Akkeshi-ko estuary and Akkeshi Bay - Japan

Basic Information
Site Name
Akkeshi-ko estuary and Akkeshi Bay
Short name
Akkeshi
Country
Japan
Web Address
Akkeshi Marine Station, Hokkaido University
Site Manager
Masahiro Nakaoka
Site Description
Akkeshi JaLTER site locate along the Pacific coast of Eastern Hokkaido. It consists of various habitats such as Bekanbeushi river system, Akkeshi-ko estuary and Akkeshi Bay, which formed an ecotone connecting freshwater, brackish water and marine environment.
Last modified
2020-06-29 10:06:52

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General Characteristics and Status
Site Status
Operational
Year Established
2006
Observed properties
atmospheric parameter
precipitation intensity
snow depth
plant carbon concentration
biological parameter
plant height
plant nutrient
root density
leaf area
nitrogen content
plant development stage
plant cover
plant nitrogen concentration
leaf area ratio
below ground autotrophic respiration
ammonium content
ammonium nitrogen content
ammonium nitrate concentration
dissolved nutrient
percent organic carbon
total carbon
total organic carbon
percent carbon
water salinity
suspended solids
ecosystem parameter
above ground net primary production
ecosystem structure
habitat structure
inorganic nutrient content
community composition
species composition
species richness
species abundance
benthic invertebrates abundance
macrofauna abundance
soil macrofauna abundance
species presence
benthic invertebrates presence
species turnover
diversity index
annelida presence
abiotic heterogeneity
water parameter
water depth
runoff amount
water transparency
water quality
water temperature
Photos
not defined

not defined

Geographic
Size
13400.00ha
Elevation (average)
0.00msl
Elevation (min)
0.00msl
Elevation (max)
0.00msl
Affiliation and Network Specific Information
Affiliation
ILTER✔This site is a verified "ILTER" member.
JaLTER (Japan)✔ (LTER-EAP-JP-17)This site is a verified "JaLTER (Japan)" member.
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Site information [.json]

Centroid coordinates [.shp] [.kml]
Bounding Box [.shp] [.kml]
Boundaries [.shp] [.kml]
GEO-BON Biome
Marine
Coastal
Biome
Coastal
Ecosystem and Land Use
Coastal
Marine
EUNIS habitat
Coastal habitats (B)
Marine habitats (A)
Air Temperature: Average Annual
8.40°C
Air Temperature Range (Monthly Minimum)
-3.50°C
Air Temperature Range (Monthly Maximum)
19.80°C
Precipitation Annual
1170.00mm
Site Type
Stationary terrestrial site
Design of Experimentation
mainly experimentation
Scale of Experimentation
plot scale
Design of Observation
mainly observation
Scale of Observation
beyond catchment
Permanent Power Supply
Yes
Equipment
Data infrastructure » Data services » Data portal
Data infrastructure » Data storage » Spatial data file (GIS)
Data infrastructure » Data storage » Unstructured file
Observation device » Marine Platform
Supporting infrastructure » Staff room at site » 1 place
Supporting infrastructure » Lodging at site » > 10 beds
Supporting infrastructure » Transportation » Vehicle 4WD
Supporting infrastructure » Transportation » Boat
Accessible All Year
Yes
All parts of Site Accessible
No
Access Type
boat
Permanent Operation
Yes
General Data Policy
The opportunity to collaborate on the project using the dataset
LTER Site Classification
Regular