Gözle görülebilir fluorescent elastomer (VIE) markalamanın tatlı su İstakozu'nun, Procambarus acutus acutus (Girard, 1852), büyüme, kabuk değişimi ve yaşama oranı üzerine etkisi

Abstract

Tag retention, growth, molting, and survival of crayfish, Procambarus acutus acutus, 35-37 mm in total length were evaluated between tagged and untagged groups. There were no significant differences in molting and survival between the tagged and untagged groups (P > 0.05). Tag retention was 100% for crayfish kept individually in plastic containers for the 60-day experimental period. The tagged group had a mean growth of 7.0 mm (molts only) while the untagged group had a mean growth of 4.0 mm (molts only). Molting rates were similar between the tagged and untagged groups. Nine molts were observed each in the tagged (n = 30) and untagged (n = 30) groups, respectively. Survival rates were 96.6% for both groups. Although the tags did not affect molting or survival, they did significantly affect the growth of crayfish in the short term (P < 0.05).