Morphology of larvae of the family Mytilidae (Bivalvia) from the north-western part of the Sea of Japan

2008 ◽  
Vol 88 (2) ◽  
pp. 331-339 ◽  
Author(s):  
Olga Ya. Semenikhina ◽  
Natalya K. Kolotukhina ◽  
George A. Evseev
Keyword(s):  
Sea Of Japan ◽  
Morphological Characters ◽  
Shell Morphology ◽  
Larval Shell ◽  
The Sea Of Japan ◽  
Time Interval ◽  
Musculista Senhousia ◽  
The North ◽  
The Family ◽  
Modiolus Kurilensis

The larval shell morphology of 10 bivalve species of the family Mytilidae (Adula falcatoides, Crenella decussata, Crenomytilus grayanus, Modiolus kurilensis, Musculista senhousia, Mytilus coruscus, Mytilus galloprovincialis, Mytilus trossulus and Septifer keenae, and an unidentified species Mytilidae indeterminate) from the Sea of Japan is described. The following morphological features were comparatively examined: larval shell outlines including shape and size of umbones, and anterior, posterior and ventral margins, hinge morphology, ligament location, sculpture, colour, and eye-spot outlines. Some dimensional parameters of larval shells are given. The time interval of occurrence of larvae in the plankton, water temperature in this period, and shell length of competent larvae are presented. It is demonstrated that, in spite of sometimes similar external morphological characters, identification of mytilid larvae creates no difficulties if all distinguishing characters are used.

Metopelloides paguri sp. nov., a new species of symbiotic stenothoid amphipod (Crustacea: Amphipoda: Stenothoidae) associated with sublittoral hermit crabs from the Russian coasts of the Sea of Japan

Zootaxa ◽  
2012 ◽  
Vol 3244 (1) ◽  
pp. 59 ◽  
Author(s):  
IVAN MARIN ◽  
SERGEY SINELNIKOV
Keyword(s):  
New Species ◽  
Sea Of Japan ◽  
Hermit Crab ◽  
Hermit Crabs ◽  
The Sea Of Japan ◽  
Crab Species ◽  
Body Coloration ◽  
The Family ◽  
Mandibular Palp ◽  
A New Species

A new species of amphipod from the genus Metopelloides Gurjanova, 1938 (Crustacea: Amphipoda: Stenothoidae) asso-ciated with two species of sublittoral hermit crab species, Pagurus pectinatus (Stimpson, 1858) and Elassochirus cavi-manus (Miers, 1879) (Crustacea: Decapoda: Paguridae), is described from the Russian coasts of the Sea of Japan. The newspecies clearly differs from the congeners by the combination of morphological features such as telson without lateralspines, an elongated mandibular palp with single apical setae, the structures of distoventral palmar margins of subchelaon gnathopods I and II in females, bright white-red body coloration. Thus, the record of Metopelloides paguri sp. nov.represents the second record of the family Stenothoidae in the association with sublittoral hermit crabs from the Sea of Japan.

scholarly journals Assessment of ecological state of the Posyet Bay (the Sea of Japan) by heavy metals content in brown algae

2017 ◽  
Vol 6 (2) ◽  
pp. 91-95
Author(s):  
Nadezhda Konstantinovna Khristoforova ◽  
Anna Dmitrievna Kobzar
Keyword(s):  
Heavy Metals ◽  
Sea Of Japan ◽  
Coastal Waters ◽  
Atmospheric Transport ◽  
The Sea Of Japan ◽  
High Concentration ◽  
The North ◽  
Recreational Pressure ◽  
North Western ◽  
Sargassum Miyabei

The paper contains the study of heavy metals in three species - Sargassum miyabei , Sargassum pallidum , Cystoseira crassipes in the coastal waters of the Posyet Bay. The analysis of the spatial distribution of trace elements revealed the highest contents of zinc, copper and nickel in the Troitsa Bight, due to recreational pressure and a high concentration of nickel and cadmium in Sivuchya Bight that was caused by transboundary atmospheric transport. All of detected concentrations exceed natural background values for the North-Western part of the Sea of Japan. The authors show that there has been a distinct change in the environmental situation in the the Posyet Bay since 1998: the concentration of lead has sharply decreased, the content of zinc, copper and cadmium has decreased, it could be connected with influence reduction in the free economic zone, located on the Chinese side on the Tumannaya River.

The barnacleBalanus rostratusand its habitats in the north-western part of the Sea of Japan

Ophelia ◽  
1998 ◽  
Vol 49 (1) ◽  
pp. 47-54 ◽  
Author(s):  
Alla V. Silina ◽  
Ida I. Ovsyannikova
Keyword(s):  
Sea Of Japan ◽  
The Sea Of Japan ◽  
The North ◽  
North Western

Distribution and some traits of biology of the elongated sculpin Alcichthys elongatus in the north-western part of the Sea of Japan

2011 ◽  
Vol 51 (3) ◽  
pp. 217-226 ◽  
Author(s):  
V. V. Panchenko ◽  
O. I. Pushchina ◽  
D. V. Antonenko ◽  
S. F. Solomatov ◽  
P. V. Kalchugin
Keyword(s):  
Sea Of Japan ◽  
The Sea Of Japan ◽  
The North ◽  
North Western

scholarly journals Description of a new species Gyraulus (Pulmonata: Planorbidae) from the land thermal spring Khakusy of Lake Baikal

ZooKeys ◽  
2018 ◽  
Vol 762 ◽  
pp. 1-12 ◽  
Author(s):  
Tatiana Sitnikova ◽  
Tatiana Peretolchina
Keyword(s):  
New Species ◽  
Lake Baikal ◽  
Thermal Spring ◽  
Morphological Characters ◽  
Shell Size ◽  
The North ◽  
The Family ◽  
North Eastern ◽  
Small Shell ◽  
A New Species

A new species of the family Planorbidae is described from the land thermal spring Khakusy, on the north-eastern shore of Lake Baikal. The description of Gyraulustakhteevi sp. n. includes morphological characters and gene sequences (COI of mtDNA) for the species separation from sister taxon Gyraulusacronicus (A. Férussac, 1807) collected from the small Krestovka River in-flowing into the south-western part of the Lake. The new species differs from G.acronicus in small shell size of adults, having smaller number of prostate folds (maximal up to 26 in G.takhteevi n. sp. vs. 40 in G.acronicus), a short preputium (approximately twice shorter than the phallotheca), and an elongated bursa copulatrix. The population of Gyraulustakhteevi sp. n. consists of two co-existent morphs: one of them has a narrow shell spire and the second is characterized by wide spire similar to the shell of G.acronicus. One of the two revealed haplotypes of the new species includes both morphs, while the second consists of snails with wide spired shells.

scholarly journals Laetantesicola Maris Gen. Nov., Sp. Nov. Isolated From the Sea of Japan Shallow Sediments.

2021 ◽  
Author(s):  
Lyudmila A. Romanenko ◽  
Valeriya V. Kurilenko ◽  
Nadezhda Yu. Chernysheva ◽  
Liudmila A. Tekutyeva ◽  
Peter V. Velansky ◽  
...  
Keyword(s):  
Sea Of Japan ◽  
Gene Sequence ◽  
Major Fatty Acid ◽  
The Sea Of Japan ◽  
Rrna Gene ◽  
Unidentified Phospholipid ◽  
Gene Sequence Analysis ◽  
The Family ◽  
Novel Genus And Species ◽  
Distinct Lineage

Abstract A Gram-negative, non-motile bacterium КММ 3653T was isolated from a sediment sample from the Sea of Japan seashore, Russia. On the basis of the 16S rRNA gene sequence analysis the strain КММ 3653T was positioned within the family Rhodobacteraceae (class Alphaproteobacteria) forming a distinct lineage with the highest gene sequence similarities to the members of the genera Pacificibacter (95.2-94.7%) and Nioella (95.1-94.5%), respectively. According to the phylogenomic tree based on 400 conserved protein sequences, strain КММ 3653T was placed in the cluster comprising Vannielia litorea, Nioella nitratireducens, Litoreibacter albidus and Pseudoruegeria aquimaris as a separate lineage adjacent to Vannielia litorea KCTC 32083T. The average nucleotide identity values between strain КММ 3653T and Vannielia litorea KCTC 32083T, Nioella nitratireducens KCTC 32417T, Litoreibacter albidus KMM 3851T, and Pseudoruegeria aquimaris CECT 7680T were 71.1, 70.3, 69.6, and 71.0%, respectively. Strain КММ 3653T contained Q-10 as the predominant ubiquinone and C18:1ω7c as the major fatty acid followed by C16:0. The polar lipids were phosphatidylcholine, phosphatidylglycerol, diphosphatidylglycerol, an unidentified phospholipid, two unidentified aminolipids, and five unidentified lipids. The DNA G+C content of 61.8 % was calculated from the genome sequence. Based on the phylogenetic evidence and distinctive phenotypic characteristics, strain КММ 3653T is proposed to be classified as a novel genus and species Laetantesicola maris gen. nov., sp. nov. The type strain of Laetantesicola maris gen. nov., sp. nov. is КММ 3653T (=KCTC 82575T).

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