An Environmental Survey of Canton Atoll Lagoon, 1973Naval Undersea Research and Development Center, 1976 - 192 pagine Canton Atoll has a single passage between the ocean and lagoon and has conspicuous environmental gradients from that passage to the back lagoon. These gradients include the physiography of the lagoon floor, water quality, and the diversity and abundance of corals, fishes, and mollusks. The gradients can apparently be attributed either directly or indirectly to circulation and water motion within the lagoon. Those oceanographic characteristics can, in turn, be attributed to the geological history of the atoll, including some human modification of the pass configuration. In addition to the studies of the atoll lagoon characteristics of the groundwater system are noted. Evidence from isolated standing water bodies on the atoll demonstrates that these features show considerable variability, which may be attributed to a combination of the immediately previous history of these bodies as well as to the physiography of the atoll. |
Parole e frasi comuni
Abudefduf abundance Acanthurus triostegus Acanthurus xanthopterus Acropora Altered Zone assemblages Atoll lagoon average length cm biogeochemical budget Canton Atoll Canton lagoon Cephalopholis Chaetodon auriga Chaetodon bennetti Chromis caeruleus coral coverage coral reefs coral rubble Ctenochaetus Ctenochaetus strigosus Dana depth distance distribution dredge Environmental Epinephelus merra Estimated average length Fanning Atoll Favia Fish Observation Fish Transect flux Forsskål Fungia genera Halomitra Hawaii individuals Estimated average inner lagoon island groups Labridae lagoon lagoon pass Leeward Ocean Reef Line Reef Zone live coral Lutjanus fulvus m² day¹ Maragos Marine McKean Millepora mmoles Monotaxis grandoculis Montipora nitrogen Number of individuals number of species nutrient ocean reef organic carbon production outer lagoon Pass Zone patch reefs patterns Pavona Phoenix Islands phosphorus Pocillopora Pomacentrus Pomacentrus nigricans pond Porites reef corals reef flats reported salinity samples sediment shallow standing crop stations survey Table Thalassoma Tide Total Species water motion