Killer whale (Orcinus orca) predation on dusky dolphins (Lagenorhynchus obscurus) in Kaikoura, New Zealand

Occurrence Observation
Versão mais recente published by Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node on jul. 24, 2024 Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node

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Descrição

Killer whales (Orcinus orca) are known to prey on a wide variety of marine mammal species, including large and small cetaceans, as well as pinnipeds (Jefferson et al. 1991). No well-documented records of killer whales feeding on dusky dolphins (Lagenorhynchus obscurus) have been reported in the literature. Wursig and Wursig (1980) reported one second-hand account of pre-dation on dusky dolphins off Peninsula Valdes, Argentina. Accounts of killer whales preying on other species in the genus Lagenorhynchus are also infrequent (Dahlheim and Towel1 1994), especially given that these animals are both regularly observed in similar habitats. We present accounts of four killer whales preying on dusky dolphins over a period of 11 d off Kaikoura, New Zealand (42°25'S, 173°42'E).

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 18 registros.

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Versões

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Como citar

Pesquisadores deveriam citar esta obra da seguinte maneira:

Constantine R, Visser I, Buurman D, Buurman R, McFadden B (2024). Killer whale (Orcinus orca) predation on dusky dolphins (Lagenorhynchus obscurus) in Kaikoura, New Zealand. Version 1.0. Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node. Occurrence dataset. https://nzobisipt.niwa.co.nz/resource?r=nz_orca_dusky&v=1.0

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: 8d79909b-f99e-4bb1-a007-d5a78524bf88.  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

Rochelle Constantine
  • Provedor Dos Metadados
  • Originador
  • Ponto De Contato
  • Researcher
School of Biological Sciences, University of Auckland
  • Private Bag 92019
Auckland
NZ
Ingrid Visser
  • Originador
  • Researcher
School of Environmental and Marine Sciences, University of Auckland
  • Private Bag 92019
Auckland
NZ
Dennis Buurman
  • Originador
  • Researcher
Dolphin Encounter
  • 68 West End
Kaikoura
NZ
Rik Buurman
  • Originador
  • Researcher
Dolphin Encounter
  • 68 West End
Kaikoura
NZ
Brent McFadden
  • Originador
  • Researcher
New Zealand Sea Adventures
  • Beach Road
Kaikoura
NZ
Kevin Mackay

Cobertura Geográfica

Kaikoura, New Zealand

Coordenadas delimitadoras Sul Oeste [-42,7, 173,533], Norte Leste [-42,4, 173,85]

Cobertura Taxonômica

Killer whales and dusky dolphins

Espécie Orcinus orca (Killer whale), Lagenorhynchus obscurus (Dusky dolphin)

Cobertura Temporal

Data Inicial / Data final 1995-11-04 / 1995-11-14

Métodos de Amostragem

The attacks by killer whales reported here were observed during research surveys and commercial swim-with-wild-dolphin tours operating out of Kaikoura.

Área de Estudo Kaikoura, New Zealand

Descrição dos passos do método:

  1. During four days, between 4 and 14 November 1995, four adult killer whales (two males and two females) were observed to chase, and on seven occasions kill, dusky dolphins (Table 1). The four killer whales involved were first photo identified in the Kaikoura area in 1988 using their saddle patches and nicks on their dorsal fins. They have been photo identified near Kaikoura on a number of occasions since then. The animals are referred to in this report by their catalog numbers: NZ 39 (female), NZ 40 (male), NZ 41 (male), and NZ 42 (female).

Citações bibliográficas

  1. Constantine, R., Visser, I., Buurman, D., Buurman, R. and McFadden, B. (1998), KILLER WHALE (ORCINUS ORCA) PREDATION ON DUSKY DOLPHINS (LAGENORHYNCHUS OBSCURUS) IN KAIKOURA, NEW ZEALAND. Marine Mammal Science, 14: 324-330. https://doi.org/10.1111/j.1748-7692.1998.tb00721.x

Metadados Adicionais

marine, harvested by iOBIS