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Linking landscapes and habitat suitability scores for diadromous fish restoration in the Susquehanna River basin

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dc.contributor.authorKocovsky, P M
dc.contributor.authorRoss, R M
dc.contributor.authorDropkin, D S
dc.date2023-09-23T05:05:12.000
dc.date.accessioned2024-04-26T17:21:07Z
dc.date.available2024-04-26T17:21:07Z
dc.date.issued2008-01-01
dc.description.abstractDams within the Susquehanna River drainage, Pennsylvania, are potential barriers to migration of diadromous fishes, and many are under consideration for removal to facilitate fish passage. To provide useful input for prioritizing dam removal, we examined relations between landscape-scale factors and habitat suitability indices (HSIs) for native diadromous species of the Susquehanna River. We used two different methods (U.S. Fish and Wildlife Service method: Stier and Crance [1985], Ross et al. [1993a, 1993b, 19971, and Pardue [ 1983]; Pennsylvania State University method: Carline et al. [ 19941) to calculate HSIs for several life stages of American shad Alosa sapidissima, alewives Alosa pseudoharengus, and blueback herring Alosa aestivalis and a single HSI for American eels Anguilla rostrata based on habitat variables measured at transects spaced every 5 kin on six major Susquehanna River tributaries. Using geographical information systems, we calculated land use and geologic variables upstream from each transect and associated those data with HSIs calculated at each transect. We then performed canonical correlation analysis to determine how HSIs were linked to geologic and land use factors. Canonical correlation analysis identified the proportion of watershed underlain by carbonate rock as a positive correlate of HSIs for all species and life stages except American eels and juvenile blueback herring. We hypothesize that potential mechanisms linking carbonate rock to habitat suitability include increased productivity and buffering capacity. No other consistent patterns of positive or negative correlation between landscape-scale factors and HSIs were evident. This analysis will be useful for prioritizing removal of dams in the Susquehanna River drainage, because it provides a broad perspective on relationships between habitat suitability for diadromous fishes and easily measured landscape factors. This approach can be applied elsewhere to elucidate relationships between fine- and coarse-scale variables and suitability of habitat for fishes
dc.description.pages906-918
dc.identifier.urihttps://hdl.handle.net/20.500.14394/27419
dc.relation.ispartofNorth American Journal of Fisheries Management
dc.source.issue28
dc.source.statuspublished
dc.subjectAlosa aestivalis
dc.subjectAlosa pseudoharengus
dc.subjectAlosa sapidissima
dc.subjectAmerican eel
dc.subjectAmerican shad
dc.subjectAnguilla
dc.subjectAnguilla rostrata
dc.subjectbarriers
dc.subjectblueback herring
dc.subjectdam removal
dc.subjectdams
dc.subjecteels
dc.subjectfish passage
dc.subjecthabitat
dc.subjectherring
dc.subjectjuvenile
dc.subjectmechanisms
dc.subjectmigration
dc.subjectproductivity
dc.subjectrestoration
dc.subjectshad
dc.subjectSusquehanna River
dc.subjectupstream
dc.subjectwatershed
dc.subjectwildlife
dc.titleLinking landscapes and habitat suitability scores for diadromous fish restoration in the Susquehanna River basin
dc.typearticle
dc.typearticle
digcom.contributor.authorKocovsky, P M
digcom.contributor.authorRoss, R M
digcom.contributor.authorDropkin, D S
digcom.identifierfishpassage_journal_articles/224
digcom.identifier.contextkey2446849
digcom.identifier.submissionpathfishpassage_journal_articles/224
dspace.entity.typePublication
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