Metabolic effects of kraft mill effluents on the eel Anguilla anguilla L

Journal Article · Wed Aug 01 04:00:00 EDT 1990 · Ecotoxicology and Environmental Safety; (USA)

DOI:https://doi.org/10.1016/0147-6513(90)90041-3· OSTI ID:6166714

Santos, M A; Pires, F; Hall, A ^[1]

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1. Univ. of Aveiro (Portugal)

Yellow eels (Anguilla anguilla L.) with an average weight of 60 g were used in this experiment. The fish were caught in June/July at the Aveiro Lagoon on the Portuguese West Coast, transported to the Department of Biology, Aveiro University, and kept in aerated aquaria for 1 week before the experiment started. The eels were then exposed for 1 and 3 weeks to 75 and 50% of the kraft pulp mill effluent. The eels exposed to the kraft pulp mill effluent developed an increase in red blood cell number per cubic millimeter and several biochemical changes, such as an increase in plasma lactate and sodium and a decrease in plasma pyruvate and potassium. Histological examination of the experimental eels exposed to the 50% kraft pulp mill effluent revealed deep alteration of the tissue structure, such as disruption of the skin and edematous hypertrophy of covering epithelial cells in secondary gill lamellae. The kidney had damage of the renal tubules. The liver developed necrosis supported by a significant decrease in GOT and GPT activity. The spleen had an increase in blood content as well as in pigment centers. Previous results indicated the kraft pulp mill effluent causes tissue damage and consequent metabolic changes in the eel Anguilla anguilla L.

• OSTI ID: 6166714
• Journal Information: Ecotoxicology and Environmental Safety; (USA), Journal Name: Ecotoxicology and Environmental Safety; (USA) Vol. 20:1; ISSN EESAD; ISSN 0147-6513
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALKALI METALS
ANIMAL TISSUES
ANIMALS
AQUATIC ORGANISMS
BIOLOGICAL MATERIALS
BLOOD
BLOOD CELLS
BODY
BODY FLUIDS
CARBOXYLIC ACID SALTS
CARBOXYLIC ACIDS
CHEMICAL EFFLUENTS
DIGESTIVE SYSTEM
EEL
ELEMENTS
EPITHELIUM
ERYTHROCYTES
FISHES
GILLS
GLANDS
INDUSTRIAL WASTES
INDUSTRY
KETO ACIDS
KIDNEYS
LACTATES
LIVER
MATERIALS
METABOLISM
METALS
NECROSIS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANS
PAPER INDUSTRY
PATHOLOGICAL CHANGES
POLLUTION
POTASSIUM
PYRUVIC ACID
RESPIRATORY SYSTEM
SENSITIVITY
SODIUM
SPLEEN
TISSUES
TOXICITY
VERTEBRATES
WASTES
WATER POLLUTION
WOOD PRODUCTS INDUSTRY
XENOBIOTICS