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Lookup NU author(s): Hannah Dunstan, Dr Gary Caldwell, Emeritus Professor Matt Bentley
Exposure to diatom-derived aldehydes including 2,4-decadienal has been shown to cause undesirable effects on a range of invertebrate organisms ranging from infertility and abortion to pronounced larval malformations. In this study 2,4-decadienal was assayed on Daphnia magna and Salmo salar L. Exposure led to increased physiological stress in Daphnia (as determined by monitoring heart beat rate) and reduced growth. The effect on salmon included reduced hatching success and increased incidence of morphological abnormality, providing further evidence of the teratogenic properties of decadienal. This work demonstrates that decadienal is toxic to invertebrates and vertebrates alike and may represent an important stress factor limiting the recovery of salmon populations in rivers containing aldehyde producing microalgae.
Author(s): Dunstan HJ, Caldwell GS, Bentley MG
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: 56th Annual Meeting of the British Phycological Society.
Year of Conference: 2008
Publisher: British Phycological Society
Notes: Poster presentation.
