SAMPLINGEVENT

Pelorus Sound / Te Hoiere (HS66) Hydrographic Survey Marine Mammal Observations

Versão mais recente publicado por The National Institute of Water and Atmospheric Research (NIWA) em 21 de Dezembro de 2021 The National Institute of Water and Atmospheric Research (NIWA)
Discovery Marine Ltd (DML) and iXBlue were contracted in 2019 by Land Information New Zealand (LINZ) to undertake hydrographic surveying services for the Pelorus Sound / Te Hoiere Hydrographic Survey (HS66).... Mais

Descrição

Discovery Marine Ltd (DML) and iXBlue were contracted in 2019 by Land Information New Zealand (LINZ) to undertake hydrographic surveying services for the Pelorus Sound / Te Hoiere Hydrographic Survey (HS66).

Marine mammals, in particular dolphins are a regular occurrence in the Marlborough Sounds. The species are important both nationally and internationally. There are eight marine mammal species known to frequent the Sounds (Davidson et al., 2011). Two of these are classified as nationally endangered (Hectors and Bottlenose) and one is considered nationally critical (Killer whale or Orca).

DML and iXBlue were contracted to map the seabed in the Marlborough Sounds (Pelorus Sound / Te Hoiere, Admiralty Bay and Te Aumiti (French Pass)) using multibeam sounders. The frequency of the sound emitted by a multibeam echo sounder is outside the hearing range of marine mammals in the Sounds, however as a precaution, best practice for minimising survey activities in the immediate proximity of marine mammals was used, including logging all sightings while on multibeam effort.

Mulitbeam operators and surveyors logged marine mammal sightings. Blue Planet Marine (BPM) was contracted prior to the Queen Charlotte Sound / Tōtaranui and Tory Channel / Kura Te Au Hydrographic Survey (HS51) in 2016/7 to provide a review of the potential efforts of a multibeam survey and make suggestions as to best practice to minimise disturbance. Overall they concluded the survey was in the category of ‘minimal disturbance’ hence not requiring a dedicated MMO onboard (Blue Planet Marine, 2016). This report also gave some recommendations, including survey teams to log sightings, that NIWA adopted in the survey plan used by DML and iXBlue.

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 61 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.

  • Event (core)
    61
  • ExtendedMeasurementOrFact 
    546
  • Occurrence 
    61

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.

Downloads

Baixe a última versão do recurso de dados, como um Darwin Core Archive (DwC-A) ou recurso de metadados, como EML ou RTF:

Dados como um arquivo DwC-A download 61 registros em English (12 kB) - Frequência de atualização: não plenejado
Metadados como um arquivo EML download em English (11 kB)
Metadados como um arquivo RTF download em English (11 kB)

Versões

A tabela abaixo mostra apenas versões de recursos que são publicamente acessíveis.

Como citar

Pesquisadores deveriam citar esta obra da seguinte maneira:

Davey N, Mackay K (2021): Pelorus Sound / Te Hoiere (HS66) Hydrographic Survey Marine Mammal Observations. v1.3. The National Institute of Water and Atmospheric Research (NIWA). Dataset/Samplingevent. https://nzobisipt.niwa.co.nz/resource?r=hs66_mmo&v=1.3

Direitos

Pesquisadores devem respeitar a seguinte declaração de direitos:

O editor e o detentor dos direitos deste trabalho é The National Institute of Water and Atmospheric Research (NIWA). 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: c023c854-3bc9-43af-af49-c2290b809710.  The National Institute of Water and Atmospheric Research (NIWA) publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por GBIF New Zealand.

Palavras-chave

Samplingevent; Samplingevent

Contatos

Quem criou esse recurso:

Niki Davey
Marine Mammal Observer
NIWA
P.O. Box 893
Nelson
NZ
Kevin Mackay
Principal Technician
NIWA
Private Bag 14-901
6022 Wellington
2721
NZ

Quem pode responder a perguntas sobre o recurso:

Niki Davey
Marine Mammal Observer
NIWA
P.O. Box 893
Nelson
NZ

Quem preencher os metadados:

Niki Davey
Marine Mammal Observer
NIWA
P.O. Box 893
Nelson
NZ

Quem mais foi associado com o recurso:

Usuário
Kevin Mackay

Cobertura Geográfica

Pelorus Sound / Te Hoiere, Admiralty Bay and French Pass. Marlborough Sounds, New Zealand

Coordenadas delimitadoras Sul Oeste [-41,089, 173,764], Norte Leste [-40,908, 174,076]

Cobertura Temporal

Data Inicial / Data final 2019-11-01 / 2020-07-25

Métodos de Amostragem

Marine Mammal Observations from a hydrographic multibeam survey

Área de Estudo Pelorus Sound / Te Hoiere, Admiralty Bay and French Pass. Marlborough Sounds, New Zealand
Controle de Qualidade The crew on board survey vessels underwent a briefing with NIWA’s senior experienced trained Marine Mammal Observer (MMO) Niki Davey. MMO sightings were matched against photography and WORMS for validation of species identification. Positions were plotted within a GIS to ensure geographic integrity

Descrição dos passos do método:

  1. The crew on board the survey vessels underwent a briefing with NIWA’s senior experienced trained Marine Mammal Observer (MMO) Niki Davey. Marine mammal observations and subsequent sightings are only required when the multibeam is in operation (on effort). However any opportunistic sightings made at any other time were encouraged to be recorded as well. During this meeting the crew were briefed in the following areas to ensure a rigorous as possible approach to recording marine mammal sightings is being taken: * Identification: An identification booklet outlining the features of the 8 important marine mammal species known in the Marlborough Sounds was provided to each vessel. This includes notes on fin shape, beak presence/absence, colouration and an indication of adult size. The species we can expect the crew to encounter are Bottlenose, Dusky, Hectors, common dolphins, and Killer (Orca), humpback, southern right whales. Also to be recorded was the New Zealand fur seal. * Logsheets: These were provided for the crew and covered the general areas of animal number and species, environment at sea, location and animal details. The priority fields included GPS location (of vessel when sighting made), species to best of ability, number of animals and whether a photo was taken. Each log sheet field was discussed during the briefing. * Photography: A camera was provided for the crew on the survey vessels. Images of the animals were encouraged when it was possible. Emphasis was made on beaks and fins. * Environmental: Laminated sheets covering the Beaufort scale was provided for additional information in the environmental section. * Observations: The crew were also briefed on the difficulties in spotting marine mammals up against a coastal back drop such as the Sounds and recommendations were to look using both the naked eye and with binoculars. Also vigilance was emphasised when the vessels enter bays and come around headlands. Also known areas of resident populations have been noted with extra vigilance encouraged here also. * Reporting: The logsheets were scanned and sent to the MMO on a weekly basis.

Metadados Adicionais

marine, harvested by iOBIS

Identificadores alternativos c023c854-3bc9-43af-af49-c2290b809710
https://nzobisipt.niwa.co.nz/resource?r=hs66_mmo