Suspended particulate matter (SPM) strongly alters the trophic environment of photosymbiotic aquatic organisms. At high particles loads, phototrophic energy gains can be diminished due to light absorption by suspended particles, and stress from particle abrasion or deposition on tissues. However, energy gains are enhanced if organisms are able to use SPM as a food source. For photosymbiotic ben...

Nudibranchs that exclusively eat scleractinian corals provide a rare opportunity to study specialist predation in the marine environment. To measure the diet breadth of 4 Phestilla species on Guam, we offered the nudibranchs different corals in choice and no-choice feeding assays. Larval preferences were determined by measuring the percent metamorphosis in response to different coral species. W...

The cyanophycin granules from two-week-old cultures of the blue-green alga Anabaena cylindrica were isolated by sonication of the cells followed by differential centrifugation. These particles are composed of polypeptides containing only two amino acids, aspartic acid and arginine, and have a molecular weight between about 25,000 and 100,000.

Abstract Nitrite (NO2?) accumulation and retaining of anammox bacteria are two decisive factors for stable operation partial denitrification coupled with the process. Denitrifying ammonium oxidation (DEAMOX) process has been regarded as a promising method nitrogen removal from wastewater containing both (NH4+) nitrate (NO3?) pollutants simultaneously. However, performance efficiency DEAMOX in b...

An assay was developed to determine the amount of cyanophycin granules in blue-green algae. The amount of this polypeptide in cells of Anabaena cylindrica was measured as a function of culture age and was compared with changes in other proteinaceous cellular components. The data presented support the notion that the cyanophycin granule is a cellular nitrogen reserve.

OBJECTIVE The purpose of the study is to determine the digenean parasite fauna of Sarpa salpa (Sparidae) from the Mediterranean Sea. METHODS The fish samples from the coasts of Mersin-Anamur were brought to the Parasitology Research Laboratory of the Biology Department of Science Faculty of Atatürk University, dissected and investigated parasitologically. The parasites that were found in the ...

Ten Eurytomidae (Hymenoptera) parasitic wasp species described by Jean Brèthes and deposited in the Museo Argentino de Ciencias Naturales in Buenos Aires are treated and their nomenclature stabilized. The condition of the type material is described. Lectotypes are designated for Decatoma cecidosiphaga Brèthes, Prodecatoma parodii Brèthes, Eudecatoma opposita Brèthes, and Eurytoma caridei Brèthe...