Researchers and students at Akkeshi Marine Station are currently engaged in various marine ecology and biological oceanography studies. Their research focuses on population and community ecology of coastal ecosystems, such as seagrass beds, rocky intertidal shores, tidal flats, and kelp forests. They also investigate phytoplankton photophysiology. Additionally, they conduct broader-scale ecosystem studies, including terrestrial and marine interactions, employing diverse approaches like biogeochemical analyses, satellite remote sensing, and biologging/acoustic telemetry. The target marine organisms encompass a wide range, including marine mammals like harbor seals, birds like whooper swans, numerous species of fish, crustaceans, mollusks, and other invertebrate animals, seagrasses, seaweeds, diatoms, dinoflagellates, other phytoplankton functional groups, bacterial community, etc.
Please refer to the study titles of AMS graduates below.
FY 2 0 2 4
Master thesis
- Author: Yuri Ito
Title: Microplastics trapping by eelgrass beds and its effects on ingestion by marine invertebrates
- Author: Wakako Bun-ya
Title: Bacterial taxa associated with fluorescent dissolved organic matter in the shallow coastal region
FY 2 0 2 3
Master thesis
- Author: Willy Angraini
Title: Effect of Sea Surface Warming on phytoplankton size classes (PSCs) and Primary Production in the Coastal Oyashio Region, Northwest Pacific
Graduation research
- Author: Nona Kudo
Title: Seasonal variation in microalgae photosynthetic characteristics and transparent exopolymer particles (TEPs) in eelgrass beds and their controlling factors
- Author: Kyoko Tsugane
Title: The influence of artificial light at night (ALAN) on marine sessile community
- Author: Hikari Hagiwara
Title: Community structure of subtidal macroalgae and estimation of their distribution in Akkeshi Bay
FY 2 0 2 2
Master thesis
- Author: Seishiro Koda
Title: Effects of grazing and disturbance by waterfowl on seagrass biomass and its temporal change
- Author: Takahiro Saito
Title: Seasonal variation in predation intensity on mesograzers in an eelgrass bed
- Author: Tomonori Sekioka
Title: Community structure of benthic amphipods in subtidal bottom of Akkeshi Bay and Akkeshi-ko estuary, northeastern Japan
Graduation research
- Author: Itsuki Ariizumi
Title: Effect of artificial light at night on the biorhythm and adhesive ability of a mussel Mytilus trossulus
- Author: Kanako Iguchi
Title: Creating a reference database for eDNA decapod research in Akkeshi Bay
- Author: Yuki Kawashima
Title: Evaluating the production of transparent exopolymer particles (TEP) as a blue carbon pathway in the subarctic eelgrass meadow (Zostera Marina)
- Author: Wakako Bun-ya
Title: Assessing the distribution and source of colored and fluorescent dissolved organic matter in wetland-estuary-shallow coastal waters continuum
FY 2 0 2 1
Doctoral dissertation
- Author: Minako Abe ItoHUSCAP
Title: Variation in phenology, biological traits, and associated epifaunal community between native and non-native populations of the seagrass Zostera japonica
Master thesis
- Author: Uki Kawata
Title: Dynamics of summer phytoplankton bloom in Akkeshi Bay: responses of phytoplankton assemblages to nutrient availability
- Author: Satoru Tahara
Title: Analysis of Spatio-temporal Dynamics of Seagrass Beds Using UAVs
Graduation research
- Author: Yuri Ito
Title: Evaluation of trapping effects of microplastics in seagrass beds
- Author: Chikako Iio
Title: The influence of light pollution on the sea urchin Strongylocentrotus intermedius
FY 2 0 2 0
Doctoral dissertation
- Author: Mizoho NambaHUSCAP
Title: The Effect of Salinity Gradient on Ecosystem Functions and Biodiversity of Eelgrass Bed Communities
Master thesis
- Author: Takaaki Hasegawa
Title: Trophic transfer of microplastics and associated chemical additives from crustacean prey to fish
FY 2 0 1 9
Doctoral dissertation
- Author: Kenji SudoHUSCAP
Title: Evaluation and prediction of marine biodiversity changes using species distribution models
Graduation research
- Author: Uki Kawata
Title: Are microplastic particles a new stressor for marine benthic animals? Comparing the effects of microplastic and natural seston on Mytilus trossulus
- Author: Satoru Tahara
Title: Application of deep learning for mapping seagrass beds: is it possible to classify seagrass species from drone images?
FY 2 0 1 8
Master thesis
- Author: Mone Ota
Title: Interactive effects of microplastics and ocean warming on the marine bivalve Mytilus trossulus
FY 2 0 1 7
Doctoral dissertation
- Author: Kyosuke Momota HUSCAP
Title: Bottom-up control on mobile invertebrate community in an eelgrass bed: Contribution of different functional groups of epibiotic organisms
Master thesis
- Author: Mizoho Namba
Title: Spatial variation in primary producers and epifaunal community of eelgrass (Zostera marina) in Eastern Hokkaido
- Author: Haruka Yamaguchi
Title: Effects of ocean warming on plant-plant and plant-animal interactions in surfgrass bed
Graduation research
- Author: Takaaki Hasegawa (a member of GAME2017)
Title: The impact of warming on consumption rate of marine grazers
- Author: Ryo Futamura
Title: Predicting the distribution of bivalves in the Northern Bering and Chukchi Seas using species distribution model
FY 2 0 1 6
Master thesis
- Author: Takuya Teranishi
Title: The effect of vertical and horizontal microhabitat structure on predation pressure for small crustaceans in eelgrass bed
Graduation research
- Author: Mone Ota (a member of GAME2016)
Title: Temperature-dependency in the effect of Microplastic pollution on marine benthic filter feeters
FY 2 0 1 5
Doctoral dissertation
- Author: Venus Empron Leopardas HUSCAP
Title: Variation in community structure of seagrass macrofauna across multiple spatial scales
Master thesis
- Author: Minako Ito
Effects of ocean acidification on calcareous sessile polychaetes (Neodexiospira brasiliensis and Circeis spirillum) in seagrass bed
- Author: Mao Kusuzaki
Title: Combined effects of seawater warming and ocean acidification on epiphytic snail Lacuna decorata in eelgrass bed
- Author: Hiromi Sugai (a member of GAME2014)
Title: Effects of microplastics on the lugworm Abarenicola pacifica
Graduation research
- Author: Haruka Yamaguchi (a memner of GAME2015)
Title: Heat stress tolerance of the sea anemones Diadumene lineata and Metridium senile
FY 2 0 1 4
Doctoral dissertation
- Author: Masaaki Sato HUSCAP
Title: Larval dispersal patterns and their effects on population structures of two anemonefishes (Amphiprion frenatus and Amphiprion perideraion) in the Philippines
Graduation research
- Author: Miho Ito
Title: Spatical variation of phytoplankton and ocean enviroment in Hamanaka and Biwase Bays: Evaluating effects of Kiritappu Wetland
- Author: Takuya Teranishi
Title: The effect of seagrass morphological structure on predation rate of epifauna
FY 2 0 1 3
Graduation research
- Author: Minako Ito
Title: Effects of CO2 enrichment on Spirorbib polychete Neodexiospira brasiliensis
