Journal•ISSN: 0275-7540
Chemistry and Ecology
Taylor & Francis
About: Chemistry and Ecology is an academic journal published by Taylor & Francis. The journal publishes majorly in the area(s): Organic matter & Adsorption. It has an ISSN identifier of 0275-7540. Over the lifetime, 1590 publications have been published receiving 24488 citations. The journal is also known as: Chemistry and ecology.
Topics: Organic matter, Adsorption, Mediterranean sea, Sediment, Soil water
Papers published on a yearly basis
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TL;DR: The presence of vitellogenin in the plasma is indicative of estrogenic stimulation of the liver in oviparous fish, and rose rapidly and very markedly when trout were maintained in the effluent.
Abstract: The occurrence of hermaphrodite fish in the lagoons of sewage treatment works led us to hypothesize that sewage effluent might contain a substance, or substances, estrogenic to fish. to test this hypothesis, we placed cages containing rainbow trout in the effluent from sewage-treatment works, and one to three weeks later measured the vitellogenin concentration in the plasma of the fish. Vitellogenin is a protein synthesized by the liver of oviparous fish in response to estradiol stimulation; it is then conveyed by the blood to the ovary, where it is sequestered by oocytes to form the yolk. Thus, the presence of vitellogenin in the plasma is indicative of estrogenic stimulation of the liver. an initial study, at a sewage-treatment works, showed that plasma vitellogenin concentrations rose rapidly and very markedly (over 1000-fold in three weeks) when trout were maintained in the effluent. an extensive nationwide survey was then conducted. Results were obtained from fifteen sewage-treatment works d...
1,698 citations
TL;DR: In the 1980s and 1990s, it became increasingly clear that changes in external nutrient loads alone could not entirely explain the severe eutrophication of surface waters in the Netherlands.
Abstract: In the 1980s and 1990s, it became increasingly clear that changes in external nutrient loads alone could not entirely explain the severe eutrophication of surface waters in the Netherlands. Nowadays, ‘internal eutrophication’ has become a widely accepted term in Dutch water management practice to describe the eutrophication of an ecosystem without additional external input of nutrients (N, P, K). This review surveys the principal mechanisms involved in this process. It also discusses possible remedies to combat internal eutrophication.
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