scholarly journals New finding of the epitoniid Cirsotrema matugisiense (Ozaki,1958) (Mollusca: Gastropoda) in the Sea of Japan

2020 ◽  
Vol 24 (1/2) ◽  
pp. 61-66
Author(s):  
Boris I. Sirenko ◽  
Evgeny N. Drobyazin
Keyword(s):  
Key Words ◽  
Sea Of Japan ◽  
The Other ◽  
The Sea Of Japan ◽  
The Family ◽  
New Finding ◽  
Upper Third ◽  
Different Thickness

We describe a new finding of Cirsotrema matugisiense (Ozaki, 1958) from the northern Sea of Japan. This species differs from the other species of the family Epitoniidae having few low, flattened, wide spiral ribs throughout the whole surface of each whorl excluding the base. Most similar to C. matugisiense is Amaea iwaotakii Azuma, 1961 which differs from the former in having the whorls with many distinct minute spiral striae except on the upper third of each whorl (vs. a few low, flattened, wide spiral ribs throughout the whole surface of each whorl excluding the base in C. matugisiense); all axial ribs are rather similar in size (vs. the axial ribs of different thickness, especially on the last whorl in C. matugisiense). Key words: Gastropoda, Epitoniidae, Cirsotrema, Sakhalin, Sea of Japan. Описана новая находка гастроподы Cirsotrema matugisiense (Ozaki, 1958) из Японского моря. Этот вид хорошо отличается от других видов семейства Epitoniidae наличием 6 низких, уплощенных, широких спиральных ребер на всей поверхности каждого оборота, исключая основание. Наиболее сходным c C. matugisiense видом является Amaea iwaotakii Azuma, 1961, который отличается от него наличием оборотов раковины с многими отчетливыми, мелкими спиральными бороздками за исключением верхней 1/3 каждого оборота (несколько низких, уплощенных, широких спиральных ребер на всей поверхности каждого оборота, исключая основание у C. matugisiense); все осевые ребра довольно сходны по размеру (осевые ребра различной толщины особенно на последнем обороте у C. matugisiense). Ключевые слова: Gastropoda, Epitoniidae, Cirsotrema, Сахалин, Японское море.

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 Henricia djakonovisp. nov. (Echinodermata, Echinasteridae): a new sea star species from the Sea of Japan

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e2863 ◽  
Author(s):  
Anton Chichvarkhin
Keyword(s):  
New Species ◽  
Sea Of Japan ◽  
Common Species ◽  
Sympatric Species ◽  
Variable Number ◽  
The Other ◽  
The Sea Of Japan ◽  
Sea Star ◽  
The Pacific ◽  
Russian Waters

A new sea star species,H. djakonovisp.n., was discovered in Rudnaya Bay in the Sea of Japan. This is a sympatric species of the well-known and common speciesHenricia pseudoleviusculaDjakonov, 1958. Both species are similar in body size and proportions, shape of skeletal plates, and life coloration, which distinguishes them from the otherHenriciaspecies inhabiting the Sea of Japan. Nevertheless, these species can be distinguished by their abactinal spines: in both species, they are short and barrel-like, but the new species is the onlyHenriciaspecies in Russian waters of the Pacific that possesses such spines with a massive, smooth, bullet-like tip. The spines inH. pseudoleviusculaare crowned with a variable number of well-developed thorns. About half (<50%) of the abactinal pseudopaxillae in the new species are oval, not crescent-shaped as inH. pseudoleviuscula.

Seasonal Variation of Radon Daughters Concentrations in the Atmosphere and in Precipitation at the Japanese Coast of the Sea of Japan

1988 ◽  
Vol 24 (1-4) ◽  
pp. 93-95 ◽  
Author(s):  
T. Nishikawa ◽  
S. Okabe ◽  
M. Aoki
Keyword(s):  
Seasonal Variation ◽  
Sea Of Japan ◽  
Coastal Region ◽  
The Other ◽  
The Sea Of Japan ◽  
Heavy Snowfall ◽  
Air Masses ◽  
Japanese Coast ◽  
Radon Daughters ◽  
Atmospheric Radon

Abstract The atmospheric radon daughters concentration at Fukui in the Japanese coastal region of the Sea of Japan shows a seasonal variation whose high values appear in summer and low values in winter. On the other hand, the radon daughters concentration in precipitation at Fukui and that in the maritime atmosphere over the Sea of Japan are high in winter and low in summer. It is concluded from these phenomena that the greater part of the continental radon and its daughters are transported by seasonal winds from Siberia and China to Japan across the Sea of Japan in winter. However, when the air masses approach the shore, the cumulonimbus grows and the heavy snowfall scavenges out the radon daughters from the air masses in large quantities at the Japanese coastal region of the Sea of Japan.

First occourence of the family Glaresidae in Italy, with description of the new species Glaresis gentile from Sardinia (Coleoptera: Scarabaeoidea: Glaresidae)

2020 ◽  
Vol 15 (2) ◽  
pp. 44-53
Author(s):  
STEFANO ZIANI ◽  
MARCO ULIANA ◽  
ROBERTO RATTU
Keyword(s):  
New Species ◽  
Key Words ◽  
North Africa ◽  
Sand Dunes ◽  
First Record ◽  
The Other ◽  
European Species ◽  
The Family ◽  
Western European ◽  
Species Taxonomy

Glaresis gentile sp. nov. is described from southwestern Sardinia, Italy, providing the first record of the family Glaresidae from Italy. The new species is compared with the other western European species and with some other taxa described from North Africa. It appears to be closest to the poorly known Iberian G. thiniensis Verdú & Galante, 2001, whose aedeagus morphology is precised. Finally, a key to the European species is provided. Key words: Scarabaeoidea, Glaresidae, Glaresis, new species, taxonomy, Sardinia, Spain, sand dunes

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).

scholarly journals POLLEN ATAU SERBUK SARI : ASPEK MORFOLOGI, SISTEMATIKA DAN APLIKASINYA PADA TUMBUHAN KELUARGA MENTOL

2017 ◽  
Vol 2 (1) ◽  
pp. 12
Author(s):  
Sudarmono Sudarmono ◽  
Sahromi Sahromi
Keyword(s):  
Key Words ◽  
The Other ◽  
Dominant Factor ◽  
Cross Pollination ◽  
Stigma Surface ◽  
The Family ◽  
Male Organ ◽  
The Cross ◽  
Plant Pollen ◽  
Species Member

Pollen Powder or Sari : Aspects of Morphology, Systematics and Application on Menthol Family Plant          Pollen is the important component of plant to develop through reproductive. Pollen is the male organ of plants that plays an important role in the process of the evolution of plants. Menthol family plants (the Family Lamiaceae) is one of biggest families after Asteraceae. The process of the cross breeding often dominates the process of the evolution to the ment al Family. The research on the menthol Family's pollen aimed to know the affinity and the process of his pollination. The form of pollen of the Family Lamiaceae, was round and hexacolpate, the form was the same as the species member with their relatives. In the process of pollination often helped by the bee where pollen that clung to the abdomen part and the chest of the bee and moved to the other flower where the cross-pollination happen. The process of the cross-pollination happened also because of the same of maturity time between pollen of male and the stigma surface of female. The seed was still being the dominant factor in the reproductive in the Family Lamiaceae. Key words : Pollen, Pollination, Lamiaceae, the Mint family, the bee, the seed Abstrak          Serbuk sari atau dikenal dengan pollen merupakan komponen penting tanaman untuk berkembang melalui reproduktif. Serbuk sari merupakan organ jantan pada tumbuhan yang berperan penting dalam proses evolusi tumbuhan. Tumbuhan Keluarga Mentol (Famili Lamiaceae) merupakan salah satu Famili yang terbesar setelah Asteraceae. Proses perkawinan silang banyak mendominasi proses evolusi pada Keluarga Mentol. Penelitian terhadap serbuk sari Keluarga Mentol bertujuan untuk mengetahui kekerabatan dan proses penyerbukannya. Bentuk morfologi serbuk sari pada Famili Lamiaceae, yaitu bulat dan heksakolpat (hexacolpate), bentuk yang sama dengan jenis – jenis anggota Famili Lamiaceae. Pada proses penyerbukan banyak dibantu oleh lebah dimana pollen yang menempel pada bagian perut dan dada lebah penyerbuk dan berpindah pada bunga yang lain sehingga terjadi penyerbukan silang. Proses penyerbukan silang terjadi juga karena adanya waktu pemasakan yang sama antara serbuk sari sebagai organ jantan dan kepala putik sebagai organ betina. Biji masih merupakan faktor yang dominan pada perbanyakan Famili Lamiaceae.Kata kunci : Serbuk sari, Pollen, Lamiaceae, Keluarga Mentol, Lebah, biji.

What Has Been Happening After Oil Spill On Sand Beach

1999 ◽  
Vol 1999 (1) ◽  
pp. 1083-1085
Author(s):  
Nobuhiro Sawano
Keyword(s):  
Sea Of Japan ◽  
Oil Spill ◽  
The Other ◽  
The Sea Of Japan ◽  
Great Role ◽  
Environmental Sensitivity ◽  
Sand Beach ◽  
Heavy Machinery ◽  
One Year

ABSTRACT The Russian tanker Nakhodka spilled approximately 86,600 kiloliters of heavy C oil in the Sea of Japan on January 2, 1997. By this accident, more than 2,000 kilometers of coastline along the Sea of Japan has been affected. Spilt oil was stranded on a 4-kilometer sand beach from Katano to Shioya on January 7. Soon after the oil beached, recovery works were done by heavy machinery without taking account of plant vegetation. These recovery works were completed with a large amount of oil mixed in with the sand. Plant vegetation on this beach was seriously damaged. One year after the oil spill, many parts of the plant vegetation disappeared here and there on this beach. It has become clear that plant vegetation plays a great role in protecting sand beach from erosion., Observing this case, environmental sensitivity of sand beaches should be classified into two groups: one is sand beach with plant vegetation, the other is without plant vegetation. The former is more sensitive.

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.

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