scholarly journals Abyssal fauna of polymetallic nodule exploration areas, eastern Clarion-Clipperton Zone, central Pacific Ocean: Annelida: Capitellidae, Opheliidae, Scalibregmatidae, and Travisiidae

ZooKeys ◽  
2019 ◽  
Vol 883 ◽  
pp. 1-82 ◽  
Author(s):  
Helena Wiklund ◽  
Lenka Neal ◽  
Adrian G. Glover ◽  
Regan Drennan ◽  
Muriel Rabone ◽  
...  
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Phylogenetic Analyses ◽  
Genetic Data ◽  
Ocean Basin ◽  
Central Pacific ◽  
Dna Taxonomy ◽  
Central Pacific Ocean ◽  
Polymetallic Nodule ◽  
The Uk

We present DNA taxonomy of abyssal polychaete worms from the eastern Clarion-Clipperton Zone (CCZ), central Pacific Ocean, using material collected as part of the Abyssal Baseline (ABYSSLINE) environmental survey cruises ‘AB01’ and ‘AB02’ to the UK Seabed Resources Ltd (UKSRL) polymetallic nodule exploration contract area ‘UK-1’, the Ocean Mineral Singapore exploration contract area ‘OMS-1’ and an Area of Particular Environmental Interest, ‘APEI-6’. This is the fourth paper in a series to provide regional taxonomic data with previous papers reporting on Cnidaria, Echinodermata and Mollusca. Taxonomic data are presented for 23 species from 85 records within four polychaete families: Capitellidae, Opheliidae, Scalibregmatidae and Travisiidae, identified by a combination of morphological and genetic data, including molecular phylogenetic analyses. Two taxa (genetically separated from one another) morphologically matched the same known cosmopolitan species,Ophelina abranchiatathat has a type locality in a different ocean basin and depth from where no genetic data was available. These two species were assigned the open nomenclature ‘cf.’ as a precautionary approach in taxon assignments to avoid over-estimating species ranges. Twelve (12) taxa are here described as new species,Ammotrypanella keenanisp. nov.,Ammotrypanella kerstenisp. nov.,Ophelina curlisp. nov.,Ophelina ganaesp. nov.,Ophelina juhazisp. nov.,Ophelina martinezarbizuisp. nov.,Ophelina meyeraesp. nov.,Ophelina nunnallyisp. nov.,Oligobregma brasieraesp. nov.,Oligobregma tanisp. nov.,Oligobregma whaleyisp. nov.andTravisia ziegleraesp. nov.For the remaining nine taxa, we have determined them to be potentially new species, for which we make the raw data, imagery and vouchers available for future taxonomic study. The CCZ is a region undergoing intense exploration for potential deep-sea mineral extraction from polymetallic nodules. We present these data to facilitate future taxonomic and environmental impact study by making both data and voucher materials available through curated and accessible biological collections.

scholarly journals Abyssal fauna of the UK-1 polymetallic nodule exploration claim, Clarion-Clipperton Zone, central Pacific Ocean: Echinodermata

2016 ◽  
Vol 4 ◽  
pp. e7251 ◽  
Author(s):  
Thomas Dahlgren ◽  
Adrian Glover ◽  
Helena Wiklund ◽  
Muriel Rabone ◽  
Diva Amon ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Central Pacific ◽  
Central Pacific Ocean ◽  
Polymetallic Nodule ◽  
Abyssal Fauna ◽  
The Uk

scholarly journals Abyssal fauna of the UK-1 polymetallic nodule exploration area, Clarion-Clipperton Zone, central Pacific Ocean: Cnidaria

2016 ◽  
Vol 4 ◽  
pp. e9277 ◽  
Author(s):  
Thomas Dahlgren ◽  
Helena Wiklund ◽  
Muriel Rabone ◽  
Diva Amon ◽  
Chiho Ikebe ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Central Pacific ◽  
Central Pacific Ocean ◽  
Polymetallic Nodule ◽  
Abyssal Fauna ◽  
Exploration Area ◽  
The Uk

scholarly journals Abyssal fauna of the UK-1 polymetallic nodule exploration area, Clarion-Clipperton Zone, central Pacific Ocean: Mollusca

ZooKeys ◽  
2017 ◽  
Vol 707 ◽  
pp. 1-46 ◽  
Author(s):  
Helena Wiklund ◽  
John D. Taylor ◽  
Thomas G. Dahlgren ◽  
Christiane Todt ◽  
Chiho Ikebe ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Central Pacific ◽  
Central Pacific Ocean ◽  
Polymetallic Nodule ◽  
Abyssal Fauna ◽  
Exploration Area ◽  
The Uk

Acropora rongelapensis sp. nov., a new species of Acropora from the Marshall Islands (Scleractinia: Astrocoeniina: Acroporidae)

Zootaxa ◽  
2004 ◽  
Vol 590 (1) ◽  
pp. 1 ◽  
Author(s):  
ZOE T. RICHARDS ◽  
CARDEN C. WALLACE
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Coral Species ◽  
Marshall Islands ◽  
Central Pacific ◽  
Diagnostic Characters ◽  
Central Pacific Ocean ◽  
The Republic ◽  
Distinguishing Features ◽  
A New Species

A new coral species, Acropora rongelapensis, from the northern central Pacific Ocean is described. On present records, this species appears to be endemic to the Republic of the Marshall Islands. Distinguishing features of the species include sub-flattened branches with widely separated radial corallites born laterally. Diagnostic characters of the new species place it within the Acropora loripes group.

scholarly journals New species of Eurythenes from hadal depths of the Mariana Trench, Pacific Ocean (Crustacea: Amphipoda)

Zootaxa ◽  
2020 ◽  
Vol 4748 (1) ◽  
pp. 163-181 ◽  
Author(s):  
JOHANNA N. J. WESTON ◽  
PRISCILLA CARRILLO-BARRAGAN ◽  
THOMAS D. LINLEY ◽  
WILLIAM D. K. REID ◽  
ALAN J. JAMIESON
Keyword(s):  
Pacific Ocean ◽  
Morphological Characteristics ◽  
Anthropogenic Pollution ◽  
Ocean Basin ◽  
Northwest Pacific ◽  
Central Pacific ◽  
Bathymetric Range ◽  
Northwest Pacific Ocean ◽  
Mariana Trench ◽  
Central Pacific Ocean

Eurythenes S. I. Smith in Scudder, 1882 are one of the largest scavenging deep-sea amphipods (max. 154 mm) and are found in every ocean across an extensive bathymetric range from the shallow polar waters to hadal depths. Recent systematic studies of the genus have illuminated a cryptic species complex and highlighted the benefits of using a combination of morphological and molecular identification approaches. In this study, we present the ninth species, Eurythenes plasticus sp. nov., which was recovered using baited traps between the depths 6010 and 6949 m in the Mariana Trench (Northwest Pacific Ocean) in 2014. This new Eurythenes species was found to have distinct morphological characteristics and be a well-supported clade based on sequence variation at two mitochondrial regions (16S rDNA and COI). While this species is new to science and lives in the remote hadal zone, it is not exempt from the impacts of anthropogenic pollution. Indeed, one individual was found to have a microplastic fibre, 83.74% similar to polyethylene terephthalate (PET), in its hindgut. As this species has a bathymetric range spanning from abyssal to hadal depths in the Central Pacific Ocean basin, it offers further insights into the biogeography of Eurythenes. 

scholarly journals Polymetallic nodules are essential for food-web integrity of a prospective deep-seabed mining area in Pacific abyssal plains

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Tanja Stratmann ◽  
Karline Soetaert ◽  
Daniel Kersken ◽  
Dick van Oevelen
Keyword(s):  
Pacific Ocean ◽  
Food Web ◽  
Mining Area ◽  
Central Pacific ◽  
Central Pacific Ocean ◽  
Polymetallic Nodule ◽  
Polymetallic Nodules ◽  
Deep Seabed Mining ◽  
Seabed Mining ◽  
Interaction Web

AbstractPolymetallic nodule fields provide hard substrate for sessile organisms on the abyssal seafloor between 3000 and 6000 m water depth. Deep-seabed mining targets these mineral-rich nodules and will likely modify the consumer-resource (trophic) and substrate-providing (non-trophic) interactions within the abyssal food web. However, the importance of nodules and their associated sessile fauna in supporting food-web integrity remains unclear. Here, we use seafloor imagery and published literature to develop highly-resolved trophic and non-trophic interaction webs for the Clarion-Clipperton Fracture Zone (CCZ, central Pacific Ocean) and the Peru Basin (PB, South-East Pacific Ocean) and to assess how nodule removal may modify these networks. The CCZ interaction web included 1028 compartments connected with 59,793 links and the PB interaction web consisted of 342 compartments and 8044 links. We show that knock-down effects of nodule removal resulted in a 17.9% (CCZ) to 20.8% (PB) loss of all taxa and 22.8% (PB) to 30.6% (CCZ) loss of network links. Subsequent analysis identified stalked glass sponges living attached to the nodules as key structural species that supported a high diversity of associated fauna. We conclude that polymetallic nodules are critical for food-web integrity and that their absence will likely result in reduced local benthic biodiversity.

Two new species of the genus Ophichthus from the western central Pacific Ocean, with a redescription of Ophichthus megalops Asano, 1987 (Anguilliformes: Ophichthidae)

Zootaxa ◽  
2019 ◽  
Vol 4702 (1) ◽  
pp. 140-154 ◽  
Author(s):  
YUSUKE HIBINO ◽  
YUNG-CHIEH CHIU ◽  
HONG-MING CHEN ◽  
KWANG-TSAO SHAO
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Anterior Margin ◽  
New Caledonia ◽  
Central Pacific ◽  
Long Tail ◽  
Central Pacific Ocean ◽  
Total Length ◽  
Two New Species ◽  
Coi Sequences

Two new species similar to Ophichthus megalops Asano, 1987 with dark-tipped anal fins, are described on the basis of one specimen of each species. Ophichthus semilunatus sp. nov. from northeastern Taiwan is characterized by having 176 total vertebrae, three rows of teeth on the maxilla, one + three supraorbital pores, two preopercular pores, a brownish anterior-nostril tube, and a blotch on the anterior margin of anus. Ophichthus brevidorsalis sp. nov. from New Caledonia is characterized by having two preopercular pores, one + three supraorbital pores, smaller eyes 2.7 in head, a short head 9.5% of total length, a long tail 59.8% of total length, a slightly short snout 19.4% of head, and 43 predorsal vertebrae. A redescription of O. megalops is provided based on the holotype and 18 specimens newly collected from Taiwan. Selected characters of all nine Ophichthus with a dark-tipped anal fin are provided. In addition, partial COI sequences of five species is provided. 

Sign in / Sign up

Export Citation Format

Share Document