|
|
|
| Registros recuperados: 677 | |
|
|
| Moreau, Jean. |
| In a preliminary work (MOREAU, 1967), the importance of the role of pigments in fattening ponds and the part they played in the process of Navicula ostrearia B.'s pigmentation had been studied in fattening ponds situated at two different points of the Marennes-Oléron basin. The first of these fattening ponds were located in the Seudre Valley, at La Tremblade and at Eguillate, the second ones in the Daire area more widely fed by coastal waters and where the greening conditions of the fattening ponds are different from those observed in Seudre (figure 1 and table 1). 370 Dosing the potency of various chlorophylls had highlighted a noticeable constancy of chlorophyll B and, a variance for those of type A and C (table 2) which had made it possible to conclude... |
| Tipo: Text |
Palavras-chave: Marennes Oléron; Navicula ostrearia; Pigment; Facteurs; Verdissement; Claire à huîtres. |
| Ano: 1968 |
URL: http://archimer.ifremer.fr/doc/1968/publication-2982.pdf |
| |
|
|
| Maurin, Claude. |
| In 1953, Ekman noted with surprise that the Mediterranean, the cradle of civilization and Aristotle's laboratory, was far from being the most well-known sea in Europe. This comment could also be applied to the Atlantic coasts, from the southern Iberian Peninsula to north-west Africa. A few years later, when the observations given here begin, knowledge of coastal zones had taken great strides. However, this was not the case for the continental slope, and much less so for abyssal plains. Only a few documents report on ocean depths greater than 200 m and the fauna that live there. Many oceanographic research vessels surveyed these regions during the second half of the 19th century, but they only explored them in passing. The main zone of research for these... |
| Tipo: Text |
|
| Ano: 1968 |
URL: http://archimer.ifremer.fr/doc/1968/publication-3196.pdf |
| |
|
|
| Quero, Jean-claude. |
| Au cours de l'année 1966, une nouvelle technique s'est développée le long des côtes françaises de l'Atlantique : la pêche du merlu au filet maillant ou filet droit. Pendant les premiers mois, ses rendements, bien supérieurs à ceux du chalut, lui ont attiré un grand nombre d'artisans dans presque tous les ports du golfe de Gascogne. Cette évolution rapide a provoqué des réactions diverses dans le monde de la pêche, en particulier de violentes critiques de la part des tenants des techniques traditionnelles. Les deux arguments invoqués le plus souvent étaient les suivants : le filet maillant achève l'oeuvre des arts traînants en allant capturer sur les fonds inaccessibles aux chalutiers, les derniers reproducteurs qui s'y sont réfugiés ; en cas de perte (et... |
| Tipo: Text |
|
| Ano: 1968 |
URL: http://archimer.ifremer.fr/doc/1968/publication-7279.pdf |
| |
|
| |
|
|
| His, Edouard. |
| Many studies on the ecology of oysters from the genera Crassostrea (Sacco) and Ostrea (Linneaus) have demonstrated that salinity plays a role in determining adult behaviour, gametogenesis, spawning and larval survival. By cultivating oysters in the laboratory, egg and larval development has been studied in different salinities, in controlled conditions. However, few studies perform the same type of experiments on individuals of different ages, and in particular, on juvenile oysters only a few months old still attached to the spat collector. Kinne (1966) stressed that for a given adult, the upper and lower salinity limits depend on its physiological condition, its age (stage in the life cycle) and also its origin. It was thus of interest to study spat... |
| Tipo: Text |
|
| Ano: 1968 |
URL: http://archimer.ifremer.fr/doc/1968/publication-3189.pdf |
| |
|
|
| Arbault, Suzanne; Boutin, Nicole. |
| The Bay of Biscaysensu lato, from the Cornouaille peninsula to the northern coasts of Spainlines of French coasts and harbours a great number of edible fish. It thus holds a pivotal position in French fisheries oceanography. The Scientific and Technical Institute of Marine Fisheries thus organised oceanographic cruises on board the research vessel "Thalassa" to carry out seasonal studies on ichthyoplankton and environmental factors (temperature, salinity, oxygen) over a five-year period. The ichthyoplankton study had two goals: first, to identify eggs and larvae of all fish species in the area and second, to detect eggs and larvae of certain fish of high economic value, in order to potentially locate adults in the same areas and at the same time... |
| Tipo: Text |
|
| Ano: 1968 |
URL: http://archimer.ifremer.fr/doc/1968/publication-3190.pdf |
| |
|
| |
|
|
| Paris, J; Quignard, Jean-pierre. |
| A characteristic feature of flatfishes (order Heterosomata) is the absence of pigmentation on their blind side. Asymmetric colouration is related to body asymmetry and with the bottom-dwelling habit of these fish. Pelagic larvae are symmetrical and usually possess chromatophores on both sides of the body. When one of the eyes migrates to one side or the otherto the left or to the right and the larva settles on the bottom, the chromatophores on the blind side disappear. In certain fishes, such as Reinhardtius, Glyptocephalus, Taeniopsetta, etc., the blind side is usually brownish grey since that is where the melanophores develop. In turbots (Scophthalmus maximus), the blind side is often yellowish brown and in this case, fishermen call them "double... |
| Tipo: Text |
|
| Ano: 1968 |
URL: http://archimer.ifremer.fr/doc/1968/publication-3192.pdf |
| |
|
|
| Arnaud, Pierre. |
| In 1955 and during the first semester of 1956, and then from the first semester of 1960 to the end of 1965, 7 complete years all together, a number of analysis were conducted on the salinities of the Salses-Leucate pond At each time of sampling, samples were taken from 19 different spots in the pond (fig. 1); these spots are spread out enough for the means used in this study to be considered as representative of the whole pond. Concerning the sampling frequency, the original idea of one field trip per month has not been respected, and over the seven years, an average of nine field trips per month was conducted. Salinities are in grams per kilogram of water and are determined by the Mohr-Knudsen method. The salinity means established on this basis and... |
| Tipo: Text |
|
| Ano: 1968 |
URL: http://archimer.ifremer.fr/doc/1968/publication-3758.pdf |
| |
|
|
| Duclerc, J; Fauvel, Yves. |
| L'exploitation des gisements naturels de Chlamys peut donner lieu à une activité limitée mais rémunératrice. Cependant il est indispensable d'organiser cette exploitation dans le but d'assurer la vente de coquillages parfaitement salubres et de protéger les gisements actuellement existants d'une surexploitation. En accord avec les professionnels intéressés, il importerait donc de prendre les mesures suivantes à l'application desquelles il conviendrait de veiller avec attention : limitation de la pêche à la période comprise entre les mois de septembre et de juin, limitation de la puissance des embarcations (80 cv) et de la taille de la drague (2 m de large), limitation des sorties à la matinée, limitation des captures à un maximum de 300 kg par bâteau et... |
| Tipo: Text |
|
| Ano: 1968 |
URL: http://archimer.ifremer.fr/doc/1968/publication-7284.pdf |
| |
|
|
| Deltreil, Jean-pierre. |
| Fed by waters from the Bay of Biscay twice a day at its south-western corner, the triangle formed by Arcachon Bay is largely dominated by oceanic influences. It has a close relationship with the continent, in particular by seasonal inputs of freshwater which can occasionally alter the marine nature of the waters in Arcachon Bay. The hydrology of Arcachon Bay has been extensively studied. The most recent, and most complete, study (Le Dantec, 1968) demonstrated the heterogeneous nature of the bay, forcing the author to treat one by one each of the many channels that form at low tide. ... (unverified OCR) |
| Tipo: Text |
|
| Ano: 1968 |
URL: http://archimer.ifremer.fr/doc/1968/publication-3188.pdf |
| |
|
|
| Corbeil, Marie-josé. |
| Located between Noirmoutier Island and the continent, Bourgneuf Bay (Figure 1) communicates with the Atlantic Ocean to the north-west via a strait of about 12 km long between Saint-Gildas point and the northern tip of Noirmoutier Island, and to the south by the Goulet de Fromentine (a strait). Verger (1957) describes the depths of the bay as being "divided into two parts, one that forms a slope to the north while the other plunges towards the Goulet de Fromentine. A flattened alluvial watershed separates the two slopes." This watershed, on which lies the Passage de Gois that connects Noirmoutier to the continent at low tide, "was formed in the zone where two flood tides meet: the larger, northern one that takes the deep Fain channel and covers a shorter... |
| Tipo: Text |
|
| Ano: 1968 |
URL: http://archimer.ifremer.fr/doc/1968/publication-3186.pdf |
| |
|
|
| Allain, Charles; Aloncle, Henri. |
| Les résultats encourageants obtenus au cours de la campagne du thon pendant l'été 1967, dans le golfe de Gascogne et sur la bordure cantabrique (1), nous ont conduits à élargir cette annee nos investigations sur une aire étendue vers le S au large du Portugal et vers le N au secteur SO de l'Irlande. Le but principal de l'opération était d'étudier la répartition et les migrations du germon depuis le printemps jusqu'au début de l'automne et accessoirement de faire quelques observations sur le thon rouge et les autres espèces qui pourraient être rencontrées. Ce programme a pu être réalisé au cours de deux campagnes qui ont eu lieu du 18 mai au 5 juillet, "avec la Pelagia" et du 19 août au 30 septembre, avec la "Thalassa" et "la Pelagia" travaillant... |
| Tipo: Text |
|
| Ano: 1968 |
URL: http://archimer.ifremer.fr/doc/1968/publication-7286.pdf |
| |
|
| |
|
| |
|
|
| Perez, René. |
| La quantité de laminaires ramassée chaque jour par les goëmoniers, pendant les six mois durant lesquels la récolte est autorisée, dépasse largement les possibilités d'absorption quotidienne des usines, d'où la nécessité de stocker le surplus qui sera utilisé pendant les mois où la récolte est interdite. C'est cette opération de stockage qui constitue actuellement le problème majeur de l'exploitation des laminaires. Ces algues, en effet, pourrissent avec une telle rapidité qu'il faut avoir recours à un traitement préliminaire pour assurer leur conservation. En France, le procédé utilisé est le séchage sur la "dune", procédé on ne peut plus archaïque et qui correspond de moins en moins aux besoins d'une profession à la veille de devenir une des activités... |
| Tipo: Text |
|
| Ano: 1968 |
URL: http://archimer.ifremer.fr/doc/1968/publication-7282.pdf |
| |
|
|
| Le rapport que soumet le CNEXO pour l'année 1968 expose les efforts d'organisation d'un établissement public nouvellement créé. Il ne peut, en conséquence, que présenter seulement le commencement d'une réorientation progressive des recherches et des études menées antérieurement dans le domaine océanique vers l'exploitation des ressources de la mer. Une telle réorientation et, dans cette nouvelle perspective, les premières réalisations à caractère industriel se développent en 1969 selon le Programme national "Océan" présenté par le CNEXO en septembre 1968. [OCR NON CONTRÔLE] |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1968 |
URL: http://archimer.ifremer.fr/doc/1968/rapport-4842.pdf |
| |
|
|
| Morice, Jean; Warluzel, Noël. |
| In November and December 1959, one of us was assigned by the Credit and Technical Assistance Society (SATEC) to do a study on shrimp fishing on the Guiana Shield as practised by American trawlers (Figure 1). This study had both technological and biological goals. It was first necessary to describe the fishing boats and the methods used by American shrimp boats to fish in the Guianas. Each step of processing and packaging of the shrimp was monitored on board as well as on land, from catch up to storage under refrigerated conditions until commercialisation. It was then necessary to evaluate the relative proportions of shrimp and fish in the catches in order to establish the factors governing productivity of the operations. This was done with a view for... |
| Tipo: Text |
|
| Ano: 1968 |
URL: http://archimer.ifremer.fr/doc/1968/publication-3191.pdf |
| |
|
| |
|
|
| Soudan, France. |
| La pollution de la mer peut être chronique ou accidentelle suivant qu'elle résulte des déversements urbains et industriels ou du rejet de matières nocives par suite de naufrages, de retombées d'engins balistiques ou d'ouverture de conduits et containers immergés. Dans le premier cas, elle affecte essentiellement les proches abords de la côte, surtout les estuaires qui drainent tout l'arrière-pays et où s'installent fréquemment les industries grosses consommatrices d'eau ; dans le deuxième, elle peut porter atteinte successivement à la vie marine en haute mer et dans la zone littorale. Dans tous les cas les espèces vivantes sont d'autant plus exposées qu'elles sont moins mobiles : végétaux, coquillages, crustacés, poissons plats, oeufs et alevins risquent... |
| Tipo: Text |
|
| Ano: 1968 |
URL: http://archimer.ifremer.fr/doc/1968/publication-7280.pdf |
| |
| Registros recuperados: 677 | |
|
|
|
