Fig. 2 in Pheretima hamiguitanensis

Fig. 2. Surface water temperature in the monitoring site (A) and sequential change of Plakobranchus ocellatus population density (B) and Morisita's Iδ-index (C) form April 2012 to November 2013. Black letters in B and C indicate the month in 2012 and gray letters indicate the month in 2013. Asterisks in C indicate significant departure from random distribution (Iδ = 1) based on chi-square values (*, P <0.05; **, P <0.01).