Fish distribution data, Mayor Is. (Tuhua) marine reserve 1993

Versão mais recente publicado por Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node em Dec 27, 2019 Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node

The Mayor Island (Tuhua) marine reserve was created in January 1993. A pre-reserve survey had already compiled algae, invertebrate, and fish species lists, with distributional data and habitat descriptions (Jones & Garrick 1991). They recorded a total of 54 fish species and presented the relative abundances of each. These data were essential for site selection and replication in the present survey,which was undertaken in March/April 1993, only 3 months after the reserve was established. Fieldwork for the present survey was undertaken by Department of Conservation (Bay of Plenty Conservancy) and NIWA-Oceanographic staff, as well as 2nd-year marine biology students from the Bay of Plenty Polytechnic. It was designed to provide background data on numbers of fish species present, numbers of individuals, their distribution within sites and depth, and to ascertain whether there were differences between "reserve" and "control" sites. These data would then be available for comparisons with those obtained after the reserve had been in place for some time, and would provide assistance for reserve management as well as the wider scientific questions recently outlined by Rowley (1992) on whether marine reserves act as spillover areas to enhance fisheries adjacent to their boundaries.

Only the presence data is presented in this dataset. The analysis of the fish length data is given in the final report by Grange (1993).

Registros de Dados

Os dados deste recurso de ocorrência 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 326 registros.

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Versões

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Como citar

Pesquisadores deveriam citar esta obra da seguinte maneira:

Grange K (2019): Fish distribution data, Mayor Is. (Tuhua) marine reserve 1993. v1.1. Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node. Dataset/Occurrence. https://nzobisipt.niwa.co.nz/resource?r=mayorisfishes&v=1.1

Direitos

Pesquisadores devem respeitar a seguinte declaração de direitos:

O editor e o detentor dos direitos deste trabalho é Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

GBIF Registration

Este recurso foi registrado no GBIF e atribuído ao seguinte GBIF UUID: 48374879-e066-4ff0-8b8e-c7c56d53926b.  Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por Ocean Biogeographic Information System.

Palavras-chave

Occurrence; Observation

Contatos

Quem criou esse recurso:

Ken Grange
Principal Scientist
National Institute of Water and Atmospheric Research P.O. Box 14-901 Wellington NZ

Quem pode responder a perguntas sobre o recurso:

Ken Grange
Principal Scientist
National Institute of Water and Atmospheric Research P.O. Box 14-901 Wellington NZ

Quem preencher os metadados:

Ken Grange
Principal Scientist
National Institute of Water and Atmospheric Research P.O. Box 14-901 Wellington NZ

Cobertura Geográfica

Mayor Island (Tuhua), Bay of Plenty, New Zealand

Coordenadas delimitadoras Sul Oeste [-37.32, 176.22], Norte Leste [-37.25, 176.3]

Cobertura Temporal

Data Inicial / Data final 1993-03-01 / 1993-04-30

Métodos de Amostragem

Based on the previous survey (Jones & Garrick 1991), sites around Tuhua were chosen to cover most of the expected habitats both within and outside the reserve. Sites within the reserve were paired with controls outside, based on similar habitat descriptions, slope,exposure, algal cover, and substrate.

Área de Estudo Mayor Island (Tuhua)

Descrição dos passos do método:

  1. At each site, 2 sets of transects were sampled, stratified by depth. Within each depth zone (which depended primarily on available habitat), 3 (occasionally 4) randomly placed replicate 50m x 10m transects were swum by two divers. A very small number of transects were sampled as 25m x 10m; counts for these were scaled before analysis.All fish seen were identified, counted, and their lengths estimated. Pairs of divers were continually rotated throughout the survey to reduce observer bias, and all personnel involved in fish counts practiced estimating sizes of plastic fishes underwater before commencing the quantitative counts.

Citações bibliográficas

  1. Grange, KR., 1993. An analysis of fish abundance and distribution data, Mayor Is. (Tuhua) marine reserve baseline survey, 1993. Conservation Advisory Science Notes No. 40, Department of Conservation,Wellington. 34p.

Metadados Adicionais

marine, harvested by iOBIS

Identificadores alternativos 48374879-e066-4ff0-8b8e-c7c56d53926b
https://nzobisipt.niwa.co.nz/resource?r=mayorisfishes