Work

Developing behavioural ecotoxicology assessment methods in the tropical marine amphipod, Parhyale hawaiensis: A study with benzo[a]pyrene (BaP)

Year: 2024

Type: article

Abstract: ± SE, 96 h at 11.89 ± 1.19 μM). Relative to the control group, aqueous exposure to 2 μM and dietary exposure to 250 and 1250 μg BaP/g feed resulted in statistically significant behavioural changes. These included a 55-76 % reduction in feeding rates, 133 % increase in chemosensation time, 60-122 % drop in moulting frequency, 200 % delay in precopulatory activity, 50-83 % decrease in geotactic activity, and 300-400 % increase in phototactic activity (all significant at p ≤ 0.05). The methods developed in this study are cost-effective, sensitive, and readily integrated into other endpoint analyses, reinforcing the potential of P. hawaiensis as a tropical ecotoxicology model for detecting toxicant-induced behavioural responses and enhancing marine risk assessments.

Source: Marine Pollution Bulletin

DOI: 10.1016/j.marpolbul.2024.117142

Authors: Ibrahim Lawan, Gisela de Aragão Umbuzeiro, Alastair Robert Lyndon, Theodore Burdick Henry

Institutions: Heriot-Watt University, Universidade Estadual de Campinas (UNICAMP), University of Tennessee at Knoxville

Language: English

Topic: Environmental Toxicology and Ecotoxicology

Subfield: Health, Toxicology and Mutagenesis

Field: Environmental Science

Domain: Physical Sciences

SDG: Life below water

Open Access status: hybrid

Estimated APC paid: $3,630