Sixteen strains of aerobic bacteria which contain bacteriochlorophyll a were isolated from the samples collected in aerobic marine environments: thalli of Enteromorpha linza, Porphyra sp., Sargussum horneri; beach sand; and the surface seawater from Aburatsubo Inlet. When they occurred, their proportions among the aerobic heterotrophic populations ranged from 0.9 to 1.1% in the seaweed samples ...

This study examines the effect of pH changes on photosynthetic characteristics and the role of dissolved inorganic carbon (DIC) in determining the dominance of three species of macroalgae Chaetomorpha linum (O.F. Müller) Kützing, Gracilaria verrucosa (Hudson) Papenfuss and Ulva sp. in a Mediterranean coastal lagoon. Fluctuations of pH were measured in the lagoon in summer. Water column CO(2) an...

Axenic gametes of the marine green macroalga Ulva mutabilis Føyn (Ria Formosa, locus typicus) exhibit abnormal development into slow-growing callus-like colonies with aberrant cell walls. Under laboratory conditions, it was previously demonstrated that all defects in growth and thallus development can be completely abolished when axenic gametes are inoculated with a combination of two specific ...

Though the congeners Nutricola (=Transennella) confusa and Nutricola tantilla occupy an important ecological niche on mudflats, there is little published information concerning their population dynamics. We sought to determine what causational factors influence shifts in the relative distributions of these clams. Twelve cores were taken from Westside Park in Bodega Bay Harbor, California, in ar...

The optimised reduction of dissolved nutrient loads in aquaculture effluents through bioremediation requires selection of appropriate algal species and strains. The objective of the current study was to identify target species and strains from the macroalgal genus Ulva for bioremediation of land-based aquaculture facilities in Eastern Australia. We surveyed land-based aquaculture facilities and...

Adhesion Strength of Settled Spores of the Green Alga Enteromorpha J. A. Finlay a; Maureen E. Callow a; M. P. Schultz b; G. W. Swain c;J. A. Callow a a School of Biosciences, University of Birmingham, Birmingham B15 2TT, UK. b Department of Naval Architecture and Ocean Engineering, United States Naval Academy, Annapolis, MD 21402, USA. c Department of Oceanography and Ocean Engineering, Florida...

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It was studied the effect of biostimulants Trichodermin-Bio, Epin-extra, Zircon and Krezatsin on laboratory seed germination growth processes legumes: fodder beans Vizir variety, chickling vetch (grass pea, pea) Ivolga food lentils Linza variety.The use in legumes caused an increase sowing qualities seeds their biometric characteristics.The Epin-extra biostimulator gave best effect. This prepar...

In vitro the antibacterial activity of the Acetone, Methanol and Ethanol extracts of three marine algae from Ennore beach near Chennai (coast of Tamil Nadu) were tested. The test organism includes Gram negative bacteria such as Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae and Gram positive bacteria such as Staphylococcus aureus. In this study, agar well diffusion test techniq...