Published in Russian Journal of Marine Biology
The unattached form ofLaminaria gurjanovae A. Zin. inhabiting silty and sandy bottoms at depths of 10–30 m in the area of the Tumen River mouth (Pos’eta Bay) is described for the first time. Laminarian thalli interlace their long (up to 50-cm) stipes and form dense aggretations.
Published in Russian Journal of Marine Biology
At three stations in the shallow Semyachik Lagoon, Kronotskii Bay, Kamchatka, 72 species and intraspecific taxa of microalgae were found. Diatoms (55) were the dominant group. In the qualitative and quantitative respects, phytoplankton was mainly represented by casually planktonic (benthic) species of diatoms. The general features of diel dynamics ...
Published in Russian Journal of Marine Biology
Larvae of two nemertean species,Ototyphlonemertes (O.) martynovi Chernyshev, 1993 andOtotyphlonemertes (Norenburgia) sp., found in the neritic plankton of Peter the Great Bay, the Sea of Japan are described. The larvae of both species had two statocysts and a pair of eyes, but differed in the number of statoliths and in their tactile cirri. Changes...
Published in Russian Journal of Marine Biology
Published in Russian Journal of Marine Biology
Cultivation of the red agar-producing algaGracilaria verrucosa (Huds.) Papenf. on suspended ropes produced significant changes in water motion and irradiance in near-bottom waters. However, no significant changes were found in a wild bed ofZostera japonica Arch. et Iraebn in the initial period of cultivation ofGracilaria. There was only a reduction...
Published in Russian Journal of Marine Biology
Allozyme variability was investigated at 18 polymorphic loci in 9 samples of the bivalveMytilus trossulus (Gould, 1850) from Vostok Bay, Sea of Japan. Significant differences in allele frequencies at some loci were found between samples from different age cohorts and different depths. Genetic distances between samples were as great as (and often ex...
Published in Russian Journal of Marine Biology
Published in Russian Journal of Marine Biology
A negative correlation is found between glucose and total protein content in the blood plasma of the red salmonOncorhynchus nerka during the time of spawning. Plasma cortisol concentration exceeding a certain level is shown to decrease the content of total lipids and glucose in females, and that of total lipids in males.
Published in Russian Journal of Marine Biology
The reproduction and larval development of the prosobranch gastropod molluskTegula rustica were studied under laboratory conditions. In Vostok Bay (Peter the Great Bay), the reproduction of theTegula takes place in August, when the water temperature is 19–20°C. Under laboratory conditions, the spawning of females was stimulated by adding a sperm em...
Published in Russian Journal of Marine Biology
The taxonomic structure and some metabolic features of the bacterial populations of the sea spongeVerongia sp were studied. Twenty-three symbiotrophic strains were isolated into axenic cultures and identified. These wereProteobacteria of the generaPseudoalteromonas andVibrio (about 52%), firmicutes with low G+C content (up to 22%), and bacteria of ...
