Humpback whale sightings around New Zealand 1970-1999

Occurrence Observation
Versão mais recente published by Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node on dez. 19, 2019 Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node
Publication date:
19 de dezembro de 2019
Licença:
CC-BY 4.0

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Descrição

Humpback whales were almost taken to extinction by intensive whaling activities during the past century. In Area V, an original population of approximately 10 000 humpbacks at the beginning of the century had been reduced to less than 5%, or estimated 250-500 whales of the original population(Chittleborough 1965). Humpbacks were given total protection from commercial whaling by the International Whaling Commission (IWC) in 1966 and presently have an International Union for Conservation of Nature (IUCN) status of Vulnerable (Donoghue 1994). Although protected, subsistence hunting of humpbacks continued in Tonga until 1979 when whaling was prohibited by Royal Decree; and in Antarctica by illegal Russian whaling of approximately 47 000 humpbacks, which continued until the 1980s (Donoghue 1994,Yablokov 1994).While some humpback whale populations have been widely studied, others including the population that migrates along the New Zealand coast are little known since the cessation of commercial whaling. Following the closure of Tory Channel whaling station in 1964, humpbacks have rarely been sighted in New Zealand waters (Helweg et al. 1999), suggesting that this migratory population has not shown any significant recovery, although Cawthorn (1997) reported an apparent increase in New Zealand waters. Due to the differences in population structure between areas, knowledge derived from one ocean or population cannot easily be applied to others.This dataset represents a compilation of all sightings of humpback whales around New Zealand within the Exclusive Economic Zone (EEZ).

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 152 registros.

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:

Gibbs, N; Childerhouse, S., 2000. Data from: Humpback whales around New Zealand. Conservation Advisory Science Notes No. 257,Department of Conservation, Wellington

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: 7d122ae7-ef18-42a7-a0d4-bf4540826dbc.  Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por Ocean Biodiversity Information System.

Palavras-chave

Occurrence; Observation

Contatos

Nadine Gibbs
  • Ponto De Contato
  • Researcher
Department of Conservation
  • P.O. Box 10-420
Wellington
NZ
Nadine Gibbs
  • Ponto De Contato
Department of Conservation
NZ
Simon Childerhouse
  • Ponto De Contato
  • Researcher
Department of Conservation
  • P.O. Box 10-420
Wellington
NZ

Cobertura Geográfica

New Zealand EEZ

Coordenadas delimitadoras Sul Oeste [-49, 165], Norte Leste [-34, 180]

Cobertura Taxonômica

Humpback whale

Espécie Megaptera novaeangliae (Humpback whale)

Cobertura Temporal

Data Inicial / Data final 1970-01-01 / 1999-12-31

Métodos de Amostragem

Collation of sighting information was achieved through detailed literature searches of published and unpublished work and contacting people through phone interviews and email. These sources included: (1) existing sighting sheets from relevant Department of Conservation (DOC) conservancies/field centres and Ministry of Fisheries scientific observers; (2) vessel log books from fishermen; (3) whale-watching tour operators and commercial spotter plane pilots; (4) whale researchers; (5) public; (6) media reports; (7) whale stranding records from Te Papa/Museum of New Zealand; (8) published papers and reports.

Área de Estudo New Zealand EEZ

Descrição dos passos do método:

  1. All the sighting information that was collected was entered into an MS Excel spreadsheet and analysed to determine: (1) locations of sightings; (2) date and seasonality of sightings; (3) composition of sightings (i.e. singles, groups, cow-calf pairs), (4) common behavior states (i.e. feeding, traveling, nursing, surface active).

Citações bibliográficas

  1. https://www.doc.govt.nz/globalassets/documents/science-and-technical/cas287a.pdf
  2. https://www.doc.govt.nz/globalassets/documents/science-and-technical/cas287.pdf

Metadados Adicionais

marine, harvested by iOBIS

Identificadores alternativos https://nzobisipt.niwa.co.nz/resource?r=nzhumpbacks