Skip to main content

Table 1 Gulland–Holt equations estimated from measurements of shell growth in Callista chione shell sections

From: Age, growth, and population structure of the smooth clam Callista chione in the eastern Adriatic Sea

Study area Gulland–Holt equation r 2 k year−1 H L ø′
Rab Island Y = 6.595 − 0.100X 0.514 0.11 65.8 85.9 2.87
Pag Bay Y = 11.734 − 0.231X 0.816 0.23 50.8 66.7 3.01
Kaštela Bay Y = 11.358 − 0.211X 0.699 0.21 53.8 70.7 3.02
Cetina estuary Y = 19.088 − 0.316X 0.791 0.32 60.1 78.6 3.29
  1. r 2 coefficient of determination; Von Bertalanffy growth parameters estimated from Gulland–Holt equation: k growth constant (k year−1); H asymptotic height (mm); L asymptotic length (mm) calculated from the shell length and shell weight relationship; ø′ growth performance index