Browsing ICES CM documents authored by IMR scientists (1949-2011) by Subject "VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fisheries technology: 924"
Now showing items 161-180 of 493
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MyOcean—operational products for fisheries
(ICES CM documents;2010/A:16, Working paper, 2010) -
NEA saithe XSA runs with different survey tuning series
(Working paper, 2010-02)New tuning series from a combined and improved survey gives lower and more stable S. E. Log q residuals than the tuning series presently used. However, the retrospective trend is still poor and the estimates of F and SSB ... -
A new cleaning system for rearing tanks in larval fish culture
(ICES CM documents, Working paper, 1998) -
A new design in transportation and net cage technology for live seafood and aquacultural purposes
(ICES CM documents, Working paper, 1998) -
New gear handling systems for coastal purse seining.
(ICES CM Documents;1982/B:37, Working paper, 1982)The paper is describing a new gear handling system for coastal purse seiners. The system consist of a hollow manuverable ring needle through which the purse wire is passing. Solid type rings can be used since the rings ... -
New towed transducer concept
(ICES CM Documents;1988/B:59, Working paper, 1988)The history of towed transducer applications at the Institute of Marine Research, Bergen, is reviewed. Advantages and disadvantages of several designs are summarized. To improve performance significantly, a new system ... -
Nominal performance measures for two 710-kHz transducers
(ICES CM Documents;1992/B:9, Working paper, 1992)Two new transducers have been designed by SIMRAD for the EK500 echo sounding system. The nominal operating frequency is 710 kHz. Each transducer is composed of a single, circular, active element, with diameter of 25 or ... -
The Norwegian in-year monitoring fishery for sandeel in the North Sea using satellite-based VMS data and landings information
(ICES CM documents, Working paper, 2006)Due to the critically poor status of the sandeel stock in the North Sea, the Norwegian Ministry of Fisheries and Coastal Affairs decided to conduct a monitoring fishery in April/May 2006 with a limited number of Norwegian ... -
Norwegian mesh selection experiments in 1963 and 1964
(ICES CM Documents;1964/118, Working paper, 1964) -
Norwegian trawl CPUE analysis for NEA saithe
(Working paper, 2003) -
Norwegian trawl mesh selection experiments 1960
(ICES CM Documents;1960/89, Working paper, 1960) -
Note on the measurement of target strength of fish at sea
(ICES CM Documents;1966/F:9, Working paper, 1966) -
A note on the new method of estimating "echo abundance"
(ICES CM Documents;1963/36, Working paper, 1963) -
Observation of fish behaviour, density and distribution around a surveying vessel by means of a deployable echo sounder system
(ICES CM Documents;1999/J:9, Working paper, 1999)Detailed acoustic observations of fish behaviour, distribution and density in the trawl area are necessary in order to establish quantitative relationships between trawl samples and fish density. Acoustic observation ... -
Observations on the Depth Range of tagged Bluefin Tuna (Thunnus thynnus L.) based on Pressure Marks on the Lea Tag
(ICES CM Documents, Working paper, 1964)The present paper is an investigation on the depth range of tagged bluefin tuna based on pressure marks on the Lea tag (Figure 1). It was observed that the within season recaptures were without pressure marks, while the ... -
Observer program for juvenile Northeast Arctic saithe
(Working paper, 2010-02)NEA saithe 0-group indices from observers along the coast does not seem to reflect the dynamics in year class strength very well and is therefore probably not suitable for improving future recruitment estimates for this stock. -
On acoustic multi-frequency species identification and separation of Atlantic mackerel, Norwegian spring spawn herring and Norway pout.
(ICES CM documents, Working paper, 2004)The accuracy of the multi-frequency species identification and separation algorithms may be significantly improved when the detailed acoustic scattering characteristics of the fish are known, including its expected variability ... -
On subjectivity in the judging of acoustic records; comparison of degree of homogenity in allocation of echo values by different teams
(ICES CM Documents;1993/B:21, Working paper, 1993)On four fish abundance estimation surveys in the Barents Sea, january-february 1993, the acoustic records were judged by two independent teams. We have analyzed the degree of homogenity in allocation of echo values to ... -
On the depth dependence of fish target strength
(ICES CM Documents;1997/FF:7, Working paper, 1997)Data on the depth dependence of the target strength of live kokanee (Oncorhynchus nerka), a physostome, at 50 kHz (Mukai, T., and Iida, K., ICES J. mar. Sci., 53: 245-248 (1996)) have been reexamined. In the cited study, ... -
On the Estimation of Cod and Haddock discarded by Trawlers using different Chafers
(ICES CM Documents;1965/167, Working paper, 1965)