Chronic effects of environmental concentrations of antifoulant diuron on two marine fish: Assessment of hormone levels, immunity, and antioxidant defense system.

Comp Biochem Physiol C Toxicol Pharmacol

Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon 22012, Republic of Korea; Research Institute of Basic Sciences, Incheon National University, Incheon 22012, Republic of Korea; Yellow Sea Research Institute, Incheon 22012, Republic of Korea. Electronic address:

Published: January 2023

The presence and toxicity of waterborne diuron in aquatic environments pose a severe threat to non-target organisms. However, the chronic impact of diuron in marine fish has been poorly investigated. In this study, we report the chronic effects (30 and 60 days) of environmentally relevant concentrations of diuron (0.1, 1, and 10 μg L) on economically important marine fish, red seabream (Pagrus major), and black rockfish (Sebastes schlegelii) by evaluating several parameters, including hormone levels, immunity, hepatic function, and antioxidant defense. Significant decreases in 17β-estradiol and 11-ketotestosterone levels and gonadosomatic index were observed on day 60 in fish exposed to 10 μg L diuron. Parameters of immunity, such as alternative complement activity, lysozyme activity, and total immunoglobulin levels, were significantly lowered by 60-day exposure to 10 μg L diuron in both fish. Significant decreases in the hepatic enzyme activities of alanine transaminase and aspartate transaminase were observed with an induction of cortisol on day 60 in fish exposed to 10 μg L- diuron. Intracellular malondialdehyde and glutathione levels were significantly increased by 10 μg L- diuron at day 60 with an increase in the enzymatic activities of catalase and superoxide dismutase. Overall, black rockfish were more sensitive to diuron than red seabream. These results suggest that consistent exposure to environmentally relevant concentrations of diuron is detrimental to the reproduction, immunity, and health of marine fish.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.cbpc.2022.109510DOI Listing

Publication Analysis

Top Keywords

marine fish
16
diuron
10
chronic effects
8
diuron marine
8
hormone levels
8
levels immunity
8
antioxidant defense
8
environmentally relevant
8
relevant concentrations
8
concentrations diuron
8

Similar Publications

Testing the Dispersal-Origin-Status-Impact (DOSI) scheme to prioritise non-native and translocated species management.

Sci Rep

December 2024

Global Ecology | Partuyarta Ngadluku Wardli Kuu, College of Science and Engineering, Flinders University, GPO Box 2100, Adelaide, SA, 5001, Australia.

Assessing actual and potential impacts of non-native species is necessary for prioritising their management. Traditional assessments often occur at the species level, potentially overlooking differences among populations. The recently developed Dispersal-Origin-Status-Impact (DOSI) assessment scheme addresses this by treating biological invasions as population-level phenomena, incorporating the complexities affecting populations of non-native species.

View Article and Find Full Text PDF

The development of management strategies for the promotion of sustainable fisheries relies on a deep knowledge of ecological and evolutionary processes driving the diversification and genetic variation of marine organisms. Sustainability strategies are especially relevant for marine species such as the European sardine (Sardina pilchardus), a small pelagic fish with high ecological and socioeconomic importance, especially in Southern Europe, whose stock has declined since 2006, possibly due to environmental factors. Here, we generated sequences for 139 mitochondrial genomes from individuals from 19 different geographical locations across most of the species distribution range, which was used to assess genetic diversity, diversification history and genomic signatures of selection.

View Article and Find Full Text PDF

Chromosome-level genome assembly of the northern snakehead (Channa argus) using PacBio and Hi-C technologies.

Sci Data

December 2024

Key Laboratory of Mariculture (Ocean University of China), Ministry of Education (KLMME), Fisheries College, Ocean University of China, Qingdao, 266003, China.

The evolutionary origins of specialized organs pose significant challenges for empirical studies, as most such organs evolved millions of years ago. The Northern snakehead (Channa argus), an air-breathing fish, possesses a suprabranchial organ, a common feature of the Anabantoidei, offering a unique opportunity to investigate the function and evolutionary origins of specialized organs. In this study, a high-quality chromosome-level reference genome of C.

View Article and Find Full Text PDF

Characterization of a biocomposite film using coconut jelly powder to improve arrowroot starch and sodium alginate film forming properties.

Int J Biol Macromol

December 2024

Department of Marine, Faculty of Fisheries and Marine, Universitas Airlangga, Campus C UNAIR, Mulyorejo, Surabaya 60115, Indonesia; Research Group of Post-harvest, Processing Technology, and Bioproducts, Faculty of Fisheries and Marine, Universitas Airlangga, Mulyorejo, Surabaya 60115, Indonesia. Electronic address:

Composite polymers are promising solution to structural setbacks of starch and alginate-based films due to their hydrophilic attributes. Hence, this study aimed to investigate young coconut jelly powder (CJP), an under-utilized by-waste, as a filler using the casting method to develop a novel biocomposite from increments of CJP (1-3 %) to a blended resin of arrowroot starch, sodium alginate, and glycerol. Moreover, the films were characterized by physicomechanical (visual aspect, thickness, color, moisture content, tensile strength, and elongation at break); surface microstructure; water barrier (water vapor permeability, water solubility, and water activities); thermal, crystallinity, and functional group properties; soil, river water, and seawater biodegradability; and coating application in cherry tomato.

View Article and Find Full Text PDF

The association of parasites and diatoms has been previously reported as an important mechanism to control bacteria and parasites to avoid resistance to chemical usage. The aim of this study was to investigate the association between diatoms genus and parasites within the gastrointestinal compartments (GICs) of commercial fish in fisheries of the marine Pacific coast of Colombia (Buenaventura). A total of 104 GICs from marine fish were sampled.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!