Consulta: subjectFacets:"Marmara Sea"
Registros recuperados: 11
Data/hora: 01/06/2024 16:22:11

Солёностная и температурная толерантность морских копепод Acarita clausi и Acarita tonsa в эмбриональный период
Provedor de dados: 13
Autores: Губарева, Е. С.; Светличный, Л. С.
Speed of sinking to salinity and temperature gradients of the Marmara and Black Seas was calculated for eggs of Acartia clausi and A. tonsa laid in the upper layers basing on egg mass densities. The effect of gradual changing of temperature and salinity on egg hatching success of these species was studied.
Tipo: Book Section
Palavras-chave: Acartia clausi; Acartia tonsa; Eggs; Density; Hatching success; Marmara Sea; Black Sea.
Ano: 2010
URL: http://repository.ibss.org.ua/dspace/handle/99011/1848

Распределение живого и мёртвого мезозоопланктона в прибосфорских районах Чёрного и Мраморного морей: солёностная толерантность Acartia clausi и A. tonsa.
Provedor de dados: 13
Autores: Губарева, Е. С.; Светличный, Л. С.; Ишинибилир, М.; Бельмонте, Г.
В прибосфорских районах Чёрного и Мраморного морей в октябре 2005 г. наблюдалось снижение биомассы кормового зоопланктона с 6102.6 до 2363.7 мг м-2 по направлению к Мраморному морю. Эта тенденция обусловлена резким изменением биомассы 4 видов копепод – Calanus euxinus, Pseudocalanus elongatus, Acartia clausi и A. tonsa. Одновременно с этим возрастала доля мёртвых организмов. Максимальная доля мёртвых особей A. clausi (88 %) отмечена в слое солёностного градиента Мраморного моря, что указывает на низкую галотолерантность этого вида. В лабораторных кратковременных экспериментах A. clausi, собранные у входа в пролив Босфор, погибали при повышении солёности с 18.9 до 29.4 ‰. Выживаемость A. clausi из удалённого от Босфора района Принцевых о-вов оказалась более...
Tipo: Journal Contribution
Palavras-chave: Мезозоопланктон; Биомасса; Численность; Выживаемость; Acartia clausi; Acartia tonsa; Солёностная толерантность; Скорость дыхания; Двигательная активность; Чёрное море; Мраморное море; Mesozooplankton; Biomass; Abundance; Survival; Acartia clausi; Acartia tonsa; Salinity tolerance; Respiratory rate; Locomotory activity; Black Sea; Marmara Sea; Біомаса; Чисельність; Виживаність; Солоністна толерантність; Швидкість дихання; Рухова активність; Чорне море; Мармурове море.
Ano: 2008
URL: http://repository.ibss.org.ua/dspace/handle/99011/829

Распределение живого и мёртвого мезозоопланктона в прибосфорских районах Чёрного и Мраморного морей: солёностная толерантность Acartia clausi и A. tonsa.
Provedor de dados: 13
Autores: Губарева, Е. С.; Светличный, Л. С.; Ишинибилир, М.; Бельмонте, Г.
В прибосфорских районах Чёрного и Мраморного морей в октябре 2005 г. наблюдалось снижение биомассы кормового зоопланктона с 6102.6 до 2363.7 мг м-2 по направлению к Мраморному морю. Эта тенденция обусловлена резким изменением биомассы 4 видов копепод – Calanus euxinus, Pseudocalanus elongatus, Acartia clausi и A. tonsa. Одновременно с этим возрастала доля мёртвых организмов. Максимальная доля мёртвых особей A. clausi (88 %) отмечена в слое солёностного градиента Мраморного моря, что указывает на низкую галотолерантность этого вида. В лабораторных кратковременных экспериментах A. clausi, собранные у входа в пролив Босфор, погибали при повышении солёности с 18.9 до 29.4 ‰. Выживаемость A. clausi из удалённого от Босфора района Принцевых о-вов оказалась более...
Tipo: Journal Contribution
Palavras-chave: Мезозоопланктон; Биомасса; Численность; Выживаемость; Acartia clausi; Acartia tonsa; Солёностная толерантность; Скорость дыхания; Двигательная активность; Чёрное море; Мраморное море; Mesozooplankton; Biomass; Abundance; Survival; Acartia clausi; Acartia tonsa; Salinity tolerance; Respiratory rate; Locomotory activity; Black Sea; Marmara Sea; Біомаса; Чисельність; Виживаність; Солоністна толерантність; Швидкість дихання; Рухова активність; Чорне море; Мармурове море.
Ano: 2008
URL: http://repository.ibss.org.ua/dspace/handle/99011/829

Gas emissions and active tectonics within the submerged section of the North Anatolian Fault zone in the Sea of Marmara
Provedor de dados: 5
Autores: Geli, Louis; Henry, P; Zitter, T; Dupre, Stephanie; Tryon, M; Cagatay, M; De Lepinay, B; Le Pichon, X; Sengor, A; Gorur, N; Natalin, B; Ucarkus, G; Oezeren, S; Volker, D; Gasperini, L; Burnard, P; Bourlange, S.
The submerged section of the North Anatolian fault within the Marmara Sea was investigated using acoustic techniques and submersible dives. Most gas emissions in the water column were found near the surface expression of known active faults. Gas emissions are unevenly distributed. The linear fault segment crossing the Central High and forming a seismic gap - as it has not ruptured since 1766, based on historical seismicity [Ambraseys, N.N., and Jackson, J.A., (2000), Seismicity of the Sea of Marmara (Turkey) since 1500, Geophys. J. Int., 141, (3), F1-F6. (doi:10.1046/j.1365-246x.2000.00137.x: Ambraseys, N., (2002), The seismic activity of the Marmara Region over the last 2000 years, Bull. Seism. Soc. Am., 92, 1-18; Parson, T., (2004), Recalculated...
Tipo: Text
Palavras-chave: North Anatolian Fault; Marmara Sea; Gas emission; Fluids; Seismicity.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4681.pdf

First insights into the structure and environmental setting of cold-seep communities in the Marmara Sea
Provedor de dados: 5
Autores: Ritt, Benedicte; Sarrazin, Jozee; Caprais, Jean-claude; Noel, Philippe; Gauthier, Olivier; Pierre, Catherine; Henry, Pierre; Desbruyeres, Daniel.
A brackish-water cold seep on the North Anatolian Fault (NAF) in the Marmara Sea was investigated with the Nautile submersible during the MarNaut cruise in 2007. This active zone has already been surveyed and revealed evidence of active seeping on the seafloor, such as bubble emissions, patches of reduced sediments, microbial mats and authigenic carbonate crusts. MarNaut was the first opportunity to sample benthic communities in the three most common microhabitats (bioturbated and reduced sediments, carbonate crust) and to examine their relationships with environmental conditions. To do so, faunal communities were sampled and chemical measurements were taken close to the organisms. According to diversity indices, the bioturbated microhabitat exhibited the...
Tipo: Text
Palavras-chave: Marmara Sea; Cold seep; Benthic fauna; Biological diversity; Environmental conditions; Chemosynthetic.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00014/12506/9528.pdf

The timing and evolution of the post-glacial transgression across the Sea of Marmara shelf south of Istanbul
Provedor de dados: 5
Autores: Eris, K; Ryan, W; Cagatay, M; Sancar, U; Lericolais, Gilles; Menot, G; Bard, E.
High-resolution reflection seismic profiles with core analyses of sedimentary sequence near the Sea of Marmara (SoM) entrance to the Strait of İstanbul (SoI, Bosphorus) provide detailed record of sealevel changes since the Late Glacial Maximum (LGM). The sequence is deposited over the LGM erosional surface at a maximum depth of -105 m. It includes seven seismic units that can be confidently correlated with 14C-dated sedimentary units in the cores. Unit 6 represents levee deposits of the paleo-SoI channel that was deposited by a Black Sea outflow during 11.2-10.6 kyr BP. The reflection surfaces at base of Unit 5 and 4 correspond to wave-cut terraces at -71and -63 m, respectively, and are estimated to be 10.6 and 9.8 kyr BP. The seismic Unit 2, overlaying a...
Tipo: Text
Palavras-chave: Sapropel; Delta; Marmara Sea; Holocene; Sea level; Seismic stratigraphy.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3574.pdf

No significant steady state surface creep along the North Anatolian Fault offshore Istanbul: Results of 6 months of seafloor acoustic ranging
Provedor de dados: 5
Autores: Sakic, P.; Piete, Helene; Ballu, V.; Royer, J. -y.; Kopp, H.; Lange, D.; Petersen, F.; Ozeren, M. S.; Ergintav, S.; Geli, Louis; Henry, P.; Deschamps, Anne.
The submarine Istanbul-Silivri fault segment, within 15 km of Istanbul, is the only portion of the North Anatolian Fault that has not ruptured in the last 250 years. We report first results of a seafloor acoustic ranging experiment to quantify current horizontal deformation along this segment and assess whether the segment is creeping aseismically or accumulating stress to be released in a future event. Ten transponders were installed to monitor length variations along 15 baselines. A joint least squares inversion for across-fault baseline changes, accounting for sound speed drift at each transponder, precludes fault displacement rates larger than a few millimeters per year during the 6 month observation period. Forward modeling shows that the data better...
Tipo: Text
Palavras-chave: Seafloor geodesy; North Anatolian Fault; Marmara Sea; Acoustic ranging.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00344/45513/45067.pdf

Integrative study of a new cold-seep mussel (Mollusca: Bivalvia) associated with chemosynthetic symbionts in the Marmara Sea
Provedor de dados: 5
Autores: Ritt, Benedicte; Duperron, Sebastien; Lorion, Julien; Lazar, Cassandre; Sarrazin, Jozee.
Recently, small Idas-like mussels have been discovered living on carbonate crusts associated with cold-seeps in the Marmara Sea. These mussels, here referred to as Idas-like nov. sp., differ morphologically and genetically from another species identified as Idas aff. modiolaeformis, living in the same type of ecosystem in the Nile Deep-Sea Fan (eastern Mediterranean Sea). A phylogenetic analysis confirms the distinction between the two species, which belong to highly divergent lineages. Carbon stable isotope values, as well as the detection of thiotroph-related bacteria in the gill tissue, support the presence of a symbiotic, thiotroph-derived nutrition. In contrast, Idas aff. modiolaeformis displays six different types of symbionts. Finally our...
Tipo: Text
Palavras-chave: Mytilidae; Idas-like; Cold-seeps; Marmara Sea; Phylogeny; Symbiosis; Stable isotopes.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00098/20915/19672.pdf

Methane-derived stromatolitic carbonate crust from an active fluid seepage in the western basin of the Sea of Marmara: mineralogical, isotopic and molecular geochemical characterization
Provedor de dados: 5
Autores: Akhoudas, C.; Chevalier, N.; Blanc-valleron, M. -m.; Klein, V.; Mendez-millan, M.; Demange, J.; Dalliah, S.; Rommevaux, V.; Boudouma, O.; Pierre, C.; Ruffine, Livio.
Cold seeps along the North Anatolian fault in the Sea of Marmara (Turkey) were explored during submersible dives of the Marsite cruise in November 2014 when sediments, pore waters and carbonate crusts were sampled at active fluid seeping sites. In this study, we investigate the mineralogy, carbon and oxygen isotopic compositions and the lipid biomarkers of a carbonate crust from the western Tekirdağ basin of the Sea of Marmara. This crust exhibits a laminated domal structure that resembles stromatolite. The mineralogy of authigenic seep-carbonate is mostly represented by aragonite associated with minor amounts of high-magnesian calcite. The abundance of pyrite associated with the authigenic seep-carbonate points to very intense bacterial sulfate reduction....
Tipo: Text
Palavras-chave: Marmara Sea; Tekirdag Basin; Methane; Authigenic seep-carbonate; Sulfate reduction; Anaerobic oxidation of methane; Stromatolitic structure; Stable isotopes; Lipid biomarkers.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00417/52857/53764.pdf

Constraints on fluid origins and migration velocities along the Marmara Main Fault (Sea of Marmara, Turkey) using helium isotopes
Provedor de dados: 5
Autores: Burnard, P.; Bourlange, S.; Henry, Pierre; Geli, Louis; Tryon, M. D.; Natal'In, B.; Sengor, A. M. C.; Ozeren, M. S.; Cagatay, M. N.
Fluids venting from the submarine portion of the Marmara Main Fault (part of the North Anatolian Fault system, Turkey) were sampled in Ti bottles deployed by submersible. The fluids consist of mixtures of fault derived gases, fault related cold seep fluids, and ambient seawater; these components can readily be distinguished using the isotopes of He and the He/Ne ratios. He-3/He-4 ratios range between 0.03 +/- 0.1 and 4.9 +/- 0.4 Ra, indicating that both crustal and mantle derived sources of helium are sampled by the fault. The dominant gas in all the samples analyzed is methane with the abundance of CO2 below detection (&lt;= 2%) in the mantle rich (high He-3/He-4) fluids. This is in contrast to nearly all mantle derived fluids where the C species are...
Tipo: Text
Palavras-chave: Fluids; Gas emission; Helium; Marmara Sea; North Anatolian Fault.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00098/20954/18576.pdf

Reply to Comment on "The timing and evolution of the post-glacial transgression across the Sea of Marmara shelf south of Istanbul" by Hiscott et al., Marine Geology 248, 228-236
Provedor de dados: 5
Autores: Eris, K. K.; Ryan, W. B. F.; Cagatay, M. N.; Lericolais, Gilles; Sancar, U.; Bard, E.; Menot, G.
In their comment Hiscott and co-authors adhere rigidly to ages and sources for sedimentary units in the subsurface of the Marmara shelf that they have previously reported in their publications from 2002 through 2007. This adherence is in spite of a superior age-depth model from our 13 m-long sediment core that penetrated deeply into the deposits under consideration and in disregard to the results of subsequent more-detailed and full-coverage mapping of the region under scrutiny. The age revisions are dismissed by the authors of the comment as representing sediments severely disturbed during coring. We rebut this criticism. The Bosporus source attributed by them to the sedimentary units sampled and dated by us appears to be driven by their conception that...
Tipo: Text
Palavras-chave: Spillway; Black Sea; Marmara Sea; Dardanelles; Bosporus.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-5915.pdf