aphanius ginaonis is exclusive to the geno hot spring, located in the hormozgan province. in this paper some biological aspects of aphanius ginaonis and contents of its digestive tract and its relation with cyanobacteria (blue-green algae) in the geno hot spring was examined. sampling was conducted monthly, samples were fixed in 5% formalin immediately after fishing and transferred to the ichth...

background: the widespread use of chemical insecticides, resistance in vectors and environmental problems, all have led to an increased interest in the use of biological agents in malaria control programs. the most important functional elements are the native fish. the aim of this study was to identify the native species of lavivorous fish in rudan county, southern iran, to introduce an effecti...

This work is a brief review of a series of studies of the phenotypic organization and ecological significance of individual differences in fish behavior. The following species were studied: guppy Poecilia retuculata, lion-headed cichlid Steatocranus cassuarius, and the convict cichlid Archocentrus nigrofasciatum. We developed methods for the analysis of individual differences in fish behavior a...

Croizat, L., G. Nelson, and D. E. Rosen (Department of Ichthyology, The American Museum of Natural History, New York, New York 10024) 1974. Centers of origin and related concepts. Syst. Zool. 23:265-287.-The concept of center of origin in the Darwinian sense is often accepted and used as if it were a conceptual model necessary and fundamental to historical zoogeographical analysis. But in certa...

Purpose. To investigate the peculiarities of growth age-1+ paddlefish depending on water temperature and quantitative parameters zooplankton development in ponds forest-steppe zone Ukraine. Methodology. Age-1+ paddlefish, a North American zooplanktophagus were reared polyculture with cyprinids 72-hectare pond using semi-intensive technology. The stocking density age-1 an average weight 86.5 g w...

For years, studies on the classification, evolution and geographic history of the Caribbean biota have ignited much interest, resulting in many studies addressing issues in a variety of contexts. Most of the works on biogeography of the region are predominantly on animal groups, and there is a marked deficiency in similar studies for plant groups. For instance, in the proceedings of a symposium...