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.
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.
Keywords
Biometry
Brackish water
Expansion and contraction
External appearance.