Effects of lead on the spawning potential of the fresh water fish, Anabas testudineus

Lead is one of the toxic heavy metals that pose water pollution problems; lead is known to accumulate in fish tissues and may negatively affect fish reproduction. Seasonal breeder fresh water fish, Anabas testudineus, were collected from a lake in India and tested in a laboratory setting. They were...

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Veröffentlicht in:	Bulletin of environmental contamination and toxicology 1989-12, Vol.43 (6), p.858-863
Hauptverfasser:	Tulasi, S.J. (Osmania University, Hyderabad, India), Reddy, P.U.M, Ramana Rao, J.V
Format:	Artikel
Sprache:	eng
Schlagworte:	ABSORPTION SPECTROSCOPY Anabas testudineus ANIMALS AQUATIC ORGANISMS Biological and medical sciences BIOLOGICAL EFFECTS BODY Body Weight - drug effects BRAIN Brain - drug effects CENTRAL NERVOUS SYSTEM CEREBRO EGGS ENCEPHALE Environmental pollutants toxicology Female FEMALE GENITALS FISHES Fishes - physiology Freshwater GONADS HUEVAS LEAD Lead - toxicity LEAD COMPOUNDS LEAD NITRATES Medical sciences MIGRATION NERVOUS SYSTEM NITRATE NITRATES Nitrates - toxicity NITRATOS NITROGEN COMPOUNDS OEUFS DE POISSON Organ Size - drug effects ORGANS OVAIRE OVARIES OVARIOS Ovary - drug effects OVIPOSICION OVIPOSITION OXYGEN COMPOUNDS PERCIFORMES PERCOIDEI PLOMB PLOMO POLLUTION RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT REPRODUCTION Reproduction - drug effects ROES SPECTROSCOPY Toxicology VERTEBRATES 560300 > Chemicals Metabolism & Toxicology Water WATER POLLUTION
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Zusammenfassung:	Lead is one of the toxic heavy metals that pose water pollution problems; lead is known to accumulate in fish tissues and may negatively affect fish reproduction. Seasonal breeder fresh water fish, Anabas testudineus, were collected from a lake in India and tested in a laboratory setting. They were exposed to various concentrations of lead nitrate and their spawning potential was measured using ovarian oocyte size frequency analyses. Ovary weight and length and lead levels in brain tissues were also measured. Lead exposure was found to decrease the number of ova. The changes in reproductive potential are attributable to either altered levels of corticosteroids or changes in pituitary mediated activity.
ISSN:	0007-4861 1432-0800
DOI:	10.1007/BF01702056