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

Dernière version Publié par Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node le 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).

Enregistrements de données

Les données de cette ressource occurrence ont été publiées sous forme d'une Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant qu'ensemble d'un ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 326 enregistrements.

Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées des ressources sont disponibles au téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.

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Versions

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Comment citer

Les chercheurs doivent citer cette ressource comme suit:

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

Droits

Les chercheurs doivent respecter la déclaration de droits suivante:

L’éditeur et détenteur des droits de cette ressource est Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

Enregistrement GBIF

Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : 48374879-e066-4ff0-8b8e-c7c56d53926b.  Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du Ocean Biogeographic Information System.

Mots-clé

Occurrence; Observation

Contacts

Personne ayant créé cette ressource:

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

Personne pouvant répondre aux questions sur la ressource:

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

Personne ayant renseigné les métadonnées:

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

Couverture géographique

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

Enveloppe géographique Sud Ouest [-37.32, 176.22], Nord Est [-37.25, 176.3]

Couverture temporelle

Date de début / Date de fin 1993-03-01 / 1993-04-30

Méthodes d'échantillonnage

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.

Etendue de l'étude Mayor Island (Tuhua)

Description des étapes de la méthode:

  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.

Citations bibliographiques

  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.

Métadonnées additionnelles

marine, harvested by iOBIS

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