Struktur Jaringan Insang Ikan Juaro (Pangasius Polyuranodon Bleeker, 1852) Da…

Sail River is a polluted river in Riau, however, many types of fish, including catfish Pangasius polyuranodon Bleeker (1852) is living in that river. The water condition of the river may effect the fish health status in general, including its gill structure. A study aims to understand the histological structure of the gill of that fish has been conducted in February-March 2018. Abnormality in t…