CRED REA Reef Fish Assessment Survey at Ofu And Olosega Islands, American Samoa in 2008
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Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator:
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Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
- Publication_Date: 20100320
- Title:
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CRED REA Reef Fish Assessment Survey at Ofu And Olosega Islands, American Samoa in 2008
- Geospatial_Data_Presentation_Form: spreadsheet
- Online_Linkage:
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https://www.fisheries.noaa.gov/pacific-islands/ecosystems/coral-reefs-pacific
- Description:
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- Abstract:
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To support a long-term NOAA Coral Reef Conservation Program (CRCP) for sustainable management and conservation of coral reef ecosystems, from 18 February - 19 March 2008, reef fish assessment surveys were conducted, as a part of Rapid Ecological Assessments (REA), during the Pacific Reef Assessment and Monitoring Program (RAMP) Cruise HI0802 in the American Samoa at biennial intervals by the Coral Reef Ecosystem Division (CRED) at the NOAA Pacific Islands Fisheries Science Center (PIFSC). During the cruise, 13 REA sites were surveyed at Ofu And Olosega Islands in the American Samoa.
At the specific REA sites, fish biologists along with coral biologists, algal biologists and marine invertebrate zoologist entered the water and conducted a fine-scale (~300 m2) and high degree of taxonomic resolution REA survey to assess and monitor species composition, abundance, percent cover, size distribution, diversity, and general health of fish, corals, macro-invertebrates, and algae in shallow-water (< 35 m) habitats.
Reef fish assessment surveys were focused on cataloging the diversity (species richness), abundance (numeric density [# fish 100 m-2] and biomass density [kg 100 m-2]) of diurnally active reef fish assemblages. Three complementary noninvasive underwater survey methods were used, including belt-transect, stationary point count, and roving-diver surveys. For all methods, fish were identified at the species level, when possible, and assigned to a size bin ranging from 1 to 200 cm based on a visual estimate of total fish length.
Belt-transect (BLT) surveys were used to quantify the entire diurnal fish community (all size classes). In belt-transect surveys, two fish biologists swam side-by-side along three consecutively-placed, 25m transect lines. The BLT team swam each transect two times. During the initial swim-out, each fish diver recorded all fish larger than 20 cm observed within a 4-m wide belt perpendicular to their respective side of the transect (200 m2 area per line, 100 m2 per diver). On the return swim, each fish diver recorded all fish less than 20 cm observed within a 2-m wide belt (100 m2 area per line, 50 m2 per diver). The survey of large fish took approximately 5 min to complete while the survey of smaller fish took about 10 min to complete. All reef-associated fish, including those in the water column (including planktivores), were counted. Any coastal pelagic species (e.g., clupeids [sardines], belonids [beakfish], antherinids [silversides]) seen near the surface were not recorded.
The stationary point count (SPC) method were used to quantify larger, more mobile reef fish species that can be missed on belt-transect surveys. In stationary point count survey, a fish biologist swam approximately 15 m away from a transect line concurrently being surveyed by the other two BLT fish biologists. The SPC biologist then recorded all fish greater than 25 cm in length that passed within a visually estimated 20-m diameter cylinder centered on the diver's fixed position (10-m radius, total area = 314 m2). The survey time for each stationary point count survey was 5 min and a total of four stationary point count surveys were conducted at each REA site.
Roving-diver surveys were followed belt-transect and stationary point count surveys. As diver bottom time permitted, the fish assessment team conducted random swim surveys throughout the REA site area, recording, to the species level or the lowest recognizable taxon, the presence of reef fish not encountered during previous methods.
- Purpose:
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Part of a long-term monitoring program at biennial intervals which documents the state of the reefs.
- Supplemental_Information:
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Maximum depth was 24 meters.
Fish species observed:
Year Region Island Species TaxonName
2008 SAMOA Ofu & Olosega ACAC Acanthurus achilles
2008 SAMOA Ofu & Olosega ACBL Acanthurus blochii
2008 SAMOA Ofu & Olosega ACGU Acanthurus guttatus
2008 SAMOA Ofu & Olosega ACLI Acanthurus lineatus
2008 SAMOA Ofu & Olosega ACMA Acanthurus maculiceps
2008 SAMOA Ofu & Olosega ACNC Acanthurus nigricans
2008 SAMOA Ofu & Olosega ACNI Acanthurus nigricauda
2008 SAMOA Ofu & Olosega ACNF Acanthurus nigrofuscus
2008 SAMOA Ofu & Olosega ACOL Acanthurus olivaceus
2008 SAMOA Ofu & Olosega ACPY Acanthurus pyroferus
2008 SAMOA Ofu & Olosega ACSP Acanthurus sp
2008 SAMOA Ofu & Olosega ACTH Acanthurus thompsoni
2008 SAMOA Ofu & Olosega AMSC Amanses scopas
2008 SAMOA Ofu & Olosega AMCH Amphiprion chrysopterus
2008 SAMOA Ofu & Olosega AMME Amphiprion melanopus
2008 SAMOA Ofu & Olosega ANTW Anampses twistii
2008 SAMOA Ofu & Olosega APFU Aphareus furca
2008 SAMOA Ofu & Olosega ARME Arothron meleagris
2008 SAMOA Ofu & Olosega ARNI Arothron nigropunctatus
2008 SAMOA Ofu & Olosega BAUN Balistapus undulatus
2008 SAMOA Ofu & Olosega BLEN Blenniidae sp
2008 SAMOA Ofu & Olosega BOAX Bodianus axillaris
2008 SAMOA Ofu & Olosega BOLO Bodianus loxozonus
2008 SAMOA Ofu & Olosega CATE Caesio teres
2008 SAMOA Ofu & Olosega CACA Calotomus carolinus
2008 SAMOA Ofu & Olosega CASO Canthigaster solandri
2008 SAMOA Ofu & Olosega CAME Caranx melampygus
2008 SAMOA Ofu & Olosega CAML Carcharhinus melanopterus
2008 SAMOA Ofu & Olosega CEBI Centropyge bispinosa
2008 SAMOA Ofu & Olosega CEFI Centropyge fisheri
2008 SAMOA Ofu & Olosega CEFL Centropyge flavissima
2008 SAMOA Ofu & Olosega CEHE Centropyge heraldi
2008 SAMOA Ofu & Olosega CELO Centropyge loricula
2008 SAMOA Ofu & Olosega CEAR Cephalopholis argus
2008 SAMOA Ofu & Olosega CEUR Cephalopholis urodeta
2008 SAMOA Ofu & Olosega CHCI Chaetodon citrinellus
2008 SAMOA Ofu & Olosega CHEP Chaetodon ephippium
2008 SAMOA Ofu & Olosega CHLU Chaetodon lunula
2008 SAMOA Ofu & Olosega CHLT Chaetodon lunulatus
2008 SAMOA Ofu & Olosega CHMR Chaetodon mertensii
2008 SAMOA Ofu & Olosega CHOR Chaetodon ornatissimus
2008 SAMOA Ofu & Olosega CHPW Chaetodon pelewensis
2008 SAMOA Ofu & Olosega CHQU Chaetodon quadrimaculatus
2008 SAMOA Ofu & Olosega CHRE Chaetodon reticulatus
2008 SAMOA Ofu & Olosega CHSE Chaetodon semeion
2008 SAMOA Ofu & Olosega CHUL Chaetodon ulietensis
2008 SAMOA Ofu & Olosega CHUN Chaetodon unimaculatus
2008 SAMOA Ofu & Olosega CHVG Chaetodon vagabundus
2008 SAMOA Ofu & Olosega CHFN Chlorurus frontalis
2008 SAMOA Ofu & Olosega CHJA Chlorurus japanensis
2008 SAMOA Ofu & Olosega CHSO Chlorurus sordidus
2008 SAMOA Ofu & Olosega CHAC Chromis acares
2008 SAMOA Ofu & Olosega CHAG Chromis agilis
2008 SAMOA Ofu & Olosega CHIO Chromis iomelas
2008 SAMOA Ofu & Olosega CHMA Chromis margaritifer
2008 SAMOA Ofu & Olosega CHVA Chromis vanderbilti
2008 SAMOA Ofu & Olosega CHXA Chromis xanthura
2008 SAMOA Ofu & Olosega CHBR Chrysiptera brownriggii
2008 SAMOA Ofu & Olosega CHTA Chrysiptera taupou
2008 SAMOA Ofu & Olosega CILB Cirrhilabrus sp
2008 SAMOA Ofu & Olosega CIPI Cirrhitus pinnulatus
2008 SAMOA Ofu & Olosega CIPO Cirripectes polyzona
2008 SAMOA Ofu & Olosega CIST Cirripectes stigmaticus
2008 SAMOA Ofu & Olosega CIVA Cirripectes vanderbilti
2008 SAMOA Ofu & Olosega CIVR Cirripectes variolosus
2008 SAMOA Ofu & Olosega COAY Coris aygula
2008 SAMOA Ofu & Olosega COGA Coris gaimard
2008 SAMOA Ofu & Olosega CTBI Ctenochaetus binotatus
2008 SAMOA Ofu & Olosega CTCY Ctenochaetus cyanocheilus
2008 SAMOA Ofu & Olosega CTHA Ctenochaetus hawaiiensis
2008 SAMOA Ofu & Olosega CTMA Ctenochaetus marginatus
2008 SAMOA Ofu & Olosega CTSR Ctenochaetus striatus
2008 SAMOA Ofu & Olosega DARE Dascyllus reticulatus
2008 SAMOA Ofu & Olosega DATR Dascyllus trimaculatus
2008 SAMOA Ofu & Olosega ECBC Ecsenius bicolor
2008 SAMOA Ofu & Olosega EPIN Epibulus insidiator
2008 SAMOA Ofu & Olosega EPMC Epinephelus macrospilos
2008 SAMOA Ofu & Olosega EPML Epinephelus melanostigma
2008 SAMOA Ofu & Olosega EPME Epinephelus merra
2008 SAMOA Ofu & Olosega FOFL Forcipiger flavissimus
2008 SAMOA Ofu & Olosega GNAU Gnathodentex aureolineatus
2008 SAMOA Ofu & Olosega GOVA Gomphosus varius
2008 SAMOA Ofu & Olosega GRAL Gracila albomarginata
2008 SAMOA Ofu & Olosega GYUC Gymnosarda unicolor
2008 SAMOA Ofu & Olosega HABI Halichoeres biocellatus
2008 SAMOA Ofu & Olosega HAHO Halichoeres hortulanus
2008 SAMOA Ofu & Olosega HAMA Halichoeres marginatus
2008 SAMOA Ofu & Olosega HAOR Halichoeres ornatissimus
2008 SAMOA Ofu & Olosega HEFA Hemigymnus fasciatus
2008 SAMOA Ofu & Olosega HEPO Hemitaurichthys polylepis
2008 SAMOA Ofu & Olosega HETH Hemitaurichthys thompsoni
2008 SAMOA Ofu & Olosega HECH Heniochus chrysostomus
2008 SAMOA Ofu & Olosega HEVA Heniochus varius
2008 SAMOA Ofu & Olosega HECR Heteropriacanthus cruentatus
2008 SAMOA Ofu & Olosega CHUB Kyphosidae sp
2008 SAMOA Ofu & Olosega KYCI Kyphosus cinerascens
2008 SAMOA Ofu & Olosega LABI Labroides bicolor
2008 SAMOA Ofu & Olosega LADI Labroides dimidiatus
2008 SAMOA Ofu & Olosega LARU Labroides rubrolabiatus
2008 SAMOA Ofu & Olosega LAXA Labropsis xanthonota
2008 SAMOA Ofu & Olosega LUBO Lutjanus bohar
2008 SAMOA Ofu & Olosega LUKA Lutjanus kasmira
2008 SAMOA Ofu & Olosega LUMO Lutjanus monostigma
2008 SAMOA Ofu & Olosega MAMA Macolor macularis
2008 SAMOA Ofu & Olosega MANI Macolor niger
2008 SAMOA Ofu & Olosega MAME Macropharyngodon meleagris
2008 SAMOA Ofu & Olosega MALA Malacanthus latovittatus
2008 SAMOA Ofu & Olosega MENI Melichthys niger
2008 SAMOA Ofu & Olosega MEVI Melichthys vidua
2008 SAMOA Ofu & Olosega MOGR Monotaxis grandoculis
2008 SAMOA Ofu & Olosega MUVA Mulloidichthys vanicolensis
2008 SAMOA Ofu & Olosega MYBE Myripristis berndti
2008 SAMOA Ofu & Olosega MYKU Myripristis kuntee
2008 SAMOA Ofu & Olosega MYMU Myripristis murdjan
2008 SAMOA Ofu & Olosega NABR Naso brevirostris
2008 SAMOA Ofu & Olosega NALI Naso lituratus
2008 SAMOA Ofu & Olosega NEMA Nemateleotris magnifica
2008 SAMOA Ofu & Olosega NESA Neoniphon sammara
2008 SAMOA Ofu & Olosega OSME Ostracion meleagris
2008 SAMOA Ofu & Olosega OXDI Oxycheilinus digramma
2008 SAMOA Ofu & Olosega OXUN Oxycheilinus unifasciatus
2008 SAMOA Ofu & Olosega PAAR Paracirrhites arcatus
2008 SAMOA Ofu & Olosega PAFO Paracirrhites forsteri
2008 SAMOA Ofu & Olosega PAHE Paracirrhites hemistictus
2008 SAMOA Ofu & Olosega PACY Parupeneus cyclostomus
2008 SAMOA Ofu & Olosega PAMU Parupeneus multifasciatus
2008 SAMOA Ofu & Olosega PEOU Pempheris oualensis
2008 SAMOA Ofu & Olosega PLTA Plagiotremus tapeinosoma
2008 SAMOA Ofu & Olosega PLDI Plectroglyphidodon dickii
2008 SAMOA Ofu & Olosega PLJO Plectroglyphidodon johnstonianus
2008 SAMOA Ofu & Olosega PLLA Plectroglyphidodon lacrymatus
2008 SAMOA Ofu & Olosega POIM Pomacanthus imperator
2008 SAMOA Ofu & Olosega POPA Pomacentrus pavo
2008 SAMOA Ofu & Olosega POSA Pomacentrus samoa
2008 SAMOA Ofu & Olosega POVA Pomacentrus vaiuli
2008 SAMOA Ofu & Olosega PORI Pomachromis richardsoni
2008 SAMOA Ofu & Olosega PSCO Pseudanthias cooperi
2008 SAMOA Ofu & Olosega PSPA Pseudanthias pascalus
2008 SAMOA Ofu & Olosega PSFL Pseudobalistes flavimarginatus
2008 SAMOA Ofu & Olosega PSEV Pseudocheilinus evanidus
2008 SAMOA Ofu & Olosega PSHE Pseudocheilinus hexataenia
2008 SAMOA Ofu & Olosega PSOC Pseudocheilinus octotaenia
2008 SAMOA Ofu & Olosega PSTE Pseudocheilinus tetrataenia
2008 SAMOA Ofu & Olosega PSMO Pseudodax moluccanus
2008 SAMOA Ofu & Olosega PTEV Ptereleotris evides
2008 SAMOA Ofu & Olosega PTMA Pterocaesio marri
2008 SAMOA Ofu & Olosega PTTI Pterocaesio tile
2008 SAMOA Ofu & Olosega PTVO Pterois volitans
2008 SAMOA Ofu & Olosega PYDI Pygoplites diacanthus
2008 SAMOA Ofu & Olosega SACA Sargocentron caudimaculatum
2008 SAMOA Ofu & Olosega SASP Sargocentron spiniferum
2008 SAMOA Ofu & Olosega SATI Sargocentron tiere
2008 SAMOA Ofu & Olosega SCAL Scarus altipinnis
2008 SAMOA Ofu & Olosega SCFO Scarus forsteni
2008 SAMOA Ofu & Olosega SCFR Scarus frenatus
2008 SAMOA Ofu & Olosega SCGL Scarus globiceps
2008 SAMOA Ofu & Olosega SCOV Scarus oviceps
2008 SAMOA Ofu & Olosega SCPS Scarus psittacus
2008 SAMOA Ofu & Olosega SCRU Scarus rubroviolaceus
2008 SAMOA Ofu & Olosega SCSC Scarus schlegeli
2008 SAMOA Ofu & Olosega SCSP Scarus sp
2008 SAMOA Ofu & Olosega SPQE Sphyraena qenie
2008 SAMOA Ofu & Olosega STFA Stegastes fasciolatus
2008 SAMOA Ofu & Olosega STBN Stethojulis bandanensis
2008 SAMOA Ofu & Olosega SUBU Sufflamen bursa
2008 SAMOA Ofu & Olosega SUCH Sufflamen chrysopterum
2008 SAMOA Ofu & Olosega THAM Thalassoma amblycephalum
2008 SAMOA Ofu & Olosega THLU Thalassoma lutescens
2008 SAMOA Ofu & Olosega THQU Thalassoma quinquevittatum
2008 SAMOA Ofu & Olosega VAST Valenciennea strigata
2008 SAMOA Ofu & Olosega VALO Variola louti
2008 SAMOA Ofu & Olosega ZACO Zanclus cornutus
2008 SAMOA Ofu & Olosega ZEFL Zebrasoma flavescens
2008 SAMOA Ofu & Olosega ZESC Zebrasoma scopas
2008 SAMOA Ofu & Olosega ZEVE Zebrasoma veliferum
- Time_Period_of_Content:
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- Time_Period_Information:
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- Range_of_Dates/Times:
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- Beginning_Date: 20080228
- Ending_Date: 20080304
- Currentness_Reference: Ground condition
- Status:
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- Progress: In Work
- Maintenance_and_Update_Frequency: asNeeded
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -169.696867
- East_Bounding_Coordinate: -169.589923
- North_Bounding_Coordinate: -14.144999
- South_Bounding_Coordinate: -14.212963
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: NCEI Geoportal Filter
- Theme_Keyword: CoRIS_Metadata
- Theme:
-
- Theme_Keyword_Thesaurus: CRCP Project
- Theme_Keyword:
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Pacific Reef Assessment and Monitoring Program (Pacific RAMP): Biennial monitoring for the U.S. Pacific Islands and Atolls
- Theme_Keyword: 1221
- Theme:
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- Theme_Keyword_Thesaurus: None
- Theme_Keyword: Marine Ecosystem
- Theme_Keyword: Reef Assessment and Monitoring Program (RAMP)
- Theme_Keyword: Rapid Ecological Assessments (REA)
- Theme_Keyword: Coral Reef
- Theme_Keyword: Reef Fishes
- Theme_Keyword: Belt Transect (BLT) Survey
- Theme_Keyword: Stationary Point Count (SPC )Surveys
- Theme_Keyword: Roving-diver surveys
- Theme_Keyword: American Samoa
- Theme_Keyword: Ofu And Olosega Islands
- Theme_Keyword: HI0802
- Theme:
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- Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus
- Theme_Keyword: Numeric Data Sets > Biology
- Theme:
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- Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus
- Theme_Keyword: EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs
- Theme_Keyword:
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EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral reef ecology
- Theme_Keyword:
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EARTH SCIENCE > Biosphere > Zoology > Corals > Reef monitoring and assessment
- Theme_Keyword:
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EARTH SCIENCE > Biosphere > Zoology > Corals > Reef monitoring and assessment > Rapid assessment studies
- Theme_Keyword:
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EARTH SCIENCE > Biosphere > Zoology > Corals > Reef monitoring and assessment > Reef fish census
- Theme_Keyword:
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EARTH SCIENCE > Biosphere > Zoology > Corals > Reef monitoring and assessment > Reef fish census > Stationary
- Theme_Keyword:
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EARTH SCIENCE > Biosphere > Zoology > Corals > Reef monitoring and assessment > Reef fish census > Random swimming
- Theme_Keyword:
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EARTH SCIENCE > Biosphere > Zoology > Corals > Reef monitoring and assessment > Reef fish census > Belt transect
- Theme:
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- Theme_Keyword_Thesaurus: ISO 19115 Topic Category
- Theme_Keyword: biota
- Theme_Keyword: 002
- Place:
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- Place_Keyword_Thesaurus: None
- Place_Keyword: American Samoa
- Place_Keyword: Ofu And Olosega Islands
- Place:
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- Place_Keyword_Thesaurus: CoRIS Place Thesaurus
- Place_Keyword:
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OCEAN BASIN > Pacific Ocean > Manu'a Group > Ofu Island (14S169W0013)
- Place_Keyword:
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OCEAN BASIN > Pacific Ocean > Manu'a Group > Olosega Island (14S169W0014)
- Place_Keyword:
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COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Ofu Island (14S169W0013)
- Place_Keyword:
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COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Olosega Island (14S169W0014)
- Place:
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- Place_Keyword_Thesaurus: CoRIS Region
- Place_Keyword: AmSam
- Access_Constraints: Data are available two years following data collection date.
- Use_Constraints:
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Please cite CRED when using the data. Coral Reef Ecosystem Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration
- Point_of_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization:
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Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
- Contact_Person: Ivor Williams
- Contact_Address:
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- Address_Type: mailing and physical address
- Address: NOAA IRC
- Address: NMFS/PIFSC/CRED
- Address: 1845 WASP Blvd., Building 176
- City: Honolulu
- State_or_Province: HI
- Postal_Code: 96818
- Country: USA
- Contact_Voice_Telephone: 808 725-5360
- Contact_Facsimile_Telephone: 808 725-5429
- Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
- Contact_Instructions: e-mail preferred
- Data_Set_Credit:
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"Marc Nadon, Paul Brown, Kevin O'Brien, Paula Ayotte", Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Sciences Center, National Marine Fisheries Service, NOAA
- Security_Information:
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- Security_Classification_System: Not applicable
- Security_Classification: Unclassified
- Security_Handling_Description: Not applicable
- Native_Data_Set_Environment: Oracle
- Data_Quality_Information:
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- Attribute_Accuracy:
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- Attribute_Accuracy_Report:
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Observations at each site were made by three divers who are experts in fish taxonomy. The team of three REA fish divers rotated roles with two divers performing belt-transect surveys and one diver performing stationary point counts at each survey site. Observations were periodically checked during the expedition for consistency between divers, and little discrepancy was ever noted between divers. It should be noted, however, that this data set is quite large, and probably includes typographical or other errors that might be discovered at a future date.
- Logical_Consistency_Report:
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The same methods of data collection were used at each of the sites surveyed at this location, and were conducted by the same scientists. Periodic examination of the data through the duration of the trip showed no signs of diver bias or other discrepancies.
- Completeness_Report:
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The survey sites were selected to be representative of the coral reef habitats at this reef system. Efforts were made to include broad spatial coverage of the reef area, but weather conditions or other environmental constraints may have precluded the team from surveying windward or exposed sites.
- Positional_Accuracy:
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- Horizontal_Positional_Accuracy:
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- Horizontal_Positional_Accuracy_Report: GPS unit
- Quantitative_Horizontal_Positional_Accuracy_Assessment:
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- Horizontal_Positional_Accuracy_Value: 1
- Horizontal_Positional_Accuracy_Explanation: Instrument parameters
- Vertical_Positional_Accuracy:
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- Vertical_Positional_Accuracy_Report: Dive computer and SCUBA depth gauge
- Quantitative_Vertical_Positional_Accuracy_Assessment:
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- Vertical_Positional_Accuracy_Value: 0.3
- Vertical_Positional_Accuracy_Explanation: Instrument parameters
- Lineage:
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- Process_Step:
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- Process_Description:
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REA surveys are investigations that provide a high degree of taxonomic resolution for coral, algae, other macroinvertebrate, and reef fish communities. The surveys were conducted using a combination of dive teams which generally included a two to three person fish team, a two person coral/coral disease team, and a combined team of two algae biologists and one macroinvertebrate biologist. The majority of REA surveys were conducted along the forereef slopes of individual islands at depths between 10 and 20 m. However, additional surveyed habitats included a lagoonal-type patch reef and offshore oceanic banks.
During REA surveys, biological assessment teams follow highly structured protocols that are repeated at each REA site. Upon arrival at an REA site, three teams of divers enter the water over spaced time intervals. The fish team firstly enters the water and deploys a 25-m transect line. Two of the fish divers begin to survey along that transect while the remaining fish diver begins stationary point count assessments in the general vicinity. After approximately 20 min, the coral team enters the water and begins to work along the first transect line. By this time the fish team has deployed and begun surveys along a second 25-m transect. About 10 min later, the algal/invertebrate team enters the water and begins surveying the first transect. In total, the fish team surveys three transects at each site (transects 1, 2, and 3), and the coral and algal/invertebrate teams survey transects 1 and 2. The sampling effort takes between 60 and 80 min to complete.
The selection of REA sites was made in close consultation with Coral Reef Advisory Group (CRAG) and local agencies. Factors considered during REA site selection included: (1) ensuring a range of sample sites representative of the benthic and reef fish habitats around each island; (2) selecting a mixture of sites within and outside of marine protected areas; (3) selecting a mixture of both 'impacted' and 'least impacted' sites; (4) selecting some sites adjacent to local villages, and (5) selecting a number of sites that could be compared to and complement previous assessment and monitoring work as well as future coral reef monitoring proposed by CRAG and local agencies. It is important to note that access to REA sites can be limited by wave exposure, weather conditions, and other environmental factors such as currents, which can affect the ability to resurvey sites between years.
Transect placement was guided by: (1) a focus on hard-bottom communities; (2) deploying lines along an isobath to the extent possible at each site, and (3) laying the transect lines into the prevailing current.
- Process_Date: Unknown
- Spatial_Reference_Information:
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- Horizontal_Coordinate_System_Definition:
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- Geographic:
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- Latitude_Resolution: 0.0001
- Longitude_Resolution: 0.0001
- Geographic_Coordinate_Units: Decimal Degrees
- Geodetic_Model:
-
- Horizontal_Datum_Name: World Geodetic System 1984 (WGS84)
- Ellipsoid_Name: Geodetic Reference System 80 (GRS80)
- Semi-major_Axis: 6378137
- Denominator_of_Flattening_Ratio: 298.2572236
- Vertical_Coordinate_System_Definition:
-
- Depth_System_Definition:
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- Depth_Datum_Name: Local surface
- Depth_Resolution: 1
- Depth_Distance_Units: meters
- Depth_Encoding_Method: Explicit Depth Coordinate Included with Horizontal Coordinates
- Distribution_Information:
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- Distributor:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization:
-
Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
- Contact_Person: CRED Data Management Team
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: NOAA IRC
- Address: NMFS/PIFSC/CRED
- Address: 1845 WASP Blvd., Building 176
- City: Honolulu
- State_or_Province: HI
- Postal_Code: 96818
- Country: USA
- Contact_Voice_Telephone: 808 725-5360
- Contact_Facsimile_Telephone: 808 725-5429
- Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
- Contact_Instructions: e-mail preferred
- Resource_Description: Offline Data
- Distribution_Liability:
-
While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
- Standard_Order_Process:
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- Digital_Form:
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- Digital_Transfer_Information:
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- Format_Name: XLS (Microsoft Excel worksheet)
- Digital_Transfer_Option:
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- Offline_Option:
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- Offline_Media: CDROM, or email
- Recording_Format: ISO 9660
- Fees: None if receiving the data online
- Custom_Order_Process: Contact CRED data management team for information
- Technical_Prerequisites: Contact CRED data management team for information
- Metadata_Reference_Information:
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- Metadata_Date: 20190526
- Metadata_Review_Date: 20090910
- Metadata_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization:
-
Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: NOAA IRC
- Address: NMFS/PIFSC/CRED
- Address: 1845 WASP Blvd., Building 176
- City: Honolulu
- State_or_Province: HI
- Postal_Code: 96818
- Country: USA
- Contact_Voice_Telephone: 808 725-5360
- Contact_Facsimile_Telephone: 808 725-5429
- Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
- Contact_Instructions: e-mail preferred
- Metadata_Standard_Name: the Content Standard for Digital Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001-1998
- CoRIS:
-
- CoRIS_ID: 20090910013400
- CoRIS_Children: None
- CoRIS_Beginning_Date: 20080228
- CoRIS_Ending_Date: 20080304
- CoRIS_Metadata_Link:
-
https://www.coris.noaa.gov/metadata/records/html/cred_rea_fish_ofu_and_olosega_islands_2008.html
- CoRIS_Tracking_ID: 2887
Generated by mp version 2.9.48 on Fri May 3 10:56:43 2024