Description of three new species of Bradyidius (Copepoda: Calanoida), the new aetideids from the deep Pacific Ocean, with notes on the genera Bradyidius and Aetideopsis

Zootaxa ◽  
2021 ◽  
Vol 5004 (2) ◽  
pp. 343-369
Author(s):  
ELENA L. MARKHASEVA ◽  
JASMIN RENZ
Keyword(s):  
Pacific Ocean ◽  
Atlantic Ocean ◽  
World Ocean ◽  
Weddell Sea ◽  
Lateral Spine ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Three New Species ◽  
Argentine Basin ◽  
Exopod Segment

Three new aetideid species, Bradyidius abyssalis sp. nov., Bradyidius parabyssalis sp. nov., and B. kurilokamchaticus sp. nov. are described from female specimens collected near the seafloor in the abyss of the Pacific and Atlantic Oceans. Specimens of Bradyidius parabyssalis sp. nov. were obtained in both the Atlantic and Pacific Oceans (Argentine Basin, area of the Meteor Seamount and the Kurile-Kamchatka Trench). Bradyidius abyssalis sp. nov. was found only in the Atlantic Ocean, (Brazil and Guinea Basins and area of the Meteor Seamount) and Bradyidius kurilokamchaticus sp. nov. was recorded from the Kurile-Kamchatka Trench of the Pacific Ocean. Three new herein described Bradyidius species constitute the first documented records of the genus from the abyss of the World Ocean. In addition, three Bradyidius species from the Weddell Sea, the Atlantic Ocean and the Kurile-Kamchatka Trench, are briefly described without biological names due to their bad condition. Bradyidius parabyssalis sp. nov. and B. abyssalis sp. nov. are distinguished from all known congeners by the presence of 3 setae at the basis of the mandible and morphological details of the prosome posterior corners and P1. They show close resemblance to each other but differ in body size, rostrum structure, P4 coxa armament and length of the setae of the antennule ancestral segment I and the mandible basis. Bradyidius kurilokamchaticus sp. nov. shares with B. curtus Markhaseva, 1993, B. pacificus (Brodsky, 1950) and B. arnoldi Fleminger, 1957 a rostrum with non-divergent or parallel points, but differs from these species in the size, the well developed lateral spine on exopod segment 1, in the number of setae at the antenna exopod segment 1 and some morphological details of the prosome posterior corners. Characters that define the genus Bradyidius Giesbrecht, 1897 from Aetideopsis Sars, 1903, i.e. the shape of lateral spines of P1exopod segments 1 and 2; the endopod of P2 segmentation and the setation of the antennule ancestral segments XII, XV and XVII are discussed.

Taxonomy of the genus Thyonella (Holothuroidea: Dendrochirotida), with mention of the first record of T. sabanillaensis from the southwestern Atlantic Ocean

Zootaxa ◽  
2018 ◽  
Vol 4527 (1) ◽  
pp. 75
Author(s):  
LUCIANA MARTINS
Keyword(s):  
Pacific Ocean ◽  
Atlantic Ocean ◽  
First Record ◽  
Morphological Characters ◽  
Sem Analysis ◽  
Southwestern Atlantic ◽  
Internal Morphology ◽  
The Pacific ◽  
Southwestern Atlantic Ocean ◽  
The Pacific Ocean

The genus Thyonella currently comprises four species which occur in the Atlantic and Pacific Oceans. Thyonella mexicana is the only species known to occur in the Pacific Ocean. The main morphological characters used to distinguish Thyonella species are their dermal ossicles. Since the differences among these characters are subtle, this contribution provides a detailed description and comparison of the ossicle assemblage of the concerned taxa. In addition, description of the internal morphology of three of the concerned species is also provided. Further, this study reports on the first record of Thyonella sabanillaensis for the Southwestern Atlantic. A worldwide revision of the distributional records of Thyonella species is presented and their taxonomy is discussed, concluding that some traditional taxonomic characters should be used cautiously. A brief discussion about the importance of SEM analysis is also provided. 

1755, Lisbon

Tsunami ◽  
2021 ◽  
pp. 151-160
Author(s):  
James Goff ◽  
Walter Dudley
Keyword(s):  
Pacific Ocean ◽  
Atlantic Ocean ◽  
North Africa ◽  
Tsunami Waves ◽  
The Pacific ◽  
The Pacific Ocean ◽  
The Caribbean ◽  
The City

Most Europeans do not worry about tsunami waves as much as those who live around the rim of the Pacific Ocean, but they should. On All Saint’s Day, 1755, a huge earthquake struck Lisbon, Portugal, causing most stone buildings to collapse, including churches, monasteries, nunneries, and chapels, trapping the faithful inside the ruins, which votive candles quickly turned into burning pyres. Voltaire would write, “The sole consolation is that the Jesuit Inquisitors of Lisbon will have disappeared.” To add to the irony, among the few buildings safely left standing following the disaster were the lightly constructed wooden bordellos of the city. Most of Lisbon’s prostitutes but few of her nuns survived. Tsunami waves would not only kill thousands around Lisbon’s harbor but also travel south to Spain and North Africa, north to Ireland and Wales, and across the Atlantic Ocean to the Caribbean, flooding the streets of Barbados.

scholarly journals GEOSECS Pacific Radiocarbon

Radiocarbon ◽  
1980 ◽  
Vol 22 (1) ◽  
pp. 25-53 ◽  
Author(s):  
H G Östlund ◽  
Minze Stuiver
Keyword(s):  
Pacific Ocean ◽  
Atlantic Ocean ◽  
Preceding Paper ◽  
Section Study ◽  
The Pacific ◽  
The Pacific Ocean

In the preceding paper (Stuiver and Östlund, this issue), some of the general features of the Geochemical Ocean Section Study (GEOSECS) were outlined and results were listed for the Atlantic Ocean. This paper will deal with the second major cruise, which was described by Craig and Turekian (1976), covering the Pacific Ocean in 1973-74 (cf fig 1).

Records of species of the hippolytid genus Lebbeus White, 1847 (Crustacea: Decapoda: Caridea) from hydrothermal vents in the Pacific Ocean, with descriptions of three new species

Zootaxa ◽  
2012 ◽  
Vol 3241 (1) ◽  
pp. 35 ◽  
Author(s):  
TOMOYUKI KOMAI ◽  
SHINJI TSUCHIDA ◽  
MICHEL SEGONZAC
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Hydrothermal Vents ◽  
Okinawa Trough ◽  
East Pacific Rise ◽  
East Pacific ◽  
The Okinawa Trough ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Three New Species

Five species of the hippolytid shrimp genus Lebbeus White, 1847 are reported from various deep-water hydrothermal ventsites in the Pacific Ocean: L. laurentae Wicksten, 2010 from the East Pacific Rise 13°N; L. wera Ahyong, 2009 from theBrothers Seamount, Kermadec Ridge, New Zealand; L. pacmanus sp. nov. from the Manus Basin, Bismarck Sea; L.shinkaiae sp. nov. from the Okinawa Trough, Japan; and L. thermophilus sp. nov. from the Manus and Lau basins, south-western Pacific. Lebbeus laurentae is fully redescribed because the original and subsequent descriptions are not totallydetailed. Differentiating characters among the three new species and close allies are discussed. Previous records of Lebbeus species from hydrothermal vents are reviewed.

scholarly journals CONTINENTAL FRAMING AND OUTDOOR SEAS THE PACIFIC OCEAN AS A PLANETARY LANDSCAPE GEOSYSTEM IN THE DEVELOPMENT OF THE WORLD OCEAN

2021 ◽  
Author(s):  
В.Т. Старожилов
Keyword(s):  
Pacific Ocean ◽  
Landscape Structure ◽  
World Ocean ◽  
Marginal Seas ◽  
Basic Model ◽  
The Pacific ◽  
The World ◽  
Model Foundation ◽  
Practical Development ◽  
The Pacific Ocean

Констатируется, что континентальное обрамление и окраинные моря Тихого океана как планетарная ландшафтная геосистема в освоении Мирового океана и выделенные как Тихоокеанский ландшафтный пояс (https://doi.org/10.18411/a-2017-089) как основа - модель научного и практического освоения геосистемы океан- континент ранее не рассматривалась. В настоящее время в связи с освоением переходной зоны Азиатского континента к океану появилась необходимость рассмотреть возможности применения ландшафтного подхода в практиках освоения геосистем этой зоны. Работа, представляет собой продолжение комплексных исследований в целом сформировавшейся ландшафтной школы профессора В.Т. Старожилова (doi:10.24411/1728-323Х-2020-13079, doi:10.18411/lj-05-2020-26). Отмечается, что комплексное изучение ландшафтной структуры обрамления Тихого океана, имеет базовое значение при природопользовании Мирового океана. Именно ландшафтный пояс, включающий Сихотэ-Алинскую, Нижнеамурскую, Камчатско-Курильскую, Сахалинскую и другие ландшафтные области и сопряженные с ними окраинные моря, представляет собой часть единой с Тихим океаном структуры природы и представляются как основа для выполнения задач науки и практики освоения территорий континентального обрамления Тихого океана, окраинных морей и использования материалов в освоении Мирового океана. Он, как планетарная ландшафтная структура, является базовой моделью «фундаментом» для построения гармонизированных с природой и связанных с океаном экологических, сельскохозяйственных и других отраслевых моделей освоения этой обширной тихоокеанской зоны. Отмечается, что в свою очередь применение компьютерной технологии векторно-слоевого ландшафтного метода создают платформу для разработки планов и проектов освоения. Он также является платформой для обучения студентов. Приводятся данные о картографической обеспеченности пояса современными векторно-слоевыми цифровыми материалами. It is stated that the continental framing and marginal seas of the Pacific Ocean as a planetary landscape geosystem in the development of the World Ocean and identified as the Pacific landscape belt (https://doi.org/10.18411/a-2017-089) as a basis - a model of scientific and practical development of the geosystem ocean-continent has not been previously considered. Currently, in connection with the development of the transition zone of the Asian continent to the ocean, it is necessary to consider the possibilities of applying the landscape approach in the practice of developing the geosystems of this zone. The work is a continuation of the comprehensive studies of the generally formed landscape school of Professor V.T. Starozhilov (doi: 10.24411 / 1728-323X-2020-13079, doi: 10.18411 / lj-05-2020-26). It is noted that a comprehensive study of the landscape structure of the Pacific Ocean framing is of fundamental importance in the use of natural resources in the World Ocean. It is the landscape belt, including the Sikhote-Alin, Nizhneamur, Kamchatka-Kuril, Sakhalin and other landscape areas and the marginal seas associated with them, that is a part of the structure of nature united with the Pacific Ocean and is presented as the basis for fulfilling the tasks of science and practice of developing territories of the continental framing The Pacific Ocean, marginal seas and the use of materials in the development of the World Ocean. It, as a planetary landscape structure, is the basic model "foundation" for building harmonized with nature and related to the ocean ecological, agricultural and other sectoral models for the development of this vast Pacific zone. It is noted that, in turn, the use of computer technology of the vector-layer landscape method creates a platform for the development of plans and development projects. It is also a platform for student learning. The data on the cartographic provision of the belt with modern vector-layer digital materials are presented.

scholarly journals Континентальное обрамление и окраинные моря Тихого океана как планетарная ландшафтная геосистема в освоении мирового океана

2021 ◽  
Vol 70 (2) ◽  
pp. 138-144
Author(s):  
В.Т. Старожилов
Keyword(s):  
Pacific Ocean ◽  
Landscape Structure ◽  
World Ocean ◽  
Marginal Seas ◽  
Basic Model ◽  
The Pacific ◽  
The World ◽  
Model Foundation ◽  
Practical Development ◽  
The Pacific Ocean

It is stated that the continental framing and marginal seas of the Pacific Ocean as a planetary landscape geosystem in the development of the World Ocean and identified as the Pacific landscape belt (https://doi.org/10.18411/a-2017-089) as a basis - a model of scientific and practical development of the geosystem ocean-continent has not been previously considered. Currently, in connection with the development of the transition zone of the Asian continent to the ocean, it is necessary to consider the possibilities of applying the landscape approach in the practice of developing the geosystems of this zone. The work is a continuation of the comprehensive studies of the generally formed landscape school of Professor V.T. Starozhilov (doi: 10.24411 / 1728-323X-2020-13079, doi: 10.18411 / lj-05-2020-26). It is noted that a comprehensive study of the landscape structure of the Pacific Ocean framing is of fundamental importance in the use of natural resources in the World Ocean. It is the landscape belt, including the Sikhote-Alin, Nizhneamur, Kamchatka-Kuril, Sakhalin and other landscape areas and the marginal seas associated with them, that is a part of the structure of nature united with the Pacific Ocean and is presented as the basis for fulfilling the tasks of science and practice of developing territories of the continental framing The Pacific Ocean, marginal seas and the use of materials in the development of the World Ocean. It, as a planetary landscape structure, is the basic model "foundation" for building harmonized with nature and related to the ocean ecological, agricultural and other sectoral models for the development of this vast Pacific zone. It is noted that, in turn, the use of computer technology of the vector-layer landscape method creates a platform for the development of plans and development projects. It is also a platform for student learning. The data on the cartographic provision of the belt with modern vector-layer digital materials are presented.

scholarly journals Diazotrophic Diversity and Distribution in the Tropical and Subtropical Atlantic Ocean

2005 ◽  
Vol 71 (12) ◽  
pp. 7910-7919 ◽  
Author(s):  
Rebecca J. Langlois ◽  
Julie LaRoche ◽  
Philipp A. Raab
Keyword(s):  
Pacific Ocean ◽  
Atlantic Ocean ◽  
Heterotrophic Bacteria ◽  
Pcr Amplification ◽  
Environmental Dna ◽  
Degenerate Primers ◽  
Community Shift ◽  
The Pacific ◽  
Group A ◽  
The Pacific Ocean

ABSTRACT To understand the structure of marine diazotrophic communities in the tropical and subtropical Atlantic Ocean, the molecular diversity of the nifH gene was studied by nested PCR amplification using degenerate primers, followed by cloning and sequencing. Sequences of nifH genes were amplified from environmental DNA samples collected during three cruises (November-December 2000, March 2002, and October-November 2002) covering an area between 0 to 28.3°N and 56.6 to 18.5°W. A total of 170 unique sequences were recovered from 18 stations and 23 depths. Samples from the November-December 2000 cruise contained both unicellular and filamentous cyanobacterial nifH phylotypes, as well as γ-proteobacterial and cluster III sequences, so far only reported in the Pacific Ocean. In contrast, samples from the March 2002 cruise contained only phylotypes related to the uncultured group A unicellular cyanobacteria. The October-November 2002 cruise contained both filamentous and unicellular cyanobacterial and γ-proteobacterial sequences. Several sequences were identical at the nucleotide level to previously described environmental sequences from the Pacific Ocean, including group A sequences. The data suggest a community shift from filamentous cyanobacteria in surface waters to unicellular cyanobacteria and/or heterotrophic bacteria in deeper waters. With one exception, filamentous cyanobacterial nifH sequences were present within temperatures ranging between 26.5 and 30°C and where nitrate was undetectable. In contrast, nonfilamentous nifH sequences were found throughout a broader temperature range, 15 to 30°C, more often in waters with temperature of <26°C, and were sometimes recovered from waters with detectable nitrate concentrations.

Revision of Spinosphaera and establishment of the new genus Hutchingsiella (Polychaeta: Terebellidae: Terebellinae)

2003 ◽  
Vol 83 (4) ◽  
pp. 747-759 ◽  
Author(s):  
Mario H. Londoño-Mesa
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Western Australia ◽  
New Genus ◽  
Caribbean Region ◽  
Caribbean Coast ◽  
The Pacific ◽  
Mexican Caribbean ◽  
The Pacific Ocean ◽  
Three New Species

Spinosphaera is a Terebellinae genus with three species described from the Pacific Ocean, S. pacifica from Japan, S. oculata from California, and the doubtful S. cowarrie from Western Australia. The genus is presently unknown in the Grand Caribbean region. Spinosphaera is characterized by the absence of branchiae, by the great number of notopodia, and the presence of a special type of notochaetae, called ‘Spinosphaera-chaeta’. These chaetae have three different regions: distal denticulate blade, neck separating the former from a middle swollen spinous region, and a proximal smooth or bilimbate region; two sizes are present. The genus is redefined, with redescription of all species currently known. Three new species are described here, two from the Mexican Caribbean coast, S. hutchingsae and S. carrerai, and one from California, S. harrisae. A taxonomic key to identify all species is given. Hutchingsiella gen. nov. is proposed for S. cowarrie; it differs from Spinosphaera in having notochaeta from segment 5 and neurochaetae from segment 6, and for lacking Spinosphaera chaeta.

Revision of the genus Pozziella (Porifera: Poecilosclerida) with description ofthree new species from the eastern Pacific

Zootaxa ◽  
2008 ◽  
Vol 1866 (1) ◽  
pp. 69
Author(s):  
GUILLERMO DÍAZ-AGRAS
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Central America ◽  
Eastern Pacific ◽  
Similarity Analysis ◽  
Galapagos Archipelago ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Three New Species ◽  
Pacific Species

To date, the poecilosclerid sponge genus Pozziella Topsent, 1896 was represented by two species: Pozziella clavisepta Topsent, 1896 and Pozziella aperta (Topsent, 1920), which are presently redescribed. During the campaign SO 144-3a of the project PAGANINI in the Pacific Ocean between the Galapagos Archipelago and Central America, three new species were recovered and are described here: Pozziella cerilla sp. nov., Pozziella neuhausi sp. nov. and Pozziella lueteri sp. nov. The present study led to a revision of the genus and an attempt to resolve the relationships between the species, based on the likeness of spicule complements and biometric characters. A similarity analysis revealed that Atlantic and Pacific species clustered separately. In addition, a key to all species of the genus based on spicular characters is provided.

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