Relationship of Radiolarian Assemblages to Sediment Types and Physical Oceanography in the Atlantic and Western Indian Ocean Sectors of the Antarctic Ocean

1976 ◽  
pp. 303-336 ◽  
Author(s):  
Jose A. Lozano ◽  
James D. Hays
Keyword(s):  
Indian Ocean ◽  
Western Indian Ocean ◽  
Physical Oceanography ◽  
Antarctic Ocean ◽  
Sediment Types ◽  
Relationship Of ◽  
The Antarctic ◽  
Radiolarian Assemblages

Characterization of radiolarian assemblages in the surface sediments of the Antarctic Ocean

Palaeoworld ◽  
2011 ◽  
Vol 20 (2-3) ◽  
pp. 232-251 ◽  
Author(s):  
Akiko Nishimura ◽  
Kojiro Nakaseko
Keyword(s):  
Surface Sediments ◽  
Antarctic Ocean ◽  
The Antarctic ◽  
Radiolarian Assemblages

scholarly journals Spatial Distributions of 226Ra and 228Ra in the Indian and Southern Oceans in 2020 and Their Implications for Unique Currents

2021 ◽  
Author(s):  
Mutsuo Inoue ◽  
Shotaro Hanaki ◽  
Hiroaki Kameyama ◽  
Yuichiro Kumamoto ◽  
Seiya Nagao
Keyword(s):  
Indian Ocean ◽  
Southern Ocean ◽  
Western Indian Ocean ◽  
Polar Front ◽  
Transport Systems ◽  
Material Transport ◽  
Vertical Variations ◽  
Circumpolar Current ◽  
The Antarctic ◽  
Southern Oceans

Abstract We examined the spatial variations in 226Ra and 228Ra concentrations from the surface to a depth of 830 m in the Indian and Southern Oceans during December 2019–January 2020. Notably, 226Ra concentrations at the surface increased sharply from 30°S to 60°S along an ~55°E transect (1.4 to 2.9 mBq/L), exhibiting small vertical variations, while 228Ra became depleted, particularly in the Southern Ocean. These distributions indicated the ocean-scale northward lateral movements of 226Ra-rich and 228Ra-depleted currents originating from the Antarctic Circumpolar Current (ACC). Using 226Ra concentrations, the fractions of the ACC at depths of 0–800 m were estimated to decrease from 0.95 to 0.14 from 60°S to 30°S through 0.56 at 43°S. The fractions in the subantarctic area the western Indian Ocean were higher than those previously reported from the eastern, indicating the preferential transport of the ACC. The fractions obtained were approximately equivalent to those in the western Indian section in the 1970s. This could be attributed to the minimal effects of the southward shift of the polar front due to global warming over the last 40 y, implying no notable changes in soluble material transport systems from the Southern Ocean to southern Indian Ocean.

Revision of Metavermilia Bush (Polychaeta, Serpulidae), with Descriptions of Three New Species from off Portugal, Gulf of Guinea, and Western Indian Ocean

1971 ◽  
Vol 28 (10) ◽  
pp. 1373-1383 ◽  
Author(s):  
Helmut W. Zibrowius
Keyword(s):  
Indian Ocean ◽  
Type Species ◽  
Western Indian Ocean ◽  
Systematic Position ◽  
Gulf Of Guinea ◽  
Gill Filaments ◽  
New Form ◽  
Three New Species ◽  
Relationship Of ◽  
The Relationship

The serpulid genus Metavermilia Bush 1904, is emended and revalidated for four species: M. multicristata (Philippi), the type-species and formerly placed in Vermiliopsis, from the Mediterranean Sea and northeast Atlantic, M. annobonensis n.sp. from the Gulf of Guinea, M. taenia n.sp. from the Bay of Portugal, and M. nates n.sp. from the western Indian Ocean. The relationship of Metavermilia to the closely related genera Vermiliopsis Saint-Joseph and Pseudovermilia Bush is discussed. An apparently new form of parasitism (organisms of uncertain systematic position) in serpulid polychaetes was observed on the gill filaments of M. nates.

Recovery of Pseudoterranova decipiens (Anisakidae) larvae from codfish of the Antarctic Ocean

1995 ◽  
Vol 33 (3) ◽  
pp. 231 ◽  
Author(s):  
J Y Chai ◽  
S M Guk ◽  
J J Sung ◽  
H C Kim ◽  
Y M Park
Keyword(s):  
Antarctic Ocean ◽  
Pseudoterranova Decipiens ◽  
The Antarctic

Editorial Introduction

2020 ◽  
Vol 4 (1) ◽  
pp. 1
Author(s):  
Editors of the JIOWS
Keyword(s):  
Nineteenth Century ◽  
Indian Ocean ◽  
Western Indian Ocean ◽  
Late Nineteenth Century ◽  
Fourth Volume ◽  
History Of ◽  
The Indian Ocean ◽  
Complex Relationships ◽  
Indian Ocean World ◽  
Shed Light

The editors are proud to present the first issue of the fourth volume of the Journal of Indian Ocean World Studies. This issue contains three articles, by James Francis Warren (Murdoch University), Kelsey McFaul (University of California, Santa Cruz), and Marek Pawelczak (University of Warsaw), respectively. Warren’s and McFaul’s articles take different approaches to the growing body of work that discusses pirates in the Indian Ocean World, past and present. Warren’s article is historical, exploring the life and times of Julano Taupan in the nineteenth-century Philippines. He invites us to question the meaning of the word ‘pirate’ and the several ways in which Taupan’s life has been interpreted by different European colonists and by anti-colonial movements from the mid-nineteenth century to the present day. McFaul’s article, meanwhile, takes a literary approach to discuss the much more recent phenomenon of Somali Piracy, which reached its apex in the last decade. Its contribution is to analyse the works of authors based in the region, challenging paradigms that have mostly been developed from analysis of works written in the West. Finally, Pawelczak’s article is a legal history of British jurisdiction in mid-late nineteenth-century Zanzibar. It examines one of the facets that underpinned European influence in the western Indian Ocean World before the establishment of colonial rule. In sum, this issue uses two key threads to shed light on the complex relationships between European and other Western powers and the Indian Ocean World.

scholarly journals Factors influencing microbial mat composition, distribution and dinitrogen fixation in three western Indian Ocean coral reefs

2012 ◽  
Vol 47 (1) ◽  
pp. 51-66 ◽  
Author(s):  
Loïc Charpy ◽  
Katarzyna A. Palinska ◽  
Raeid M. M. Abed ◽  
Marie José Langlade ◽  
Stjepko Golubic
Keyword(s):  
Indian Ocean ◽  
Coral Reefs ◽  
Western Indian Ocean ◽  
Dinitrogen Fixation ◽  
Microbial Mat ◽  
Composition Distribution ◽  
Factors Influencing
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