Consulta: creatorFacets:"Latrouite, Daniel"
Registros recuperados: 36
Data/hora: 01/06/2024 09:23:38

Variablility of stable isotope signatures (delta C-13 and delta N-15) in two spider crab populations (Maja brachydactyla) in Western Europe
Provedor de dados: 5
Autores: Bodin, Nathalie; Le Loch, Francois; Hily, Christian; Caisey, Xavier; Latrouite, Daniel; Le Guellec, Anne-marie.
The ontogenic variations of nitrogen and carbon stable isotopic signatures (delta N-15 and delta C-13) were investigated in two spider crab (Maja brachydactyla) populations inhabiting in different biotopes of Western Europe. The Iroise Sea population is localized in Western Brittany and characterized by a seasonal migration occurring on a large bathymetric and habitat gradient while the Seine Bay population, in the Eastern English Channel, remains in a more homogeneous environment during its migration. In the Iroise Sea population, delta C-13 Values increased significantly both with body size and age, revealing a shift towards "benthic-component" prey with spider crab growth. On the contrary, neither body size nor ageing gave rise to a significant trophic...
Tipo: Text
Palavras-chave: Migration; Marine decapod crustaceans; Growth; Feeding; Carbon and nitrogen stable isotopes.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2535.pdf

Données sur la biologie de Ruditapes philippinarum et Ruditapes decussatus en élevage sur la côte morbihannaise
Provedor de dados: 5
Autores: De Kergariou, Gabriel; Latrouite, Daniel; Perodou, D.; Claude, Serge.
Des essais d'élevage de palourdes en milieu ouvert ont été réalisés sur le littoral morbihannais en 1979 et 1980. R. philippinarum atteint une taille commercialisable au bout de 18 mois à 2 ans suivant le site et la densité au semis. Les taux de survie observés sont supérieurs à 50% pour les essais réalisés en 1979, mais inférieurs pour ceux effectués en 1980. Une mortalité quasi totale de R. decussatus a été observée après 6 mois d'élevage, et la croissance des individus survivants est nettement moins rapide que pour l'espèce précédente. Les résultats montrent que R. philippinarum est mieux adaptée, et ils permettent de proposer un protocole d'élevage pour le secteur considéré.
Tipo: Text
Palavras-chave: Palourdes; Biologie; Ruditapes philippinarum; Ruditapes decussatus; Elevage; Morbihan.
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00021/13258/10305.pdf

Identification biogéographique des principaux stocks exploités en Manche, relations avec ceux des régions voisines
Provedor de dados: 5
Autores: Bennet, D; Casey, J; Dare, P; Dawson, W; Flatman, S; Hulme, T; Macer, C; Millner, R; Pickett, G; Vince, M; Lorance, Pascal; Souplet, A; Giret, M; Morin, Jocelyne; Berthou, A; Latrouite, Daniel; Morizur, Yvon; Bossy, S; Ozanne, S.
At present, the majority of fisheries are monitored and regulated in areas which are delineated by arbitrary ICES boundaries which do not necessarily have logical or consistent relationships with biological processes or fish movements. The biogeographical identification of Channel stocks is, therefore, an important step towards developing a rational strategy for the management of their fisheries. This synthesis is based on the wide available knowledge which has not been yet entirely exploited with the purpose of stock identification, for 25 commercially important species in the Channel. In addition, principal technics for stock identification are reviewed likewise environmental characteristics of the Channel, which represent fundamental components in...
Tipo: Text
Palavras-chave: Environnement physico chimique; Méthodes d'identification; Migrations; Zones de ponte; Distribution géographique; Espèces exploitées; Identité de stock; Manche; Physical environment; Identification methods; Migrations; Spawning areas; Geographical distribution; Exploited species; Stock identification; Channel.
Ano: 1993
URL: https://archimer.ifremer.fr/doc/1993/rapport-719.pdf

Behaviour and habitat utilisation of seven demersal fish species on the Bay of Biscay continental slope, NE Atlantic
Provedor de dados: 5
Autores: Uiblein, F; Lorance, Pascal; Latrouite, Daniel.
Much is known in very broad terms about the distribution of deep-sea fishes, but information on fine-scale habitat selection and behaviour in the largest living space on earth is still rare. Based on video sequences from 4 dives performed with the manned submersible 'Nautile' at depths between 400 and 2000 in in the Bay of Biscay, NE Atlantic, we studied the behaviour of co-occurring slope-dwelling deep-sea fishes. Five different habitats were identified according to depth range or topographical and hydrological characteristics. For each fish species or genus that could be identified, estimates of absolute abundance were provided. The most frequently occurring species, round-nose grenadier Coryphaenoides rupestris, blackmouth catshark Galeus melastomus,...
Tipo: Text
Palavras-chave: Submersible observations; Assemblage structure; Density; Locomotion; Vertical positioning; Foraging; Species specific; Behavioural flexibility.
Ano: 2003
URL: https://archimer.ifremer.fr/doc/00000/10666/7591.pdf

OBSERVHAL96, campagne d'observations à finalité halieutique
Provedor de dados: 5
Autores: Latrouite, Daniel; Antoine, Loic; Cosson, Nathalie; Danel, Patrick; Desaunay, Yves; Dupouy, Herve; Galgani, Francois; Lorance, Pascal; Morandeau, Fabien; Morizur, Yvon; Rivoalen, Jean-jacques; Sacchi, Jacques; Troadec, Herve.
The scientific cruise Observhal96 took place in August 4-27, 1996 with the underwater system for exploration and intervention « Cyana » and the support vessel « Suroît ». The goal of this IFREMER first use of a man opereted submersible for a fisheries study was to observe fishes and invertebrates in their environment, as well as fishing gears in operation. All the dives, 2 to 5 hours long, took place off Brittany in Atlantic. Five were shalower than 100 meters, nine between 100 and 200 meters, one at 400 meters and for deeper than 1000 meters.  Six dives have been dedicated to in situ study of the impact of fishing gears : observation of the geometry of a monkfish tramel net and analysis of losses during hauling ; tracks of a bottom trawl and relative...
Tipo: Text
Palavras-chave: Fish behaviour; Fishery ecology; Submarine Cyana; Dive; Underwater observation; Comportement des poissons et invertébrés; Ecologie halieutique; Submersible Cyana; Observation sous marine.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/rapport-1554.pdf

Scénarios d'aménagement des activités de pêche dans la bande cotière bretonne : rapport 2001
Provedor de dados: 5
Autores: Talidec, Catherine; Boncoeur, Jean; Alban, Frédérique; Curtil, Olivier; Le Floc'H, Pascal; Le Gallic, Bertrand; Pennanguer, Stéphane; Berthou, Patrick; Fifas, Spyros; Latrouite, Daniel.
This document is the 2001 activity report delivered by IFREMER, CEDEM (IUEM, UBO) and ENSA of Rennes for a co-financed study by the Brittany region within the framework of the XII CPER. This report is composed of: - an IFREMER study on the historical evolution of the Breton fleet created using data from the "halieutic observations system" (SIH) and surveys on the economic activity of fishing ships. The study is most interested in the Mor Braz and the Sea of Iroise sites. - an analysis by CEDEM of the legal and economic aspects of fishing along the coastal strip through two case studies: A seasonal break from bottom trawling and the diversification of professional fishing towards tourist and recreational economic activities. - a study by ENSA of Rennes on...
Tipo: Text
Palavras-chave: Recreative fishing; Professionnal fishing; Breton fisheries; Survey; Data collection; Fishing fleet; Metier; Fishing activites; Brittany; Golfe du Morbihan; Mer d'Iroise; Mor Braz; Reglementation; Pêche de loisir; Pêche professionnelle; Pêcherie bretonne; Enquêtes; Collectes de données; Flottilles; Metier; Opérations de pêche; Bretagne.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/rapport-2289.pdf

Observations of chondrichthyan fishes (sharks,rays and chimaeras) in the Bay of Biscay (North-eastern Atlantic) from submersibles.
Provedor de dados: 5
Autores: Lorance, Pascal; Latrouite, Daniel; Seret, Bernard.
Forty one manned submersible dives were carried out during 2 cruises in the Bay of Biscay covering a range of depth from about 100 to 2100 m. Chondrichthyan species were observed in most of the dives, some of them were easily identified and their behaviour could be studied. Twenty-two chondrichthyan species (9 sharks, 8 rays and 5 chimaeras) were recorded. Shark species were always seen active except Scyliorhinus canicula and Galeus melastomus. Some representatives were found motionless on the bottom, sometimes forming groups for the first species. Chimaeras appeared to strongly react to the presence of the submersible. The density of chondrichtyes and their relative frequency in the total fish assemblage were estimated, the results are globally consistent...
Tipo: Text
Palavras-chave: Submersible; Deep Sea; Bay of Biscay; ANE; Chondrichthyans.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/acte-2571.pdf

Analyse quantitative et qualitative des captures de tourteaux Cancer pagurus par la flottille de Manche-ouest
Provedor de dados: 5
Autores: Latrouite, Daniel; Morizur, Yvon.
French potters from « Manche ouest » harbours ish edible crab Cancer pagurus in English Channel, Iroise Sea and along north Biscay Bay shelf. Monthly landings of the offshore fleet analysed from logbooks for the period 1985-1987 indicate changes in fishing areas. The mean length of males, the mean length of females and the sex-ratio have been analysed by Principal Component Analysis in 1981-1987 samples. The heterogeneity between catches from different statistical rectangle (30 x 40 nautical miles) was great enough to deduce a way of raising composition from samples to total landings. It also offers the possibility to verifiy and correct declaration on geographical origin of landings.
Tipo: Text
Palavras-chave: Biscay Bay; Catch composition; France; Western Channel; Sampling; Iroise; Edible crab; Cancer Pagurus; Fishing; Golfe de Gascogne; Iroise; Manche; Echantillonnage; Composition des captures; Tourteau.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/1988/acte-1416.pdf

Le développement de la crépidule sur le gisement de coquilles Saint-Jacques de la baie de Saint-Brieuc
Provedor de dados: 5
Autores: Dupouy, Hervé; Latrouite, Daniel.
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/1979/publication-7161.pdf

Relations biométriques chez l'araignée de mer Maja squinado : longueur de référence, distinction juvénile-adulte, taille-poids.
Provedor de dados: 5
Autores: Le Foll, Didier; Latrouite, Daniel; Noel, Philippe.
For the analysis of spider crab populations it is necessary to split the size composition by sex and between age groups, and to convert length to weight. In some cases different length measurements need to be correlated in order to compare the results from different authors. Morphometricaly it is easy to use the abdominal flap to distinguish between male and female, and between immature and adult females, but for immature and adult males it is necessary to use Somertons method to analyse the relation between carapace length and claw width. The relation between carapace length and weight is normally established at moult stage 4, and it obtained separately for males, females, immature and adults spider crabs. When measuring carapace length the present length...
Tipo: Text
Palavras-chave: Adult; Biometry; Western Channel; Juvenile; Biology; Maja brachydactyla; Spider crab; Adulte; Juvénile; Manche; Maja brachydactyla; Biométrie; Araignée.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/1993/acte-1410.pdf

Stockage et transport des crustacés vivants
Provedor de dados: 5
Autores: Chartois, Herve; Latrouite, Daniel; Le Carre, P.
Fishing and trade of living crustaceans are dynamic commercial sectors in France. 25 000  tons of local or imported crabs, lobsters , crawsfishes are yearly treated. Based upon a literature review and fishmongers interviews, this study  describes the current pratices and problems associated to live crabs and  lobsters storage. Supply conditions of live crustaceans, marketing  networks, and biological, ecological and physiological characteristics of crustaceans were discussed. Morever, storage facilities, their  operating rules and factors affecting the survival rate under storage  and transportation conditions were reviewed.
Tipo: Text
Palavras-chave: Lobsters; Crabs; Shellfish; Survival rate; Transport; Storage; Crustacean; Fishery products; Langoustes; Homards; Crabes; Physiologie; Survie; Transport; Stockage; Crustacés.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/1994/rapport-634.pdf

Synthèse hydrobiologique du site électronucléaire de Flamanville
Provedor de dados: 5
Autores: Dreves, Luc; Lampert, Luis; Abernot, Chantal; Martin, Jocelyne; Arzel, Pierre; Dumas, Franck; Latrouite, Daniel; Schlaich, Ivan; Woehrling, Daniel.
This synthesis report assesses the current state of the marine hydrobiological knowledge acquired in the surroundings of the Flamanville electronuclear site (north-west of Cotentin), in the framework of the various project and monitoring programs in the pelagic, benthic and halieutic domains carried out on this site since 1976. Each domain is divided, as much as necessary, into different study areas such as hydrobiology, phytoplankton, microbiology, crustacean larvae or macrophyte algae. For each area, a series of parameters, considered as representative of the evolution of this area, is studied. In this way, for the hydrological area, the sea water temperature and salinity, the mineral nutriment concentrations, the holagen compounds and the boron are...
Tipo: Text
Palavras-chave: Pelagos; Halieutique; Benthos; Surveillance; Synthèse; Flamanville; Centrale nucléaire.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/rapport-6405.pdf

Données sur la reproduction et la taille de première maturité du homard Homarus gammarus d'Iroise et du golfe de Gascogne
Provedor de dados: 5
Autores: Latrouite, Daniel; Leglise, Michel; Raguenes, Gérard.
This paper deals with the lobsters caught by French fishermen off the "Conquet" (Iroise sea) and off "Ile d'Yeu" (Biscay Bay) on the French atlantic coast. The size at first maturity, defined as the size at which 50 % of female are able to reproduce, is deduced from the analysis of size frequency in landings. It is also shown that more than 50 % of the mature female are spawing each year ; the periods of hatching in the natural environment are also established.
Tipo: Text
Palavras-chave: Size at maturity; Western Channel; Reproduction; Homarus gammarus; Lobster; Atlantic; Biscay Bay; Iroise sea; Golfe de Gascogne; Iroise; Manche; Taille de maturité; Reproduction; Homarus gammarus; Homard.
Ano: 1981
URL: http://archimer.ifremer.fr/doc/1981/acte-1414.pdf

Compte-rendu de la campagne OBSERVHAL98 - Observations à finalité halieutique
Provedor de dados: 5
Autores: Latrouite, Daniel.
The scientific cruise Observhal98 took place in Biscay Bay, May 14 to June 6, 1998, with the submersible Nautile operated from the research vessel Nadir. The goal was to make direct underwater observations on fishes and invertebrates of commercial interest, on the environment in which they live and on the impact of fishing gears. A total of 22 dives, 2 to 5 hours long have been operated, ten by depth 1800 to 1000 m, three by 500 to 200 m, seven by 80 to 200 m and two in the water column. An in situ technic have been developped and operated from the submarine, with the aim of studying the growth scheme of deep water fishes. Specimen of Hoplostethus atlanticus and Trachyscorpia cristualata have been caught, anesthetised, injected with vital coloring and...
Tipo: Text
Palavras-chave: Halieutique; Nautile; Plongée; Sous marin; Expérimentation; Observation; Fisheries; Nautile; Dive; Submarine; Experimentation; Observation.
Ano: 1999
URL: https://archimer.ifremer.fr/doc/1999/rapport-920.pdf

Essai de culture suspendue de la Coquille Saint Jacques Pecten maximus: influence de la transplantation sur le développement gonadique
Provedor de dados: 5
Autores: Latrouite, Daniel; Claude, Serge.
La mise au point et le développement de techniques de captage en milieu naturel et de production en milieu contrôlé permettent d'envisager pour la coquille Saint Jacques une aquaculture extensive du type de celle réalisée pour l'huître sur parc non découvrant : un ou plusieurs centres favorables à la collecte du naissain pourvoient en juvéniles des secteurs propices à l'élevage. Une plus value marchande peut être obtenue lorsque le changement de milieu s'accompagne de modifications physiologique ou organoleptiques. Ainsi, la présence de la glande génitale développée (ou corail) est particulièrement appréciée du consommateur français. Cet état s'observe tout au long de l'année sur les gisements de Bretagne Sud et de Rade de Brest alors qu'en Baie de Saint...
Tipo: Text
Palavras-chave: Conchyliculture; Coquille Saint Jacques; Captage; Croissance; Mortalité; Elevage.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00015/12660/9531.pdf

Observations sur la croissance du tourteau Cancer pagurus en Manche et en golfe de Gascogne
Provedor de dados: 5
Autores: Latrouite, Daniel; Morizur, Yvon.
La production française de tourteaux provient pour l'essentiel des captures réalisées en Manche et dans le Golfe de Gascogne ; l'appréhension des caractéristiques de croissance pour cette ressource est une contribution nécessaire à l'aménagement de l'exploitation des pêcheries concernées. Des expériences de marquage-recapture effectuées de 1981 à 1984 sur les populations des deux bassins permettent une approche de la croissance de Cancer pagurus pour les deux zones concernées.
Tipo: Text
Palavras-chave: Molt frequency; Increment; Edible crab; Growth; Aquiculture; Bay of Biscay; Channel; Cancer pagurus; Fréquence de mue; Accroissement; Croissance; Cancer pagurus; Tourteau.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/1988/acte-1417.pdf

Etude préalable à la gestion des stocks de crustacés en Bretagne
Provedor de dados: 5
Autores: Autissier, Isabelle; Coum, Andrée; Cuillandre, Jean Pierre; Veron, Gerard; Latrouite, Daniel.
At the end of the seventies, as fishing abundance (based on Catch Per Unit Effort) in crabs and lobster fishery steadily declined, operating expenses increased, and fishing boats changed strategy (changing metiers, covering larger distance to fishing areas, fishing seasons being extended, ...) professionals and scientists aimed to consider reinforcing management measures. To enlighten and support potential related decisions, the Comité Régional des Pêches et Cultures Marines de Bretagne (Regional Committee for fishing and farming in Brittany), together with the ISTPM (Ifremer since 1984), conducted a survey on the exploited populations and gave a review of the involved Breton fleet. This report shows the results of a survey conducted among fishermen,...
Tipo: Text
Palavras-chave: Landings; Catch rates; Fishing area; Fishing effort; Fleet; Brittany; Edible crab; Lobster; Spider crab; Apport; Rendement; Zone de pêche; Effort de pêche; Flottille; Bretagne; Tourteau; Homard; Araignée.
Ano: 1981
URL: http://archimer.ifremer.fr/doc/1981/rapport-1548.pdf

Les pêcheries du golfe normand breton. Options d'aménagement
Provedor de dados: 5
Autores: Berthou, Patrick; Boncoeur, Jean; Prat, Jean-luc; Latrouite, Daniel; Le Gallic, Bertrand; Fifas, Spyros; Curtil, Olivier.
En s'appuyant sur la relative autonomie de la pêche dans le golfe normand-breton et les possibilités de décentralisation que celle-ci permet d'envisager, l'étude proposée vise à définir et à comparer les mérites des options institutionnelles envisageables pour la rationalisation de la pêche dans le golfe normand-breton.
Tipo: Text
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00129/24053/22018.pdf

Aquaculture extensive et repeuplement
Provedor de dados: 5
Autores: Buestel, Dominique; Nicolas, R.; Morize, E.; Rohan, R.; Latrouite, Daniel; Le Borgne, Y.; Cochard, Jean-claude; Flassch, Jean-pierre; Uno, Yutaka; Audouin, Jacques; Legall, J.y.; Jezequel, M.; Lorec, J.; Henocque, Yves; Reveche, C.; Girin, Michel; Laurec, Alain; Herry, P.
L'aquaculture extensive et le repeuplement sont deux modes d'exploitation des ressources halieutiques qui ne font appel, une fois les juvéniles produits, ni à un apport de nourriture artificielle, ni à un contrôle continu de la part de l'exploitant, mais dépendent par contre de la productivité du milieu marin, Cette approche repose sur l'idée que le principal facteur limitant d'une population naturelle est le faible nombre de survivants après les premiers stades, et que l'on peut par alevinage, aménagement du milieu ou autres techniques, augmenter la production d'une espèce exploitable, Le but de ces journées d'étude est de faire le point des connaissances sur ces sujets, à l'intention des scientifiques mais aussi des utilisateurs, Il a paru souhaitable de...
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00018/12941/9907.pdf

La flottille artisanale française de Manche Ouest. Bilan des connaissances
Provedor de dados: 5
Autores: Morizur, Yvon; Berthou, Patrick; Latrouite, Daniel; Veron, Gerard.
A survey made during 1986-1987 on the artisanal fleet of the artisanal fleet in Northern Brittany and Western part of Cotentin allowed to describe this fleet in term of activity and metiers. Catches are given by species and by type of fishing activity. The result permit to outline interactions between the various activities and exploited resources. A summary of knowledge on exploited species is given.
Tipo: Text
Palavras-chave: Flottille; Métiers; Typologie; Interactions; Expèces exploitées; Manche; Fleet; Metiers; Interactions; Exploited species; Channel.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00422/53390/54252.pdf

Étude préparatoire a une reconquête des niveaux de ressource en langouste royale (Palinurus elephas) en mer d'Iroise
Provedor de dados: 5
Autores: Latrouite, Daniel; Lazure, Pascal.
The study conducted in the framework of an agreement between Ifremer and the Local fisheries committee at Audierne is part of a project to restore spiny lobster Palinurus elephas stock levels in the Iroise Sea. It is supported by professional fishermen from Finistère and by the Regional fisheries committee of Brittany.  After a brief review of the way lobster stocks are managed worldwide, followed by the major biological and ecological features of red lobster and the state of fisheries in Europe and North Africa, the very poor state of the resource along French coast is borne out by the statistics of landings.   Various scenarios (not alternatives) to promote the rebuilding of the biomass are suggested:  minimum landing size increase, seasonal closure of...
Tipo: Text
Palavras-chave: Phyllosoma; Iroise; Stock; Rebuilding; Overfishing; Palinurus elephas; Red lobster; Phyllosomes; Iroise; Stock; Reconstitution; Surexploitation; Palinurus elephas; Langouste rouge.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/rapport-1198.pdf

Le tourteau (Cancer pagurus) et son exploitation par les flottilles de Bretagne Nord, 1984-1988
Provedor de dados: 5
Autores: Latrouite, Daniel.
Due to the unsuitability of the north brittany coastal fishing grounds for trawling, the fishing activity of the harbours of this coast has been oriented towards the catch of invertebrates and peculiarly the large crustaceans.  After, in the beginning of the XIX century, looking for lobster and spiny lobster, fishing has been, since the seventies, centered on the catch of the edible crab (Cancer Pagurus) and of the spider crab (Maia squinado). The first part of this document introduces the context of the exploitation and the concerned fleets. The second part treats of the biological parameters of the edible crab: growth, reproduction, migration and pathologies. The third part, devoted to the exploitation and the monitoring of the edible crab stock, is an...
Tipo: Text
Palavras-chave: Exploitation; Biology; Cancer pagurus; Edible crab; North brittany; Exploitation; Biologie; Cancer pagurus; Tourteau; Bretagne Nord.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/rapport-689.pdf

Observations sur la maturité sexuelle et la ponte du tourteau Cancer pagurus en Manche
Provedor de dados: 5
Autores: Latrouite, Daniel; Noel, Philippe.
Few observations have been reported on the reproductive cycle and size at maturity of female edible crab in the Channel. This could be linked to non catchability of berried females. During the present study carried over three different years, females were taken from commercial catches prior to the spawning period and placed in tanks in the laboratory. The various criteria used to establish the mean size at first maturity are discussed and the relation between size and functional maturity is described. The smallest berried females are at a carapace length of 76mm, and maximum values are reached at about 105mm. The mean value is between 85 and 90mm carapace length. The duration of the spawning period was the same in each years, extending from mid-November to...
Tipo: Text
Palavras-chave: Spawning; Sexual maturity; Reproduction; Channel; Cancer pagurus; Edible crab; Reproduction; Ponte; Manche; Tourteau; Maturité sexuelle; Cancer pagurus.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/1993/acte-1420.pdf

Fécondités individuelle et par recrue du homard européen Homarus gammarus (L.) des cotes françaises
Provedor de dados: 5
Autores: Latrouite, Daniel; Morizur, Yvon; Raguenes, Gerard.
Several relationships between the fecundity and the weight or the size of females have been studied for three different (based on "eye-index") stages of incubation. The relationship between the average weight of eggs at the beginning of incubation and the size of the females shows that the egg size varies according to the female's size. Loss of eggs during incubation has been studied ; the average loss between the two extreme stages of incubation is around 27%. This is a lowered value of what accurs during the whole incubation period. Egg losses are greater for small females than for big females. The annual frequency of spawning and size at first maturity have been determined in for differents fishing effort than by the commercial size.
Tipo: Text
Palavras-chave: Maturity; Fecundity per recruit.; Reproduction; Europe; France; Lobster; Aquiculture; Homarus gammarus; Fecundity; Fécondité par recrue; Fécondité; Maturité; Reproduction; Homarus gammarus; Homard.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/acte-1404.pdf

Contribution à l'étude de la reproduction du pétoncle noir (Chlamys varia) de la baie de Quiberon
Provedor de dados: 5
Autores: Perodou, Dominique; Latrouite, Daniel.
La perspective de reconstituer des gisements de pétoncle ou de pratiquer une aquaculture extensive nous a conduits à réaliser en baie de Quiberon des expériences de captage de naissain. Des observations sur la reproduction ont été faites à cette occasion. La période d'activité gonadique s'étend de Mars à Septembre mais la ponte principale intervient au début du mois de juin ; elle ne se concrétise par un bon taux de fixation que si la température de l'eau est au moins égale à 16°C. Des pontes secondaires sont observées jusqu'en Août - Septembre. Cette espèce est hermaphrodite est la relation entre le sex-ratio et la taille conduit à suggérer que la création de réserves provisoires sur un gisement exploité serait de nature à améliorer le potentiel...
Tipo: Text
Palavras-chave: Pétoncle noir; Chlamys varia; Reproduction; Captage; Baie de Quiberon.
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00021/13260/10307.pdf

Etude des stocks halieutiques de langoustes au Cap Vert et proposition de modalités de gestion de ces stocks - Rapport de mission 5 au 15 décembre 1996
Provedor de dados: 5
Autores: Latrouite, Daniel.
Cette mission s'inscrit en exécution de la Convention franco-capverdienne "Appui aux filières productives primaires au Cap Vert", composante 03 Pêche", financée par le Fond d'Aide et de Coopération (Convention n° 95005500 du 17 janvier 1996). Elle a été réalisée conformément aux termes du protocole n°96/1212642/F entre la Mission Française de Coopération et d'Action Culturelle à Praïa et l'Institut Français de Recherche pour l'Exploitation de la Mer. Elle constitue la prestation "mission d'expert Ifremer au Cap Vert" prévue pour l'année 1996.  Elle avait pour objectifs particuliers:  - dans le cadre de la Réunion sur l'Investigation et la Gestion Halieutique au Cap Vert, établir et présenter un point sur les ressources en langoustes, leur exploitation et...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00069/17980/15508.pdf

Pêche de la langouste rouge Palinurus elephas en france. Eléments pour fixer une taille marchande
Provedor de dados: 5
Autores: Latrouite, Daniel; Noel, Philippe.
From the end of XIX century to the 1950', spiny lobster (Palinurus elephas) fishing has been an important economical activity for potters of Brittany and led to landings over two thousands tons. Later, impoverishment of traditional fishing grounds and closure, to French fleet, of foreign fishing area obliged a reconversion of potters toward crabs (edible crab and spider crab). Recently in the 80', development of a netting activity has restarted catches of spiny lobster (at a modest scale). Presently, the only reglementary measure concerning this species/metier is a national minimum legal size (total length) but European Commission has wished that a European MLS would be established. In that aim, this paper presents the main features of spiny lobster...
Tipo: Text
Palavras-chave: Reproduction; Fishery; France; Atlantic; Droit; Commerce; Size; Spiny lobster; Palinurus elephas; Biometry; Fishing; Reproduction; Biométrie; Pêche; Palinurus elephas; Langouste rouge.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/1997/acte-1415.pdf

Observations ichtyologiques effectuées en 1982
Provedor de dados: 5
Autores: Delmas, Guy; Quero, Jean-claude; Duron, M; Fonteneau, Joseph; Lafon, A; Latrouite, Daniel.
The authors give data on the catches, during 1982, of Chaunax pictus from Bay of Biscay, of Carcharhinus sp. from Arcachon basin and of scabbard-fish Lepidopus caudatus from la Rochelle. They notify of rather abundant observations of sunfish Mola mola, perhaps in connection with the hot summer. NOT CONTROLLED OCR
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/publication-3664.pdf

Mortalité du tourteau Cancer pagurus provoquée par le dinoflagelle parasite : Hematodinium sp.
Provedor de dados: 5
Autores: Latrouite, Daniel; Morizur, Yvon; Noel, Philippe; Chagot, Dominique; Wilhelm, G.
Unusural crab mortality in winter led us to identify a Hematodinium like parasitic dinoflagellate in the blood of edible crabs Cancer pagurus. Crabs from several fishing areas (the English Channel, the Iroise sea, the bay of Biscay, off Scotland) and from one area of the Channel shore were examined. The crab parasit was found everywhere we investigated and throughout the year. The prevalence which was found independant of the intermolt stage, sex and size of crabs was higher inshore than offshore. The pathogenicity is assumed to differ according to season.
Tipo: Text
Palavras-chave: Edible crab; Pathology; Bay of Biscay; Iroise sea; Channel; Parasite; Mortality; Hematodinium; Bitter crab desease; Dinoflagelle; Aquiculture; Cancer pagurus; Mortalité; Hematodinium; Cancer pagurus; Tourteau; Pathologie.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/1988/acte-1418.pdf

Bilan des essais d'élevage de la palourde sur le littoral Morbihannais - 1979
Provedor de dados: 5
Autores: Latrouite, Daniel; Perodou, Dominique.
Au cours des 15 dernières années, l'évolution des techniques ostréicoles a profondément modifié la structure sociale de cette profession. La maladie de l'huître portugaise (1970/1971), celle de la plate depuis 1969, ont provoqué de nouveaux bouleversements. Ces derniers évènements montrent les risques que courent les exploitations reposant sur la monoculture. La mise au point au JAPON, aux USA puis en ANGLETERRE et en FRANCE des techniques de production du naissain de diverses espèces de palourdes et le développement des écloseries à mollusques, permettent d'envisager l'élevage de ces coquillages pour lesquels la collecte en milieu naturel n'est pas contrôlée. Les premiers essais furent pour la plupart réalisés en plaçant les palourdes dans des poches...
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00046/15694/13096.pdf

Bilan des essais d'élevage de la palourde sur le littoral Morbihannais - 1981
Provedor de dados: 5
Autores: De Kergariou, Gabriel; Latrouite, Daniel; Perodou, D.; Claude, Serge; Jomier, L.
Le contrat de pays d'Auray avait permis de réaliser en 1979 une première série d'essais d'élevage de palourdes en milieu ouvert. Les résultats ont été exposés dans un rapport intitulé: "Bilan des essais d'élevage de la palourde sur le littoral morbihannais" diffusé en Décembre 1979. Les principales conclusions en étaient les suivantes: - la protection des semis contre les prédateurs (crabes verts) est essentielle : le barrage à naissain utilisé traditionnellement en ostréiculture donne de bons résultats dans ce domaine. - la palourde du Pacifique (R. philippinarum) a une croissance et un taux de survie supérieurs à céux de la palourde locale et de ce fait semble mieux adaptée à ce type d'élevage. Le crédit restant (annexe) a permis de financer une seconde...
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00046/15697/13099.pdf

L'exploitation de la coquille Saint-Jacques Pecten maximus (L.) en France - 2ème partie : Evaluation et gestion du stock de la baie de Saint-Brieuc
Provedor de dados: 5
Autores: Dupouy, Hervé; De Kergariou, Gabriel; Latrouite, Daniel.
Les études de dynamique de population, poursuivies depuis 1974 sur le gisement coquillier de la baie de St-Brieuc, ont permis d'acquérir une bonne connaissance du stock et de son évolution.  Sur le plan biologique, certaines caractéristiques, relativement stables, du stock ont été définies : il s'agit de la croissance en taille et en poids, de l'âge de la première maturité sexuelle, du cycle de reproduction et de la mortalité naturelle. Cependant l'importance du recrutement demeure très aléatoire. Les campagnes de recherches à la mer permettent de prévoir un ou deux ans avant leur entrée dans les captures, l'importance des recrues et donc de définir des quota adaptés aux fluctuations du stock. Le système de quota mis en place en 1975 a été accompagné par...
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/publication-7030.pdf

Observations sur le cycle complet d'élevage de palourdes et de clams en surélévation
Provedor de dados: 5
Autores: Latrouite, Daniel; Claude, Serge.
First rearing attempts with the european clams Ruditapes decussatus, the pacific clams Ruditapes philippinarum and the clam Mercenaria mercenaria have been realized by placing the bood into grating cages above the ground. This technic permits a good survival during the so-called "pre-growth" stage. However, if rearing of juveniles is persued beyond 2 centimeters, growth is strongly delayed and mortality increases due to valve distortion and shell infection by parasitic worms.
Tipo: Text
Palavras-chave: Elevage; Palourde; Ruditapes philippinarum; Ruditapes decussatus; Clams; Mercenaria mercenaria; Technique.
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00021/13261/10308.pdf

Catalogue international des activités des flottilles de Manche, approche des interactions techniques
Provedor de dados: 5
Autores: Tetard, A; Boon, M; Bennett, D; Berthou, Patrick; Bossy, S; Casey, J; De Clerck, R; Delpech, Jean-paul; Dintheer, C; Giret, M; Large, P; Latrouite, Daniel; Lemoine, Michel; Millner, R; Morizur, Yvon; Ozanne, S; Palmer, D; Pawson, M; Pickett, G; Vince, M.
This work is the result of collaboration between the English, French, Channel Isles and Belgian laboratories which are involved in a study of the English Channel. Its subject is the activities of fleets and fleet interactions, and it complements other work on the biogeographical identification of Channel fish and shellfish stocks (published), and on modelling the fleets' interactions as they exploit the resources (in preparation). The concept of a métier is defined as being the use of one fishing gear to catch one or several species targeted during a particular season in a given area. On this basis, 74 métiers were identified during 1989-90. For each métier we give a brief description of the catching gear, the target species and most usual by-catch, the...
Tipo: Text
Palavras-chave: Fisheries management; Fishing effort; Technical interactions; English Channel; Métier; Gestion des pêcheries; Distribution de l'effort de pêche; Interactions techniques; Manche; Métiers.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/1993/rapport-704.pdf

Campagne PROCELT1 : prospection des ressources halieutiques benthiques et démersales aux accores du plateau celtique
Provedor de dados: 5
Autores: Latrouite, Daniel; Dorel, Didier; Dupouy, Herve; Quero, Jean-claude.
The « PROCELT 1 » scientific cruise took place from 5 to 28 June 1984 aboard Ifremer's research vessel «Thalassa». Its main objective was to prospect for benthic and demersal biological resources, whether traditionally fished or potential species, on the Celtic shelf-break between 47°30' N and 52°00' N and to assess them whenever possible.   83 hauls were made in stratified random sampling based on bathymetric criteria (between 200 and 800 metres) using a Lofoten trawl with 31.20 metres of headrope and 17.70 metres of footrope.   This document reports on the main results of the survey: biological observations and abundance of main species per layer, observations of invertebrates and collecting of material. 26 spec sheets give the biological observations...
Tipo: Text
Palavras-chave: Fisheries; Celtic shelf edge; Exploration; Ocean research cruise; Pêche; Accores plateau celtique; Exploration; Campagne océanographique.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/rapport-1199.pdf

Review of the biology, ecology and fisheries of Palinurus spp. species of European waters: Palinurus elephas (Fabricius, 1787) and Palinurus mauritanicus (Gruvel, 1911)
Provedor de dados: 5
Autores: Gõni, R; Latrouite, Daniel.
Palinurus elephas and Palinurus mauritanicus are the only species of the family Palinuridae that occur in the Northeast Atlantic and Mediterranean. Of the two, Palinurus elephas is the most abundant and accessible and has traditionally been the preferred target of lobster fisheries throughout its range. Palinurus mauritanicus has a deeper distribution and has been an important target of fisheries mainly in the Central Eastern Atlantic. The high unit value and the relative scarcity of these species have been important obstacles to research and knowledge of their biology, ecology and fisheries is limited. Nevertheless, over time a considerable number of studies has been conducted, though most of these are contained in university theses or in publications of...
Tipo: Text
Palavras-chave: Fisheries; Ecology; Biology; European waters; Spiny lobsters; Review.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-3625.pdf