Search results: Found 3

Listing 1 - 3 of 3
Sort by
Hawaï

Author:
ISBN: 9782753532571 9782753536845 Year: Language: French
Publisher: Presses universitaires de Rennes
Added to DOAB on : 2017-03-22 17:18:59
License: OpenEdition licence for Books

Loading...
Export citation

Choose an application

Abstract

« Hawaï » est un nom de lieu qui résonne dans l'imaginaire collectif, jusqu'à être incorporé dans notre carte mentale du monde. Ce toponyme suscite des images qui renvoient à la figure de l'île tropicale, « lieu de bonne qualité » (un des sens de l'utopie) capable d'éveiller le désir touristique. Mais sous l'apparente évidence se trame un imaginaire géographique qui a été construit. L'objet « île tropicale » ne constitue pas une réalité homogène et Hawaï incarne une « apogée touristique », u...

Surf Atlantique : Les territoires de l’éphémère

Author:
ISBN: 9782858925735 DOI: 10.4000/books.msha.16014 Language: French
Publisher: Maison des Sciences de l’Homme d’Aquitaine
Subject: Sports Science
Added to DOAB on : 2019-12-06 13:15:39
License: OpenEdition Licence for Books

Loading...
Export citation

Choose an application

Abstract

Le surf, comme toute pratique humaine, est révélateur de sens et de signification, et la construction autour de la vague porteuse d'un dispositif scénique qui se réalise sous nos yeux donne à réfléchir à trois tendances majeures de cette fin de siècle : la première est celle de l'individuation qui se distingue de l'individualisme qui est repli sur soi ; la deuxième est liée à l'émergence de nouvelles territorialités ; la troisième est inhérente aux discours énonciateurs qui sont repris par les média, les pouvoirs et les agents économiques. Bordeaux et l'Aquitaine sont des lieux où s'élabore en France une socio-géographie des sports à partir d'analyses valorisant la dimension sociale des faits spaciaux. Des études sur les sports collectifs et notamment le rugby ont déjà permis de définir un processus emblématique d'identification communautaire fondé sur le club, le stade et la communauté locale. Ici, en déplaçant l'analyse sur des pratiques individuelles, nous mettons en lumière un processus symbolique d'individuation territoriale fondé sur la diversité des modalités de pratiques et les agrégations sociales éphémères.

Dinophysis Toxins: Distribution, Fate in Shellfish and Impacts

Authors: ---
ISBN: 9783039213634 / 9783039213641 Year: Pages: 376 DOI: 10.3390/books978-3-03921-364-1 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General) --- Public Health
Added to DOAB on : 2019-12-09 11:49:15
License:

Loading...
Export citation

Choose an application

Abstract

Several species of Dinophysis produce one or two groups of lipophilic toxins: okadaic acid (OA) and its derivatives; or the dinophysistoxins (DTXs) (also known as diarrhetic shellfish poisons or DSP toxins) and pectenotoxins (PTXs). DSP toxins are potent inhibitors of protein phosphatases, causing gastrointestinal intoxication in consumers of contaminated seafood. Forty years after the identification of Dinophysis as the causative agent of DSP in Japan, contamination of filter feeding shellfish exposed to Dinophysis blooms is recognized as a problem worldwide. DSP events affect public health and cause considerable losses to the shellfish industry. Costly monitoring programs are implemented in regions with relevant shellfish production to prevent these socioeconomic impacts. Harvest closures are enforced whenever toxin levels exceed regulatory limits (RLs). Dinophysis species are kleptoplastidic dinoflagellates; they feed on ciliates (Mesodinium genus) that have previously acquired plastids from cryptophycean (genera Teleaulax, Plagioselmis, and Geminigera) nanoflagellates. The interactions of Dinophysis with different prey regulate their growth and toxin production. When Dinophysis cells are ingested by shellfish, their toxins are partially biotransformed and bioaccumulated, rendering the shellfish unsuitable for human consumption. DSP toxins may also affect shellfish metabolism. This book covers diverse aspects of the abovementioned topics—from the laboratory culture of Dinophysis and the kinetics of uptake, transformation, and depuration of DSP toxins in shellfish to Dinophysis population dynamics, the monitoring and regulation of DSP toxins, and their impact on the shellfish industry in some of the aquaculture regions that are traditionally most affected, namely, northeastern Japan, western Europe, southern Chile, and New Zealand.

Keywords

harmful algal bloom --- Diarrheic Shellfish Poisoning --- okadaic acid --- toxin accumulation --- toxin vectors --- trophic transfer --- Brazil --- diarrhetic shellfish toxins (DST) --- Mytilus galloprovincialis --- DST accumulation --- DST esterification --- suspended particulate matter (SPM) --- harmful algal blooms --- okadaic acid --- Argopecten irradians --- transcriptomic response --- deep sequencing --- pectenotoxins --- surf clam --- accumulation --- biotransformation --- depuration --- diarrhetic shellfish toxins --- accumulation --- dinophysistoxin --- Japanese scallop --- dinophysis --- LC/MS/MS --- statistical analysis --- Dinophysis --- HAB monitoring --- DSP toxins --- aquaculture --- shellfish toxicity --- human health --- time-series --- seasonality --- Scotland --- DSP toxins --- bivalves --- mussel --- resistance --- RNA-Seq --- qPCR --- metabolism --- defense --- immunity --- DSP toxins --- pectenotoxins --- Dinophysis acuminata --- Mesodinium rubrum --- bacterial community --- high throughput sequencing --- diarrhetic shellfish toxins --- Dinophysis --- wild harvest --- bivalve shellfish --- pipis (Plebidonax deltoides) --- Sydney rock oyster (Saccostrea glomerata) --- okadaic acid --- pectenotoxins --- Dinophysis toxins --- accumulation --- digestion --- biotransformation --- compartmentalization --- depuration --- kinetics --- Dinophysis --- diarrhetic shellfish poisoning --- marine toxins --- pectenotoxin --- okadaic acid --- dinophysistoxin --- okadaic acid --- pectenotoxins --- Dinophysis --- D. acuminata-complex --- D. caudata --- Argopecten purpuratus --- Dinophysis --- Mesodinium --- cryptophytes --- predator-prey preferences --- Diarrhetic Shellfish Toxins (DST) --- pectenotoxins (PTXs) --- mixotrophic cultures --- mass culture conditions --- Dinophysis acuminata --- Protoceratium reticulatum --- Reloncaví Fjord --- OMI analysis --- WitOMI analysis --- Mesodinium cf. rubrum --- El Niño Southern Oscillation --- Southern Annual Mode --- Dinophysis acuta --- Dinophysis acuminata --- DSP --- physical–biological interactions --- niche partitioning --- climatic anomaly --- Dinophysis acuminata --- Mesodinium rubrum --- lysate --- organic matter --- diarrhetic shellfish poisoning --- okadaic acid --- dinophysistoxin --- pectenotoxins --- dinophysis --- DSP --- toxins --- OA --- DTX-2 --- PTXs --- Dinophysis acuminata --- dinophysistoxins --- pectenotoxins --- Port Underwood --- New Zealand --- Dinophysis --- Diarrhetic shellfish toxins --- marine biotoxins --- blooms --- n/a

Listing 1 - 3 of 3
Sort by