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

Registro biológico Observación
Última versión publicado por Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node el jul 24, 2026 Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node
Fecha de publicación:
24 de julio de 2026
Licencia:
CC-BY 4.0

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Descripción

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.

Registros

Los datos en este recurso de registros biológicos han sido publicados como Archivo Darwin Core(DwC-A), el cual es un formato estándar para compartir datos de biodiversidad como un conjunto de una o más tablas de datos. La tabla de datos del core contiene 55 registros.

Este IPT archiva los datos y, por lo tanto, sirve como repositorio de datos. Los datos y los metadatos del recurso están disponibles para su descarga en la sección descargas. La tabla versiones enumera otras versiones del recurso que se han puesto a disposición del público y permite seguir los cambios realizados en el recurso a lo largo del tiempo.

Versiones

La siguiente tabla muestra sólo las versiones publicadas del recurso que son de acceso público.

¿Cómo referenciar?

Los usuarios deben citar este trabajo de la siguiente manera:

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

Derechos

Los usuarios deben respetar los siguientes derechos de uso:

El publicador y propietario de los derechos de este trabajo es Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node. Esta obra está bajo una licencia Creative Commons de Atribución/Reconocimiento (CC-BY 4.0).

Registro GBIF

Este recurso no ha sido registrado en GBIF

Palabras clave

Occurrence; Observation

Contactos

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

Cobertura geográfica

Clarion-Clipperton Zone

Coordenadas límite Latitud Mínima Longitud Mínima [4,888, -153,744], Latitud Máxima Longitud Máxima [11,295, -141,681]

Cobertura temporal

Fecha Inicial / Fecha Final 2018-05-25 / 2018-06-10

Métodos de muestreo

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).

Área de Estudio Clarion-Clipperton Zone

Descripción de la metodología paso a paso:

  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.

Referencias bibliográficas

  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

Metadatos adicionales

marine, harvested by iOBIS

Agradecimientos