Descrição
Belt transects (BLT) are a non-invasive underwater-survey method that enumerates the diverse components of diurnally active shallow-water reef fish assemblages. At each Rapid Ecological Assessment survey site, BLT fish surveys are conducted along 3 consecutively-placed, 25m transect lines to quantify relatively small-bodied and abundant fishes. A pair of scuba diver-observers conducts parallel swims along the transect lines, recording size-class specific counts of all fishes encountered, to species-level where possible, within visually estimated but defined belt widths: 4 m wide for fishes > 20 cm TL (100 m2 area) on the initial swim-out, and 2 m wide for fishes < 20 cm TL (50 m2 area) on the subsequent swim back. Transect lines are typically set at depths of 10-15 m. Reef ledges and holes are visually searched. Stations are completed on all sides of the island/atoll, weather and sea conditions permitting. Raw survey data includes species level abundance estimates.
Registros de Dados
Os dados deste recurso de evento de amostragem foram publicados como um Darwin Core Archive (DwC-A), que é o formato padronizado para compartilhamento de dados de biodiversidade como um conjunto de uma ou mais tabelas de dados. A tabela de dados do núcleo contém 26.447 registros.
Também existem 2 tabelas de dados de extensão. Um registro de extensão fornece informações adicionais sobre um registro do núcleo. O número de registros em cada tabela de dados de extensão é ilustrado abaixo.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Versões
A tabela abaixo mostra apenas versões de recursos que são publicamente acessíveis.
Como citar
Pesquisadores deveriam citar esta obra da seguinte maneira:
Coral Reef Ecosystem Program; Pacific Islands Fisheries Science Center (2017). Pacific Reef Assessment and Monitoring Program: Rapid Ecological Assessments of Fish Belt Transect Surveys (BLT) in the Pacific Ocean from 2000-09-09 to 2009-05-05 (NCEI Accession 0162462). NOAA National Centers for Environmental Information. Dataset. https://accession.nodc.noaa.gov/0162462
Direitos
Pesquisadores devem respeitar a seguinte declaração de direitos:
O editor e o detentor dos direitos deste trabalho é United States Geological Survey. To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.
GBIF Registration
Este recurso foi registrado no GBIF e atribuído ao seguinte GBIF UUID: 89a2cd92-b5e0-44da-862b-968e12e1036f. United States Geological Survey publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por GBIF-US.
Palavras-chave
Samplingevent; Samplingevent
Contatos
- Originador
- Research Fish Biologist
- Provedor Dos Metadados
- Data Steward
- Ponto De Contato
- Supervisory Coral Reef Ecosystems Researcher
- Ponto De Contato
- Marine Ecosystems Research Specialist
http://orcid.org/0000-0002-4391-107X
Metadados Adicionais
marine, harvested by OBIS These data were named with "NCRMP" in the OBIS shortname, when it is actually pre-NCRMP data. The creators of the data, PIFSC, wanted to make that correction, but after the data are submitted the shortname cannot change. The BLT transects were conducted under CRED using older methods before NCRMP was fully formed.
| Identificadores alternativos | 89a2cd92-b5e0-44da-862b-968e12e1036f |
|---|---|
| https://www1.usgs.gov/obis-usa/ipt/resource?r=ncrmp_blt_fish_pacific |