Calanoid copepod, cladoceran, and rotifer eggs in sea-bottom sediments of northern Californian coastal waters: Identification, occurrence and hatching

1990 ◽  
Vol 105 (3) ◽  
pp. 413-418 ◽  
Author(s):  
N. H. Marcus
Keyword(s):  
Bottom Sediments ◽  
Coastal Waters ◽  
Calanoid Copepod ◽  
Sea Bottom

Plutonium and americium in the deep Black Sea bottom sediments

2021 ◽  
Vol 229-230 ◽  
pp. 106540
Author(s):  
Vladislav Yu. Proskurnin ◽  
Nataliya N. Tereshchenko ◽  
Artem A. Paraskiv ◽  
Olga D. Chuzhikova-Proskurnina
Keyword(s):  
Black Sea ◽  
Bottom Sediments ◽  
Sea Bottom

scholarly journals Application of solidified sea bottom sediments into environmental bioremediation materials

2017 ◽  
Vol 10 ◽  
pp. S2592-S2600 ◽  
Author(s):  
Ahmed H.A. Dabwan ◽  
Daizo Imai ◽  
Hideyuki Katsumata ◽  
Tohru Suzuki ◽  
Kunihiro Funasaka ◽  
...  
Keyword(s):  
Bottom Sediments ◽  
Sea Bottom

Oxygen and hydrogen sulfi de in the upper layer of the Black Sea bottom sediments

2018 ◽  
pp. 542-560
Author(s):  
N.A. Orekhova ◽  
◽  
S.K. Konovalov ◽  
Keyword(s):  
Black Sea ◽  
Bottom Sediments ◽  
The Black Sea ◽  
Sea Bottom

scholarly journals Bottom Sediments Reveal Inter-Annual Variability of Interaction between the Ob and Yenisei Plumes in the Kara Sea

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
A. A. Osadchiev ◽  
En. E. Asadulin ◽  
A. Yu. Miroshnikov ◽  
I. B. Zavialov ◽  
E. O. Dubinina ◽  
...  
Keyword(s):  
Bottom Sediments ◽  
Vertical Structure ◽  
Suspended Sediments ◽  
Kara Sea ◽  
Local Wind ◽  
River Plumes ◽  
Buoyant Plumes ◽  
Sea Bottom ◽  
Mixing Dynamics ◽  
Good Agreement

AbstractRiver discharge is the main source of terrigenous sediments in many coastal areas adjacent to estuaries and deltas of large rivers. Spreading and mixing dynamics of river plumes governs transport of suspended sediments and their deposition at sea bottom at these areas. Generally river plumes have very large synoptic and seasonal variability, which cannot be reconstructed from structure of bottom sediments due to their small accumulation velocity. However, bottom sediments can be indicative of variability of river plumes on inter-annual and decadal time scales. In this study we focus on the large Ob and Yenisei buoyant plumes formed in the central part of the Kara Sea. These plumes interact and mix in the area adjacent to the closely located Ob and Yenisei gulfs. Suspended sediments carried by these river plumes have significantly different geochemical characteristics that can be used to detect Ob or Yenisei origin of bottom sediments. Using new geochemical methods we revealed dependence between spreading patterns of these plumes and spatial distribution and vertical structure of bottom sediments in the study area. This relation is confirmed by a good agreement between local wind and discharge conditions reconstructed for 1948–2001 and vertical structure of bottom sediments.

Determination of the Total Microbial Abundance in Black Sea Bottom Sediments Using Flow Cytometry

Microbiology ◽  
2019 ◽  
Vol 88 (6) ◽  
pp. 700-708
Author(s):  
O. A. Rylkova ◽  
S. B. Gulin ◽  
N. V. Pimenov
Keyword(s):  
Flow Cytometry ◽  
Black Sea ◽  
Bottom Sediments ◽  
Microbial Abundance ◽  
Sea Bottom

Radionuclides Distribution and its Sorption Behavior in the Surface Layer of the Kara Sea Bottom Sediments

2019 ◽  
Vol 57 (11) ◽  
pp. 1213-1220
Author(s):  
N. V. Kuzmenkova ◽  
V. V. Krupskaya ◽  
E. V. Duriagina ◽  
I. N. Semenkov ◽  
S. E. Vinokurov
Keyword(s):  
Surface Layer ◽  
Bottom Sediments ◽  
Kara Sea ◽  
Sorption Behavior ◽  
Sea Bottom

scholarly journals The life histories and population dynamics of monogenean gill parasites of Trachurus trachurus (L.)

1962 ◽  
Vol 42 (3) ◽  
pp. 587-600 ◽  
Author(s):  
J. Llewellyn
Keyword(s):  
Coastal Waters ◽  
Life Histories ◽  
Feeding Habits ◽  
Limiting Factor ◽  
Trachurus Trachurus ◽  
Free Living ◽  
Sea Bottom ◽  
Second Year ◽  
Post Spawning ◽  
Gill Parasites

Gastrocotyle trachuri and Pseudaxine trachuri infect young Trachurus trachurus at Plymouth as soon as the 3- or 4-month-old adolescent fishes descend to the sea bottom in October. The parasites normally mature in 3 or 4 months, but, exceptionally, in about 1 month, and the life-span is normally no longer than 1 year. Trachurus specimens at the beginning of their second year pick up a largely new infection of parasites.G. trachuri and P. trachuri are much less frequent on 2- and 3-year-old specimens of Trachurus and probably occur only very rarely on still older fishes, the limiting factor being not an age-immunity but a post-spawning migration of the host from the concentration of free-living infective stages of the parasites in coastal waters.The parasites have adapted themselves to a seasonal change in the feeding habits of Trachurus by ceasing to produce larvae in anticipation of the summer disappearance of scad from the sea bottom in pursuit of pelagic food-organisms.

Natural Radionuclide and Plutonium Content in Black Sea Bottom Sediments

1996 ◽  
Vol 70 (1) ◽  
pp. 70-80 ◽  
Author(s):  
A. Strezov ◽  
I. Yordanova ◽  
M. Pimpl ◽  
T. Stoilova
Keyword(s):  
Black Sea ◽  
Bottom Sediments ◽  
Natural Radionuclide ◽  
Sea Bottom
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