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| Registros recuperados: 1.506 | |
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| Jegou, Anne-marie; Creze, J.y. |
| La Baie de BOURGNEUF est située sur le littoral atlantique juste au Sud de l'estuaire de la LOIRE dont elle est séparée par la pointe de ST GILDAS. Cette baie ne serait qu'une simple ondulation du trait de côte si l'Ile de NOIRMOUTIER ne la séparait de l'océan sur une vingtaine de kilomètres. Ainsi ne subsiste-t-il que deux ouvertures, l'une au Nord qui s'étend sur une largeur de 12 kilomètres entre la pointe de l'HERBAUDIERE et celle de ST GILDAS, l'autre au Sud, large de 800 mètres, qui n'est en fait qu'un étroit goulet entre la pointe de la FOSSE et celle de NOTRE DAME DE MONT. Du point de vue milieu naturel - comme ailleurs du point de vue historique et administratif - la baie fait le contact entre le littoral breton (falaises, rias, criques) et les... |
| Tipo: Text |
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| Ano: 1977 |
URL: http://archimer.ifremer.fr/doc/00132/24309/22307.pdf |
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| Maggi, Pierre; Gruet, Yves; Lassus, Patrick; Kalifa, Francis. |
| Les posidonies sont des phanérogames marines qui existent actuellement en deux endroits du globe : en Méditerranée (Posidonia oceanica DELILE) et sur les côtes sud de l'Australie (P. australis J.D. HOOKER). En Méditerranée, l'herbier de posidonies occupe une grande partie des fonds meubles de la zone photophile de l'étage infralittoral (PÉRÈs et PICARD, 1964). Il joue un rôle capital dans la fixation des sédiments meubles et constitue un milieu privilégié pour le développement et la croissance de nombreuses espèces animales marines. |
| Tipo: Text |
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| Ano: 1977 |
URL: http://archimer.ifremer.fr/doc/1977/publication-7129.pdf |
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| Arnal, Olivier; Bougard, M; Delatre, Jm; Dewarumez, N; Jospin, Jp; Labbe, A; Le Fevre-lehoerff, G; Menu, D; Nicoulaud, F; Pauchet, Mc; Quintin, Jean-yves; Souplet, Arnauld; Toularastel, France; Romana, Louis-alexandre; Laubier, Lucien; Chardy, Pierre. |
| Les études écologiques sur le site d'une future centrale nucléaire se divisent en plusieurs parties : - étude d'avant-projet : étude rapide permettant d'évaluer les caractéristiques écologiques générales et la richesse du site. Sur le site de Gravelines, cette étude a été effectuée de Juillet à Décembre 1973, - étude de projet : destinée à établir un bilan écologique avant la mise en service des installations cette étude porte sur deux cycles annuels, - étude de Surveillance : s'étendant sur plusieurs années; cette étude permet, d'une part, d'apprécier les variations pluriannuelles des écosystèmes d'autre part, de rechercher les effets des rejets d'eau réchauffée sur ces écosystèmes. |
| Tipo: Text |
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| Ano: 1977 |
URL: http://archimer.ifremer.fr/doc/00006/11736/8410.pdf |
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| Maggi, Pierre; Alzieu, Claude. |
| La majorité des pays riverains de la mer du Nord, de l'Atlantique et de la Méditerranée se sont engagés, par différents accords internationaux, à interdire les déversements et rejets en mer de substances nocives. C'est ainsi que parallèlement à certains métaux lourds et produits organohalogénés réputés toxiques et accumulables, les composés organosiliciés font l'objet d'une interdiction d'immersion lorsqu'ils sont toxiques et non biodégradables. |
| Tipo: Text |
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| Ano: 1977 |
URL: http://archimer.ifremer.fr/doc/1977/publication-7130.pdf |
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| Le Borgne, Yves. |
| The SATMAR hatchery-nursery is in operation since 1973 with 11 employees. The production reaches 10 million of newly settled spat per ~eek. The species reared are : Crassostrea gigas. Ostrea edulis, Mercenaria mercenaria, Venerupis decussata. Venerupis sem~decussata. Venus verrucosa. SAT~R cooperates ~th the shellfish farmers by supplying them with the necessary spat (for instance clams) and with the research laboratories (taking part in the ECOTRON program set up by CNEXO in 1975 and 1976). |
| Tipo: Text |
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| Ano: 1977 |
URL: http://archimer.ifremer.fr/doc/00305/41595/40804.pdf |
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| Audouin, Jacques; De Kergariou, Gabriel. |
| Over the last decades, the fishing effort focused on crustaceans and especially on the lobster has continued to increase. This way, the number of pots used by each boat has grown from a few dozen to several hundred. This process lead to an overexploitation of the seabed and the catches do not go over 400 tonnes/years despite the increase of the means involved. Consequently, it has been necessary to implement a number of new measures to protect the lobster stock, and some restricted areas have been created off the French coasts. |
| Tipo: Text |
Palavras-chave: Homard; Crustacés; Ecloserie; Reproduction; Repeuplement. |
| Ano: 1977 |
URL: http://archimer.ifremer.fr/doc/1977/acte-6578.PDF |
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| Chardy, Pierre. |
| Systematic of the Haploniscidae family is cleared by two approaches : phenetic relationships between species through a multiple criteria analysis and phylogenetic attempt based on a few number of characters of which the evolutive meaning is discussed. Choice and coding of characters, taxonomic distance and mathematical methods are commented. Phenetic classification is expressed by two complementary techniques : ordination (Analysis of Correspondences, CORDIER, 1966) and hierarchy (cluster analysis of Roux, 1968). The resulting scheme provides a picture of the morphological affinities between the 5 genus and the 73 species of this family ; divisions inside genus Haploniscus are defined. A phylogenetic hypothesis, deduced by the minimum steps methods for... |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1977 |
URL: http://archimer.ifremer.fr/doc/1977/publication-5009.pdf |
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| Buestel, Dominique; Arzel, Pierre; Cornillet, Paulette; Dao, Jean-claude. |
| It is attempted to produce large quantities of 25 mm scallop juveniles suitable for restocking the beds. A first breeding experiment in laboratory gave a very low survival rate : about 1% from the D larvae stage to reach the size of 1 mm. The growth after metamorphosis is very irregular and slow, compared to the datas obtained in natural environment. An experimental programme of spat collection in natural environment, completed by hanging culture has been conducted. An average number of 300 spats (size 15 mm) per collector has been obtained in 1976. Banging culture allows to reach the size of 25 mm three months after settlement with a very good survival rate. The yield of a large number of spat from collectors seems to demonstrate that there is a future... |
| Tipo: Text |
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| Ano: 1977 |
URL: http://archimer.ifremer.fr/doc/00305/41599/40808.pdf |
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| Quero, Jean-claude; Verron, R; Cattin, Y. |
| During 1976, some rare fishes were observed in la Rochelle, especially Heptranchias perlo (Bonnaterre, 1788) (one specimen), Trachiptetus arcticus (Brünnich, 1771) (two specimens), Zenopsis conchifer (Lowe, 1852) (one specimen), Nesiarchus nasutus Johnson, 1862 (four specimens), Pholis gunnellus (Linné, 1758) (one specimen) as also Pseudotriakis microdon Capello, 1868 (one specimen), Serranus cabrilla, (Linné, 1758) (two specimens) and Torpedo nobiliana Bonaparte, 1835 with two different forms. On the other hand, the authors found one albino fish and four remarkably large fishes. They also observed 6 species of fishes from the Bay of Biscay belonging to a colder fauna and 5 species of fishes from the Bay of Biscay belonging ta a hotter fauna. NOT... |
| Tipo: Text |
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| Ano: 1977 |
URL: http://archimer.ifremer.fr/doc/1976/publication-3648.pdf |
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| Mesnil, B.. |
| The dwindling of the stocks of some marine animals traditionally fished is driving the producers to consider the exploitation of species which were seen as of lesser interest up to now. Among the latter, cephalopods hold a specific position. In the first place, they are not a new resource so to speak, having been eaten in Asian and Mediterranean countries for a long time, and, above all, they've been the object of a growing interest for a few years now. It is encouraging to see that this tendency is very distinct in our country where it can be thought that producers and consumers are now aware of the value of this abounding species. The actions aimed at optimising their exploitation are thus facilitated but they suffer from the imprecision of the... |
| Tipo: Text |
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| Ano: 1977 |
URL: http://archimer.ifremer.fr/doc/1977/publication-6666.pdf |
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| Sibuet, Myriam. |
| -A new species was found among the Asteroids collected near the Açores at a depth of 350 m.This species is described and attributed to the genus Ophidiaster according to the presence of 8 series of pore areas. Some characters can be related to the genus Hacelia and Tamaria mainly the massive shape of the triangular arms and the series of subrectangular actinal plates Besides, the valvula-pedicellarian are few and are situated dorsally, further the pore areas contains more than 40 pores each, these characters are specific to Ophidiaster reyssi n. sp. [NOT CONTROLLED OCR] |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1977 |
URL: http://archimer.ifremer.fr/doc/1977/publication-5199.pdf |
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| Aldebert, Yvonne; Carries, Claude. |
| In this paper are given the first results of a quantitative study of the spawning of Pilchard Sardina pilchardus in the Gulf of Lion~during Winter 1975 and Winter 1976. The mean density of eggs at each station and their average abundance in the spawning area were estimated. The incubation time of eggs depending upon temperature was also calculated. En 1975 et 1976 une étude de la reproduction de la sardine dans le Golfe du Lion a été réalisée. Les premiers résultats de cette étude, qui a pour but d'évaluer quantitativement la ponte de cette espèce, permettent de donner une estimation moyenne de l'abondance des oeufs au cours d'une campagne. La durée de l'incubation en fonction de la température a d'autre part été déterminée. |
| Tipo: Text |
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| Ano: 1977 |
URL: http://archimer.ifremer.fr/doc/00343/45379/44885.pdf |
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| Auger, Christian; Grizel, Henri; Tige, Gilbert; Langlade, Aime; Rabouin, Marie-agnès. |
| Breeding Crassostrea gigas was conducted in three rivers of Morbihan (Brittany France). During one year, every four months, their increasement was examined. In one of these rivers, oysters showed, however their age and their origin, an abnormal increasement. Shells were very thick, with many chambers. At the opposite, in the two others rivers, oysters did not show that disordered state. Shells were sound and their linear increasement was harmonious |
| Tipo: Text |
Palavras-chave: Coquilles; Physiologie; Crassostrea gigas; Huîtres. |
| Ano: 1977 |
URL: http://archimer.ifremer.fr/doc/1977/acte-6245.PDF |
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| Registros recuperados: 1.506 | |
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