← Search

Text · collection · 2011

CRED Towed-Diver Fish Biomass Surveys in the Pacific Ocean 2000-2010

Listed in NASA Earthdata CMR

Description

Abstract written by OBIS-USA using excerpts from CRED Homepage Quantitative assessment and monitoring of shallow reef fish assemblages is conducted around the US Pacific Islands as an integral part of the NOAA/NMFS/PIFSC Coral Reef Ecosystem Division's mission to improve our scientific understanding of these fish resources and related ecosystems. As fish are the primary sustainable living resource on Pacific coral reefs, results contribute to the scientific basis essential for sound management.

Related objectives include: creating a fish baseline to measure marine protected area (MPA) effectiveness; monitoring size-frequency of fish assemblages; assessing the status of target, indicator or keystone species; assessing responses by fish communities to possible ecosystem impacts (e.g., fishing, ecotourism, pollution, habitat damage, sedimentation, hurricanes); and assessing species composition and diversity, by area, and the effectiveness of long-term monitoring of managed areas.

Read the rest (2 more)

Several complementary, noninvasive underwater-surveys are used to enumerate the diverse components of diurnally active shallow-water reef fish assemblages. Survey types include: (1) Rapid Ecological Assessments (REA) to document simple species presence at a station or reef/bank (2) Belt Transects (BLT) mainly to quantify relatively small-bodied and abundant fishes (3) Stationary Point Counts (SPC) to quantify relatively larger (>25 cm total length) and more vagile fish species (4) Towed-Diver Video Surveys (TDVS) to quantify relatively large-bodied (>50 cm total length), wide-ranging fishes over a broad-spatial scale Each method is replicated at sites within and/or among the various habitat types present around each island or bank.

Fish length-class is estimated for all quantified fish to provide an estimate of numerical size structure and biomass densities by taxa.

Links

Get the data

  • usgs.gov /obis-usa ↗

    This will direct you to the OBIS-USA web site. Select Participants and Datasets from the panel on the left. Scroll down to CRED_Fish_TDS and click on the "Go" button on the right for a Dataset Detail

    download · from NASA CMR

Documentation and papers

Catalogue records · 2

Topics

Inferred from text
Video 75%
Provenance · 1 source records, 15 field assertions
SourceKeyLast seenRaw
NASA Earthdata CMRC1214597958-SCIOPS14 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/biological-classification/animals-vertebrates/fishsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/biological-classification/animals-vertebrates/fish/ray-finned-fishessource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/biological-classification/animals-vertebrates/fish/ray-finned-fishes/perch-like-fishessource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/biological-classification/animals-vertebrates/fish/sharks-rays-chimaerassource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/oceans/coastal-processes/coral-reefssource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[modality].local:modality:videoenrichment · NASA CMRkeyword-concept-rules@1.0.0title+description (75%)
concepts[platform].gcmd_platform:not-providedsource · NASA CMRconnector:nasa_cmr@1.0.0
descriptionsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/Abstract
license_textsource · NASA CMRconnector:nasa_cmr@1.0.0
publication_datesource · NASA CMRconnector:nasa_cmr@1.0.0
spatialsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/SpatialExtent
temporalsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/TemporalExtents
titlesource · NASA CMRconnector:nasa_cmr@1.0.0/umm/EntryTitle
version_labelsource · NASA CMRconnector:nasa_cmr@1.0.0