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| Lamothe, Julien; Larnaud, Pascal; Fiche, Marion; Robert, Marianne; Morandeau, Fabien; Vacherot, Jean-philippe; Scavinner, Marion; Simon, Julien. |
| In the context of the new European Common Fisheries Policy and in particular the Landing Obligation, this report synthesizes the trials which were carried out between 2014 and 2016 on French bottom trawlers operating in the Celtic Sea and Western Channel, to decrease their discards. All the detail of the experiments and their results are attached in the voluminous appendices. After a state of the art and various workshops organized in partnership between fishermen, equipment manufacturers and scientists, 3 basic devices were selected for the trials, according to the main fisheries: - 100 mm square meshes cylinder - SMC - (in addition to the mandatory 100mm and 120 mm square mesh panels - SMP) with or without scaring floats ; - Extension + codend in... |
| Tipo: Text |
Palavras-chave: Sélectivité; Mer Celtique; Cylindre à mailles carrées; T90; Grille à baudroie; Rejets; Églefin; Merlan; Sanglier; Selectivity; Celtic Sea; Square mesh cylinder; T90; Monkfish grid; Discards; Haddock; Whiting; Boarfish. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00403/51488/52084.pdf |
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| Herrmann, Bent; Priour, Daniel; Krag, Ludvig A.. |
| FEMNET, a numerical tool based on the finite element method, was used to estimate the shapes of four different designs of trawl cod-ends during fishing operations. Compared to a traditional diamond-mesh cod-end the design differences were the following: (i) the netting orientation was turned by 90 degrees (T90), (ii) the number of meshes in the circumference was reduced by 50% or (i) and (ii) were combined. The cod-end shape estimates were then entered into the simulation tool PRESEMO, to estimate their influence on the selectivity processes in the cod-end. This enabled us to predict how these design alterations - alone or combined - may act on the selectivity of each cod-end under identical fishing conditions. For instance, we predict that for a I 10 mm... |
| Tipo: Text |
Palavras-chave: FEMNET; PRESEMO; T90; Cod end selectivity. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2588.pdf |
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| 瀧本, 淳徳; 小池, 正徳; 高橋, 潤一; 梅津, 一孝; KOIKE, Masanori; UMETSU, Kazutaka. |
| 本研究は作物病原菌であるバーティシリウム菌とメロンつる割れ病菌のメタン発酵による死滅効果を明らかにすることを目的に発酵温度35℃と55℃で回分試験を行った。その結果, 微生物を90%死滅させるのに必要な時間T90は, バーティシリウム菌は35℃で7.7日, 55℃で0.6日となった。メロンつる割れ病菌は35℃で0.5日, 55℃では15分で死滅し, 共に55℃での死滅効果が高いことが明らかとなった。 |
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Palavras-chave: バーティシリウム菌; メロンつる割れ病菌; 乳牛ふん尿; メタン発酵; T90. |
| Ano: 2006 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4318 |
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