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Natural reef areas close to the artificial reef site were also sampled...

Natural reef areas close to the artificial reef site were also sampled to determine the biomass and species composition of fish Photo

Benthic samples were taken to identify the species associated with the...

Benthic samples were taken to identify the species associated with the artificial reef site. Photo

Oldest known sketch of Coast Survey sounding operations

Oldest known sketch of Coast Survey sounding operations Photo

Walker Cove, Alaska

Walker Cove, Alaska Photo

Mt Photo

Underwater writing slates were used to record the different species ad...

Underwater writing slates were used to record the different species adhering to the top, side and interior roof of pipes over time. Photo

Columbia Glacier

Columbia Glacier Photo

Aerial View of Mountains in Southeast Alaska

Aerial View of Mountains in Southeast Alaska Photo

Underwater tape recorders were used to record the number and size of e...

Underwater tape recorders were used to record the number and size of each fish species on a set transect Photo

Klawak Indian Village

Klawak Indian Village Photo

Tires being placed in an array to determine their effectiveness as hab...

Tires being placed in an array to determine their effectiveness as habitat for fish. Photo

Level instrument and Wild T-2

Level instrument and Wild T-2 Photo

Wild T-2 observations at entrance to Chesapeake Bay

Wild T-2 observations at entrance to Chesapeake Bay Photo

Collecting fish by Hawaiian style spear for determining stomach conten...

Collecting fish by Hawaiian style spear for determining stomach contents. Photo

Wild T-3 observations in Alligator Harbor

Wild T-3 observations in Alligator Harbor Photo

Wild T -2 observations

Wild T -2 observations Photo

Underwater tape recorders were used to record the number and size of e...

Underwater tape recorders were used to record the number and size of each fish species on a set transect Photo

Recording angles for Station West Offset

Recording angles for Station West Offset Photo

Wild T-2 being used for positioning photogrammetry targets.

Wild T-2 being used for positioning photogrammetry targets. Photo

Navy divers assisting in the placement of used tires as an alternate r...

Navy divers assisting in the placement of used tires as an alternate reef material on the artificial reef site at Pokai Bay, Oahu Photo

Observing in Chinitna Bay area at twilight

Observing in Chinitna Bay area at twilight Photo

Observing with Wild T-2 in Chinitna Bay

Observing with Wild T-2 in Chinitna Bay Photo

Twilight observations - note signal lamp on hill to right

Twilight observations - note signal lamp on hill to right Photo

Observing with Wild T-2 near Columbia Glacier.

Observing with Wild T-2 near Columbia Glacier. Photo

Instructing Liberians in geodetic operations

Instructing Liberians in geodetic operations Photo

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