Research Photos
Training ships; Oshoro-Maru and Ushio-Maru
CTD system
You can observe temperature, salinity, dissolved oxygen, light intensity and Chl. fluorescence in every 0.1 m depth. Water in any depths can be sampled with Niskin Bottles.
Filtering System on the vessel
Seawater Sampling on the vessel
Surface Water Monitoring System on the vessel
Drone for water sampling
Seine Net
Larvae and juveniles were sampled by towing a seine net.
Fishing
Visual Observation
Backpack Electrofisher
Field work in a river
Seawater sampling from the coast
Filtering with a syringe and cartridge
Laboratory work
Filtering water
For nutrients and organic matter analysis
Grass fiber filters
Each river has different characteristics. Quality and quantity of suspended matter are different among rivers.
Real-Time PCR System
Extraction of DNA
Observed Fishes
Striped beakfish
Surfperch
Elegant blenny
Elkhorn sculpin
Gazami crab
Juveniles of Smooth lumpsucker
Brown trout
Exotic species. Disturbance by brown trout is a big issue as they feed on the larvae of salmon, which is important for Japanese fisheries.
Rainbow trout
Exotic species. Rainbow trout conflict with native species such as cherry salmon and white-spotted charr.
Cherry salmon
Japanese dace
Sculpin
Larvae and Juveniles collected in Enshu-Nada; Shinsei-Maru Cruise
Social allignment
Collaborative events with the National Museum of Emerging Science and Innovation (Miraikan)
Spreading awareness about environmental DNA to children and parents. Supported by the Nippon foundation.
Observation in Hakodate Bay
We monitor water condition (temperature, salinity, nutrients and COD) in Hakodate Bay commissioned by the watershed community.
Investigation Scenery
View from Oshoro Maru vessel
Sunset view from Oshoro Maru vessel
Mt. Hakodate covered in a fog
Lake Onuma and Mt. Komagatake
View of Funka Bay with snow
