Length-weight relationship and condition factor of fish species in shallow freshwater habitats from Khuzestan Province, Iran

摘要: This study evaluated Length-Weight Relationships (LWRs) and condition factor (K) of the juvenile young adult fish from shallow littoral zones in some aquatic ecosystems located Khuzestan province, Iran. In June 2015, specimens were sampled using a seine net Shadegan Wetland, Dez, Karkheh Rivers time period increased recruitment. The LWRs calculated linear regression log formula as W=loga+blogTL, K estimated K=W/L3. A total 18 species belong to 5 families collected stations. Exotic comprised 33.33% ichthyofauna. variation b-value ranges between 2.65 3.26, growth pattern is isometric all except Acanthobrama marmid. Since amount was higher than one species, it can be concluded that sampling stations are favorable for fish.  As consequence decreased floodplain habitats surrounding water bodies, waters have suitable features play an essential role survival native fauna.