Reproductive Success of Eastern Mosquitofish (Gambusia affinis) Exposed to Pulp and Paper Dominated Receiving Streams and Effects of Masculinization Responses
Abstract:Mosquitofish (Gambusia) are sexually dimorphic; adult males have an elongation of the anal fin to form a copulatory structure known as a gonopodium. Several studies since the early 1980s have reported elongated anal fins in female mosquitofish exposed to pulp and paper mill discharge, a phenomenon known as masculinization. Although adverse impacts have been suggested in these previous reports, the influence of masculinization on reproductive success has not been assessed for pulp mill effluent-exposed eastern … Show more
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