CRED REA Reef Fish Assessment Survey at Rota Island, Marianas Archipelago in 2009
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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: 20090415
- Title:
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CRED REA Reef Fish Assessment Survey at Rota Island, Marianas Archipelago in 2009
- 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 5 April - 14 April 2009, reef fish assessment surveys were conducted, as a part of Rapid Ecological Assessments (REA), during the Pacific Reef Assessment and Monitoring Program (RAMP) Cruise HI0902 in the Marianas Archipelago at biennial intervals by the Coral Reef Ecosystem Division (CRED) at the NOAA Pacific Islands Fisheries Science Center (PIFSC). During the cruise, 14 REA sites were surveyed at Rota Island in the Marianas Archipelago.
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 28 meters.
Fish species observed:
Year Region Island Species TaxonName
2009 MARIAN Rota ABSO Abudefduf sordidus
2009 MARIAN Rota ABVA Abudefduf vaigiensis
2009 MARIAN Rota ACAC Acanthurus achilles
2009 MARIAN Rota ACBL Acanthurus blochii
2009 MARIAN Rota ACGU Acanthurus guttatus
2009 MARIAN Rota ACLI Acanthurus lineatus
2009 MARIAN Rota ACNC Acanthurus nigricans
2009 MARIAN Rota ACNI Acanthurus nigricauda
2009 MARIAN Rota ACNF Acanthurus nigrofuscus
2009 MARIAN Rota ACOL Acanthurus olivaceus
2009 MARIAN Rota ACPY Acanthurus pyroferus
2009 MARIAN Rota ACTH Acanthurus thompsoni
2009 MARIAN Rota ACTR Acanthurus triostegus
2009 MARIAN Rota ACXA Acanthurus xanthopterus
2009 MARIAN Rota ALSC Aluterus scriptus
2009 MARIAN Rota ANCA Anampses caeruleopunctatus
2009 MARIAN Rota ANMG Anampses meleagrides
2009 MARIAN Rota ANTW Anampses twistii
2009 MARIAN Rota APFU Aphareus furca
2009 MARIAN Rota APSP Apogon sp
2009 MARIAN Rota APTR Apolemichthys trimaculatus
2009 MARIAN Rota APVI Aprion virescens
2009 MARIAN Rota ARHI Arothron hispidus
2009 MARIAN Rota ARME Arothron meleagris
2009 MARIAN Rota ARNI Arothron nigropunctatus
2009 MARIAN Rota AUCH Aulostomus chinensis
2009 MARIAN Rota BAUN Balistapus undulatus
2009 MARIAN Rota BACO Balistoides conspicillum
2009 MARIAN Rota BAVI Balistoides viridescens
2009 MARIAN Rota BLEN Blenniidae sp
2009 MARIAN Rota BOAX Bodianus axillaris
2009 MARIAN Rota CACA Calotomus carolinus
2009 MARIAN Rota CADU Cantherhines dumerilii
2009 MARIAN Rota CASO Canthigaster solandri
2009 MARIAN Rota CAVA Canthigaster valentini
2009 MARIAN Rota CAME Caranx melampygus
2009 MARIAN Rota CAAB Carcharhinus amblyrhynchos
2009 MARIAN Rota CAML Carcharhinus melanopterus
2009 MARIAN Rota CEFL Centropyge flavissima
2009 MARIAN Rota CEHE Centropyge heraldi
2009 MARIAN Rota CESH Centropyge shepardi
2009 MARIAN Rota CEAR Cephalopholis argus
2009 MARIAN Rota CESP Cephalopholis spiloparaea
2009 MARIAN Rota CEUR Cephalopholis urodeta
2009 MARIAN Rota CHAU Chaetodon auriga
2009 MARIAN Rota CHCI Chaetodon citrinellus
2009 MARIAN Rota CHEP Chaetodon ephippium
2009 MARIAN Rota CHKL Chaetodon kleinii
2009 MARIAN Rota CHLI Chaetodon lineolatus
2009 MARIAN Rota CHLU Chaetodon lunula
2009 MARIAN Rota CHML Chaetodon melannotus
2009 MARIAN Rota CHMR Chaetodon mertensii
2009 MARIAN Rota CHOR Chaetodon ornatissimus
2009 MARIAN Rota CHPU Chaetodon punctatofasciatus
2009 MARIAN Rota CHQU Chaetodon quadrimaculatus
2009 MARIAN Rota CHRE Chaetodon reticulatus
2009 MARIAN Rota CHTR Chaetodon trifascialis
2009 MARIAN Rota CHUL Chaetodon ulietensis
2009 MARIAN Rota CHUN Chaetodon unimaculatus
2009 MARIAN Rota CHOX Cheilinus oxycephalus
2009 MARIAN Rota CHTL Cheilinus trilobatus
2009 MARIAN Rota CHUD Cheilinus undulatus
2009 MARIAN Rota CHFN Chlorurus frontalis
2009 MARIAN Rota CHMC Chlorurus microrhinos
2009 MARIAN Rota CHSO Chlorurus sordidus
2009 MARIAN Rota CHAC Chromis acares
2009 MARIAN Rota CHAG Chromis agilis
2009 MARIAN Rota CHAM Chromis amboinensis
2009 MARIAN Rota CHMA Chromis margaritifer
2009 MARIAN Rota CHVA Chromis vanderbilti
2009 MARIAN Rota CHXA Chromis xanthura
2009 MARIAN Rota CHBR Chrysiptera brownriggii
2009 MARIAN Rota CHGL Chrysiptera glauca
2009 MARIAN Rota CHTY Chrysiptera traceyi
2009 MARIAN Rota CIKA Cirrhilabrus katherinae
2009 MARIAN Rota CIFL Cirrhitichthys falco
2009 MARIAN Rota CIVR Cirripectes variolosus
2009 MARIAN Rota COAY Coris aygula
2009 MARIAN Rota COGA Coris gaimard
2009 MARIAN Rota CTBI Ctenochaetus binotatus
2009 MARIAN Rota CTCY Ctenochaetus cyanocheilus
2009 MARIAN Rota CTSR Ctenochaetus striatus
2009 MARIAN Rota DARE Dascyllus reticulatus
2009 MARIAN Rota DATR Dascyllus trimaculatus
2009 MARIAN Rota DEMA Decapterus macarellus
2009 MARIAN Rota ECBC Ecsenius bicolor
2009 MARIAN Rota EPIN Epibulus insidiator
2009 MARIAN Rota EPFA Epinephelus fasciatus
2009 MARIAN Rota EXBR Exallias brevis
2009 MARIAN Rota FOFL Forcipiger flavissimus
2009 MARIAN Rota FOLO Forcipiger longirostris
2009 MARIAN Rota GNAU Gnathodentex aureolineatus
2009 MARIAN Rota GOBI Gobiidae sp
2009 MARIAN Rota GOVA Gomphosus varius
2009 MARIAN Rota HABI Halichoeres biocellatus
2009 MARIAN Rota HAHO Halichoeres hortulanus
2009 MARIAN Rota HAMT Halichoeres margaritaceus
2009 MARIAN Rota HAMA Halichoeres marginatus
2009 MARIAN Rota HAOR Halichoeres ornatissimus
2009 MARIAN Rota HATR Halichoeres trimaculatus
2009 MARIAN Rota HEFA Hemigymnus fasciatus
2009 MARIAN Rota HEPO Hemitaurichthys polylepis
2009 MARIAN Rota HEAC Heniochus acuminatus
2009 MARIAN Rota HECH Heniochus chrysostomus
2009 MARIAN Rota HEMO Heniochus monoceros
2009 MARIAN Rota HILO Hipposcarus longiceps
2009 MARIAN Rota HODO Hologymnosus doliatus
2009 MARIAN Rota CHUB Kyphosidae sp
2009 MARIAN Rota KYPA Kyphosus pacificus
2009 MARIAN Rota LABI Labroides bicolor
2009 MARIAN Rota LADI Labroides dimidiatus
2009 MARIAN Rota LAXA Labropsis xanthonota
2009 MARIAN Rota EMPE Lethrinidae sp
2009 MARIAN Rota LEHA Lethrinus harak
2009 MARIAN Rota LEOB Lethrinus obsoletus
2009 MARIAN Rota LEXA Lethrinus xanthochilus
2009 MARIAN Rota LUBO Lutjanus bohar
2009 MARIAN Rota LUFU Lutjanus fulvus
2009 MARIAN Rota LUGI Lutjanus gibbus
2009 MARIAN Rota LUKA Lutjanus kasmira
2009 MARIAN Rota LUMO Lutjanus monostigma
2009 MARIAN Rota MAMA Macolor macularis
2009 MARIAN Rota MANI Macolor niger
2009 MARIAN Rota MAME Macropharyngodon meleagris
2009 MARIAN Rota MABR Malacanthus brevirostris
2009 MARIAN Rota MALA Malacanthus latovittatus
2009 MARIAN Rota MEAT Meiacanthus atrodorsalis
2009 MARIAN Rota MENI Melichthys niger
2009 MARIAN Rota MEVI Melichthys vidua
2009 MARIAN Rota MOGR Monotaxis grandoculis
2009 MARIAN Rota MUFL Mulloidichthys flavolineatus
2009 MARIAN Rota MUVA Mulloidichthys vanicolensis
2009 MARIAN Rota MYAM Myripristis amaena
2009 MARIAN Rota MYBE Myripristis berndti
2009 MARIAN Rota MYKU Myripristis kuntee
2009 MARIAN Rota MYMU Myripristis murdjan
2009 MARIAN Rota NABR Naso brevirostris
2009 MARIAN Rota NAHE Naso hexacanthus
2009 MARIAN Rota NALI Naso lituratus
2009 MARIAN Rota NATO Naso tonganus
2009 MARIAN Rota NAVL Naso vlamingii
2009 MARIAN Rota NEMA Nemateleotris magnifica
2009 MARIAN Rota NEAR Neocirrhites armatus
2009 MARIAN Rota NESA Neoniphon sammara
2009 MARIAN Rota NOTA Novaculichthys taeniourus
2009 MARIAN Rota ODNI Odonus niger
2009 MARIAN Rota OPPU Oplegnathus punctatus
2009 MARIAN Rota OSCU Ostracion cubicus
2009 MARIAN Rota OXDI Oxycheilinus digramma
2009 MARIAN Rota OXUN Oxycheilinus unifasciatus
2009 MARIAN Rota PAAR Paracirrhites arcatus
2009 MARIAN Rota PAFO Paracirrhites forsteri
2009 MARIAN Rota PAHE Paracirrhites hemistictus
2009 MARIAN Rota PAPR Paraluteres prionurus
2009 MARIAN Rota PACL Parapercis clathrata
2009 MARIAN Rota PABA Parupeneus barberinus
2009 MARIAN Rota PACY Parupeneus cyclostomus
2009 MARIAN Rota PAIN Parupeneus insularis
2009 MARIAN Rota PAMU Parupeneus multifasciatus
2009 MARIAN Rota PAPL Parupeneus pleurostigma
2009 MARIAN Rota PEOU Pempheris oualensis
2009 MARIAN Rota PLPI Plectorhinchus picus
2009 MARIAN Rota PLDI Plectroglyphidodon dickii
2009 MARIAN Rota PLIM Plectroglyphidodon imparipennis
2009 MARIAN Rota PLJO Plectroglyphidodon johnstonianus
2009 MARIAN Rota PLLA Plectroglyphidodon lacrymatus
2009 MARIAN Rota POIM Pomacanthus imperator
2009 MARIAN Rota POVA Pomacentrus vaiuli
2009 MARIAN Rota POGU Pomachromis guamensis
2009 MARIAN Rota PSPA Pseudanthias pascalus
2009 MARIAN Rota PSEV Pseudocheilinus evanidus
2009 MARIAN Rota PSHE Pseudocheilinus hexataenia
2009 MARIAN Rota PSOC Pseudocheilinus octotaenia
2009 MARIAN Rota PSTE Pseudocheilinus tetrataenia
2009 MARIAN Rota PSMO Pseudodax moluccanus
2009 MARIAN Rota PSCE Pseudojuloides cerasinus
2009 MARIAN Rota PTEV Ptereleotris evides
2009 MARIAN Rota PTHE Ptereleotris heteroptera
2009 MARIAN Rota PTZE Ptereleotris zebra
2009 MARIAN Rota PTTI Pterocaesio tile
2009 MARIAN Rota PTAN Pterois antennata
2009 MARIAN Rota PYDI Pygoplites diacanthus
2009 MARIAN Rota RHRE Rhinecanthus rectangulus
2009 MARIAN Rota SACA Sargocentron caudimaculatum
2009 MARIAN Rota SADI Sargocentron diadema
2009 MARIAN Rota SASP Sargocentron spiniferum
2009 MARIAN Rota SATI Sargocentron tiere
2009 MARIAN Rota SAGR Saurida gracilis
2009 MARIAN Rota PARR Scaridae sp
2009 MARIAN Rota SCAL Scarus altipinnis
2009 MARIAN Rota SCFO Scarus forsteni
2009 MARIAN Rota SCFR Scarus frenatus
2009 MARIAN Rota SCGH Scarus ghobban
2009 MARIAN Rota SCGL Scarus globiceps
2009 MARIAN Rota SCNI Scarus niger
2009 MARIAN Rota SCPS Scarus psittacus
2009 MARIAN Rota SCRU Scarus rubroviolaceus
2009 MARIAN Rota SCSC Scarus schlegeli
2009 MARIAN Rota GROU Serranidae sp
2009 MARIAN Rota RABB Siganidae sp
2009 MARIAN Rota SIAR Siganus argenteus
2009 MARIAN Rota STFA Stegastes fasciolatus
2009 MARIAN Rota STNI Stegastes nigricans
2009 MARIAN Rota STBN Stethojulis bandanensis
2009 MARIAN Rota STST Stethojulis strigiventer
2009 MARIAN Rota SUBU Sufflamen bursa
2009 MARIAN Rota SUCH Sufflamen chrysopterum
2009 MARIAN Rota SUFR Sufflamen fraenatum
2009 MARIAN Rota LIZA Synodontidae sp
2009 MARIAN Rota THAM Thalassoma amblycephalum
2009 MARIAN Rota THLU Thalassoma lutescens
2009 MARIAN Rota THQU Thalassoma quinquevittatum
2009 MARIAN Rota TROB Triaenodon obesus
2009 MARIAN Rota VAST Valenciennea strigata
2009 MARIAN Rota VAAL Variola albimarginata
2009 MARIAN Rota VALO Variola louti
2009 MARIAN Rota ZACO Zanclus cornutus
2009 MARIAN Rota ZEFL Zebrasoma flavescens
2009 MARIAN Rota ZESC Zebrasoma scopas
2009 MARIAN Rota 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: 20090409
- Ending_Date: 20090410
- Currentness_Reference: Ground condition
- Status:
-
- Progress: In Work
- Maintenance_and_Update_Frequency: asNeeded
- Spatial_Domain:
-
- Bounding_Coordinates:
-
- West_Bounding_Coordinate: 145.082127
- East_Bounding_Coordinate: 145.313205
- North_Bounding_Coordinate: 14.208789
- South_Bounding_Coordinate: 14.08137
- Keywords:
-
- Theme:
-
- Theme_Keyword_Thesaurus: NCEI Geoportal Filter
- Theme_Keyword: CoRIS_Metadata
- Theme:
-
- Theme_Keyword_Thesaurus: CRCP Project
- Theme_Keyword:
-
Pacific Reef Assessment and Monitoring Program (Pacific RAMP): Biennial monitoring for the U.S. Pacific Islands and Atolls
- Theme_Keyword: 1221
- Theme:
-
- 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: Marianas Archipelago
- Theme_Keyword: Rota Island
- Theme_Keyword: HI0902
- Theme:
-
- Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus
- Theme_Keyword: Numeric Data Sets > Biology
- Theme:
-
- Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus
- Theme_Keyword: EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs
- Theme_Keyword:
-
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: Marianas Archipelago
- Place_Keyword: Rota Island
- Place:
-
- Place_Keyword_Thesaurus: CoRIS Place Thesaurus
- Place_Keyword:
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OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Rota Island > Rota Island ( Luta ) (14N145E0007)
- Place_Keyword:
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COUNTRY/TERRITORY > Northern Mariana Islands > Rota > Rota Island ( Luta ) (14N145E0007)
- Place:
-
- Place_Keyword_Thesaurus: CoRIS Region
- Place_Keyword: CNMI
- 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:
-
- 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:
-
"Robert Schroeder, Marc Nadon, Paula Ayotte, Valerie Brown", Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Sciences Center, National Marine Fisheries Service, NOAA
- Security_Information:
-
- Security_Classification_System: Not applicable
- Security_Classification: Unclassified
- Security_Handling_Description: Not applicable
- Native_Data_Set_Environment: Oracle
- Data_Quality_Information:
-
- Attribute_Accuracy:
-
- 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:
-
- Horizontal_Positional_Accuracy:
-
- Horizontal_Positional_Accuracy_Report: GPS unit
- Quantitative_Horizontal_Positional_Accuracy_Assessment:
-
- Horizontal_Positional_Accuracy_Value: 1
- Horizontal_Positional_Accuracy_Explanation: Instrument parameters
- Vertical_Positional_Accuracy:
-
- Vertical_Positional_Accuracy_Report: Dive computer and SCUBA depth gauge
- Quantitative_Vertical_Positional_Accuracy_Assessment:
-
- Vertical_Positional_Accuracy_Value: 0.3
- Vertical_Positional_Accuracy_Explanation: Instrument parameters
- Lineage:
-
- Process_Step:
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- Process_Description:
-
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:
-
- Horizontal_Coordinate_System_Definition:
-
- Geographic:
-
- 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:
-
- Depth_Datum_Name: Local surface
- Depth_Resolution: 1
- Depth_Distance_Units: meters
- Depth_Encoding_Method: Explicit Depth Coordinate Included with Horizontal Coordinates
- Distribution_Information:
-
- 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:
-
- Digital_Transfer_Information:
-
- Format_Name: XLS (Microsoft Excel worksheet)
- Digital_Transfer_Option:
-
- Offline_Option:
-
- 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:
-
- Metadata_Date: 20190526
- Metadata_Review_Date: 20090914
- 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: 20090914040509
- CoRIS_Children: None
- CoRIS_Beginning_Date: 20090409
- CoRIS_Ending_Date: 20090410
- CoRIS_Metadata_Link:
-
https://www.coris.noaa.gov/metadata/records/html/cred_rea_fish_rota_island_2009.html
- CoRIS_Tracking_ID: 2903
Generated by mp version 2.9.48 on Wed Mar 27 10:51:46 2024