Asus Maizar Suryanto Hertika, Nanik Retno Buwono, Muhammad Asnin Alfarisi, Marsa Fatin Halimah
Sulcospira testudinaria, a freshwater gastropod prevalent in Indonesian aquatic environments, serves as a bioindicator for assessing water quality. This study examined the hemocyte profile of S. testudinaria to evaluate water quality in Ranu Grati, Pasuruan Regency, East Java. Gastropod and water samples were obtained from four research stations with three repetitions of sampling at two-week intervals from August to October 2024. Water quality was evaluated using key parameters including temperature, pH, dissolved oxygen (DO), biological oxygen demand (BOD), total suspended solids (TSS), total dissolved solids (TDS), and ammonia levels. Physiological responses to environmental conditions were examined through hemocyte analysis, which evaluated both total hemocyte count (THC) and differential hemocyte count (DHC). The results indicated discrepancies in water quality, with Stations 3 and 4 exhibiting heightened amounts of TSS, BOD, and ammonia, signifying pollution. The circumstances markedly influenced the hemocyte profile, resulting in elevated THC and modified ratios of granulocytes, hyalinocytes, and semi-granulocytes. Canonical correspondence analysis (CCA) demonstrated significant connections between suboptimal water quality measures and stress responses in S. testudinaria. The results underscore the efficacy of S. testudinaria as a bioindicator, offering essential insights for the sustainable management of freshwater ecosystems. © 2025, Polskie Towarzystwo Inzynierii Ekologicznej (PTIE). All rights reserved.
Department of Aquatic Resource Management, Faculty of Fisheries and Marine Sciences, Universitas Brawijaya, Veteran Str, Malang, 65145, Indonesia; Master Program of Aquaculture, Faculty of Fisheries and Marine Science, Universitas Brawijaya, Veteran Str, Malang, 65145, Indonesia; Faculty of Computer Sciences, University Brawijaya, Jl. Veteran, East Java, Malang, 65145, Indonesia
