ESD_FISH_REA_DataDictionary_2024

Unique identifier for fish REA observations.

Unique Identifier for ROUND record.

Mission Identifier.

The Pacific Island region surveyed: American Samoa, Pacific Remote Island Areas, Mariana Archipelago, main Hawaiian Islands, Northwestern Hawaiian Islands.

Island or Atoll surveyed in the Pacific Island region (REGION_NAME).

The code for the site surveyed at the island or atoll (ISLAND). Combines a 3-letter island code with a 2-4 digit site number.

Latitude in decimal degrees, WGS84, for the given SITE as recorded by divers on the datasheets.

Longitude in decimal degrees, WGS84 for the given SITE as recorded by divers on the datasheets.

The zone for the given SITE (Forereef, Backreef, Protected Slope, Lagoon).

Classification of depth (shallow, mid, deep) based on midpoint between minimum and maximum depths of replicates at this site. Shallow: >0-6 m, Mid: >6-18 m, Deep: >18-30 m.

Unique identifier created each time a SITE is surveyed on a DATE_.

Local date the survey was conducted.

4-digit year the survey was conducted (DATE_).

Initials of diver that conducted the survey.

Unique identifier for the replicate sample within a Fish REA survey.

Letter associated to replicate (A, B, C, or D).

Fish method employed: stationary point count (nSPC).

Flag to indicate photographer of benthic photos. Two divers simultaneously conduct a survey at a site (indicated by the initials of the observer in the DIVER field), only one of which captures the benthic photos. Value -1 indicates the photographer.

Flag to signify whether replicate was for training purposes. Value -1 indicates the replicate was for training.

Depth of survey area in meters. Depths usually within 0-30 m.

Radius of survey area in meters, usually 7.5 m (15-m SPC survey 'cylinder').

Hard coral cover (0-100%). Sum of benthic composition categories equals 100. Starting 2024 this is null as this value was calculated from benthic imagery rather than during fish surveys.

Soft coral cover (0-100%). Sum of benthic composition categories equals 100. No longer collected as of 2016 surveys; pooled into OTHER.

Macroalgae cover (0-100%). Sum of benthic composition categories equals 100. Starting 2024 this is null as this value was calculated from benthic imagery rather than during fish surveys.

Crustose coralline algae (CCA) cover (0-100%). Sum of benthic composition categories equals 100. Starting 2024 this is null as this value was calculated from benthic imagery rather than during fish surveys.

Turf algae cover (0-100%). Sum of benthic composition categories equals 100. No longer collected as of 2016 surveys; pooled into OTHER.

Sand cover (0-100%). Sum of benthic composition categories equals 100. Starting 2024 this is null as this value was calculated from benthic imagery rather than during fish surveys.

Tunicate cover (0-100%). Sum of benthic composition categories equals 100. No longer collected as of 2016 surveys; pooled into OTHER.

Zoanthid cover (0-100%). Sum of benthic composition categories equals 100. No longer collected as of 2016 surveys; pooled into OTHER.

Corallimorph cover (0-100%). Sum of benthic composition categories equals 100. No longer collected as of 2016 surveys; pooled into OTHER.

Clam cover (0-100%). Sum of benthic composition categories equals 100. No longer collected as of 2016 surveys; pooled into OTHER.

Cyanobacteria cover (0-100%). Sum of benthic composition categories equals 100. No longer collected as of 2016 surveys; pooled into OTHER.

Sponge cover (0-100%). Sum of benthic composition categories equals 100. No longer collected as of 2016 surveys; pooled into OTHER.

Other benthic composition value (0-100%). Sum of benthic composition categories equals 100. Turf algae, tunicates, zoanthids, corallimorphs, clams, cyanobacteria, soft coral, and sponges are pooled into this category as of 2016 surveys. Starting 2024 this is null as this value was calculated from benthic imagery rather than during fish surveys.

Other benthic composition type. No longer collected as of 2016 surveys.

Code for HABITAT_TYPE.

Description of the habitat type (e.g., Aggregate Patch Reef, Pavement, Spur and Groove, Rock/Boulder).

Current Strength (None, Slight, Moderate, High).

Visibility measured in meters.

Minimum depth of the diver’s survey cylinder in meters.

Maximum depth of the diver’s survey cylinder in meters.

Proportion of survey area between 0-20 cm elevation (0-100%). Sum of SUBSTRATE_HEIGHT fields equals 100. Starting 2024 this is null as this value was calculated from benthic imagery rather than during fish surveys.

Proportion of survey area between 20-50 cm elevation (0-100%). Sum of SUBSTRATE_HEIGHT fields equals 100. Starting 2024 this is null as this value was calculated from benthic imagery rather than during fish surveys.

Proportion of survey area between 50-100 cm elevation (0-100%). Sum of SUBSTRATE_HEIGHT fields equals 100. Starting 2024 this is null as this value was calculated from benthic imagery rather than during fish surveys.

Proportion of survey area between 100-150 cm elevation (0-100%). Sum of SUBSTRATE_HEIGHT fields equals 100. Starting 2024 this is null as this value was calculated from benthic imagery rather than during fish surveys.

Proportion of survey area over 150 cm elevation (0-100%). Sum of SUBSTRATE_HEIGHT fields equals 100. Starting 2024 this is null as this value was calculated from benthic imagery rather than during fish surveys.

Highest elevation point in SPC cylinder measured in meters.

Free urchin abundance, estimated by DACOR, an abundance code based on visual estimation (Dominant, Abundant, Common, Occasional, and Rare). Starting 2024 this is null as this value was calculated from benthic imagery rather than during fish surveys.

Boring urchin abundance, estimated by DACOR, an abundance code based on visual estimation (Dominant, Abundant, Common, Occasional, and Rare). Starting 2024 this is null as this value was calculated from benthic imagery rather than during fish surveys.

4-letter code for TAXONNAME. Required.

Scientific name of observed organism to the finest taxonomic resolution that divers can identify a fish to, usually to species (see RANK). Required.

Common name (from FishBase).

Common name of all families.

Taxonomic classification: Family of observed organism (TAXONNAME).

Taxonomic classification: the true scientific name (genus and species) of the observed organism (TAXONNAME). If NULL, organism not identified to species taxonomic level (see RANK).

Lowest defined rank in taxonomic hierarchy.

Trophic level: APEX (apex predator), Cor (corallivore), H (herbivore), MI (mobile invertivore), Om (Omnivore), Par (parasite), Pisc (piscivore), Pk (planktivore), SI (sessile invertivore), X (if unidentified fish), Z (zooplantivore).

Trophic level scheme used (Primary Consumer, Secondary Consumer, Planktivore, Piscivore).

Parameter "a" used in length-weight calculations.

Parameter "b" used in length-weight calculations.

Maximum length of the fish published in literature.

Factor to convert length as TOTAL LENGTH to get it to right form (standard [SL], fork [FL], or total length [TL]) for available length weight A and B parameters for this species.

Number of fish observed during survey.

Total length of fish, measured from the tip of the snout to the tip of the longer lobe of the caudal fin, reported in centimeters. Total length for rays (Myliobatidae) is measured from pectoral fin tip to pectoral fin tip.

Code for OBS_DESC.

The type of observation made during the fish survey (Instantaneous, non-instantaneous, after 5 minutes, after 10 minutes, presence). See the Reef Fish Survey Protocol for an explanation of the observation types.