Subarctic Siberian freshwater ecosystems are unique due to severe climatic conditions and strong seasonal changes of water supply, temperature and nutrient availability. In this work we evaluated the relative influence of the illumination level linked with the diurnal cycle, local environmental heterogeneity and water level changes during the receding flood on the distribution and migrations of...

Alburnus sava, new species, is described from the Kolpa River. The Kolpa is a tributary of the Sava, a major tributary of the Danube River, in the Black Sea basin. Alburnus sava is distinguished from its congeners in the Danube drainage, A. mento and A. sarmaticus, by having 23-27, usually 24-26, gill rakers; the ventral keel usually completely covered by scales (scaleless part maximum 15% of t...

BACKGROUND The taxonomic validity of Northeast Indian endemic Mahseer species, Tor progeneius and Neolissochilus hexastichus, has been argued repeatedly. This is mainly due to disagreements in recognizing the species based on morphological characters. Consequently, both the species have been concealed for many decades. DNA barcoding has become a promising and an independent technique for accura...

The aim of this study which was carried out from March 2003-February 2004 was to determine the parasites of carp (Cyprinus carpio L., 1758) inhabiting the Kovada Lake. During the study, a total of 63 common carps were caught in different regions of Kovada Lake each month and investigated parasitologically. In carps, the ectoparasite, Dactylogyrus minutus of Monogenea, was found and endoparasite...

kol river drains into the persian gulf and its watershed encompasses  areas  in  hormozgan, kerman and fars provinces. identification of fish species of the river was conducted seasonally from summer to winter 2005. we selected 8 sampling stations based on the height of  sea  level  from branches of kol river near estuary. totally, 160 specimens were caught with gillnet, cast net and hook. we i...

In this study, the fish species inhabiting Bolaman Stream drains to Black Sea from Fatsa coast (Ordu Province, Turkey) was reported for first time. The study caught out non-periodically by sampling seven stations in between July 2017 and November 2018. Fish samples were captured with an electroshock device. With it determined that fauna of is represented 10 five families (Acheilognothidae, Cypr...

This study aims to determine the biodiversity of fish caught in estuary waters Sungai Bilah. The method used is explorative with determining point observation using purposive sampling. Fish samples were splint nets. results showed that Ambassidae and Cyprinidae dominated relative frequency at family level. composition species highest number was Seluang (109 individuals) Sepongkah (107 individua...

The grass carp (Ctenopharyngodon idella) is a herbivorous, freshwater fish species of the family Cyprinidae, and the only species of the genus Ctenopharyngodon. Neoplasms in fishes are generally less aggressive than neoplasms in mammals and are most commonly discrete, focal and benign neoplasms. A 3-year-old grass carp with a big mass on the vertebrae was referred to the clinic. According to the...

Dumka is the sub-capital of Jharkhand, which rich in fishery resources. The status fish diversity was not known from all water bodies this area. A study undertaken Block (Latitude 23 ⁰47′ and 24⁰38′ East Longitude 86⁰28′and 87⁰15′). Jharkhand during 2018 to 2020. Fish sample were collected different freshwater sources using local contraption modern nets. 31 species fishes belonging 17 families ...