Biophysical assessments and blood profiling reveal physiological adaptations and environmental interactions of hilsa shad (Tenualosa ilisha).

ABSTRACT: The hilsa shad (Tenualosa ilisha) is a migratory fish of great economic and cultural importance in Bangladesh. However, its physiological adaptations to diverse environmental conditions are not well understood. This study provides a comprehensive assessment of the biophysical, hematological, and biochemical characteristics of hilsa shad from riverine, estuarine, and marine environments in Bangladesh. We sampled 180 adult fish from nine sites, revealing significant habitat-specific variations in water quality, with marine sites showing the highest levels of total dissolved solids (TDS) and specific conductance. Hematological analysis showed that fish from riverine environments had higher hematocrit values, which are crucial for oxygen transport during migration. Post-spawning fish exhibited

SUBMITTER: Anwar S 

PROVIDER: S-EPMC11960910 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature