Dispersion of One-Second Rayleigh Modes through Oceanic Sediments Following Shallow Earthquakes in the South-Central Pacific Ocean Basin

1980 ◽  
pp. 345-358 ◽  
Author(s):  
Emile A. Okal ◽  
Jacques Talandier
Keyword(s):  
Pacific Ocean ◽  
Ocean Basin ◽  
The South ◽  
Central Pacific ◽  
Central Pacific Ocean ◽  
South Central ◽  
Oceanic Sediments ◽  
Shallow Earthquakes

scholarly journals Atmospheric and oceanic evidences of El Niño-Southern Oscillation events in the south central Pacific Ocean from coral stable isotopic records over the last 137 years

1998 ◽  
Vol 13 (6) ◽  
pp. 671-685 ◽  
Author(s):  
Muriel Boiseau ◽  
Anne Juillet-Leclerc ◽  
Pascal Yiou ◽  
Bernard Salvat ◽  
Peter Isdale ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
El Nino ◽  
Southern Oscillation ◽  
El Nino Southern Oscillation ◽  
The South ◽  
Central Pacific ◽  
Central Pacific Ocean ◽  
South Central ◽  
Stable Isotopic ◽  
Isotopic Records

Geochemistry and origin of basaltic lavas from Society Islands, French Polynesia (south central Pacific Ocean)

1982 ◽  
Vol 45 (1) ◽  
pp. 51-62 ◽  
Author(s):  
J. Dostal ◽  
C. Dupuy ◽  
J. M. Liotard
Keyword(s):  
Pacific Ocean ◽  
French Polynesia ◽  
Central Pacific ◽  
Society Islands ◽  
Central Pacific Ocean ◽  
South Central ◽  
Basaltic Lavas

Rare and endemic vascular plants of the Pitcairn Islands, south-central Pacific Ocean: A conservation appraisal

1995 ◽  
Vol 74 (2) ◽  
pp. 83-98 ◽  
Author(s):  
S. Waldren ◽  
J. Florence ◽  
A.J. Chepstow-Lusty
Keyword(s):  
Pacific Ocean ◽  
Vascular Plants ◽  
Central Pacific ◽  
Central Pacific Ocean ◽  
South Central

scholarly journals <i>Recolonization of reef flat by larger foraminifera, Funafuti, Tuvalu</i>

1996 ◽  
Vol 15 (2) ◽  
pp. 130-130 ◽  
Author(s):  
John Collen
Keyword(s):  
Pacific Ocean ◽  
Coastal Erosion ◽  
Reef Flat ◽  
Larger Foraminifera ◽  
Carbonate Sediment ◽  
Central Pacific ◽  
Main Island ◽  
Central Pacific Ocean ◽  
Sediment Budgets ◽  
South Central

Abstract. The ecology of the larger foraminifera is poorly known for western Pacific atolls, despite the importance of these species to the sediment budgets of the atolls. Many beaches and islets (motu) are composed largely of foraminiferal tests derived from reef flat communities; however, populations of larger foraminifera are often under threat or may even have been eliminated by the effects of pollution and development of the reef flats. It is therefore important to understand the rates of response of foraminiferal populations to natural and human changes to their environments.This note reports some observations arising from studies of foraminifera and sedimentation on Funafuti Atoll in the south-central Tuvalu Group, west central Pacific Ocean, at latitude 8°30′S and longitude 179°12′E. The atoll consists of some 39 small islets surrounding a c. 200 km2 lagoon up to 55 m deep (Smith &amp; Woodward, 1992), with reef flats up to several hundred metres wide surrounding the islets on both ocean and lagoon sides.Foraminiferal faunas in the lagoon and on the reef flats are diverse, and include some 8 species of larger foraminifera. Although they do not usually make up more than 40% of the reef flat sediments, because of various concentrating processes, tests of the larger foraminifera (particularly Baculogypsina sphaerulata and Amphistegina lobifera) comprise up to 80% of the sediments forming the main island Fongafale. This foraminiferal component may be even higher for the sands of other atolls, and its significance to the carbonate sediment budget and to problems of coastal erosion. . .

Origin of basalts from the Marquesas Archipelago (south central Pacific Ocean): isotope and trace element constraints

1987 ◽  
Vol 82 (1-2) ◽  
pp. 145-152 ◽  
Author(s):  
C. Dupuy ◽  
P. Vidal ◽  
H.G. Barsczus ◽  
C. Chauvel
Keyword(s):  
Pacific Ocean ◽  
Trace Element ◽  
Central Pacific ◽  
Central Pacific Ocean ◽  
South Central

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 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. 

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