Ulyana SimakovaP.P. Shirshov Institute of Oceanology · Coastal Ecology lab
Ulyana Simakova
PhD
About
54
Publications
6,601
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
176
Citations
Citations since 2017
Introduction
Additional affiliations
March 2013 - March 2014
January 2009 - present
Education
July 2001 - July 2006
Publications
Publications (54)
In the exploration of the meiofauna associated with sponges and corals in the shallows of Cuba, we investigated nine species of sponges (Demospongia), wherein 26 nematode species were revealed. Most nematode specimens (50–95% of all individuals) in all sponge samples belonged to the family Desmodoridae (order Desmodorida), followed by the family Ch...
The state of macrozoobenthos and meiobenthos of the Gelendzhik Bay of the Black Sea was assessed in 2020–2021 based on three bottom grab surveys. Five types of biotopes were identified based on the particle size distribution of the bottom sediments, the redox potential of pore water, the content of organic carbon, and the type and presence of macro...
A new leptostracan species, Nebalia piipensis sp. nov., collected during the 82nd cruise of the RV Akademik M.A. Lavrentyev on the submarine Piip Volcano (the southwestern Bering Sea) at depths of 400–472 m, has been described. These leptostracans were abundant at bacterial mats and in assemblages of chemosymbiotrophic bivalves Calyptogena pacifica...
В ходе изучения фондовой коллекции двустворчатых моллюсков сем. Arcidae ИО РАН были найдены три образца анадар из Южно-Китайского моря, сходных на первый взгляд с видом A. kagoshimensis (предоставлены Ф.В. Сапожниковым, ист. – рынок г. Нячанг, Вьетнам). Эти образцы имели существенно отличающиеся от A. kagoshimensis морфологические характеристики. П...
The genus Staurolemma Körb., represented by the species S. omphalarioides (Anzi) P. M. Jørg. et Henssen, identified both by morphology and using DNA barcoding (ITS1-5.8S-ITS2 gene), is reported for the first time for Russia, based on materials collected in the North-Western Caucasus in the Utrish Reserve on the Abrau Peninsula. The genus Staurolemm...
The impact of ocean deoxygenation on marine ecosystems has recently been recognized as a global problem. The hypoxic layer, a notorious feature of the Black Sea, covers the entire basin at intermediate depths. To understand consequences of the rise of hypoxia in the sea environment, identifying factors that determine the distribution of biological...
В статье приводится информация о составе обрастания металлоконструкций на глубине 7…9 м. Обнаруженное сообщество представлено малым числом видов фито- и зообентоса и характеризуется как начальная стадия процесса обрастания. Биомасса зообентоса составляет около 40 г/м2, биомасса водорослей – около 5 г/м2. Обедненный состав и слабое количественное ра...
The impact of ocean deoxygenation on marine ecosystems has recently been recognized as a global problem. The hypoxic layer, a notorious feature of the Black Sea, covers the entire basin at intermediate depths. To understand consequences of the rise of hypoxia in the sea environment, identifying factors that determine the distribution of biological...
The occurrence of polychaete borers was recorded from the alien clam Anadara kagoshimensis (Tokunaga, 1906) at Chushka Spit near Port Kavkaz in January 2020. On the basis of morphological analysis,
the polychaetes were identified as Polydora websteri Hartman in Loosanoff & Engle, 1943, alien to the Azov-Black Sea basin. This species was recorded fo...
В январе 2020 г. на косе Чушка в районе порта Кавказ на двустворчатых моллюсках-вселенцах Anadara kagoshimensis (Tokunaga, 1906) было отмечено присутствие полихет-перфораторов. Полихеты были отмечены на 85% исследованных особей анадары. Морфологический анализ показал, что полихеты относятся к виду Polydora websteri Hartman in Loosanoff & Engle, 194...
В январе 2020 г. на косе Чушка в районе порта Кавказ на двустворчатых моллюсках-вселенцах Anadara kagoshimensis (Tokunaga, 1906) было отмечено присутствие полихет-перфораторов. Полихеты были отмечены на 85% исследованных особей анадары. Морфологический анализ показал, что полихеты относятся к виду Polydora websteri Hartman in Loosanoff & Engle, 194...
y the beginning of the 21st century, as a result of growing human activities, the ecosystems of the Black Sea underwent significant changes. The northeastern part of the Black Sea coast became overpopulated. Eutrophication, overfishing, sediment damping, bottom dredging, climate warming, and alien species introduction, all resulted in the plankton...
Evolutionary mechanisms driving the diversification of pelagic animals remain poorly understood, partly due to the high levels of gene flow in the open ocean. We use molecular phylogenetics, morphological, and phylogeographic approaches to test the allopatric speciation model in respect to the Atlantic krill genus Nematoscelis. Based on our observa...
Evolutionary mechanisms driving the diversification of pelagic animals remain poorly understood, partly due to the high levels of gene flow in the open ocean. We use molecular phylogenetics, morphological, and phylogeographic approaches to test the allopatric speciation model in respect to the Atlantic krill genus Nematoscelis. Based on our observa...
The Arctic climate is changing rapidly. The warming and resultant longer open water periods suggest a potential for expansion of marine vegetation along the vast Arctic coastline. We compiled and reviewed the scattered time series on Arctic marine vegetation and explored trends for macroalgae and eelgrass (Zostera marina). We identified a total of...
The Black Sea is the world's largest marine anoxic basin. The aim of this study is to identify key factors determining distribution of zoobenthos communities across the permanent pycno-halo-oxycline at the boundary of the Black Sea oxic zone. Two benthic surveys and measurements of the dissolved oxygen at a moored station were carried out at the te...
В издании описаны результаты проекта по систематическому планированию приоритетных для охраны районов в морях Российской Арктики, инициированного WWF России и выполненного в 2015–2017 гг. Впервые на русском языке подробно описана методика систематического природоохранного планирования с помощью платформы Марксан. Приведены общее описание и характер...
Macropodia czernjawskii (Brandt, 1880), described from the Black Sea, was ignored in the regional faunal accounts for more than a century, although it was recognised in the Mediterranean. Instead, M. longirostris (Fabricius, 1775) and M. rostrata (Linnaeus, 1761) were frequently listed for the Black Sea. We selected a lectotype and redescribed the...
The species composition and structure of bottom communities with a predominance of bivalve mollusks of
the genus Portlandia, which are widespread on the shelf of the Russian Arctic, were analyzed. Molecular genetic analysis confirmed that Portlandia aestuariorum and P. arctica are valid species; it had been shown that
all P. arctica tested from dif...
Проанализирован видовой состав и структура донных сообществ с преобладанием двустворчатых моллюсков рода Portlandia, широко распространенных на шельфе Российской Арктики. Молекулярно-генетический анализ подтвердил самостоятельность видов Portlandia aestuariorum и P. arctica и показал, что все образцы P. arctica из разных регионов принадлежат к одно...
Polychaete species Spio filicornis and Prionospio cirrifera are the most frequent and abundant representatives of the Spionidae family listed for the Black Sea. However, both species are recently redescribed from type localities (the coast of Greenland and the Kara Sea, respectively), their ranges are specified and the presence in the Black Sea is...
Currently, the genus Parathyasira Iredale, 1930, typified by P. resupina Iredale, 1930 from the Tasman Sea, consists of 10 accepted species. P. dunbari (Lubinsky, 1976) was originally described from shelf depths of the northwestern region of the Canadian archipelago. It was considered as a shallow-water high-Arctic species, which is endemic for the...
Oriental shrimp (Palaemon macrodactylus Rathbun, 1902) was recorded for the first time in the waters of the European part of Russia in the Kerch Strait (Sea of Azov, Chushka Spit coast, Krasnodar krai, Russia) in July 2018. The species natural geographic range is located in the northwestern Pacific Ocean, while the invasion range includes the Atlan...
The aim of the present study is to reveal the consequences of the blood ark (Anadara kagoshimensis) invasion of Taman Bay (the Sea of Azov), one of the biggest boreal brackish coastal lagoon. Anadara kagoshimensis was found there for the first time in 2003. During our work from 2003 to 2013, the blood arks were found at eleven of 83 stations in the...
An assessment of the presentability of the biotopes and benthic communities of the northwestern part of the Utrish Nature Reserve marine area for the Caucasian Black Sea coast has been conducted. The literary and original data on the state of benthos in the area from the Kerch Strait to Adler were examined. The studied area of the Utrish Natural Re...
The project to create a marine buffer zone of the Beringia National Park in order to prevent high environmental risks caused by climate and ice regime changes, as well as anthropogenic impact (fishing, tourism, shipping, oil and gas exploration on the shelf of Chukchi sea)
Key words: buffer zone, protected area, Beringia National Park, Chukotka
In 2016, we discovered for the first time the new for the Black sea flora species of macroalgae identified as "tralliella" stage of Bonnemaisonia hamifera Hariot. The introduction of which has an invasive character, and the impact on the ecosystem is hypothetically enormous. The aim of our work was to
study of this invasion along the Russian coast...
The structure of a fragment (523 nucleotide pairs) of the 1st subunit of mitochondrial cytochrome oxidase (COI) gene has been studied in the populations of alien crab Rhithropanopeus harrisii (family Panopeidae) that established in the basins of the Azov-Black and Caspian Seas in 1930–1950s. In the samples of 6 populations from this region, 4 haplo...
The first ecological survey in the tropical part of the northern Mid-Atlantic Ridge (MAR) was conducted between 17 °14’N and 16 °40’N in February-March 2015 during the 37th cruise of the RV Professor Logachev. Significant effort of the survey was aimed at studies of benthic non-vent soft sediment fauna at depths from 2270 m to 3900 m. Samples of th...
Primary production (PP) models of the Kara Sea are developed based on data collected on fall
expeditions (September–October 1993, 2007, and 2011) and their precision assessment utilizes the dataset
collected in September 2013. The algorithms for different model types (depth-integrated and depth-resolved)
are compared. The depth-resolved model perfo...
Research was implemented from September 15 through October 4, 2011 in the Kara Sea along transects located southeastwards Novaya Zemlya, in the St. Anna Trough, the Yenisei River estuary, and the adjacent shelf. The concentration of chlorophyll a was the highest in the photic zone (0.05–2.30 mg/m3, on average, 0.80 ± 0.37 mg/m3). The maximal concen...
Региональные алгоритмы первичной продукции Карского моря были разработаны по базе данных,
созданной в 3-х осенних экспедициях (сентябрь–октябрь 1993, 2007 и 2011 гг.). Верификация моде-
лей была проведена по данным, собранным в сентябре 2013 г. Сравнение адекватности различных
алгоритмов натурным данным показало, что модель с разрешением по глубине...
A varunid crab Brachynotus sexdentatus was reported as a common and abundant species in
the Sea of Azov in the 1930 – 1940s. Since then, its population has virtually disappeared or
at least strongly declined in this basin. This coincided with the appearance and spread of a
non-indigenous crab species Rhithropanopeus harrisii. At the same time B. se...
he White Sea is an enclave of the Arctic ocean. Paleontological, paleoecological, and archaeological data demonstrate that during the Holocene temperature maximum when the coasts of the White Sea were covered by broad-leaf forests, marine ecosystems retained the Arctic features. Our studies indicate that several types of subtidal (dominated by quah...
Tamanskij Bay opens into the Kerch Strait which connects the Black and the Azov seas and houses the shallow ecosystem which is the most important in the Russian part of the Black. Sea. This ecosystem is dominated by sea grasses (Zostera marina etc). We have been studying bottom sediment hydrocarbons distribution and biomarkers of the pollution in M...
We studied the characteristics of the Cystoseira (Cystoseira barbata C. Ag, Cystoseira crinita (Desf.) Bory) community at the North Caucasian coast of the Black Sea under the conditions of the pronounced sea-bottom relief,
namely, ridge- and steplike benches. It is shown that a number of parameters of the composition and community structure (the
sp...
The benthic algal coenosis, consisting of microphytobenthos, macrophytes, and microepiphytes, exhibited changes related to gradually increasing salinity in the Large Aral Sea from 2002 to 2005. Since 2000, the diversity has decreased from 159 species [Mirabdullayev, E.M., 2004. Succession of the ecosystems of the Aral Sea during its transition from...
Black Sea ecosystem has been transforming during no less than 30 years. One of the injured parts of the ecosystem is the Phyllophora community, which we investigated it in the vicinity of the Novorossisk. We collected samples from each type of microrelief (the top, the hollow and the reverse) on each level of the depth (3-25 m). Comparison of prese...
Projects
Projects (3)
To establish of a new research team to study the biodiversity of corals (Anthozoa, Cnidaria) and associated fauna at the premises of the Ocean Bottom Fauna Laboratory and the Marine Molecular Research Center of the Shirshov Institute of Oceanology of the Russian Academy of Sciences. The original collection material will be used to compare intra- and inter-species variability for nuclear and mitochondrial genes and develop a methodology for using museum material for molecular genetic studies.
1 Reveal current geographic distribution
2 Identify and compare parasitic coccomyxa strains
3 identify factors that determine distribution of coccomyxa
Zostera marina of Russian Arctic: distribution and genetic
