Humpback whale sightings around New Zealand 1970-1999

最新版本 由 Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node 發佈於 Dec 19, 2019 Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node

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).

Data Records

The data in this 出現紀錄 resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 152 records.

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.

下載

下載最新版本的Darwin Core Archive (DwC-A)資源,或資源元數據的EML或RTF文字檔。

DwC-A資料集 下載 152 紀錄 在 English 中 (10 KB) - Update frequency: 無計畫更新
元數據EML檔 下載 在 English 中 (8 KB)
元數據RTF文字檔 下載 在 English 中 (9 KB)

版本

The table below shows only published versions of the resource that are publicly accessible.

如何引用

研究者應依照以下指示引用此資源。:

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

Rights

研究者應尊重以下權利聲明。:

The publisher and rights holder of this work is Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

GBIF 註冊

此資源已向GBIF註冊,並指定以下之GBIF UUID: 7d122ae7-ef18-42a7-a0d4-bf4540826dbc。  Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node 發佈此資源,並經由Ocean Biogeographic Information System同意向GBIF註冊成為資料發佈者。

關鍵字

Occurrence; Observation

聯絡資訊

資源建立者:

Nadine Gibbs
Researcher
Department of Conservation P.O. Box 10-420 Wellington NZ

可回覆此資源相關問題者:

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

元數據填寫者:

Nadine Gibbs
Researcher
Department of Conservation P.O. Box 10-420 Wellington NZ

地理涵蓋範圍

New Zealand EEZ

界定座標範圍 緯度南界 經度西界 [-49, 165], 緯度北界 經度東界 [-34, 180]

分類群涵蓋範圍

Humpback whale

Species  Megaptera novaeangliae (Humpback whale)

時間涵蓋範圍

起始日期 / 結束日期 1970-01-01 / 1999-12-31

取樣方法

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.

研究範圍 New Zealand EEZ

方法步驟描述:

  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).

額外的元數據

marine, harvested by iOBIS

替代的識別碼 https://nzobisipt.niwa.co.nz/resource?r=nzhumpbacks