Éditeur(s) : John Wiley & Sons
Résumé : Based on all available seismic refraction data, the seismic structure of the Western Approaches to the English Channel and the South Armorican continental shelf has been established. The correlation of seismic velocities showed a three-fold structure, related to geological layers as follows: 1. High-velocity, deep sequence (4.4-6.6km/sec): metamorphic basement and Lower to Middle Palaeozoic. 2. Intermediate sequence (3.6-4.3km/sec): Permo-Triassic (and Jurassic?) and possibly also Lower Cretaceous on the margin of the Western Approaches. 3. Upper sequence (1.9-3.6km/sec): Cretaceous and Cenozoic sediments. An acoustic unconformity appears to be present between the Upper sequence and the High velocity and Intermediate sequences. Different geomorphology characterizes these layers: the Palaeozoic is tectonized and generally follows the Hercynian structural trends; mainly Permo-Triassic sediments fill the depressions of the Palaeozoic floor, but only in the Western Approaches; eastwards-transgressive Cretaceous and Cenozoic sediments cover discordantly the preceding layers. [NOT CONTROLLED OCR]
Petroleum and the continental shelf of North-west Europe (John Wiley & Sons), 1975 , P. 29-43

Droits : John Wiley & Sons
http://archimer.ifremer.fr/doc/1975/publication-5465.pdf
http://archimer.ifremer.fr/doc/00000/5465/

Éditeur(s) : HAL CCSD John Wiley & Sons
Résumé : International audience
Fundamental & Clinical Pharmacology
Poitiers, France

hal-01122560
https://hal-univ-rennes1.archives-ouvertes.fr/hal-01122560

Éditeur(s) : HAL CCSD John Wiley & Sons
Résumé : International audience
Encyclopedia of Drug Metabolism and Interactions

hal-01117670
https://hal.archives-ouvertes.fr/hal-01117670
DOI : 10.1002/9780470921920.edm061

Éditeur(s) : John Wiley & Sons Ltd
Résumé : 1. The development of macroalgae to the detriment of corals is now one of the major threats to coral reefs. Herbivorous fishes are partly responsible for algal regulation on coral reefs and their overexploitation favours the shift from scleractinian coral-dominated systems towards macroalgae-dominated systems. 2. Marine protected areas (MPAs) that have been established worldwide may benefit coral reefs through the maintenance of high densities of herbivorous fishes which regulate algal growth. 3. The paper assesses whether small MPAs in the Caribbean are able to enhance herbivorous fish stock and by controlling macroalgae help to maintain reef ecosystems. A visual census using band-transects was undertaken around Guadeloupe island where marine reserves have been in place since 1979. The effects of MPAs on both benthic communities and herbivorous fishes are examined. 4. Inside MPAs, herbivorous fish biomass was almost twice as high as outside MPAs and macroalgal cover was significantly lower. Fish size class distributions revealed that large individuals occurred mainly inside MPAs and that few male individuals were found outside MPAs. Copyright (C) 2010 John Wiley & Sons, Ltd.
Aquatic Conservation-marine And Freshwater Ecosystems (1052-7613) (John Wiley & Sons Ltd), 2010-07 , Vol. 20 , N. 5 , P. 516-524

Droits : 2010 John Wiley & Sons, Ltd.
http://archimer.ifremer.fr/doc/00011/12214/9551.pdf
DOI:10.1002/aqc.1118
http://archimer.ifremer.fr/doc/00011/12214/

Éditeur(s) : HAL CCSD John Wiley & Sons
Résumé : International audience
Kisspeptins are now considered key players in the neuroendocrine control of puberty and reproduction, at least in mammals. Most teleosts have two kiss genes, kiss1 and kiss2, but their sites of expression are still poorly documented. As a first step in investigating the role of kisspeptins in the European sea bass, a perciform fish, we studied the distribution of kiss1 and kiss2-expressing cells in the brain of males and females undergoing their first sexual maturation. Animals were examined at early and late in the reproductive season. We also examined the putative expression of estrogen receptors in kiss-expressing cells and, finally, we investigated whether kisspeptins are expressed in the pituitary gland. We show that kiss1-expressing cells were consistently detected in the habenula and, in mature males and females, in the rostral mediobasal hypothalamus. In both sexes, kiss2-expressing cells were consistently detected at the level of the preoptic area, but the main kiss2 mRNA-positive population was observed in the dorsal hypothalamus, above and under the lateral recess. No obvious sexual differences in kiss1 and kiss2 mRNA expression were detected. Additional studies based on confocal imaging clearly showed that most kiss1 mRNA-containing cells of the mediobasal hypothalamus strongly express ERα and slightly express ERβ2. At the pituitary level, both sexes exhibited kiss1 mRNA expression in most FSHβ-positive cells and never in LHβ-positive cells.
ISSN: 0092-7317

hal-00877326
https://hal.archives-ouvertes.fr/hal-00877326
PUBMED : 22886357
DOI : 10.1002/cne.23211

Éditeur(s) : John Wiley & Sons
Résumé : 1. Transitional waters, described as critical transition zones because of their position at terrestrial, freshwater and marine interfaces, provide essential goods and services to the biosphere including human populations. These ecotones face increasing human influence mainly due to population density increase in coastal areas. 2. Transitional water bodies have, to date, received little attention in the development of ecological status indicators, this is a critical deficiency when trying to meet the Water Framework Directive objective of all significant water bodies achieving good ecological status by the year 2015. 3. In order to assess changes in transitional water communities many taxonomic-based indicators have already been proposed but there are a number of concerns for their use such as taxonomic classification difficulties, their unsuitability for multi-site comparisons and their inconsistent relationships with disturbance or stress. 4. Alternative methods based on body size, abundance distribution among functional groups, functional diversity and productivity descriptors are proposed. These methods offer the opportunity to compare sites with different taxonomic compositions and allow derivation of indicators related to ecological status of communities under scrutiny. 5. Finally, the suitability of these taxonomic-free descriptors to provide relevant information for each of the four main biotic compartments in coastal lagoons is discussed. The use of biomass distribution among functional groups for fish, benthos and macrophyte and to use body-size distribution for benthos and plankton is proposed. Copyright (c) 2006 John Wiley and Sons, Ltd.
Aquatic Conservation: Marine and Freshwater Ecosystems (1052-7613) (John Wiley & Sons), 2006-07 , Vol. 16 , N. 5 , P. 469-482

Droits : 2006 John Wiley & Sons, Ltd
http://archimer.ifremer.fr/doc/2006/publication-1849.pdf
DOI:10.1002/aqc.769
http://archimer.ifremer.fr/doc/00000/1849/