... differ in their response to warming and acidification: French scallops show more physiological plasticity, adjusting their proteome and metabolism to maintain growth. Bivalve Proteomics Trade-offs Calcification Climate change Physiological plasticity Regional Council of Brittany http...

...Alexander A. Venn; Coralie Bernardet; Apolline Chabenat; Eric Tambutté; Sylvie Tambutté ABSTRACT Coral calcification relies on the transport of ions and molecules to the extracellular calcifying medium (ECM). Little is known about paracellular transport (via intercellular junctions) in corals...

... of these external skeletons. However, initial predictions of wide-scale sensitivity are changing as we understand more about the mechanisms underpinning skeletal production (biomineralization). These studies demonstrate the complexity of calcification pathways and the cellular responses of animals to these altered...

..., coincident with expansion of the intracellular compartment through the development of gills and other organs. Ca 2+ influx across the nuchal organ and body surface of neonates but not embryos is presumably related to calcification of the exoskeleton. Increases in the levels of Na + and Ca 2+ in the water...

... in the ambient seawater. In scleractinian corals, the oral ectoderm, consisting of multiple specialized cells such as cnidocytes, mucocytes and epitheliomuscular cells ( Fautin and Mariscal, 1991 ), is involved in the transport of Ca 2+ into calicoblastic cells associated with calcification ( Tambutté et al...

... the expression levels of a variety of enzymes and transporters in relation to various diurnally light-dependent physiological processes, which include inorganic carbon absorption, ammonia absorption and assimilation, and calcification. However, daily changes in the protein expression level of DUR3-like...

... processes ( Pörtner, 2008 ). Recent results, primarily from short-term laboratory exposures, suggest that OA negatively impacts growth and calcification in a variety of marine taxa ( Kroeker et al., 2013 ). However, despite the potential for a wide array of ecological consequences ( Gaylord et al., 2015...

... acidification salinity calcification shell mechanical properties energy status mollusks 1 H-NMR spectroscopy Ocean acidification associated with increasing atmospheric CO 2 levels is an urgent problem in the present and future state of oceans. An increase in dissolved CO 2 reduces seawater pH...

... cycles via the release of organic matter. Nevertheless, our current knowledge on basic CWC properties, such as feeding ecology and key physiological processes (i.e. respiration, calcification and organic matter release), is still very limited. Here, we show evidence for the trophic significance...

... calcification intestine estrogen marine teleost endocrine Marine teleost fish are osmoregulators, maintaining their body fluids (∼300 mOsm kg –1 ) hypo-osmotic to seawater (∼1000 mOsm kg –1 ), and thus face the problem of osmotic water loss and the passive gain of ions ( Evans et al., 2005...

... seawater at six pH levels, i.e. pH T 8.1, 7.9, 7.7, 7.5, 7.25 and 7.0. Fertilization success, survival, growth and calcification rates were monitored over a 3 day period. The expression of genes coding for key proteins involved in development and biomineralization was also monitored. Paracentrotus lividus...

...+ via voltage-dependent Ca 2+ channels and possibly an electrogenic Ca 2+ /1H + exchanger. Additionally, CO 2 hydration provides an endogenous source of HCO – 3 . Thus, hydration of endogenous CO 2 forms HCO – 3 for calcification while hydrogen ions are excreted, contributing to continued Ca 2+ uptake...

... invasions bivalve calcification common-garden experiment functional morphology Great Lakes moment of inertia phenotypic plasticity temperature Following their introduction into North America, zebra ( Dreissena polymorpha Pallas) and quagga mussels ( Dreissena bugensis Andrusov) have caused...

... a special interest in its photosynthetic and calcification response to the stress. Two populations collected at 15 and 35 m depths were studied in order to determine whether there was a difference in sensitivity to thermal stress between living depths. Our results show: (a) that calcification...

...Aurélie Moya; Sylvie Tambutté; Eric Tambutté; Didier Zoccola; Natacha Caminiti; Denis Allemand SUMMARY This work, performed on the scleractinian coral Stylophora pistillata , aims at providing new information on the `light-enhanced calcification' process. In a first step, in controlled...

... during the experiment, and fed corals (FC), which were abundantly fed with Artemia salina nauplii and freshly collected zooplankton. Changes in tissue growth, photosynthesis and calcification rates were measured after 3 and 8 weeks of incubation. Calcification is the deposition of both an organic matrix...

...G. Borelli; M. E. Guibbolini; N. Mayer-Gostan; F. Priouzeau; H. De Pontual; D. Allemand; S. Puverel; E. Tambutte; P. Payan SUMMARY Ionic and organic parameters of the otolith calcification process in the trout Oncorhynchus mykiss were analysed in plasma and endolymph over the day:night cycle...

...Alan T. Marshall; Peta L. Clode SUMMARY The relationship between calcification and photosynthesis in coral was investigated using standard sea water with enhanced calcium concentration. In standard sea water at 23°C with the calcium concentration increased by 2.5 mmol l -1 , incorporation...

... in the biomineralization process. Furthermore, it was suspected that metabolically generated CO 2 is also available for calcification. As a means of testing these possible sources of carbon in spicule calcification, key enzymes or transport systems in each pathway were inhibited. First, the enzyme carbonic anhydrase...

...Éric Tambutté; Denis Allemand; Erich Mueller; Jean Jaubert ABSTRACT Ca 2+ compartments, Ca 2+ transport and the calcification process were studied by using 45 Ca as a tracer. The biological model used was clones of Stylophora pistillata developed into microcolonies whose skeleton is entirely...