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NOAA's Coral Kingdom Collection
Catalog of Images

750 thumbnail picture
Ctenochaetus striogosus, surgeon fish, and damsel fish, Dascyllus albisella
Pokai Bay, Oahu June 1967
751 thumbnail picture
Chaetodon ornatissimus, butterfly fish, on natural reef area .
Hawaii, Natural Hawaiian reef January 1971
752 thumbnail picture
Diver laying transect line for conducting fish survey.
Pokai Bay, Oahu March 1968
753 thumbnail picture
Diver laying transect line for conducting fish survey.
Pokai Bay, Oahu March 1968
754 thumbnail picture
Installing a 1/4 square meter grid for counting invertebrate species attaching to interior, roof of pipe. This location was a distinct habitat type ideal for larval settlement of oysters, sponges, bryozoa, and tunicates.
Pokai Bay, Oahu March 1968
755 thumbnail picture
Diver laying transect line for conducting fish survey. This picture taken very soon after placement of artificial reef materials and very little growth of biota had occurred on pipes.
Pokai Bay, Oahu March 1968
756 thumbnail picture
Attaching 1/4 square meter grid to pipes by rope. The method did not work and eventually a hole was drilled in the four corners of the grid area, a stainless steel screw was attached, and nylon string was strung between the four corners.
Pokai Bay, Oahu March 1968
757 thumbnail picture
Exclusion cages were used to determine the effect of grazing on algal and invertebrate populations on the reef. The carport like extension was used to determine the effect of light reduction on pipe surfaces that were still open to grazing. Pipe surfaces in the cage had distinctly different algal and invertebrate communities than pipes open to grazing.
Pokai Bay, Oahu August 1968
758 thumbnail picture
Installing exclusion to determine the effect of grazing on algal and invertebrate populations on the reef.
Pokai Bay, Oahu September 1968
759 thumbnail picture
Moving pipe pieces into exclusion cages for grazing study.
Pokai Bay, Oahu September 1968
760 thumbnail picture
Moving pipe pieces into exclusion cages for grazing study.
Pokai Bay, Oahu September 1968
761 thumbnail picture
Small pipes were moved to the interior of larger pipes to create more complex habitats for comparative studies.
Pokai Bay, Oahu December 1968
762 thumbnail picture
Small pipes were moved to the interior of larger pipes to create more complex habitats for comparative studies.
Pokai Bay, Oahu December 1968
763 thumbnail picture
Small pipes were moved to the interior of larger pipes to create more complex habitats for comparative studies.
Pokai Bay, Oahu December 1968
764 thumbnail picture
Divers preparing for dive on the artificial reef site off the Leeward Coast of Oahu close to Pokai Bay.
Pokai Bay, Oahu December 1968
765 thumbnail picture
Collecting fish by Hawaiian style spear for determining stomach contents.
Hawaii, Pokai Bay, Oahu 21 March 1969
766 thumbnail picture
Navy divers assisting in the placement of used tires as an alternate reef material on the artificial reef site at Pokai Bay, Oahu. The tires did not stay in place because of the strong surge of the large Pacific swells at the site.
Pokai Bay, Oahu June 1969
767 thumbnail picture
Investigating some of biota on the reef took close observations in difficult circumstances.
Pokai Bay, Oahu June 1969
768 thumbnail picture
Secchi disc readings were used to determine turbidity at the reef site on a regular basis. The rope was marked at five foot intervals to determine at what distance the disc could no longer be seen on a horizontal axis.
Pokai Bay, Oahu June 1969
769 thumbnail picture
Underwater tape recorders were used to record the number and size of each fish species on a set transect. A conversion table was used to convert estimated length of fish to estimated weight.
Pokai Bay, Oahu June 1969
770 thumbnail picture
Underwater tape recorders were used to record the number and size of each fish species on a set transect. A conversion table was used to convert estimated length of fish to estimated weight.
Pokai Bay, Oahu June 1969
771 thumbnail picture
Collecting fish by Hawaiian style spear for determining stomach contents.
Pokai Bay, Oahu March 1969
772 thumbnail picture
Invertebrate samples were collected from pipe surfaces for identification.
Pokai Bay, Oahu June 1969
773 thumbnail picture
Navy divers assisting in the placement of used tires as an alternate reef material on the artificial reef site at Pokai Bay, Oahu. The tires did not stay in place because of the strong surge of the large Pacific swells at the site.
Pokai Bay, Oahu July 1969
774 thumbnail picture
Navy divers assisting in the placement of used tires as an alternate reef material on the artificial reef site at Pokai Bay, Oahu. The tires did not stay in place because of the strong surge of the large Pacific swells at the site.
Pokai Bay, Oahu July 1969
775 thumbnail picture
Tires being placed in an array to determine their effectiveness as habitat for fish.
Pokai Bay, Oahu July 1969
776 thumbnail picture
Tires being placed in an array to determine their effectiveness as habitat for fish.
Pokai Bay, Oahu July 1969
777 thumbnail picture
Tires being placed in an array to determine their effectiveness as habitat for fish.
Pokai Bay, Oahu July 1969
778 thumbnail picture
Underwater writing slates were used to record the different species adhering to the top, side and interior roof of pipes over time.
Pokai Bay, Oahu July 1969
779 thumbnail picture
Underwater tape recorders were used to record the number and size of each fish species on a set transect. A conversion table was used to convert estimated length of fish to estimated weight.
Pokai Bay, Oahu August 1969
780 thumbnail picture
Underwater tape recorders were used to record the number and size of each fish species on a set transect. A conversion table was used to convert estimated length of fish to estimated weight.
Pokai Bay, Oahu August 1969
781 thumbnail picture
Underwater writing slates were used to record the different species adhering to the top, side and interior roof of pipes over time.
Pokai Bay, Oahu August 1969
782 thumbnail picture
Underwater writing slates were used to record the different species adhering to the top, side and interior roof of pipes over time. Counting the interior surface of pipes took considerable flexibility on the part of the diver.
Pokai Bay, Oahu August 1969
783 thumbnail picture
Straightening out one of the underwater transect lines used for counting fish. All fish ten feet to each side of the line were counted.
Pokai Bay, Oahu October 1969
784 thumbnail picture
A diver equipped with underwater tape recorder, wetsuit, watch for determining dive time.
Pokai Bay, Oahu October 1969
785 thumbnail picture
Benthic samples were taken to identify the species associated with the artificial reef site.
Pokai Bay, Oahu October 1969
786 thumbnail picture
Natural reef areas close to the artificial reef site were also sampled to determine the biomass and species composition of fish. You can see the portable transect line lying along the bottom.
Pokai Bay, Oahu October 1969
787 thumbnail picture
Natural reef areas close to the artificial reef site were also sampled to determine the biomass and species composition of fish. You can see the portable transect line lying along the bottom.
Pokai Bay, Oahu October 1969
788 thumbnail picture
Small coral colonies were collected on pipe surfaces of know age to determine growth rate of corals on the artificial reef.
Pokai Bay, Oahu October 1969
789 thumbnail picture
Diver disentangling rope from regulator while getting ready to lay a transect line.
Pokai Bay, Oahu October 1969
790 thumbnail picture
Small coral colonies were collected on pipe surfaces of know age to determine growth rate of corals on the artificial reef.
Pokai Bay, Oahu October 1969
791 thumbnail picture
Ctenochaetus striogosus, surgeon fish and sea urchin, Echinothrix diadema.
Pokai Bay, Oahu August 1967
792 thumbnail picture
Sea Cucumber, Stichopus chloronotus, and Ctenochaetus striogosus, surgeon fish in typical habitat where pipe meets the bottom.
Pokai Bay, Oahu August 1967
793 thumbnail picture
A typical invertebrate grouping found on the interior roof of the pipes consisting primarily of bryozoa, tunicates and sponges over the top of oyster shells. Oysters could not survive long once the other fouling organisms covered them over.
Pokai Bay, Oahu January 1968
794 thumbnail picture
A typical school of the surgeon fish, Acanthurus olivaceus, grazing on algae during the time when filamentous algae were abundant. This period occurred soon after placement of the pipes and the red and green filamentous algae were replace with blue-green algae at a later stage.
Pokai Bay, Oahu April 1968
795 thumbnail picture
A mixed school of surgeon fish grazing on algae during the time when filamentous algae were abundant. This period occurred soon after placement of the pipes and the red and green filamentous algae were replaced with blue-green algae at a later stage.
Pokai Bay, Oahu April 1968
796 thumbnail picture
Surgeon fish, Naso unicornis, Acanthurus olivaceus, Acanthurus dussumieri, on reef during a low slightly greater turbidity episode.
Pokai Bay, Oahu April 1968
797 thumbnail picture
A mixed school of surgeon fish grazing on algae during the time when filamentous algae were abundant. This period occurred soon after placement of the pipes and the red and green filamentous algae were replaced with blue-green algae at a later stage.
Pokai Bay, Oahu April 1968
798 thumbnail picture
A typical invertebrate grouping found on the interior roof of the pipes consisting primarily of bryozoa, tunicates and sponges over the top of oyster shells. Oysters could not survive long once the other fouling organisms covered them over. You can see the tan colonies of erect bryozoa, Reteporellina sp. These colonies disappeared after strong storm surges.
Pokai Bay, Oahu May 1968
799 thumbnail picture
A typical invertebrate grouping found on the interior roof of the pipes consisting primarily of bryozoa, tunicates and sponges over the top of oyster shells. Oysters could not survive long once the other fouling organisms covered them over. You can see the tan colonies of erect bryozoa, Reteporellina sp. These colonies disappeared after strong storm surges.
Pokai Bay, Oahu May 1968

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Last Updated:
June 10, 2016