Resource Description: NODC Accession number 0000247
Table 2. Reef-fish species observed at six stations surrounding the Peacock Point Outfall, Wake Atoll, in June 1998.
Table 3. Coral species observed at six stations surrounding the Peacock Point Outfall, Wake Atoll, in June 1998.
Table 4. Mollusc species observed at six stations surrounding the Peacock Point Outfall, Wake Atoll, in June 1998.
Table 5. Echinoderm species observed at six stations surrounding the Peacock Point Outfall, Wake Atoll, in June 1998.
Table 6. Other macroinvertebrate species observed at six stations surrounding the Peacock Point Outfall, Wake Atoll, in June 1998.
Table 7. Macroalgae species observed at six stations surrounding the Peacock Point Outfall, Wake Atoll, in June 1998.
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Australian Opheliidae (Polychaeta) DELTA database (http://www.museum.vic.gov.au/poly/ophitems.html);
European register of Marine Species (http://erms.biol.soton.ac.uk/lists/brief/Polychaeta.shtml);
CRUSTACEANS OF THE CNMI (http://www.crm.gov.mp/marine/biodiversity/crusties/crust.htm);
Systema Naturae 2000 / Classification (http://sn2000.taxonomy.nl/Main/Classification/..%5C..%5C..%5CMain%5CClassification%5C15265.htm);
Smithsonian Marine Station at Fort Pierce (http://www.sms.si.edu/IRLSpec/aspecies2.htm);
Cephalaspidea from around the world (http://www.medslugs.de/Opi/CEPHALASPIDEA.htm):
Sea slug forum (http://www.seaslugforum.net/species.htm);
A Biotic Database of Indo-Pacific Marine Mollusks (http://data.acnatsci.org/obis/);
The Academy of Natural Sciences: Online collections databases (http://erato.acnatsci.org/databases/index.php):
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Data collected by U.S. FWS and U.S. NMFS (for) the U.S. Army Space and Missile Defense Command
Determine the status of the marine resources in the vicinity of the Peacock Point discharge and other point-source discharges in an effort to quantitatively ascertain if any impacts were occurring to the coral reef biota.
Station W-1 was located at coordinates 19ó 16.120' N and 166ó 39.318' E, approximately 500 ft southeast (upcurrent) of the outfall pipe and within the dischargeós Zone of Mixing (ZOM). Station W-2 was located at coordinates 19ó 16.190' N and 166ó 39.262' E, at the end of the outfall pipe and at the center of the dischargeós Zone of Initial Dilution (ZID), which was estimated to have a radius of approximately 18 ft from the end of the pipe. Station W-3 was located at 19ó 16.213' N and 166ó 39.139' E, within the ZOM approximately 500 ft northwest (downcurrent) of the pipe. Station W-4 was located at coordinates 19ó16.359' N and 166ó 38.858' E, near the downcurrent limit of the ZOM approximately 1640 ft from the end of the pipe. Station W-5 was located at 19ó16.819' N and 166ó 37.710' E, approximately 1.5 mi northwest of the pipe. Finally, Station W-6 was located at 19ó17.853' N and 166ó 35.902' E, approximately 4.5 mi northwest of the pipe.
A standardized Rapid Ecological Assessment (REA) technique was used to record observations on species and habitat conditions at each station. The technique included timed 30-minute scuba dives from a 28-ft boat that was provided by the SMDC and operated by CDC staff. During each dive, biologists swam over the reef in a meandering fashion with a minimum amount of backtracking. Species of reef fishes, corals, other macroinvertebrates, and algae were recorded. Emphasis was given to identifying conspicuous, diurnally active species. As a result, small, cryptic, and nocturnally active species are under represented in the data. For molluscs, many species identifications were based on empty shells. Observations on the presence of sea turtles were made opportunistically.
The relative abundances of observed species were ranked as Abundant, Common, Occasional, or Rare. These categories were defined as follows: Abundant (A) = the species contributes substantial abundance or coverage (25+% of total) or is very numerous in the survey area or is dominant within parts of the survey area; Common (C) = the species is present as several or more individuals or as a few larger colonies or is conspicuous in only one or a few parts of the survey area; Occasional (O) = the species is uncommon or present only as a few individuals or as a few large colonies but not contributing substantially to abundance or substrate coverage anywhere within the survey area; and Rare (R) = the species is present on the basis of only one individual seen within the survey area.
In addition, a general description of the reef habitat at each station, including the percent composition of reef substrate cover, was recorded. The latter was calculated from 50 observation points that were evenly spaced along a 165-ft transect line located at a depth of 35 ft at each station. Seven general types of cover were used to characterize the reef substrate including Hard Coral, Soft Coral, Coralline Algae, Macroalgae, Turf-Covered Boulders, Coralline-Algal Rubble, and Sand.
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