A comparative Study of Estimation of Gill Surface Area of of the two types of Teleosts

Abstract

The present study deals with estimation of gill surface area to gills of two species of Teleost , which belongs to two different family she Aspius vorax which belongs to family Cyprinidae and Liza abu which belongs to family Mugilidae , The collection study sampling from AL-Hindia River by use Gill nets and Cost nets , The appear study Results has differ clear in ranges values to the study length groups . They have small length groups small absolute gill area compare large length groups the have groups large absolute gill area the ranges values (26446.20 - 36625.80 mm2) in Aspius vorax fish , either Liza abu fish ranges values (1620.28 - 2397.80 mm2) , is was total length average of gill filament the effect on the increase values absolute gill area while don’t appear the two other factor (number of secondary lamellae and secondary lamellae area) the proved Aspius vorax fishes included in the Intermediate Fishes or Intermediate Swimming , either Liza abu fishes included in the Sluggish Fishes or Slow Swimming .