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| Doray, Mathieu; Berger, Laurent; Coail, Jean-yves; Vacherot, Jean-philippe; Bavouzet, Gerard; Petitgas, Pierre. |
| The lack of specific Target Strength (TS) values for European anchovy (Engraulis encrasicolus) and sardine (Sardina Pilchardus) in the literature has been pointed out by the Working Group on Acoustic and Egg Surveys for Sardine and Anchovy in ICES Areas VIII and IX. The need for specific small pelagics TS measurements conducted in controlled environments was recognized by the group, to further investigate the adequacy of TS length equation used to derive fish stock estimates for clupeids in European waters. TS is a stochastic variable which largely varies in the wild, in response to changes in physical (tilt angle, depth) or biological (physiology) single fish attributes. The first requirement to make sound TS measurement is to accurately identify of the... |
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| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00055/16637/14133.pdf |
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| Bavouzet, Gerard; Cadiou, Yvon. |
| Scientists and sometimes professional skippers who want to correlate fishing results with fishing conditions, and those who want to keep a record of fishing conditions as a help in decision making for future fishing operations are interested in storing ail the available information under a format which makes as easy as possible ail comparisons, correlations and data processing, ail these operations being possible with the same PC computer. A data acquisition software has been developed to record data from analog/digital inputs, Scanmar system and GPS navigation system. |
| Tipo: Text |
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| Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/00398/50933/51708.pdf |
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| Davigo, Erwan; Bavouzet, Gerard. |
| 3D modelling of the fishing gear flume tank at IFREMER's Lorient site Within the framework of their training, it is suggested that students in their first year of the "Industrial Product Design" BTS (vocational training certificate) at the Colbert de Lorent school participate in an internship in order to put into practice their acquired skills and to familiarise themselves with the work environment. Erwan Davigo did his internship at IFREMER's Lorient station, in the Fishing Technology department, from 18 May 1998 to 26 June 1998 (placement supervisor: Gérard Bavouzet). The study topic focuses on modelling the Lorient station's test basin in three dimensions, thus making it possible to complete the documentation base. IFREMER is presented in its entirety... |
| Tipo: Text |
Palavras-chave: Fishing technology; Flume Tank; 3 D modeling; Technologie des pêches; Bassin d'essais; CAO; Modelisation 3 D. |
| Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/1999/rapport-2650.pdf |
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| Meillat, Marc; Dupouy, Herve; Bavouzet, Gerard; Kergoat, B.; Morandeau, Fabien; Gaudou, Olivier; Vacherot, Jean-philippe. |
| The fishery for benthic species (Monkfish, Megrim, Rays, etc ... ) represents for the surrounder countries of the Celtic Sea and the Bay of Biscaye one of the most important activities . An estimate of the discards of the main species resulting from the sorting practice onboard of the trawlers participating in this fishery was made in 1985 and 1991. it was concluded that an important quantity of juveniles of Rays, Megrim and Monkfish are discarded each year causing an important mortality. The aim of the present paper is to present the preliminary results of a selectivity grid fixed on a bottom trawl to limit as possible the discards. Three different grids were tested at sea during surveys with different results. The major problem is due to difference in... |
| Tipo: Text |
Palavras-chave: Chalut sélectif; Grille; Mer Celtique; Golfe de Gascogne; Baudroies; Sardines; Raies; Selectivity; Grid; Trawl; Celtic Sea; Bay of Biscaye; Monkfish; Megrim; Rays. |
| Ano: 1991 |
URL: https://archimer.ifremer.fr/doc/00394/50567/51258.pdf |
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