The genus Cystoseira s.l. (Ochrophyta, Fucales, Sargassaceae) in the Black Sea: morphological variability and molecular taxonomy of Gongolaria barbata and endemic Ericaria crinita f. bosphorica comb. nov.

Phytotaxa ◽  
2021 ◽  
Vol 480 (1) ◽  
pp. 1-21
Author(s):  
SOFIA S. SADOGURSKA ◽  
JOÃO NEIVA ◽  
ANNALISA FALACE ◽  
ESTER A. SERRÃO ◽  
ÁLVARO ISRAEL
Keyword(s):  
Mediterranean Sea ◽  
Black Sea ◽  
Molecular Taxonomy ◽  
Morphological Variability ◽  
Morphological Characteristics ◽  
Molecular Data ◽  
Morphological Data ◽  
The Black Sea ◽  
Morphological Identification ◽  
Additional Tool

Brown algae of the genus Cystoseira sensu lato form the most diverse and productive marine ecosystems throughout the Mediterranean Sea and have equal roles also in the Black Sea where they have been decreasing in the recent years. The taxonomy of Cystoseira s.l. taxa from the Black Sea is still not well understood, and questions arise when related taxa have to be delimited. In addition to morphological descriptions, this study provides for the first time molecular data of the Black Sea Cystoseira s.l. distinct morphologies as an additional tool to clarify their identities and phylogenetic affinities. The analysis of two mitochondrial markers (cytochrome oxidase subunit 1—COI, and 23S-tRNAVal intergenic spacer—mt-spacer) showed that Cystoseira s.l. specimens from the Black Sea belong to two recently resurrected genera, namely Gongolaria and Ericaria. Molecular data confirm the morphological identification of G. barbata, which is characterized by high morphological plasticity in the Black Sea. The morphological data presented in this study support the transition of G. barbata to the genus Gongolaria, which was previously proposed based solely on genetic data. For the Black Sea endemic taxon C. bosphorica, sequence divergence suggests conspecificity with Mediterranean Sea species E. crinita and E. barbatula. However, considering original morphological characteristics of the taxon, its geographical isolation, and endemism, the new combination Ericaria crinita f. bosphorica comb. nov. is proposed.

The taxonomy of the Caloplaca citrina group (Teloschistaceae) in the Black Sea region; with contributions to the cryptic species concept in lichenology

2009 ◽  
Vol 41 (6) ◽  
pp. 571-604 ◽  
Author(s):  
Jan VONDRÁK ◽  
Pavel ŘÍHA ◽  
Ulf ARUP ◽  
Ulrik SØCHTING
Keyword(s):  
Cryptic Species ◽  
Black Sea ◽  
Atlantic Coast ◽  
Morphological Characters ◽  
Molecular Data ◽  
The Black Sea ◽  
Morphological Identification ◽  
Secondary Chemistry ◽  
Black Sea Region ◽  
Taxonomic Importance

AbstractA new taxonomy of the Caloplaca citrina group in the Black Sea region is presented. It is based on the nrDNA ITS molecular data, chemistry (anthraquinone contents) and 20 morphological characters. Six species previously known in the region are accepted: Caloplaca arcis, C. calcitrapa, C. dichroa, C. flavocitrina, C. geleverjae, C. limonia. Five new species are described: Caloplaca arcisproxima, C. austrocitrina, C. communis, C. confusa and C. nigromarina. Seven further species, Caloplaca britannica, C. citrina, C. marina, C. maritima, C. microthallina, C. ora and C. phlogina are also treated briefly. Some maritime species known from the Atlantic coast of Europe are absent from the region, and, surprisingly, Caloplaca citrina s. str. could not be confirmed from the study area. A key to the species present in the region is provided, although morphological characters are of very limited value in this group. The variability and taxonomic importance of particular features are discussed. No significant differences in secondary chemistry were observed among the species.Many examples of convergence and some semi-cryptic species were revealed by molecular data. The term ‘semi-cryptic species’ is introduced here into lichenology for those species which cannot be clearly diagnosed by their morphology, but which are determined by other characters, mainly by their ecology and distribution. We propose to describe formally such species, in spite of difficulties with subsequent morphological identification.

scholarly journals First record of the Combtooth Blenny, Microlipophrys adriaticus (Steindachner & Kolombatovic, 1883) (Pisces, Blenniidae), for the Italian Ionian Sea

Check List ◽  
2015 ◽  
Vol 11 (3) ◽  
pp. 1646 ◽  
Author(s):  
F. Tiralongo ◽  
R. Baldacconi
Keyword(s):  
Mediterranean Sea ◽  
Black Sea ◽  
Adriatic Sea ◽  
First Record ◽  
The Black Sea ◽  
Ionian Sea ◽  
Sea Of Marmara ◽  
Limited Distribution ◽  
The North ◽  
The Mediterranean

Microlipophrys adriaticus (Steindachner & Kolombatovic, 1883) is an endemic blenny of the Mediterranean Sea. It is also known from the Sea of Marmara and the Black Sea. However, unlike other species of combtooth blennies, M. adriaticus is a fish with a limited distribution in Adriatic Sea, especially in the north, where it can be common. We report here the first record of this species from the waters of the Ionian Sea.

scholarly journals Where should we draw the lines between dinocyst “species”? Morphological continua in Black Sea dinocysts

2019 ◽  
Vol 38 (1) ◽  
pp. 55-65 ◽  
Author(s):  
Thomas M. Hoyle ◽  
Manuel Sala-Pérez ◽  
Francesca Sangiorgi
Keyword(s):  
Black Sea ◽  
Genetic Difference ◽  
Morphological Variability ◽  
Intraspecific Variability ◽  
Nutrient Status ◽  
The Black Sea ◽  
Genetic Sequencing ◽  
Morphological Variations ◽  
Intermediate Phenotypes ◽  
Primary Driver

Abstract. The morphology of dinoflagellate cysts (dinocysts) is related not only to the genetics of the motile dinoflagellate from which it derives, but is also dependent on a range of environmental factors including salinity, temperature and nutrient status. Although this knowledge improves our understanding of the drivers behind dinocyst morphological variations, it makes the taxonomy governing their description somewhat complex. In basins such as the Black Sea, where environmental change can be extreme and occurs on relatively short (millennial) timescales, taxonomy becomes particularly challenging. Morphological continua can be observed between described forms, displaying a large range of intermediate phenotypes that do not necessarily correspond to any genetic difference. As these morphological nuances may preserve information about palaeoenvironments, it is important to find a systematic method of characterising morphotypes. Here, we show a dinocyst matrix within which dinocysts are described according to their similarity to (or difference from) described forms based on key descriptive parameters. In the example set out here, cyst shape and degree of process and/or ectophragm development are taken as two key parameters in Pyxidinopsis psilata and Spiniferites cruciformis, and can allow the description of intermediate forms even though the definitions do not overlap. We review some frequently occurring morphotypes and propose that using matrices to show the gradual variation between endmember forms is the most pragmatic approach until cyst–theca studies and genetic sequencing can be used to demonstrate relationships between genotypes and morphotypes. As prior studies propose salinity to be a primary driver of intraspecific variability, the endmembers presented may represent salinity extremes within an overall brackish environment. Although we cannot assign each morphotype to a value or a range of an environmental parameter (e.g. salinity) as the different morphotypes can occur in the same sample, using this matrix allows preservation of information about morphological variability without creating taxonomic categories that are likely to require alteration if genetic evidence becomes available.

scholarly journals Taxonomic status of Flexopecten glaber ponticus (Bucquoy, Dautzenberg & Dollfus, 1889) – the Black Sea Flexopecten glaber (Linnaeus, 1758) (Bivalvia: Pectinidae)

2018 ◽  
Vol 3 (4) ◽  
pp. 14-28 ◽  
Author(s):  
I. P. Bondarev
Keyword(s):  
Comparative Analysis ◽  
Black Sea ◽  
Taxonomic Status ◽  
Morphological Data ◽  
Valid Species ◽  
The Black Sea ◽  
Marmara Sea ◽  
History Of ◽  
The Mediterranean ◽  
The Republic

The name Flexopecten glaber ponticus (Bucquoy, Dautzenberg & Dollfus, 1889) is generally used for the only Pectinidae representative inhabiting the Black Sea. It is registered in the Red Book of the Republic of Crimea as endemic subspecies reducing in amount. F. glaber ponticus is listed in WoRMS MolluscaBase as the only accepted subspecies of Flexopecten glaber (Linnaeus, 1758). In the past its taxonomic status has been changed from a geographic variety to valid species. The purpose of this study is to establish its correct taxonomic status. The study is based on a comparative analysis of conchological features of Flexopecten glaber and F. glaber ponticus in relation with the brief natural history of population in the Black Sea. Sampling was performed by snorkel equipment in Kazach’ya Bay (Black Sea, Crimea, Sevastopol) at 2–6 m depths. A total of 100 scallop specimens were sampled in September 2017. To assure a better understanding in a broader context those results are compared with the previously published morphological data based on the analysis of a large amount of material from the Black Sea and the Mediterranean Sea – Marmara Sea regions. Comparative analysis of conchological features of F. glaber ponticus from the Black Sea with F. glaber from the Mediterranean region has not revealed any distinct differences between them. Thus, there are no evidenced data for the diagnosis of F. glaber ponticus as a subspecies. Species F. glaber appeared in the Black Sea not earlier than 7,000 years ago and formed a well developed population less than 3,000 years ago. We have to conclude that the specified divergence period is not long enough to form a subspecies. As a result of the present survey the subspecific status of F. glaber ponticus is not retained and the name is placed in synonymy of the parent species Flexopecten glaber.

scholarly journals Wild Pacific oyster Magallana gigas (Thunberg, 1793) populations in Romanian Black Sea waters – friend or foe?

2019 ◽  
Vol 62 (2) ◽  
pp. 175-183
Author(s):  
Ana-Maria Krapal ◽  
Marin Ioniță ◽  
Mihaela Caplan ◽  
Elena Buhaciuc-Ioniță
Keyword(s):  
Dna Barcoding ◽  
Black Sea ◽  
Pacific Oyster ◽  
Small Population ◽  
The Black Sea ◽  
Morphological Identification ◽  
Oyster Population

A relatively small population of Magallana gigas was discovered near the Agigea harbor (Constanța, Romania) in 2017. The DNA barcoding method was used to confirm the morphological identification of the species. We consider this colony to be the first instance of a possibly stable Pacific oyster population in the Black Sea, outside of farming activities. The possible impact on native ecosystems is briefly discussed.

scholarly journals RUSSIAN-TURKISH WAR 1877-1878 IN IRANIAN HISTORIOGRAPHY OF THE XIX CENTURY AND MODERN IRANIAN HISTORIOGRAPHY

2020 ◽  
Vol 2 (1) ◽  
pp. 56-61
Author(s):  
MOHAMMAD SALMASIZADEH ◽  
Keyword(s):  
Mediterranean Sea ◽  
Ottoman Empire ◽  
Black Sea ◽  
World Trade ◽  
The Black Sea ◽  
Historical Event ◽  
Territorial Expansion ◽  
Eastern Question ◽  
The Mediterranean ◽  
Xix Century

The conflict between the Russian and Turkish in 1877-1878, though formed on the pretext of Russia's support for Christian nations under the rule of the Ottoman Empire, was actually part of the great scheme that European governments had begun to break up the Ottoman Empire and resolve the Eastern Question. The goals of these powers for world domination, that would sometimes results in wars among themselves, were mainly focused on expanding the territorial realm and winning economic gains. These goals were followed under the disguise of gaining freedom for Christians and securing independence for non-Turkish nations. The scientific and technological impairment of the Ottoman Empire compared to the European countries, accompanied by internal rivalries and frequent overthrow of the rulers, were some of the main weaknesses of the Ottoman state causing their demise. In the meantime, Russia was in pursue of its policy of territorial expansion and seeking access to warm waters. Russia's main objective was to obtain access to the Black Sea and the Mediterranean Sea. Having control over the Straits of Bosporus and Dardanelles that were under the rule of the Ottoman Empire would have connected Russia to the center of world trade in the Mediterranean and would have freed Russia from its land blockages and frozen ports. The causality, the start, and the ramifications of these wars have been reflected in the Iranian historiography of that era. Mohammad Hassan Khan Etemad al-Saltanah, a great historian of the Nasereddin Shah Qajar Age (1848-1898), using the reports of Iranian officials in Russia and the Ottoman Empire, and two books of Montazame Nasseri and Merat al-Boldan that were translations of selected articles from the French and Ottoman newspapers have recorded this important historical event. The reasons for Iranian attention to this historical event forms part of the modern and global historiography of Iran, in which attention to the developments in the Ottoman Empire plays an important role in Iran's acquaintance with modern civilization.

Verruca stroemia and Verruca spengleri (Crustacea: Cirripedia): distribution in the north-eastern Atlantic and the Mediterranean Sea

2003 ◽  
Vol 83 (1) ◽  
pp. 89-93 ◽  
Author(s):  
Paulo S. Young ◽  
Helmut Zibrowius ◽  
Ghazi Bitar
Keyword(s):  
Mediterranean Sea ◽  
Black Sea ◽  
Geographic Distribution ◽  
Deep Water ◽  
Southern Spain ◽  
The Black Sea ◽  
The North ◽  
North Eastern ◽  
The Mediterranean ◽  
Gorringe Bank

The geographic distribution of Verruca stroemia and V. spengleri are reviewed. Verruca stroemia ranges from the White, Barents, Norwegian, and North Seas south to Portugal to the Algarve and to Gorringe Bank. All of the records of this species from the Mediterranean Sea are considered to be V. spengleri. Verruca spengleri occurs in the Azores and Madeira archipelagos, in southern Spain (Cádiz), throughout the Mediterranean Sea from Gibraltar to Lebanon, and in the Black Sea. But a distinct deep-water Verruca species seems to occur in the deep Mediterranean.

IVAN MIKHAILOVICH OVCHINNIKOV (1931–2000). TO THE 90TH ANNIVERSARY OF THE BIRTH OF THE OCEAN SCIENTIST

2021 ◽  
Vol 49 (3) ◽  
pp. 179-189
Author(s):  
A. G. Zatsepin ◽  
R. D. Kosyan ◽  
S. B. Kuklev ◽  
I. Y. Gertman ◽  
N. I. Kuzevanova ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Black Sea ◽  
Experimental Research ◽  
Ussr Academy ◽  
Mesoscale Eddy ◽  
The Black Sea ◽  
Research Station ◽  
90Th Anniversary ◽  
Life Path ◽  
Academy Of Sciences

This article is dedicated to the 90th anniversary of Ivan Mikhailovich Ovchinnikov (1931– 2000) – Doctor of Geographical Sciences, former Director of the Black Sea Experimental Research Station (CHENIS) Institute of Oceanology of the USSR Academy of Sciences, a remarkable scientist-oceanographer, researcher of the Equatorial counterflow, mesoscale eddy, hydrological conditions of the Mediterranean Sea. The article reflects the life path of I.M. Ovchinnikov and his main achievements in Russian oceanology.

scholarly journals A new Diplura species from Georgia caves, Plusiocampa (Plusiocampa) imereti (Diplura, Campodeidae), with morphological and molecular data

2021 ◽  
Vol 778 ◽  
pp. 71-85
Author(s):  
Alberto Sendra ◽  
Ferran Palero ◽  
Alba Sánchez-García ◽  
Alberto Jiménez-Valverde ◽  
Jesús Selfa ◽  
...  
Keyword(s):  
New Species ◽  
Maximum Likelihood ◽  
Black Sea ◽  
Molecular Data ◽  
The Black Sea ◽  
Deep Zone ◽  
Black Sea Region ◽  
Maximum Likelihood Phylogenetic Tree ◽  
Low Altitude ◽  
Morphological And Molecular Data

A new dipluran species, Plusiocampa (Plusiocampa) imereti Sendra & Barjadze sp. nov., from the deep zone in three caves in the Imereti region, Georgia, is described. This new troglobitic Plusiocampa is an addition to four others known Diplura from around the Black Sea region, two Dydimocampa and two Plusiocampa s. str. The present study also provides the first CO1 sequences for the Plusiocampinae taxa and the first molecular data for cave-dwelling Plusiocampa species. Although bootstrap values were low, the maximum-likelihood phylogenetic tree grouped Plusiocampa (P.) imereti Sendra & Barjadze sp. nov. with two Plusiocampa s. str. species from Eastern Europe. Morphologically, P. (P.) imereti Sendra & Barjadze sp. nov. is closely related to two cave-dwelling species: Plusiocampa (Plusiocampa) glabra Condé, 1984 and Plusiocampa (P.) chiosensis Sendra & Gasparo, 2020. The new species can be distinguished by the presence of lateral anterior macrosetae on metanotum, more uneven claws, and the presence of 2+2 lateral anterior macrosetae on middle urotergites. The five species currently known for the Black Sea region inhabit caves located at low altitude but with no influence from former glacial or permafrost processes.

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