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On the occurrence of ichthyoplankton in the Saronikos Gulf, Aegean Sea, 1. Anchovy and sardines in 1969-1970-1971. ArchiMer
Yannopoulos, A; Yannopoulosa, C; Soteriades-vlahos, C.
The spawning and nursery grounds of 3 spp of commercial importance, Engraulis encrasicholus, Sardinella aurita and S. pilchardus were studied in the Saronikos Gulf during 1969, 1970 and 1971. The waters of the gulf are very rich due to turbulence caused by currents penetrating the gulf from the Aegean Sea. This turbulence causes bottom upwelling especially in the northern region which is shallower. At the height of their reproduction these fish represent 90-95 per cent of the entire ichthyoplankton, especially in the northern region. E. encrasicholus appears to be the most abundant sp with a maximum of 1099/m super(2) of surface waters (where the density of eggs = 536 and of larvae = 563). 232/m super(2) of surface water represents the maximum for S....
Tipo: Text Palavras-chave: Aegean sea; Saronikos gulf; Hydrography; Eutrophication; Reproduction; Sardines species; Anchovy; Ecology; Ichthyoplankton.
Ano: 1973 URL: http://archimer.ifremer.fr/doc/1973/publication-2160.pdf
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Causes of long-term changes in Aegean sea deep water ArchiMer
Boscolo, R; Bryden, H.
Recent observations of newly formed deep water in the Aegean sea prompts this analysis of whether such deep water could be formed locally by the combination of an increase in net evaporation and wintertime water mass transformation. River diversion projects in Russia and Egypt since the 1950s have effectively increased the amount of net evaporation over the eastern Mediterranean basin. Historical profiles show that low salinity intermediate waters separated the deep and upper waters in the Aegean in 1961-1962. Within a simple mixed layer model, imposing a small net evaporation of 10 cm.yr(-1) on the observed hydrographic conditions in March 1962 results in the gradual erosion of the low salinity intermediate waters. After 25 years, the low salinity...
Tipo: Text Palavras-chave: Échanges océan-atmosphère; Formation d’eau profonde; Circulation en Méditerranée; Budget hydrologique; Mer Égée; Air-sea interaction; Deep water formation; Mediterranean circulation; Hydrological budget; Aegean sea.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/00322/43329/42898.pdf
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A new contribution to the Late Quaternary tephrostratigraphy of the Mediterranean: Aegean Sea core LC21 ArchiMer
Satow, C.; Tomlinson, E. L.; Grant, K. M.; Albert, P. G.; Smith, V. C.; Manning, C. J.; Ottolini, L.; Wulf, S.; Rohling, E. J.; Lowe, J. J.; Blockley, S. P. E.; Menzies, M. A..
Tephra layers preserved in marine sediments can contribute to the reconstruction of volcanic histories and potentially act as stratigraphic isochrons to link together environmental records. Recent developments in the detection of volcanic ash (tephra) at levels where none is macroscopically visible (so-called ‘crypto-tephra’) have greatly enhanced the potential of tephrostratigraphy for synchronising environmental and archaeological records by expanding the areas over which tephras are found. In this paper, crypto-tephra extraction techniques allow the recovery of 8 non-visible tephra layers to add to the 9 visible layers in a marine sediment core (LC21) from the SE Aegean Sea to form the longest, single core record of volcanic activity in the Aegean Sea....
Tipo: Text Palavras-chave: Tephra; Trace elements; Santorini; Campanian Ignimbrite; Pantelleria; Kos; Yali; Aegean sea; Mediterranean.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00294/40498/39433.pdf
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