Humpback whale sightings around New Zealand 1970-1999

Nadine Gibbs, Department of Conservation;Simon Childerhouse, Department of Conservation

Dataset credit

OBIS and SWP OBIS

Contacts

RoleNameOrganization 
Primary contact Nadine Gibbs Department of Conservation N/A
Primary contact Simon Childerhouse Department of Conservation N/A

Citation

Gibbs, N; Childerhouse, S., 2000. Data from: Humpback whales around New Zealand. Conservation Advisory Science Notes No. 257,Department of Conservation, Wellington
Gibbs, N and S. Childerhouse. 2020. Humpback whale sightings around New Zealand 1970-1999. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/103152387) on yyyy-mm-dd and originated from OBIS (https://obis.org/dataset/2dc8ac96-9909-49e7-b003-29a0c6fdcf93)

Abstract

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).

Purpose

N/A

Supplemental information

This dataset was downloaded from OBIS (https://obis.org/). The records for only marine mammals, seabirds, sea turtles and rays and sharks were extracted. Records with no longitude/latitude or no date (eventDate) were excluded.
OBIS dataset page:
https://obis.org/dataset/2dc8ac96-9909-49e7-b003-29a0c6fdcf93
Data Provider's dataset page:
https://nzobisipt.niwa.co.nz/resource?r=nzhumpbacks

References

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

Attributes

Overview

This section explains attributes included in the original dataset. OBIS-SEAMAP restricts the attributes available to the public to date/time, lat/lon and species names/counts only. Should you need other attributes described here, you are encouraged to contact the data provider.

Attributes described below represent those in the original dataset provided by the provider.
All attributes are included in the downloadable file (CSV or ESRI File Geodatabase) for "Complete Set of Dataset".

Attributes in dataset

Attribute (table column)Description
oidInternal ID
idRecord ID
dataset_idDataset ID
scientificnameScientific name
vernacularnameVernacular name
aphiaidAphia ID
taxonranktaxononic rank
individualcountGroup size / individual count
eventdateEvent date (precision varies)
eventtimeEvent time
decimallatitudeLatitude in decimal degrees
decimallongitudeLongitude in decimal degrees
coordinateprecisionCoordinate precision
catalognumberCatalog number
collectioncodeCollection code
occurrencestatusOccurrence status
basisofrecordBasis of record (HumanObservation / MachineObservation)
modifiedDate/time the record was modified
node_idNode ID
occurrenceidOccurrence ID
occurrenceremarksOccurrence remarks
eventidEvent ID
institutioncodeInstitution code
lifestageLife stage
sexGender of the animal if known
speciesSpecies by provider
datasetidDataset ID by provider
countryCountry
localityLocation of ocean
waterbodyDetails of ocean
droppedFlag indicating the record was dropped (always false)
absenceFlag indicating the record represents the absence of the species (always false)
marineFlag indicating the record is for marine life (always true)
OBIS-SEAMAP ID103152387
Seabirds0
Marine mammals152
Sea turtles0
Rays and sharks0
Other species0
Non spatial0
Non species0
Total152
Date, Begin1970-01-13
Date, End1999-09-18
Temporal prec.110000
Latitude-48.00 - -35.05
Longitude164.50 - 178.32
Coord. prec.6 decimal digits
PlatformVarious
Data typeAnimal sighting
EffortN/A
Traveled (km)0
0
Contr. throughiOBIS
Registered2020-06-30
Updated2021-02-05
StatusPublished
Sharing policy CC-BY (All)
Also available in None
See metadata in static HTML
See metadata in FGDC XML
See download history / statistics