Estrogenic Effects in Feral Male Common Carp (Cyprinus carpio) from Laguna de Bay, Philippines

Issue Date

5-2017

Abstract

This study was conducted to measure 17β-estradiol (E2) levels in Laguna de Bay, Philippines and to examine feral male common carp for evidence of exposure to estrogenic pollutants. Analysis of water samples revealed E2 concentrations of 630 and 550 ng/L from the east and west bay of the lake, respectively. Plasma vitellogenin (VTG) in captured fish ranged from 506 to 4083 ng/mL. In comparison to the reference and west bay groups, fish from the east bay had higher plasma VTG concentrations and reduced gonadosomatic index (GSI). Ovotestis was not observed although some individuals had endocrine-related histopathological alterations in the testis. The degree of biologic effects induced by estrogenic pollutants in tropical freshwater systems like Laguna de Bay need to be further investigated to provide a better comprehension of the fates and effects of these compounds under tropical conditions.

Source or Periodical Title

Bulletin of Environmental Contamination and Toxicology

ISSN

74861

Volume

98

Issue

2

Page

1-9

Document Type

Article

Physical Description

illustrations, tables

Language

English

Subject

17β-estradiol, Common carp, Laguna de Bay, Testis, Vitellogenin

Identifier

DOI:10.1007/s00128-017-2060-3

Digital Copy

yes

Link to Full Text

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