Composition and Variation of the Bottom Fauna in the Sublittoral of the Eutrophic Lake Doiran (Macedonia, Yugoslavia)

1980 ◽  
pp. 195-201 ◽  
Author(s):  
J. A. Šapkarev
Keyword(s):  
Eutrophic Lake ◽  
Bottom Fauna

The Effect of Exogenous Fluoride on the Calcium PUMP, Ciliary Activity, and Shell Formation of the Fingernail Clam, Musculium Transversum

1982 ◽  
Vol 40 ◽  
pp. 58-59
Author(s):  
Anthony Paparo ◽  
Judy A. Murphy ◽  
Robert Dean
Keyword(s):  
Mississippi River ◽  
Calcium Pump ◽  
Bottom Fauna ◽  
Ciliary Activity ◽  
Shell Formation ◽  
Middle Reach ◽  
Shell Matrix ◽  
Fingernail Clams ◽  
Ca Carbonate

In the mid-1950's, fingernail clams virtually disappeared from a 100-mile section of the IL River, a tributary of the Mississippi River, due to unknown causes. A survey of the bottom fauna of the IL River in 1979, revealed that the clams were still absent from the middle reach of the River, where they had been abundant prior to the die-off in the 1950's. Some factor(s) in the River currently prevent the clams from recolonizing areas where they were formerly abundant. Recently, clams exposed to fluoride developed abnormal grooves in the shell matrix. Fluorides are known to be protoplasmic poisons removing essential body calcium by precipitation. Since the shell consists primarily of Ca carbonate, this investigation examines the possible role of fluoride on shell formation and the poisoning of the Ca pump which can directly inhibit lateral ciliary activity on the gill.

BIO-OCEANOGRAPHER, ZOOLOGIST LEV IVANOVICH MOSKALEV (04.01.1935–04.12.2020)

2020 ◽  
Vol 48 (4) ◽  
pp. 168-171
Author(s):  
E. M. Krylova ◽  
A. N. Mironov ◽  
A. V. Gebruk
Keyword(s):  
Deep Sea ◽  
Bottom Fauna ◽  
Ocean Bottom ◽  
Scientific Career ◽  
Shirshov Institute ◽  
Popular Book ◽  
Scientific Papers

The article is dedicated to the memory of L.I. Moskalev – renowned bio-oceanographer, zoologist who spent his entire scientific career at the Laboratory of Ocean Bottom Fauna. L.I. Moskalev participated in more than 30 deep-sea voyages, spent 200 hours diving in manned submersibles “Pisces” and “Mir”, published about 100 scientific papers and a popular book «Masters of the Deep» (2005). Colleagues will remember Lev Moskalev – an extraordinary and deep person and a true patriot of the Laboratory and P.P. Shirshov Institute of Oceanology

“Electronic Particle Sizing as a Means of Measuring Production in a Eutrophic Lake”

1970 ◽  
Vol 5 (1) ◽  
pp. 1-8
Author(s):  
Gordon G.C. Robinson ◽  
Dennis J. Brown
Keyword(s):  
Particulate Matter ◽  
Eutrophic Lake ◽  
Coulter Counter ◽  
Particle Sizing ◽  
Particle Volume

Abstract A model “B” Coulter Counter with “J” plotter was used to determine the total volume of particulate matter and autotrophic and heterotrophic increments in particle volume in a small eutrophic lake, south of Lake Manitoba. Such increments were converted to more meaningful carbon values.

A holistic understanding of cobalt cycling and limiting roles in the eutrophic Lake Taihu

Chemosphere ◽  
2021 ◽  
pp. 130234
Author(s):  
Xianfang Fan ◽  
Shiming Ding ◽  
Shuaishuai Gao ◽  
Musong Chen ◽  
Zheng Fu ◽  
...  
Keyword(s):  
Lake Taihu ◽  
Eutrophic Lake ◽  
Holistic Understanding
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