confounding management. It is timely for CCAMLR to develop a network of MPAs ... , with initial inclusion of the well-researched Ross Sea, the area of the Southern Ocean having ... last stretches of the world’s oceans where sea ice remains an important part of the system. The Ross ...

   Meeting Document : CCAMLR-XXVII/BG/30 : Autor(es): Submitted by ASOC

6. Short note: By-catch of fishes caught by the krill fishing vessel Niitaka Maru in the South Georgia area (August 2007)

   Abstract:  Scientific observation on the species composition and abundance of fishes incidentally ... from 6 August to 30 August to the north of South Georgia Is. Among 87 net hauls quantitatively examined ... 21 hauls. Among a total of 7 fish species, Myctophidae 3, Zoarcidae 1, Nototheniidae 1 and ... Channichthyidae 2, recognized, Krefftichthys anderssoni of Myctophidae occurred most frequently (38.5% of net ...

   Meeting Document : WG-EMM-08/57 : Autor(es): T. Iwami and M. Naganobu (Japan)

7. Target strength of mackerel icefish (Champsocephalus gunnari) from a scattering model

   backscattered target strength (TS) of six mackerel icefish (Champsocephalus gunnari) of total length 26.8–35.0 ... cm, at 38 kHz. The model used computed tomography (CT) scans of fish to determine the sound speed and ... density throughout the fish and simulated the complex interaction of the incident sound wave with the ... applicable to fish of length 26–35 cm. Existing in situ TS estimates are for smaller fish (16–26 cm) and ...

   Meeting Document : SG-ASAM-09/06 : Autor(es): G. Macaulay (New Zealand)

8. THE AUTOLINE SYSTEM – AN UPDATED DESCRIPTIVE REVIEW OF THE METHOD WITH RECOMMENDATIONS TO CLARIFY CCAMLR CONSERVATION MEASURES REGULATING LONGLINE FISHERIES WITHIN THE CONVENTION AREA

   changes are suggested clarify understanding of these measures. The paper includes a recommendation for a ... discussing circumstances and scenarios occurring with the method. A definition of the fundamental unit of ... gear (a ‘line’) for longlines is proposed for the purposes of regulation and management. Current ... review of Annex 41-01/B (2007) governing research within exploratory fisheries by WG-FSA with a view to ...

   Meeting Document : WG-FSA-08/60 : Autor(es): J.M. Fenaughty (New Zealand)

9. A multi-frequency method for improved accuracy and precision of in situ target strength measurements

   Abstract:  The effectiveness of a split-beam echosounder system to delineate single scatterers and ... synchronized signals from two or more adjacent split-beam transducers of different frequencies. The accuracy of ... from one of the split-beam transducers, additional corresponding TS measurements can be collected with ... juxtaposed single-beam transducers. Both methods were utilized to extract in-situ TS measurements of ...

   Meeting Document : WG-EMM-97/24 : Autor(es): Hewitt, R.P., Soule, M.A., Demer, D.A.

10. Pursuit of polynyas in the Antarctic peninsula area

    influence biological activity. We pursued daily transition of coastal polynyas in the Antarctic Peninsula ... area from 1978 through 1995 using images of sea ice concentrations by the satellite microwave ... observations. A typical polynya existed off the tip of the Peninsula in 1987 and 1991. In the such years, sea ... ice cover developed extensively. Inversely, the years of the narrow sea ice cover were 1988, 1989,1990 ...

    Meeting Document : WG-EMM-97/69 : Autor(es): Kimura, N., Shibazaki, K., Matsumura, S., Naganobu, M., Okada, Y.

Páginas