scholarly journals On some isopods of the family Dajidae from the northwest Pacific Ocean, with descriptions of a new genus and two new species

1908 ◽  
Vol 33 (1586) ◽  
pp. 689-696 ◽  
Author(s):  
Harriet Richardson
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
New Genus ◽  
Northwest Pacific ◽  
Northwest Pacific Ocean ◽  
The Family ◽  
Two New Species ◽  
The Northwest Pacific Ocean

scholarly journals Lacydonia shohoensis (Annelida, Lacydoniidae) sp. nov. – a new lacydonid species from deep-sea sunken wood discovered at the Nishi-Shichito Ridge, North-western Pacific Ocean

2022 ◽  
pp. 1-7
Author(s):  
Natsumi Hookabe ◽  
Naoto Jimi ◽  
Hiroyuki Yokooka ◽  
Shinji Tsuchida ◽  
Yoshihiro Fujiwara
Keyword(s):  
Pacific Ocean ◽  
Deep Sea ◽  
Posterior Margin ◽  
Northwest Pacific ◽  
Western Pacific Ocean ◽  
Northwest Pacific Ocean ◽  
The Family ◽  
The Northwest Pacific Ocean ◽  
North Western ◽  
North Western Pacific

Abstract Lacydonia Marion & Bobretsky, 1875 is the sole genus in the family Lacydoniidae Bergström, 1914. We herein describe the new species of Lacydonia shohoensis sp. nov. from 2042-m deep bottoms at Shoho Seamount of the Nishi-Shichito Ridge, the Northwest Pacific Ocean. It is most similar to L. anapaulae Rizzo et al., 2016 in having a depression on the median anterior region and lacking lateral lobes on the posterior margin of prostomium whereas it is distinguished by possessing pygidium dorsally pigmented with three reddish spots and non-pigmented pygidial lateral cirri equally elongated.

scholarly journals A new Antipathozoanthus species (Cnidaria, Hexacorallia, Zoantharia) from the northwest Pacific Ocean

ZooKeys ◽  
2021 ◽  
Vol 1040 ◽  
pp. 49-64
Author(s):  
Hiroki Kise ◽  
Masami Obuchi ◽  
James Davis Reimer
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Genetic Markers ◽  
Phylogenetic Analyses ◽  
Northwest Pacific ◽  
Northwest Pacific Ocean ◽  
Exposed Rock ◽  
Molecular Phylogenetic ◽  
The Northwest Pacific Ocean ◽  
A New Species

A new species of zoantharian within the genus Antipathozoanthus is described based on specimens collected from the coast of mainland Japan, northwest Pacific Ocean. Antipathozoanthus tubussp. nov. is characterized by its substrate (epibiotic on polychaete tube) and habitat (exposed rock). As well, the results of molecular phylogenetic analyses using concatenated multiple genetic markers also support the distinction between A. tubussp. nov. and its congenerics. Antipathozoanthus tubussp. nov. is the first species of Antipathozoanthus species reported to be epibiotic on polychaete tubes, and is the second species in the genus that is not associated with antipatharians.

Portaratrum, a new genus of deep-sea Tanaidacea (Crustacea) with description of two new species

Zootaxa ◽  
2003 ◽  
Vol 282 (1) ◽  
pp. 1 ◽  
Author(s):  
JÜRGEN GUERRERO-KOMMRITZ
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Atlantic Ocean ◽  
Deep Sea ◽  
New Genus ◽  
The Pacific ◽  
The Family ◽  
Two New Species ◽  
The Pacific Ocean

A new genus, Portaratrum n. gen. and two new species, one from the Atlantic Ocean and one from the Pacific Ocean are described. The new genus is characterized by a downwardly directed pleonal spur, cheliped basis fused to the cephalothorax, biramous uropods, pars molaris blunt with several terminal spinules. At present the genus is assigned to the family Colletteidae. Both species were collected from depths exceeding 4000 m.

Two new species of paratanaoid tanaidaceans of the family incertae sedis (Crustacea: Peracarida) from polymetallic nodule fields in the eastern Clarion-Clipperton Fracture Zone

Zootaxa ◽  
2020 ◽  
Vol 4758 (3) ◽  
pp. 461-485
Author(s):  
C. K. CHIM ◽  
SAMANTHA J. W. TONG
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Fracture Zone ◽  
New Genus ◽  
Incertae Sedis ◽  
Polymetallic Nodule ◽  
Clipperton Fracture Zone ◽  
The Family ◽  
Two New Species ◽  
Clarion Clipperton Fracture Zone

This study describes a new genus and two new species of Tanaidacea that were collected from the Singaporean exploratory area (OMS) of the polymetallic nodule fields in the eastern end of the Clarion-Clipperton Fracture Zone, Pacific Ocean. The descriptions are based on material collected during the research cruise ABYSSLINE II, which was conducted in the year 2015, covering abyssal depths of 4041–4227 m. These new species are paratanaoideans belonging to the genera Unispinosus n. gen. and Portaratrum Guerrero-Kommritz, 2003 of the family incertae sedis. 

scholarly journals Aerosol iron and aluminum solubility in the northwest Pacific Ocean: Results from the 2002 IOC cruise

2006 ◽  
Vol 7 (4) ◽  
pp. n/a-n/a ◽  
Author(s):  
Clifton S. Buck ◽  
William M. Landing ◽  
Joseph A. Resing ◽  
Geoffrey T. Lebon
Keyword(s):  
Pacific Ocean ◽  
Northwest Pacific ◽  
Northwest Pacific Ocean ◽  
The Northwest Pacific Ocean ◽  
Aluminum Solubility

scholarly journals Analysis of Atmospheric and Ionospheric Variations Due to Impacts of Super Typhoon Mangkhut (1822) in the Northwest Pacific Ocean

2021 ◽  
Vol 13 (4) ◽  
pp. 661
Author(s):  
Mohamed Freeshah ◽  
Xiaohong Zhang ◽  
Erman Şentürk ◽  
Muhammad Arqim Adil ◽  
B. G. Mousa ◽  
...  
Keyword(s):  
Wind Speed ◽  
Pacific Ocean ◽  
Tropical Cyclone ◽  
Sea Level ◽  
Northwest Pacific ◽  
Northwest Pacific Ocean ◽  
Sea Level Pressure ◽  
Level Pressure ◽  
Super Typhoon ◽  
The Northwest Pacific Ocean

The Northwest Pacific Ocean (NWP) is one of the most vulnerable regions that has been hit by typhoons. In September 2018, Mangkhut was the 22nd Tropical Cyclone (TC) over the NWP regions (so, the event was numbered as 1822). In this paper, we investigated the highest amplitude ionospheric variations, along with the atmospheric anomalies, such as the sea-level pressure, Mangkhut’s cloud system, and the meridional and zonal wind during the typhoon. Regional Ionosphere Maps (RIMs) were created through the Hong Kong Continuously Operating Reference Stations (HKCORS) and International GNSS Service (IGS) data around the area of Mangkhut typhoon. RIMs were utilized to analyze the ionospheric Total Electron Content (TEC) response over the maximum wind speed points (maximum spots) under the meticulous observations of the solar-terrestrial environment and geomagnetic storm indices. Ionospheric vertical TEC (VTEC) time sequences over the maximum spots are detected by three methods: interquartile range method (IQR), enhanced average difference (EAD), and range of ten days (RTD) during the super typhoon Mangkhut. The research findings indicated significant ionospheric variations over the maximum spots during this powerful tropical cyclone within a few hours before the extreme wind speed. Moreover, the ionosphere showed a positive response where the maximum VTEC amplitude variations coincided with the cyclone rainbands or typhoon edges rather than the center of the storm. The sea-level pressure tends to decrease around the typhoon periphery, and the highest ionospheric VTEC amplitude was observed when the low-pressure cell covers the largest area. The possible mechanism of the ionospheric response is based on strong convective cells that create the gravity waves over tropical cyclones. Moreover, the critical change state in the meridional wind happened on the same day of maximum ionospheric variations on the 256th day of the year (DOY 256). This comprehensive analysis suggests that the meridional winds and their resulting waves may contribute in one way or another to upper atmosphere-ionosphere coupling.

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