A5020561107- Marine Bivalve and Aquaculture Studies
- Marine and coastal plant biology
- Marine Biology and Ecology Research
- Marine and fisheries research
- Aquatic Invertebrate Ecology and Behavior
- Isotope Analysis in Ecology
- Aquaculture disease management and microbiota
- Microbial Community Ecology and Physiology
- Marine Biology and Environmental Chemistry
- Coastal wetland ecosystem dynamics
- Coral and Marine Ecosystems Studies
- Aquaculture Nutrition and Growth
- Microbial infections and disease research
- Identification and Quantification in Food
- X-ray Diffraction in Crystallography
- Reproductive biology and impacts on aquatic species
- Nitric Oxide and Endothelin Effects
- Crystallization and Solubility Studies
- Marine Ecology and Invasive Species
- Genetic diversity and population structure
- Bacteriophages and microbial interactions
- Environmental DNA in Biodiversity Studies
- Marine and coastal ecosystems
- Aquatic life and conservation
- Ion channel regulation and function
Fukui Prefectural University
2022-2023
Japan Fisheries Research and Education Agency
2013-2022
Instituto de Investigacións Mariñas
2007
Hiroshima University
2002
Shell (Netherlands)
2002
National Fisheries Institute
1998
Niigata University
1991-1995
Kōchi University
1987-1989
Shin Nippon Biomedical Laboratories (Japan)
1989
Kyoto Biken Laboratories (Japan)
1989
Abstract Organic carbon (OC) stored in the sediments of seagrass meadows has been considered a globally significant OC reservoir. However, sparsity and regional bias studies on long‐term accumulation coastal have limited reliable estimation capacity as global sink. We evaluated amount rate sediment adjacent areas East Southeast Asia. In temperate sites, average concentration top 30 cm was higher (780–1080 μmol g −1 ) than without cover (52–430 ). The subtropical tropical meadow ranged from...
This is the first report to explore fine‐scale diversity, population genetic structure, and biogeography of a typical planktonic microbe in Japanese Korean coastal waters also try detect impact natural human‐assisted dispersals on structure gene flow toxic dinoflagellate species. Here we present analysis Alexandrium tamarense (Lebour) Balech populations from 10 sites along coasts. We used nine microsatellite loci, which varied widely number alleles diversity across populations. The revealed...
Abstract Population outbreaks of the coral‐eating starfish, Acanthaster planci , are hypothesized to spread many localities in Indo‐Pacific Ocean through dispersal planktonic larvae. To elucidate gene flow A. across relation ocean currents and test larval hypothesis, genetic structure among 23 samples over was analysed using seven highly polymorphic microsatellite loci. The F ‐statistics admixture analysis detected genetically distinct groups accordance with current systems, that is,...
Abstract To elucidate the factors determining organic carbon (OC) sequestration capacity of seagrass meadows, distribution OC and fraction seagrass‐derived in sediments temperate cosmopolitan Zostera marina meadows surrounding habitats were investigated relation to physical properties sedimentary materials. On average, meadow showed levels twofold higher than other shallow nearshore habitats. However, offshore often greater concentrations average sediments. According estimations sources...
An infection of Perkinsus (Protozoa : Apicomplexa) was found in the short-necked clam Kumamoto and Hiroshima prefectures, first record Japan. Histology revealed a number trophozoites with vacuole, forming cyst-like structures, connective tissues gill, heart, mantle, digestive gland adductor muscle infected clam. The protozoan gill enlarged by culture Ray's fluid thioglycolate medium colored Lugol's iodine solution. nucleotide sequences two internal transcribed spacers 5.8 SrRNA region were...
To elucidate the involvement of K+ channels in smooth muscle relaxation by glyceryl trinitrate (GTN) and sodium nitroprusside (SNP), effects several channel antagonists on relaxant responses to GTN, SNP 8-bromoguanosine 3',5'-cyclic monophosphate (8-Br-cGMP) were studied bovine tracheal muscle. Although an antagonist large conductance Ca(++)-activated channel, charybdotoxin, produced no definite effect induced atriopeptin rabbit aortic ring preparation, this inhibited SNP, 8-Br-cGMP...
Abstract The sequestration of atmospheric CO 2 in seagrass meadows as organic carbon (OC) has been attracting more attention a means for climate change mitigation and adaptation. A direct method to detect DNA coastal sediments, which is essential unravel long‐term seagrass‐derived OC accumulation, was developed based on environmental (eDNA) detection techniques. Quantitative real‐time polymerase chain reaction (qPCR) droplet digital PCR (ddPCR) were applied quantify Zostera marina using...
Abstract Outbreaks of paralytic shellfish poisoning caused by the toxic dinoflagellate Alexandrium tamarense (Dinophyceae) are currently a serious problem from an economic and food hygiene point view throughout world. We isolated 13 polymorphic microsatellite loci this species. These provided markers with high polymorphism ranging four to 15 alleles per locus gene diversity between 0.632 0.974. The available for more detailed investigations genetic structure flow A. populations.
Abstract Background The crown-of-thorns starfish, Acanthaster planci (L.), has been blamed for coral mortality in a large number of reef systems situated the Indo-Pacific region. Because its high fecundity and long duration pelagic larval stage, mechanism outbreaks may be related to meta-population dynamics, which should examined by sampling population genetic analysis. However, A. larvae have undistinguished morphological features compared with other asteroid larvae, hence it difficult...
Red sea bream, Pagrus major, were injected intramuscularly once with Edwardsiella tarda crude lipopolysaccharide (LPS) and formalin killed cells (FKC) preparations. The immune response of red bream was studied 1, 2, 3 4 weeks after the immunization. protein, albumin glucose serum, agglutination antibody titer, passive hemagglutination complement-like factor activity, bacteriolytic activity serum skin mucus in vitro phagocytic index total blood immunized fish determined.The results analysis...
Bivalves are regulators of coastal lagoons and provide a wide range ecosystem services. However, sensitive to climate change. Our objective was describe the drivers cascade ecological events that occurred during summer heatwave which resulted in recruitment failure Pacific oyster Crassostrea gigas . Results show elevated temperatures salinity caused shift planktonic food availability toward smaller taxa. These trophic changes did not affect accumulation by larvae or their fatty acid...
DNA barcoding is an effective method of accurately identifying morphologically similar oyster species. However, for some Japan's Ostrea species there are no molecular data in the international databases. We sequenced mitochondrial large subunit ribosomal (LSrDNA) and cytochrome c oxidase I (COI) gene five known two unidentified Phylogenetic comparison with permitted accurate identification by barcoding. The data, which were deposited database, allowed a clear distinction among native Japan....
Abstract We isolated nine polymorphic microsatellites from the Manila clam Ruditapes philippinarum . These loci provide one class of highly variable genetic marker as number alleles ranged six to 22, and observed expected heterozygosity 0.136 0.909 0.553 0.954, respectively. consider that these are potentially useful for detailing structure gene flow among R. populations.
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 602:135-153 (2018) - DOI: https://doi.org/10.3354/meps12666 Trophic environments influence size at metamorphosis and recruitment performance of Pacific oysters Franck Lagarde1,2,*, Marion Richard1, Béatrice Bec3, Cécile Roques3, Serge Mortreux1, Ismaël Bernard4, Claude Chiantella1, Gregory Messiaen1,...
Recruitment is a central question in both ecology and fisheries biology. Little known however about early life history stages, such as the larval newly settled stages of marine invertebrates. No one has captured wild or red abalone (Haliotis rufescens) California even though this species supports recreational fishery. A sampling program been developed to capture (290 µm), (290–2,000 juvenile (2–20 mm) northern from 2007 2015. Plankton nets were used using depth integrated tows nearshore...
The sequestration and storage of carbon dioxide by marine macrophytes is called blue carbon; this ecosystem function coastal ecosystems constitutes an important countermeasure to global climate change. contribution requires a detailed examination the organic stock released these macrophytes. Here, we introduce quantitative real-time polymerase chain reaction (qPCR)-based environmental DNA (eDNA) system for species-specific detection report its application in field survey Hiroshima Bay,...