𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Effects of crude oil and chemical dispersant on photosynthesis in the brain coralDiploria strigosa

✍ Scribed by C. B. Cook; A. H. Knap

Publisher
Springer-Verlag
Year
1983
Tongue
English
Weight
734 KB
Volume
78
Category
Article
ISSN
0025-3162

No coin nor oath required. For personal study only.

✦ Synopsis

An eight-hour exposure of Diploria strigosa (Dana) to a mixture of Arabian Light crude oil (19ppm) and the chemical dispersant "Corexit 9527" (1 ppm) in a flowing seawater system reduced photosynthesis by symbiotic zooxanthellae by 85 %, while either oil or dispersant alone had no effect. The greatest effect of crude oil plus dispersant occurred in the incorporation of photosynthetic products into lipids. Synthesis of wax esters and triglycerides, the major storage lipids, was particularly affected. Total carbon fixation was restored within 3-5 h after treatment, and lipid synthesis was restored within 5-24 h after exposure.

πŸ“œ SIMILAR VOLUMES

The effects of a no. 2 fuel oil and two
The effects of a no. 2 fuel oil and two crude oils on the growth and photosynthesis of microalgae
✍ W. M. Pulich; K. Winters; C. Baalen πŸ“‚ Article πŸ“… 1974 πŸ› Springer-Verlag 🌐 English βš– 650 KB

Seawater, when equilibrated with a sample of No. 2 fuel oil, becomes toxic in varying degrees to growth of representative types of microalgae, two blue-greens, a diatom, two greens, and a dinoflagellate. For a sensitive organism such as Thalassiosira pseudonana, Strain 3H, 5 ml of seawater equilibra

The effect of demulsifiers on the interf
The effect of demulsifiers on the interfacial rheology and emulsion stability of water-in-crude oil emulsions
✍ R.A. Mohammed; A.I. Bailey; P.F. Luckham; S.E. Taylor πŸ“‚ Article πŸ“… 1994 πŸ› Elsevier Science 🌐 English βš– 879 KB

The interfacial rheological properties of the crude oil-water interface have been measured. It is found that the rheological properties are time dependent and the film takes at least 8 h to attain equilibrium. During this period the surface elasticity and viscosity increase markedly with time, with

Chemical mapping of anxiety in the brain
Chemical mapping of anxiety in the brain of healthy humans: An in vivo 1H-MRS study on the effects of sex, age, and brain region
✍ Igor D. Grachev; A. Vania Apkarian πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 295 KB πŸ‘ 2 views

We recently presented results in an in vivo study of human brain chemistry in 'physiologic' anxiety, i.e., the anxiety of normal everyday life. Normal subjects with high anxiety demonstrated increased concentration of chemicals in orbital frontal cortex (OFC) as compared to lower anxiety. In a separ