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| Distribution spatiotemporelle des siphonophores au dessus des marges Atlantique et Méditerranéenne |
| Patriti, G. (1995). Distribution spatiotemporelle des siphonophores au dessus des marges Atlantique et Méditerranéenne Mar. Nat. 4: 1-21 |
| In: Marine Nature. Marine Science Institute, Yeungnam University: Kyongsan. ISSN 1225-990X, meer |
| Abstract |
Several die! cycles, with the help of opening closing net system, have been carried out during two missions in both the Northwestern Mediterranean Sea and the Bay of Biscay in Northeastern Atlantic Ocean above submarine canyons cutting into continental slope. A serie of oblique hauls were carried out simultaneously at different levels during several die! periods. The aims of this study is a preliminary estimation, in this area, of the siphonophores distribution and migration. This migrations are sometimes difficult to value and many causes able to screen die! migrations are examined. In relation with the environment where those diel migrations are produce and in account to recent paper on gelatinous organisms it is true that many siphonophores are able to take a part to the modification in fall of organic matter on the both continental slope and shelf. This fact is the consequence of passive horizontal stream transport coupled with vertical migrations of this organisms. Also the high predation capacity of siphonophores is able to increase the effect of modification on planktonic organisms. |
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