Authors
Travis C Haas, Graham Derryberry, David C Heins, Michael J Blum
Publication date
2021/9
Journal
Freshwater Biology
Volume
66
Issue
9
Pages
1721-1735
Description
- Water impoundment is among the most prevalent and potent forms of anthropogenic environmental modification worldwide. Flow modification can drive morphological changes in riverine species that persist after dam closure, but little is known about the tempo and trajectory of phenotypic responses to impoundment.
- Through geometric morphometric analysis of natural history collections from behind Claiborne Lock and Dam (i.e. in Claiborne Lake reservoir) and nearby Chilatchee Creek (Alabama River Basin, Alabama, U.S.A.), we reconstructed multidecadal chronosequences of morphological change in a stream fish (Cyprinella venusta Girard) to characterise phenotypic responses to impoundment and unrestricted flow. We then conducted cross‐correlation analysis of hydrological and morphological time series to determine whether morphological responses to impoundment are consistent with expected …
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Scholar articles
TC Haas, G Derryberry, DC Heins, MJ Blum - Freshwater Biology, 2021