Back to Search
Start Over
Evidence of cylindrospermopsin uptake and clearance in fish ( <scp> Oreochromis niloticus </scp> ) under laboratory conditions
- Source :
- Journal of Fish Biology. 99:1274-1279
- Publication Year :
- 2021
- Publisher :
- Wiley, 2021.
-
Abstract
- Cylindrospermopsin (CYN) is a cyanotoxin that has raised serious concerns about public health in many parts of the world. It can bioaccumulate and affect the health of aquatic organisms, but despite this, few studies have been conducted on CYN uptake and clearance in fish. In this paper, the authors evaluate the uptake and clearance of CYN in the muscle tissue and viscera of juvenile tilapia (Oreochromis niloticus) after exposure to aqueous extracts and whole cells of Cylindrospermopsis raciborskii (CYN-producer). CYN blended with commercial fish food, and three experiments were conducted. In the first trial, fish food, and aqueous extracts containing 0.31 μg CYN g-1 of food per day, was administered to tilapia for 15 days. In the second trial, fish were provided food and intact cells (5.4 μg CYN g-1 of food per day) for 15 days. In the last trial, they were provided fish food and aqueous extracts (0.8 μg CYN g-1 of food per day) for 12 days, and for the next 10 days, the animals were fed food without toxic cell extracts (to simulate a clearance period). The concentration of CYN in muscle tissue and viscera was analysed using ELISA. In the case of juvenile tilapia, the presence of CYN was higher in viscera than in muscle tissue, and the toxin remained in the tissues even after 10 days without the addition of contaminated food. The results suggest that tilapia represents a potential source of CYN transfer through the food web, and this shows the need for a continuous monitoring of this compound in organisms that are used for human and animal consumption.
- Subjects :
- Muscle tissue
food.ingredient
Aquatic Science
Biology
medicine.disease_cause
Cylindrospermopsis raciborskii
chemistry.chemical_compound
Alkaloids
food
medicine
Animals
Food science
Uracil
Ecology, Evolution, Behavior and Systematics
Cyanobacteria Toxins
Toxin
Tilapia
Cichlids
Cyanotoxin
biology.organism_classification
Oreochromis
medicine.anatomical_structure
chemistry
Bioaccumulation
Cylindrospermopsin
Laboratories
Cylindrospermopsis
Subjects
Details
- ISSN :
- 10958649 and 00221112
- Volume :
- 99
- Database :
- OpenAIRE
- Journal :
- Journal of Fish Biology
- Accession number :
- edsair.doi.dedup.....aed999e44be3c0a65112e4a58b6c718f