Monocarboxylate transporters (MCTs) have been shown to be important in regulating metabolism during hypoxia in mammals. However, the role of MCTs in hypoxic survival in lower vertebrates is currently unclear. The goal of this study was to investigate the coordinated responses of MCTs along with other metabolic genes during hypoxia. Therefore, we subjected zebrafish (Danio rerio) to 1.5mgL(-1) O...

This study evaluated the sensitivity of male and female guppies (Poecilia reticulata) to ammonia. LC50-96h for males, females combined sexes P. reticulata was 37.33, 48.34, 42.45 mg/L total ammonia or 1.03, 1.34, 1.17 un-ionized The mortality at concentration 40 differed between with higher in males. These results have implications production systems, since recommendations toxicity reference va...

The aquatic environment has always been subjected to different types of pollutants of industrial, domestic and agricultural wastes (Mance, 1987; Kalay and Canli, 2000) which severely affect the aquatic organisms. Beaumont et al., (2000) and Almeida et al., (2001) reported that rapid industrialization in India has resulted into a substantial increase in the liquid waste (spent wash or effluent),...

Hematological parameters are suitable biomarkers for evaluating the potential risk of the chemicals. The aim of this study was to investigate of acute crude oil exposure on basic physiological functions of Persian sturgeon, Acipenser persicus. 210 juvenile Persian sturgeon (9.4 ± 1g) were supplied by the Rajaei fish farm in Mazandaran Province, Iran.  Juveniles were exposed to the crude oil (15...

The need of aquarists for proper and safe disinfection of fish with Chloramine-T (CL-T) necessitates toxico/pathologic examinations.   This study assays toxicity level of CL-T and histopathologic changes of gills, liver, kidney and brain of treated zebrafish (Danio rerio). Groups of 10 Zebrafish were treated with 0 (control), 5, 10, 15, 30, 50,100 and 200 mg/L of CL– T. Mortality was recorded a...

Intraflagellar Transport (IFT) refers to a highly conserved process occurring in eukaryotic ciliated structures. In vertebrate photoreceptors, IFT mediates protein trafficking to the outer segments. The IFT particle is a multi-subunit complex and mutations in many individual components causes photoreceptor defects. In zebrafish, mutations in the ift57, ift88, and ift172 genes result in retinal ...