NaGISA foreshore

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NaGISA ? (foreshore)

• The symbol of mudflats, coral reefs, and sea
  grass beds
• Coastal zones in Japan are threat caused by
  development.
• Some eelgrass species is endangered, but data
  deficient still threat by development

Zostera
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DIVERSITAS IBOY

• DIVERSITAS a program to promote and facilitate
  the international research activities on the
  analyses of biodiversity under the support of
  UNESCO, SCOPE, IUBS etc.
• IBOY an International Biodiversity Observation
  Year (2001) by DIVERSITAS
• Using the same sampling protocols,
• NaGISA Coastal scuba transects to 10m depth

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DIWPA (DIVERSITAS Western Pacific and Asia)

• An international project to understand the
  latitudinal gradient of marine and terrestrial
  biodiversity
• IBOY 2001 the launch of a three-year
  biodiversity assessment program by DIWPA.
• The outcome of DIWPA should be essential for the
  construction of OBIS (The CoML Ocean
  Biogeographic Information System).

Shirayama Symposium IB03
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Why be Western Pacific Asia?
Marine from the Bering Sea to the New Zealand
without any discontinuity,
Humid climate spans from Siberia to New Zealand,
supporting unusually high biodiversity and
productivity.
The area is also experiencing rapid economic
expansion and ecosystem change.
Ca.100 research sites in forest, coastal and
freshwater ecosystems across more than 20
countries and areas
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NaGISA as a Field projectsNatural Geography in
Shore Areas
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Concentration Distribution of PCB

• Data from Miyazaki, ORI, U. Tokyo

Sea Surface Water
Air
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Are Coastal Zones Stable Nursery for Pelagic
Fishes?

• Watanabe Ys project latitudinal gradient in
  life history pattern in Clupeiodae
• Herring mature at 2-3 yrs, iteroparity
• Huge fluctuation in recruitment
• Spawning area sea grass beds
• Anchovy mature at 1 yr, short longevity
• Some clupeiod matures at 1 yr, spawns in coastal
  zone and stable

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Thank you!