Suchergebnisse

The intertidal zone of the Northeast Atlantic region : pattern and Process / Stephen J. Hawkins ... [et al.] -- The ecology of the rocky subtidal habitats of the Northeast Atlantic / Keith Hiscock, Hartvig Christie and Trine Bekkby -- Rocky intertidal shores of the Northwest Atlantic Ocean / Steven R. Dudgeon and Peter S. Petraitis -- Subtidal rocky shores of the Northwest Atlantic Ocean : the complex ecology of a simple ecosystem / Ladd E. Johnson, Kathleen A. MacGregor, Carla A. Narvàez and Thew S. Suskiewicz -- Shallow water muddy sands of the Northwest Atlantic Ocean : latitudinal patterns in interactions and processes / Sarah A. Woodin, Susan S. Bell, Jon Grant, Paul V R. Snelgrove and David S. Wethey -- Biodiversity and interactions on the intertidal rocky shores of Argentina (Southwest Atlantic) / Maria Gabriela Palomo, Maria Bagur, Sofia Calla, Maria Cecilia Dalton, Sabrina Andrea Soria and Stephen J. Hawkins -- Species interactions and regime shifts in intertidal and subtidal rocky reefs of the Mediterranean Sea / Lisandro Benedetti-Cecchi, Laura Airoldi, Fabio Bulleri, Simonetta Fraschetti and Antonio Terlizzi -- The restructuring of Levant reefs by aliens, ocean warming and overfishing : implications to species interactions and ecosystem functions / Gil Rilov, Ohad Peleg and Tamar Guy-Haim -- Northeast Pacific : interactions on intertidal hard substrata and alteration by human impacts / Phillip B. Fenberg and Bruce A. Menge -- The Northeast Pacific : interactions on subtidal hard substrata / Eliza C. Heery and Kenneth P. Sebens -- Consumer-resource interactions on an environmental mosaic : the role of top down and bottom-up forcing of ecological interactions along the rocky shores of the temperate Eastern Pacific / Moisés A. Aguilera, Bernardo R. Broitman, Julio A. Vásquez and Patricio A. Camus -- Where three oceans meet : state of the art and developments in Southern African coastal marine biology / Christopher D. McQuaid and Laura K. Blamey -- Rocky shores of mainland China, Taiwan and Hong Kong : past, present and future / Gray A. Williams, Benny K.K. Chan and Yun-Wei Dong -- Biogeographic comparisons of pattern and process on intertidal rocky reefs of New Zealand and Southeastern Australia / David R. Schiel, A.J. Underwood and M. Gee Chapman -- The past and future ecologies of Australasian kelp forests / Sean D. Connell, Adriana Vergés, Ivan Nagelkerken, Bayden D. Russell, Nick Shears, Thomas Wernberg and Melinda A. Coleman -- Kropotkin's garden : facilitation in mangrove ecosystems / Mark Huxham, Uta Berger, Martin W. Skov and Wayne P. Sousa -- Biofilms in intertidal habitats / Hanna Schuster, Mark S. Davies, Stephen J. Hawkins, Richard J. Murphy, Richard C. Thompson and A.J. Underwood -- Interactions in the deep sea / A. Louise Allcock and Mark P. Johnson -- Overview and synthesis / Stephen J. Hawkins, Katrin Bohn, Anaëlle J. Lemasson, Gray A. Williams, David R. Schiel, Stuart R. Jenkins and Louise B. Firth.

WOS:000464891100006 ; International audience The honeycomb worm Sabellaria alveolata is capable of building extensive bioconstructions, including what are currently considered Europe's largest biogenic reefs. The size and volume of these bioconstructions, however, vary greatly, such that not all habitats engineered by S. alveolata may be easily identified as reefs. Given that European environmental legislation protects marine habitats that are classified as "reefs", it is important to identity a clear set of definition criteria. Furthermore, quantifiable and unequivocal criteria are also needed to evaluate the ecological (health) state of these reefs, in order to best monitor and protect them. Here we propose new terminology to describe the physical appearance of these bioconstructions and attempt to link these physical criteria to the physiological state of the tube-building polychaete. We tested whether a bioconstruction displaying outward signs of growth is built by "healthy" worms devoid of physiological stress by analysing three macromolecules (carbohydrates, proteins, lipids), four polar lipid fatty acids, six neutral lipid fatty acid markers and three metabolic enzymes (citrate synthase, catalase and superoxide dismutase). The worms were sampled in bioconstructions of different "Type" (veneer vs. hummock), "Phase" (progradation vs. retrogradation), and "Shore Level" (high shore vs. low shore) at Champeaux in Mont-Saint-Michel Bay, France. Our results show that worms sampled in retrograding reefs (i.e. displaying signs of erosion and colonisation by epibionts such as oysters or mussels), were less physiologically stressed than worms sampled in prograding bioconstructions, possibly due to lower intraspecific competition and hence greater food availability. We therefore suggest management measures should encompass the whole mosaic of biogenic construction Types and Phases. We propose the inclusion of the polar lipid fatty acid arachidonic acid, in combination with the activity of two metabolic enzymes, ...

WOS:000464891100006 ; International audience ; The honeycomb worm Sabellaria alveolata is capable of building extensive bioconstructions, including what are currently considered Europe's largest biogenic reefs. The size and volume of these bioconstructions, however, vary greatly, such that not all habitats engineered by S. alveolata may be easily identified as reefs. Given that European environmental legislation protects marine habitats that are classified as "reefs", it is important to identity a clear set of definition criteria. Furthermore, quantifiable and unequivocal criteria are also needed to evaluate the ecological (health) state of these reefs, in order to best monitor and protect them. Here we propose new terminology to describe the physical appearance of these bioconstructions and attempt to link these physical criteria to the physiological state of the tube-building polychaete. We tested whether a bioconstruction displaying outward signs of growth is built by "healthy" worms devoid of physiological stress by analysing three macromolecules (carbohydrates, proteins, lipids), four polar lipid fatty acids, six neutral lipid fatty acid markers and three metabolic enzymes (citrate synthase, catalase and superoxide dismutase). The worms were sampled in bioconstructions of different "Type" (veneer vs. hummock), "Phase" (progradation vs. retrogradation), and "Shore Level" (high shore vs. low shore) at Champeaux in Mont-Saint-Michel Bay, France. Our results show that worms sampled in retrograding reefs (i.e. displaying signs of erosion and colonisation by epibionts such as oysters or mussels), were less physiologically stressed than worms sampled in prograding bioconstructions, possibly due to lower intraspecific competition and hence greater food availability. We therefore suggest management measures should encompass the whole mosaic of biogenic construction Types and Phases. We propose the inclusion of the polar lipid fatty acid arachidonic acid, in combination with the activity of two metabolic enzymes, ...

WOS:000464891100006 ; International audience ; The honeycomb worm Sabellaria alveolata is capable of building extensive bioconstructions, including what are currently considered Europe's largest biogenic reefs. The size and volume of these bioconstructions, however, vary greatly, such that not all habitats engineered by S. alveolata may be easily identified as reefs. Given that European environmental legislation protects marine habitats that are classified as "reefs", it is important to identity a clear set of definition criteria. Furthermore, quantifiable and unequivocal criteria are also needed to evaluate the ecological (health) state of these reefs, in order to best monitor and protect them. Here we propose new terminology to describe the physical appearance of these bioconstructions and attempt to link these physical criteria to the physiological state of the tube-building polychaete. We tested whether a bioconstruction displaying outward signs of growth is built by "healthy" worms devoid of physiological stress by analysing three macromolecules (carbohydrates, proteins, lipids), four polar lipid fatty acids, six neutral lipid fatty acid markers and three metabolic enzymes (citrate synthase, catalase and superoxide dismutase). The worms were sampled in bioconstructions of different "Type" (veneer vs. hummock), "Phase" (progradation vs. retrogradation), and "Shore Level" (high shore vs. low shore) at Champeaux in Mont-Saint-Michel Bay, France. Our results show that worms sampled in retrograding reefs (i.e. displaying signs of erosion and colonisation by epibionts such as oysters or mussels), were less physiologically stressed than worms sampled in prograding bioconstructions, possibly due to lower intraspecific competition and hence greater food availability. We therefore suggest management measures should encompass the whole mosaic of biogenic construction Types and Phases. We propose the inclusion of the polar lipid fatty acid arachidonic acid, in combination with the activity of two metabolic enzymes, ...