نتایج جستجو برای: plankton in ropme sea area
تعداد نتایج: 17047964 فیلتر نتایج به سال:
Plankton research has always been an important area of biology. Due to various environmental issues and other research interests, plankton hatching and harnessing has been extremely red-marked zone for bio-aqua scientists recently. To counter this problem, no wireless sensor assisted technique or mechanism has yet not been devised. In this literature, we propose a novel approach to pursue this ...
Abstract The phenology, distribution, and size composition of plankton communities are changing rapidly in response to warming. This may lead shifts the prey fields planktivorous fish, which play a key role transferring energy up marine food chains. Here, we use 60 + years Continuous Plankton Recorder data explore temporal trends taxa community traits field lesser sandeels (Ammodytes marinus) N...
Planktonic cnidarians were investigated at six stations in the Boka Kotorska Bay from March 2009 to June 2010 by vertical hauls of plankton net from bottom to surface. In total, 12 species of hydromedusae and six species of siphonophores were found. With the exception of the instant blooms of Obelia spp. (341 ind. m-3 in December), hydromedusae were generally less frequent and abundant: their a...
dissolved organic carbon of different molecular weights from piration rates of marine plankton populations, p. 289-357. humic and clear waters. Appl. Environ. Microbial. 56: 1672In J. E. Hobbie and P. J. 1eB. Williams, [eds.], Heterotro1677. phic activity in the sea. Plenum. TURLEY, C. M., AND K. LOCHTE. 1990. Microbial response to ZWEIEL, U.L.,B. NORRMAN,AND A. HAGSTROM. 1993. Conthe input of ...
Samples historically collected and analysed by the Continuous Plankton Recorder survey were used to examine long-term (1958 to 1994) patterns in the normal diel vertical migrat~on (NDVM) behaviour of 7 copepod taxa in the North Sea: Calanus finmarchicus C5-C6; Calanus spp. Cl-C4; Cenlropages typicus; Centropages hamatus; Temora longicornis; Acartia clausii and Para-Pseudocalanus (this last grou...
Oceanographic data were obtained from ship cruises conducted from 1965 until 2003 in the neritic and oceanic Lebanese waters (Levantine Basin). They include, in addition to Plankton community diversity and abundance, main hydrographic data such as temperature, salinity, dissolved oxygen, water transparency, chlorophyll a, nitrates and phosphates. The purpose of this work was to elaborate a data...
The impacts of global climate change on the Basque coast and the pelagic systems within the southeastern Bay of Biscay are reviewed. Climate projections under greenhouse gas emission scenarios indicate that this area will experience changes in climate throughout the 21st century, including warming of surface air (especially heat wave episodes), intensification of extreme daily rainfall (10%), w...
The oligotrophic Sargasso Sea in the western part of the North Atlantic Ocean is influenced by a complex set of oceanographic features that might introduce nutrients and enhance productivity in certain areas. To increase our understanding of the variability in plankton communities and to determine the potential reasons why Atlantic eels Anguilla spp. use this area for spawning, we investigated ...
We present an overview of the plankton studies conducted during the last 25 years in the epipelagic offshore waters of the Mediterranean Sea. This quasi-enclosed sea is characterized by a rich and complex physical dynamics with distinctive traits, especially in regard to the thermohaline circulation. Recent investigations have basically confirmed the long-recognised oligotrophic nature of this ...
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