@article {6578,
	title = {Influence of the physiological condition of bivalve recruits on their post-settlement dispersal potential},
	journal = {Marine Ecology Progress Series},
	volume = {636},
	year = {2020},
	pages = {77 - 89},
	abstract = {Secondary dispersal (= migration) of bivalves occurs after metamorphosis and is a key recruitment process that can radically change patterns of primary settlement. An example of secondary dispersal is active migration behavior of bivalve recruits such as in bysso-pelagic drift. We hypothesize that these active migrations represent an energy cost for recruits and that the ability to actively migrate will depend upon the recruit{\textlnot}{\'\i}s physiological profile (quantity and quality of energy reserves). In lab experiments, we hatched 4 batches of recruits of\&nbsp;Venus verrucosa\&nbsp;with different physiological profiles by varying rearing temperature and diet composition. We then introduced these recruits into a fall velocity tube (5 m height) to estimate their vertical fall velocity as a proxy of their dispersal potential: slower fall velocity implies enhanced dispersal potential. We also compared alive vs. passive (dead) recruits to assess behavioral differences. Fall velocity increased logarithmically with recruit volume for each treatment, and no differences between active and passive individuals were observed for batches reared at 20{\textdegree}C with a mixture of\&nbsp;Tisochrysis lutea\&nbsp;and\&nbsp;Chaetoceros gracilis. By contrast, active recruits in 2 other treatments (T. lutea\&nbsp;at 20{\textdegree}C and a mix of\&nbsp;C. gracilis\&nbsp;and\&nbsp;T. lutea\&nbsp;at 15{\textdegree}C) significantly decreased their fall velocity regardless of their volume. Moreover, the ability of recruits to control their fall velocity by their behavior was correlated with triglyceride content. Recruits with the highest energy reserves had the greatest capacity to decrease their fall velocity, which suggests a major role of physiological conditions on potential secondary dispersal. We also used a benthic flume to test the substrate selection ability of recruits depending on their physiological profile and found no differences between physiologically different batches. However,\&nbsp;V. verrucosa\&nbsp;recruits preferred fine sediments, unlike adults, which live mainly in coarse sediment habitats; such difference in substrate preference suggests potential secondary migrations between nursery and adult areas.},
	keywords = {Behavior, Bivalves recruits, Energetic reserves, Physiology, secondary migrations, Venus verrucosa},
	issn = {0171-8630},
	doi = {10.3354/meps13223},
	url = {https://www.int-res.com/abstracts/meps/v636/p77-89},
	author = {Martin For{\^e}t and Fr{\'e}d{\'e}ric Olivier and Miner, P and Gesche Winkler and Nadalini, J-B and R{\'e}jean Tremblay}
}
@article {6916,
	title = {An integrated investigation of the effects of ocean acidification on adult abalone (Haliotis tuberculata)},
	journal = {ICES Journal of Marine Science},
	volume = {77},
	year = {2020},
	month = {Sep-01-2020},
	pages = {757 - 772},
	type = {research article},
	abstract = {Ocean acidification (OA) and its subsequent changes in seawater carbonate chemistry are threatening the survival of calcifying organisms.Due to their use of calcium carbonate to build their shells, marine molluscs are particularly vulnerable. This study investigated the effect of CO2-induced OA on adult European abalone (Haliotis tuberculata) using a multi-parameter approach. Biological (survival, growth), physiological (pHT of haemolymph, phagocytosis, metabolism, gene expression), and structural responses (shell strength, nano-indentation measurements,Scanning electron microscopy imaging of microstructure) were evaluated throughout a 5-month exposure to ambient (8.0) and low (7.7) pH conditions. During the first 2 months, the haemolymph pH was reduced, indicating that abalone do not compensate for the pH decrease of their internal fluid. Overall metabolism and immune status were not affected, suggesting that abalone maintain their vital functions when facing OA. However, after 4 months of exposure, adverse effects on shell growth, calcification, microstructure, and resistance were highlighted, whereas the haemolymph pH was compensated. Significant reduction in shell mechanical properties was revealed at pH 7.7, suggesting that OA altered the biomineral architecture leading to a more fragile shell. It is concluded that under lower pH, abalone metabolism is maintained at a cost to growth and shell integrity. This may impact both abalone ecology and aquaculture.},
	keywords = {Abalone, calcification, Gene Expression, Growth, mechanical properties, Ocean acidification, Physiology, shell microstructure},
	issn = {1054-3139},
	doi = {10.1093/icesjms/fsz257},
	url = {https://academic.oup.com/icesjms/article/77/2/757/5699268},
	author = {Avignon, Sol{\`e}ne and St{\'e}phanie Auzoux-Bordenave and Martin, Sophie and Dubois, Philippe and Badou, Aicha and Coheleach, Manon and Richard, Nicolas and Di Giglio, Sarah and Malet, Lo{\"\i}c and Servili, Arianna and Gaillard, Fanny and Huchette, Sylvain and Roussel, Sabine}
}
@article {Lema2019731,
	title = {Inter- and Intra-Specific Transcriptional and Phenotypic Responses of Pseudo-nitzschia under Different Nutrient Conditions},
	journal = {Genome Biology and Evolution},
	volume = {11},
	number = {3},
	year = {2019},
	note = {cited By 1},
	pages = {731-747},
	publisher = {Oxford University Press},
	abstract = {Untangling thefunctionalbasis of divergencebetweenclosely relatedspecies is a steptowardunderstanding speciesdynamicswithin communities at both the evolutionary and ecological scales. We investigated cellular (i.e., growth, domoic acid production, and nutrient consumption) and molecular (transcriptomic analyses) responses to varying nutrient concentrations across several strains belonging to three species of the toxic diatomgenus Pseudo-nitzschia. Threemain resultswere obtained. First, strains fromthe same species displayed similar transcriptomic, but not necessarily cellular, responses to the experimental conditions. It showed the importance of considering intraspecific diversity to investigate functional divergence between species. Second, a major exception to the first findingwas a strain recently isolated fromthe natural environment and displaying contrasting gene expression patterns related to cell motility and domoic acid production. This result illustrated the profound modifications thatmay occurwhen transferring a cell fromthe natural to the in vitro environment and asks for future studies to better understand the influence of culture duration and life cycleon expression patterns. Third, transcriptomic responsesweremore similarbetween the two speciesdisplaying similar ecology in situ, irrespective of the genetic distance. This was especially true formolecular responses related to TCA cycle, photosynthesis, and nitrogen metabolism. However, transcripts related to phosphate uptake were variable between species. It highlighted the importance of considering both overall genetic distance and ecological divergence to explain functional divergence between species. {\textcopyright} The Author(s) 2019. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution.},
	keywords = {analogs and derivatives, Biological Evolution, comparative study, Diatom, Diatoms, Domoic acid, evolution, kainic acid, Metabolism, Multigene Family, Nutrients, Phenotype, Physiology},
	issn = {17596653},
	doi = {10.1093/gbe/evz030},
	url = {https://academic.oup.com/gbe/article/11/3/731/5332980},
	author = {Lema, Kimberley A. and Metegnier, G. and Qu{\'e}r{\'e}, J. and Latimier, Marie and Agn{\`e}s Youenou and Lambert, Christophe and Juliette Fauchot and Le Gac, Mickael and Costantini, M.}
}
@article {6665,
	title = {Digestive enzyme ratios are good indicators of hatchling yolk reserve and digestive gland maturation in early life stages of cuttlefish Sepia officinalis L.: application of these new tools in ecology and aquaculture},
	journal = {Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology},
	volume = {188},
	year = {2018},
	pages = {57-76},
	abstract = {In Sepia officinalis (Linnaeus, 1758), the digestive gland matures during the first month post-hatching, while a shift from intracellular acid to extracellular alkaline digestion occurs. The purpose of this study was to investigate the possibility of using enzymatic ratios for the description of digestive system maturation in early life stages of S. officinalis. Second, it is intended to apply these new tools as eco-physiological indicators for understanding the impact of cuttlefish eggs{\textquoteright} life history from different spawning sites of the English Channel on digestive performance of juveniles. An experimental rearing was performed over 35\&nbsp;days after hatching (DAH) on juveniles from wild collected eggs in 2010 and 2011. Four digestive enzyme activities and their ratios [i.e., trypsin, cathepsin, acid (ACP), and alkaline (ALP) phosphatase, ALP/ACP, and trypsin/cathepsin] were studied along with histological features (e.g., internal yolk surface and digestive gland development). The two enzyme ratios were good indicators of digestive system maturation allowing the study of the digestive gland{\textquoteright}s development. They were highly correlated to juveniles{\textquoteright} weight increase and histological features of the gland in early DAH. These ratios described more accurately the shift occurring between the intracellular acid and the extracellular alkaline modes of digestion in S. officinalis and were more specific than separated enzyme activities. Their application as eco-physiological tools revealed that enzyme ratios reflected yolk content and digestive gland development in new hatching juveniles. Finally, ALP/ACP ratio was shown to be a powerful tool to describe growth performance of S. officinalis which is useful for aquaculture optimization. {\textcopyright} 2017, Springer-Verlag GmbH Germany.},
	keywords = {Acid Phosphatase, alkaline phosphatase, anatomy and histology, animal, Animals, Aquaculture, cathepsin, Cathepsins, cuttlefish, Gastrointestinal Tract, Physiology, Sepia, Trypsin},
	issn = {01741578},
	doi = {10.1007/s00360-017-1115-4},
	url = {https://link.springer.com/article/10.1007\%2Fs00360-017-1115-4},
	author = {Safi, Georges and Anne-Sophie Martinez and Le Pabic, Charles and Estelle Le Bihan and Jean-Paul Robin and Koueta, Noussith{\'e}}
}
@article {Thorel2017192,
	title = {Nutrient ratios influence variability in Pseudo-nitzschia species diversity and particulate domoic acid production in the Bay of Seine (France)},
	journal = {Harmful Algae},
	volume = {68},
	year = {2017},
	note = {cited By 15},
	pages = {192-205},
	publisher = {Elsevier B.V.},
	abstract = {The population dynamics of different Pseudo-nitzschia species, along with particulate domoic acid (pDA) concentrations, were studied from May 2012 to December 2013 in the Bay of Seine (English Channel, Normandy). While Pseudo-nitzschia spp. blooms occurred during the two years of study, Pseudo-nitzschia species diversity and particulate domoic acid concentrations varied greatly. In 2012, three different species were identified during the spring bloom (P. australis, P. pungens and P. fraudulenta) with high pDA concentrations (\~{}1400 ng l-1) resulting in shellfish harvesting closures. In contrast, the 2013 spring was characterised by a P. delicatissima bloom without any toxic event. Above all, the results show that high pDA concentrations coincided with the presence of P. australis and with potential silicate limitation (Si:N \&lt; 1), while nitrate concentrations were still replete. The contrasting environmental conditions between 2012 and 2013 highlight different environmental controls that might favour the development of either P. delicatissima or P. australis. This study points to the key role of Pseudo-nitzschia diversity and cellular toxicity in the control of particulate domoic acid variations and highlights the fact that diversity and toxicity are influenced by nutrients, especially nutrient ratios. {\textcopyright} 2017 Elsevier B.V.},
	keywords = {analogs and derivatives, analysis, Bay, Bays, Biodiversity, chemistry, Diatom, Diatoms, Domoic acid, France, Geography, kainic acid, Nitrates, nitric acid derivative, particulate matter, phosphate, Phosphates, Physiology, Phytoplankton, Principal Component Analysis, season, Seasons, species difference, Species Specificity, time factor, Time Factors},
	issn = {15689883},
	doi = {10.1016/j.hal.2017.07.005},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85028543709\&doi=10.1016\%2fj.hal.2017.07.005\&partnerID=40\&md5=def23b37b0d16a1ae7ab65a7ef2b940b},
	author = {Thorel, Maxine and Pascal Claquin and Mathilde Schapira and Romain Le Gendre and Riou, Philippe and Didier Goux and Bertrand Le Roy and Raimbault, V and Deton-Cabanillas, A.-F. and Bazin, Pauline and Kientz-Bouchart, Val{\'e}rie and Juliette Fauchot}
}
