Benthic megafauna of the western Clarion-Clipperton Zone, Pacific Ocean from the DeepCCZ project, 2018

Событие Наблюдение
Последняя версия опубликовано Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node июл. 24, 2026 Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node
Дата публикации:
24 июля 2026 г.
Лицензия:
CC-BY 4.0

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Описание

There is a growing interest in the exploitation of deep-sea mineral deposits, particularly on the abyssal seafloor of the central Pacific Clarion-Clipperton Zone (CCZ), which is rich in polymetallic nodules. In order to effectively manage potential exploitation activities, a thorough understanding of the biodiversity, community structure, species ranges, connectivity, and ecosystem functions across a range of scales is needed. The benthic megafauna plays an important role in the functioning of deep-sea ecosystems and represents an important component of the biodiversity. While megafaunal surveys using video and still images have provided insight into CCZ biodiversity, the collection of faunal samples is needed to confirm species identifications to accurately estimate species richness and species ranges, but faunal collections are very rarely carried out. Using a Remotely Operated Vehicle, 55 specimens of benthic megafauna were collected from seamounts and abyssal plains in three Areas of Particular Environmental Interest (APEI 1, APEI 4, and APEI 7) at 3100–5100 m depth in the western CCZ. Using both morphological and molecular evidence, 48 different morphotypes belonging to five phyla were found, only nine referrable to known species, and 39 species potentially new to science. This work highlights the need for detailed taxonomic studies incorporating genetic data, not only within the CCZ, but in other bathyal, abyssal, and hadal regions, as representative genetic reference libraries that could facilitate the generation of species inventories.

Записи данных

Данные этого находка 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 55 записей.

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Версии

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Как оформить ссылку

Исследователи должны дать ссылку на эту работу следующим образом:

Bribiesca-Contreras G, Dahlgren T, Amon D, Cairns S, Drennan R, Durden J, Eléaume M, Hosie A, Kremenetskaia A, McQuaid K, O'Hara T, Rabone M, Simon-Lledó E, Smith C, Watling L, Wiklund H, Glover A (2026). Benthic megafauna of the western Clarion-Clipperton Zone, Pacific Ocean from the DeepCCZ project, 2018. Version 1.0. Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node. Occurrence dataset. https://nzobisipt.niwa.co.nz/resource?r=deepccz_benthic&v=1.0

Права

Исследователи должны соблюдать следующие права:

Публикующей организацией и владельцем прав на данную работу является Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node. Эта работа находится под лицензией Creative Commons Attribution (CC-BY 4.0).

Регистрация в GBIF

Этот ресурс не был зарегистрирован в GBIF

Ключевые слова

Occurrence; Observation

Контакты

Guadalupe Bribiesca-Contreras
  • Metadata Provider ●
  • Originator ●
  • Point Of Contact
Life Sciences Department, Natural History Museum
London
GB
Thomas Dahlgren
  • Originator
University of Gothenburg, Gothenburg, Sweden Norwegian Research Centre, NORCE
Bergen
NO
Diva Amon
  • Originator
SpeSeas, D’Abadie
TT
Stephen Cairns
  • Originator
National Museum of Natural History, Smithsonian Institution
Washington DC
US
Regan Drennan
  • Originator
Life Sciences Department, Natural History Museum
London
GB
Jennifer Durden
  • Originator
National Oceanography Centre
Southhampton
GB
Marc Eléaume
  • Originator
Départment Origines et Évolution, Muséum national d’Histoire Naturelle
Paris
FR
Andrew Hosie
  • Originator
Collections & Research, Western Australia Museum
Perth
AU
Antonina Kremenetskaia
  • Originator
Shirshov Institute of Oceanology, Russian Academy of Sciences
Moscow
RU
Kirsty McQuaid
  • Originator
University of Plymouth
Plymouth
GB
Timothy O'Hara
  • Originator
Museums Victoria
Melbourne
AU
Muriel Rabone
  • Originator
Life Sciences Department, Natural History Museum
London
GB
Erik Simon-Lledó
  • Originator
National Oceanography Centre
Southampton
GB
Craig Smith
  • Originator
University of Hawai’i at Mānoa
Honolulu
US
Les Watling
  • Originator
University of Hawai’i at Mānoa
Honolulu
US
Helena Wiklund
  • Originator
University of Gothenburg
Gothenburg
SE
Adrian Glover
  • Originator
Life Sciences Department, Natural History Museum
London
US

Географический охват

Clarion-Clipperton Zone

Ограничивающие координаты Юг Запад [4,888, -153,744], Север Восток [11,295, -141,681]

Временной охват

Дата начала / Дата окончания 2018-05-25 / 2018-06-10

Методы сбора

Specimens were selected from across as many taxonomic groups as possible, with duplicates of similar morphotypes avoided; thus, the aim was to increase our understanding of megafaunal diversity. A total of 55 specimens were collected during different dives in three APEIs and three different geoforms (abyssal plain, seamount, and seamount slope), 14 specimens were collected from abyssal seafloor in APEI 1; 13 from abyssal seafloor, two from the seamount slope and six from a seamount in APEI 4; and nine from abyssal seafloor and 11 from a seamount in APEI 7. In situ photographs and/or video frame grabs of each specimen were captured, with parallel lasers for scale at 15 cm spacing. Megafaunal specimens were collected with the manipulator (‘Orion’), suction sampler, or push cores, depending on the characteristics of each specimen in order to best preserve morphological characters. Specimens collected with the manipulator were placed into the biobox receptacle, while those collected with the suction sampler were stored in a suction box. Collection data were recorded at the time of capture (e.g., date and time, ROV latitude/longitude, seabed water depth, ROV waypoint name).

Охват исследования Clarion-Clipperton Zone

Описание этапа методики:

  1. After ROV recovery, specimens were transferred and maintained in cold (2–4 °C), filtered seawater until processed. Following Glover et al. (2015), all specimens were photographed, given a preliminary identification and assigned a unique voucher code (e.g., CCZ_020). A tissue sample was taken from each specimen for downstream molecular analyses, and stored in 95% non-denatured ethanol at -20 °C. Specimens were fixed in 10% borax-buffered formalin and transferred to 70% non-denatured ethanol after 48 h, except for sponges, which were kept frozen at -80 °C. After the expedition, specimens and tissue sub-samples were sent to the University of Hawai’i Manoa. Specimens were archived at the Natural History Museum, London (NHMUK), and the Western Australian Museum (WAM), following taxonomic inspection.

Библиографические ссылки

  1. Bribiesca-Contreras G, Dahlgren TG, Amon DJ et al. Benthic megafauna of the western Clarion-Clipperton Zone, Pacific Ocean. ZooKeys 2022;1113:1–110. 10.3897/zookeys.1113.82172 https://doi.org/10.3897/zookeys.1113.82172

Дополнительные метаданные

marine, harvested by iOBIS

Благодарности