This study aimed to explore the gill developmental mechanism of high mortality rate Paramisgurnus dabryanus larvae in early life-history process. Based on histological observations with a optical microscope, we studied ontogeny P. dabryanus. The result indicated that external gills first appeared 12 h after hatching. number branchial filaments greatly increased at 2 d hatching (DAH). internal f...

Abstract Identifying, evaluating, and prioritizing freshwater systems for conservation is a persistent challenge managers tasked with recovery of native fishes. We used historical records from the Gila River basin, national hydrography data set, Random Forest modeling to predict probability Spikedace Meda fulgida Loach Minnow Rhinichthys cobitis occurrence throughout their range in basin. Model...

formerly the turkmenian stone loach was the only member of the genus metaschistura based on osteological characters. but recently, it is placed in the genus paraschistura based on mtdna coi data. to provide a detailed description of the osteological characteristics of paraschistura cristata (berg 1898), ten specimens of p. cristata were collected from the hari river basin in iran and their oste...