Effect of Some Preservative Solutions on Some Morphometric Features of Planiliza abu (Heckel, 1843)

Mohammed Inad Ghazwan

doi:10.52951/dasj.21130201

Abstract

The present study attempts to find out the effect of some fish preservatives in the laboratory, such as alcohol and dilute formalin, on some biological characteristics related to the body measurements of those fish preserved in these materials. The fish used in this study were the local Planiliza abu. The processes of expansion and contraction of the bodies of fish preserved in diluted formalin solution at a concentration of 10% and diluted ethyl alcohol solution at a concentration of 70%. As that the standard length of the specimens of this study, which are separately preserved in formalin 10% and alcohol 70%, in a completely isolated are fluctuating in change. Constant shrinkage in head length in both diluted formalin and alcohol. Most fish bodies preserved in formalin at a concentration of 10% gain significant weight gain, in contrast to alcohol preservation.

Highlights

Planiliza abu is one of the Iraqi local fish that belongs to the Mugilidae family
The first group was kept in a diluted formalin solution at a concentration of 10%; the second group was kept in a diluted ethyl alcohol solution at a concentration of 70%
The biometric rates for fish preserved in formalin were 10% for the four weeks: the total length was 19.6cm, standard length was 16.4cm, the head length was 4cm and the weight was 19.8g

Summary

Introduction

Planiliza abu is one of the Iraqi local fish that belongs to the Mugilidae family. Its total length is 26 cm and distributed in the Tigris and Euphrates basins; it does not enter the Arab Gulf. Its small size reduces its economic value; it is a popular and local fish with wide popularity in Iraqi markets This species is found in the Euphrates River Basin in Syria (Misra, 1947; Khalaf, 1961; Mahdi, 1962; Al-Daham, 1984). Evidence come from many researchers as indicated by (Lux, 1960; Parker,1963; Stobo,1972; Engel, 1974; Sayers,1987 and Haubroc et al,2018) These substances may cause contractions and shrinkage in the bodies of the fish preserved in them (Billy, 1982; Al-Hassan and Abdullah, 1992; Al-Hassan and Shawafi, 1997; Al-Hassan et al, 1999, 2000)

Methods

Results

Conclusion