A5066210204- Isotope Analysis in Ecology
- Marine Biology and Ecology Research
- Marine Bivalve and Aquaculture Studies
- Marine and fisheries research
- Marine and coastal ecosystems
- Parasite Biology and Host Interactions
- Geology and Paleoclimatology Research
- Marine and environmental studies
- Mercury impact and mitigation studies
- Aquatic Invertebrate Ecology and Behavior
- Marine and coastal plant biology
- Environmental DNA in Biodiversity Studies
- Mollusks and Parasites Studies
- Microbial Community Ecology and Physiology
- Fish Ecology and Management Studies
- Radioactive contamination and transfer
- Coastal wetland ecosystem dynamics
- Earthquake and Disaster Impact Studies
- Coastal and Marine Management
- Animal Ecology and Behavior Studies
- Genetic diversity and population structure
- Groundwater and Isotope Geochemistry
- Invertebrate Taxonomy and Ecology
- Methane Hydrates and Related Phenomena
- Forensic and Genetic Research
National Institute for Environmental Studies
2015-2024
Tohoku University
2007-2023
Toho University
2019
Kōchi University
2019
Nihon University
2019
The University of Tokyo
2019
Cambridge University Press
2018
University of Cambridge
2018
Carl von Ossietzky Universität Oldenburg
2010
The massive geographic expansion of terrestrial plant crops, livestock, and marine aquacultured species during the 19th 20th centuries provided local economic benefits, stabilized food demands, altered ecosystems. invasion history these translocations remains uncertain for most species, limiting our understanding their future adaptive potential historical roles as vectors coinvaded species. We provide a framework filling this gap in biology using widely transplanted Pacific oyster case...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 345:117-127 (2007) - DOI: https://doi.org/10.3354/meps07025 Spatial dietary shift of macrozoobenthos in a brackish lagoon revealed by carbon and nitrogen stable isotope ratios Gen Kanaya1,*, Shigeto Takagi1, Ei Nobata2, Eisuke Kikuchi1 1The Center for Northeast Asian Studies, Tohoku University, Sendai...
A huge tsunami is one of the greatest disturbance events in coastal benthic communities, although ecological consequences are not fully understood. Here we examined tsunami-induced changes sediment environment and macrozoobenthic assemblage a eutrophic brackish lagoon eastern Japan. The 7.2-m-high completely replaced muddy with drifting sea sand throughout lagoon, leading to drastic quantity quality sedimental organic matters, sulfide contents, redox condition. Intensive physical stress...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 299:67-78 (2005) - doi:10.3354/meps299067 Effects of different feeding habits three bivalve species on sediment characteristics and benthic diatom abundance Gen Kanaya1,*, Ei Nobata2, Terumasa Toya2, Eisuke Kikuchi1 1Center for Northeast Asian Studies, Tohoku University, Kawauchi, Aoba-ku, Sendai 980-8576,...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 359:133-144 (2008) - DOI: https://doi.org/10.3354/meps07356 Spatial dietary variations in Laternula marilina (Bivalva) and Hediste spp. (Polychaeta) along environmental gradients two brackish lagoons Gen Kanaya*, Shigeto Takagi, Eisuke Kikuchi The Center for Northeast Asian Studies, Tohoku University,...
Gamo Lagoon (Sendai, Miyagi Prefecture, Japan), a shallow brackish lagoon, was struck by 7.2-m-high tsunami on 11 March 2011. In order to assess the tsunami-induced changes in ecosystem of Lagoon, we examined topography and distribution plants macrobenthos between April August, 2011, compared them with available pre-tsunami data. The submerged area decreased from 17.3 11.8 ha, sand dune vegetation 8.6 0.1 pine forest 4.2 2.0 macroalgal patches 7.8 1.8 ha. Conversely, bare intertidal flats...
Abstract Natural disturbances often destroy local populations and can considerably affect the genetic properties of these populations. The 2011 Tohoku Earthquake Tsunami greatly damaged various coastal organisms, including mud snail Batillaria attramentaria , which was an abundant macroinvertebrate on tidal flats in region. To evaluate impact tsunami ecology population snails, we monitored density, shell size, microsatellite DNA variation B. for more than ten years (2005–2015) throughout...
Although omnivorous cyprinid fish often dominate communities in shallow eutrophic lakes, their role the food web is poorly known. In present study, carbon sources of six species were examined a littoral freshwater habitat saline lake complex (Lake Chany, western Siberia, Russia) using stable isotope analyses (SIA). this habitat, microalgae (phytoplankton and epiphytes), macrophytes riparian vegetation comprised major producer groups with distinctive δ13C values. Zooplankton most benthic...
Freshwater mussels have often been used as indicators of a trophic baseline (i.e., primary consumers) in the food web. To assess utility large filter-feeding mussel, Cristaria plicata, an isotopic indicator, we compared carbon (delta C-13) and nitrogen N-15) stable isotope ratios mussel with those its potential sources, particulate organic matter (POM) sediment (SOM). The delta C-13 values (shell length > 140 mm, -31 parts per thousand to -29.2 thousand) were similar POM (-30.2 rather than...
We investigated the relationship between digestive function and ecological distribution for four related species of Gastropoda (Cerithidea rhizophorarum, Cerithidea cingulata, Batillaria multiformis, attramentaria) inhabiting Tanaka River estuary (Mie Prefecture, Japan). compared enzyme activities hard degradable carbohydrates, namely, cellulose, mannan, xylan, laminarin. Among species, rhizophorarum showed highest cellulase, mannanase, xylanase, laminarinase activities, was also dominantly...