Kuluk Bay
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| Kuluk Bay | |
|---|---|
| Khulukh Bay | |
Kuluk Bay from the north | |
| Location | Adak Island, Aleutians West Census Area, Alaska[1] |
| Coordinates | 51°52′30″N 176°33′47″W / 51.87500°N 176.56306°W |
| Type | Bay |
| Sections/sub-basins | Sweeper Cove[2] |
| Settlements | Adak |
Kuluk Bay also known as Khulukh Bay[1] is a small bay located at 51°52′30″N 176°33′47″W / 51.87500°N 176.56306°W on the northeastern side of Adak Island, one of the larger Andreanof Islands of the Aleutian Islands.[1][3] The bay is significant for its ecology, role in the Second World War, and various examples of contemporary military and administrative action regarding the bay. Kuluk Bay borders the most developed portion of Adak Island; on its western coast lie the industrial and residential areas of the settlement of Adak.[4] Kuluk Bay is also important for recreation on Adak Island, since beach combing and other beach activities are common on its sandy western shore.[4]
Adak's coastline is characterized by steep downward slopes which continue well offshore; leading to extreme depth increase in Sweeper Cove and Kuluk Bay with distance from the shoreline. In Adak, ground water is not typically used as a source of drinking water. Among other reasons, ground water may not be used because it is believed that Adak island's fresh ground water overlies saltwater which enters the aquifer from the adjacent depths of Kuluk Bay and Sweeper Cove.[2]
Fishing, for a variety of species, is another common activity in Kuluk Bay. During August and September, pink salmon runs occur in streams flowing into the bay.[4] The bay also contains extensive mussel beds along the coast at low tide, although these do not appear to have been tremendously exploited as a food source.[4]
Tests on blue mussels from Kuluk Bay have found a significant amount of arsenic contamination, and rock soles in the bay have been found to contain hazardous amounts of PCBs (particularly Aroclor 1254). Subsistence fishermen and others have therefore been advised to restrict their consumption of them.[4]
Emperor goose migration

Perhaps most environmentally significant is Kuluk Bay's role in emperor goose migration. Emperor geese inhabit many of the Aleutian Islands and congregate in numbers as large as 1,000 at Kuluk Bay during the winter.[3] This congregation is especially interesting because emperor geese are typically grouped sparsely and in small numbers during the winter; large gatherings are uncommon.[3] During the winter, Kuluk bay is an important migratory area and serves as a wintering habitat for as much as 1% of the entire emperor goose population.[3]
Sea otter population
Between 1993 and 1997, the populations of sea otters at Clam lagoon and Kuluk bay at Adak Island were studied and compared.[5] In order for study to take place, a naval restricted area was established in the northwestern section of the bay as of April 29, 1993. This restricted area is defined in The Code of Federal Regulations Title 33-Navigation and Navigable Waters, part 334 Section 334.1320.[6]
In the study Clam lagoon is noted as being a closed aquatic environment, inaccessible to killer whales, while Kuluk bay is noted as an "open coastal environment". During the six-year interval, it was observed that while Clam Lagoon sea otter population remained relatively stable, population in Kuluk Bay decreased by a dramatic 76%. When taking into account the caloric needs of a killer whale, the study concluded that merely 5.05 attacks would have been required at minimum in order to lower the sea otter population to the documented extent. 6 attacks where observed.[5]



