The Semidi Islands Marine IBA occupies 223,602 acres of pelagic open water habitat. The IBA is located in the Alaska Peninsula Coastal and Shelf ecoregion within the Gulf of Alaska. The centroid of this IBA is 2.1 km from the nearest land.

It Semidi Islands Marine IBA is owned and managed as: fws - national wildlife refuge, federal-other, and state-other, and has the following primary uses: fisheries/aquaculture-other, wilderness, refuge-wildlife management, and birdwatching.

The Semidi Islands Marine is an IBA for the following species: Horned Puffin. It contains an estimated 16,845 Horned Puffin (breeding).

Ornithological Summary

Semidi Islands Marine is an IBA for the following species: Horned Puffin. It contains an estimated 16,845 Horned Puffin (breeding). These estimates are based on the analysis of 37 non-breeding surveys and 720 breeding surveys. These surveys were conducted between July 16, 1975 and September 14, 2009.

Ownership

The Semidi Islands Marine IBA is owned and managed as: fws - national wildlife refuge, federal-other, and state-other.

Habitat

The Semidi Islands Marine IBA is characterized by the following habitat types: open water. The IBA is located in the Alaska Peninsula Coastal and Shelf ecoregion with the Gulf of Alaska. The average water depth is -112.3 m and ranges from -201.1 m to 0.0 m.

Land Use

The Semidi Islands Marine IBA is used for: fisheries/aquaculture-other, wilderness, refuge-wildlife management, and birdwatching.

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