Protected species bycatch in New Zealand fisheries

Последняя версия опубликована Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node Feb 12, 2020 Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node

Seabirds, marine mammals, and turtles are caught during commercial fishing operations within the New Zealand Exclusive Economic Zone. In order to monitor the impacts of fishing on these species, New Zealand government observers on fishing vessels record any protected species bycatch incidents that occur. Observer data on protected species captures are maintained by the Ministry for Primary Industries, with identification of captured animals carried out by the Department of Conservation. The data have been summarised in a series of reports, with the most recent report covering the period from 2002–03 to the end of the 2008–09 fishing year (Abraham and Thompson 2011b).

This dataset provides a summary of protected species bycatch in trawl and longline fisheries, from the 2002–03 to 2012–13 fishing year (fishing years run from October 1 to September 30).

Observers are only present on some fishing vessels. To estimate total captures in a fishery, it is necessary to use statistical methods to extrapolate from the observed fishing to the unobserved fishing. The total observable captures are an estimate of the captures that would have been reported, had observers been present on all fishing vessels. There may be additional mortalities (such as birds that are struck by fishing gear but not brought on board the vessel) that are not recorded by observers. These are referred to as ‘cryptic mortalities’ and are not included in the estimates of total captures, nor is there any evaluation of potential survival of seabirds recorded as captured but subsequently released alive. The methods used for the estimation follow those described in technical reports on bycatch estimation for seabirds (Abraham and Thompson 2011a, Abraham et al. 2013), and marine mammals (Thompson et al. 2013).

####Notes about some Fields: - **fishing_year** the fishing year of the capture. Fishing years run from 1 October to 30 September; - **datetime** the date and time of the capture. All times are in New Zealand Standard Time (GMT+12); - **status** whether the animal was alive or dead; - **identification** how the identification was made (necropsy: by necropsy of the dead animal; photograph: from an expert inspection of a photograph of the capture; imputation: imputed by correcting the observer code using necropsy and photographic identifications of other captures with the same observer identification; as reported by the observer); - **method** the fishing method (surface longline; bottom longline; trawl; set net; or purse seine); - **target** the target species reported by the fisher; - **vessel_size** the length class of the vessel (a range in m).

Записи данных

Данные этого occurrence ресурса были опубликованы в виде Darwin Core Archive (DwC-A), который является стандартным форматом для обмена данными о биоразнообразии в виде набора из одной или нескольких таблиц. Основная таблица данных содержит 10,307 записей.

Данный экземпляр IPT архивирует данные и таким образом служит хранилищем (репозиторием) данных. Данные и метаданные ресурсов доступны для скачивания в разделе Загрузки. Перечень версий служит для отображения истории публикации версий данного ресурса.

Загрузки

Скачайте последнюю версию данных этого ресурса в формате Darwin Core Archive (DwC-A) или метаданных ресурса в форматах EML или RTF:

Данные в формате DwC-A Скачать 10,307 Записи в English (445 KB) - Частота обновления: irregular
Метаданные в формате EML Скачать в English (11 KB)
Метаданные в формате RTF Скачать в English (10 KB)

Версии

В таблице ниже указаны только опубликованные версии ресурса, которые доступны для свободного скачивания.

Как оформить ссылку

Исследователи должны дать ссылку на эту работу следующим образом:

Abraham E R, Thompson F N (2016): Protected species bycatch in New Zealand fisheries. v1.6. Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node. Dataset/Occurrence. https://nzobisipt.niwa.co.nz/resource?r=protected_species_bycatch_nz&v=1.6

Права

Исследователи должны соблюдать следующие права:

Публикующей организацией и владельцем прав на данную работу является Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node. Crown copyright ©. Copyright material on the Protected Species Captures website is protected by copyright owned by the Ministry for Primary Industries on behalf of the Crown. Unless indicated otherwise for specific items or collections of content (either below or within specific items or collections), this copyright material is licensed for re-use under a Creative Commons Attribution (CC-BY) 4.0 License. In essence, you are free to copy, distribute and adapt the material, as long as you attribute it to Ministry for Primary Industries and abide by the other licence terms.

Регистрация в GBIF

Этот ресурс был зарегистрирован в GBIF, ему был присвоен следующий UUID: f55751e3-ac05-4f11-b70f-7b81cb397452.  Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node отвечает за публикацию этого ресурса, и зарегистрирован в GBIF как издатель данных при оподдержке Ocean Biogeographic Information System.

Ключевые слова

Occurrence; Observation

Контакты

Кто является создателем ресурса:

E. R. Abraham
CEO
Dragonfly Data Science PO Box 27535 6141 Wellington New Zealand NZ
http://www.dragonfly.co.nz/
F. N. Thompson
co-author
Dragonfly Data Science PO Box 27535 6141 Wellington NZ
http://www.dragonfly.co.nz/

Кто может ответить на вопросы о ресурсе:

Edward Abraham
CEO
Dragonfly Data Science PO Box 27535 6141 Wellington New Zealand NZ
http://www.dragonfly.co.nz/

Кем заполнены метаданные:

Edward Abraham
CEO
Dragonfly Data Science PO Box 27535 6141 Wellington New Zealand NZ
http://www.dragonfly.co.nz/

Кто еще связан с данным ресурсом:

User
Kevin Mackay

Географический охват

New Zealand Exclusive Economic Zone

Ограничивающие координаты Юг Запад [-57, -165], Север Восток [-24, 157]

Временной охват

Дата начала / Дата окончания 2002-10-01 / 2016-09-30

Библиографические ссылки

  1. Abraham E. R., Thompson F. N. (2014). Captures of turtles in trawl fisheries, in the New Zealand Exclusive Economic Zone, from 2002–03 to 2012–18. https://data.dragonfly.co.nz/psc/v20140201/turtles/trawl/all-vessels/eez/all/
  2. Abraham E. R., Thompson F. N. (2014). Captures of all birds in trawl fisheries, in the New Zealand Exclusive Economic Zone, from 2002–03 to 2012–18. https://data.dragonfly.co.nz/psc/v20140201/birds/trawl/all-vessels/eez/all/
  3. Abraham E. R., Thompson F. N. (2014). Captures of whales and dolphins in trawl fisheries, in the New Zealand Exclusive Economic Zone, from 2002–03 to 2012–18. https://data.dragonfly.co.nz/psc/v20140201/whales-and-dolphins/trawl/all-vessels/eez/all/
  4. Abraham E. R., Thompson F. N. (2014). Captures of New Zealand sea lion in trawl fisheries, in the New Zealand Exclusive Economic Zone, from 2002–03 to 2012–18. https://data.dragonfly.co.nz/psc/v20140201/new-zealand-sea-lion/trawl/all-vessels/eez/all/
  5. Abraham E. R., Thompson F. N. (2014). Captures of New Zealand fur seal in trawl fisheries, in the New Zealand Exclusive Economic Zone, from 2002–03 to 2012–18. https://data.dragonfly.co.nz/psc/v20140201/new-zealand-fur-seal/trawl/all-vessels/eez/all/
  6. Abraham E. R., Thompson F. N. (2014). Captures of other seals in trawl fisheries, in the New Zealand Exclusive Economic Zone, from 2002–03 to 2012–18. https://data.dragonfly.co.nz/psc/v20140201/other-seals/trawl/all-vessels/eez/all/

Дополнительные метаданные

marine, harvested by iOBIS

Альтернативные идентификаторы f55751e3-ac05-4f11-b70f-7b81cb397452
https://nzobisipt.niwa.co.nz/resource?r=protected_species_bycatch_nz