scholarly journals Interannual variation from 1997 to 2015 in bottom sediments and community structures of macrobenthic fauna in the Ariake Sea, western Kyushu, Japan

2020 ◽  
Vol 75 (0) ◽  
pp. 54-64
Author(s):  
Shin’ichi SATO ◽  
Mikio AZUMA ◽  
Takaki YAMANAKA ◽  
Yusuke YODA ◽  
Masatoshi MATSUO ◽  
...  
Keyword(s):  
Bottom Sediments ◽  
Interannual Variation ◽  
Community Structures ◽  
Ariake Sea ◽  
Macrobenthic Fauna

scholarly journals Interannual variation in water quality, bottom sediments, and community structures of macrobenthic fauna in the Isahaya Bay reservoir, western Kyushu, Japan

2020 ◽  
Vol 74 (2) ◽  
pp. 115-122
Author(s):  
Shin’ichi SATO ◽  
Mikio AZUMA ◽  
Masatoshi MATSUO ◽  
Akifumi OHTAKA ◽  
Shigeo KONDO ◽  
...  
Keyword(s):  
Water Quality ◽  
Bottom Sediments ◽  
Interannual Variation ◽  
Community Structures ◽  
Macrobenthic Fauna ◽  
Isahaya Bay

Interannual variation in life-cycle characteristics of the veined squid (Loligo forbesi) in Scottish (UK) waters

2005 ◽  
Vol 18 (4) ◽  
pp. 327-340 ◽  
Author(s):  
Graham J. Pierce ◽  
Alain F. Zuur ◽  
Jennifer M. Smith ◽  
M. Begoña Santos ◽  
Nick Bailey ◽  
...  
Keyword(s):  
Life Cycle ◽  
Interannual Variation ◽  
Loligo Forbesi

Diatoms in bottom sediments of thermokarst lakes of the Pechora Delta

2019 ◽  
pp. 285-290
Author(s):  
Elvira A. Zinnatova, Larisa A. Frolova ◽  
Larisa A. Frolova
Keyword(s):  
Bottom Sediments ◽  
Environmental Conditions ◽  
Sources Of Information ◽  
Thermokarst Lakes ◽  
Thermokarst Lake ◽  
Fouling Organisms ◽  
Diatom Complexes

The Northern lakes are good objects for paleoclimatic reconstructions. One of the sources of information about changes in the ecosystems of lakes are diatoms. The study of diatom complexes revealed 133 taxa belonging to 49 genera, 24 families, 13 orders and 3 classes in the bottom sediments of the thermokarst lake of the Pechora Delta. Dominated by the Holarctic representatives of benthic and fouling organisms giving preference to the alkaline environmental conditions.

Paleoecological study of bottom sediments of the lake Goluboye (Karelian Isthmus) according to the results of diatom analysis

2019 ◽  
pp. 265-269
Author(s):  
Angelina E. Shatalova ◽  
Uriy A. Kublitsky ◽  
Dmitry A. Subetto ◽  
Anna V. Ludikova ◽  
Alar Rosentau ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Bottom Sediments ◽  
Modern Science ◽  
Karelian Isthmus ◽  
The Baltic Sea ◽  
Diatom Analysis ◽  
North West ◽  
The North ◽  
Important Direction ◽  
The Baltic

The study of paleogeography of lakes is an actual and important direction in modern science. As part of the study of lakes in the North-West of the Karelian Isthmus, this analysis will establish the dynamics of salinity of objects, which will allow to reconstruct changes in the level of the Baltic Sea in the Holocene.

HEAVY METAL SPECIATION IN BOTTOM SEDIMENTS OF THE VYSHNEVOLOTSKY RESERVOIR

2018 ◽  
pp. 46-54
Author(s):  
O. A. Lipatnikova
Keyword(s):  
Heavy Metal ◽  
Organic Matter ◽  
Bottom Sediments ◽  
Metal Speciation ◽  
Organic Matter Content ◽  
Water Reservoir ◽  
Matter Content ◽  
Heavy Metal Speciation ◽  
Mobile Forms ◽  
Manganese Hydroxides

The study of heavy metal speciation in bottom sediments of the Vyshnevolotsky water reservoir is presented in this paper. Sequential selective procedure was used to determine the heavy metal speciation in bottom sediments and thermodynamic calculation — to determine ones in interstitial water. It has been shown that Mn are mainly presented in exchangeable and carbonate forms; for Fe, Zn, Pb и Co the forms are related to iron and manganese hydroxides is played an important role; and Cu and Ni are mainly associated with organic matter. In interstitial waters the main forms of heavy metal speciation are free ions for Zn, Ni, Co and Cd, carbonate complexes for Pb, fulvate complexes for Cu. Effects of particle size and organic matter content in sediments on distribution of mobile and potentially mobile forms of toxic elements have been revealed.

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