Barriers to upstream passage by two migratory sculpins, prickly sculpin (<i>Cottus asper</i>) and coastrange sculpin (<i>Cottus aleuticus</i>), in northern Puget Sound lowland streams

Thomas, LeMoineMichael; Richard, BodensteinerLeo

doi:10.1139/cjfas-2014-0029

Cited by 17 publications

(8 citation statements)

References 23 publications

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“…We defined characteristics of potential natural (cascades and waterfalls) and anthropogenic (culverts, diversion dams) barriers using published literature and governmental reports for each species (westslope cutthroat trout and bull trout: Behlke, Kane, McLean, & Travis, 1991; Bell, Delacy, Paulik, Bruya, & Scott, 1981; Reiser & Peacock, 1995; WDFW, 2009; sculpin: Adams et al., 2015; LeMoine & Bodensteiner, 2014; Utzinger, Roth, & Peter, 1998; see Figure S1). Description of barriers to longnose dace passage are nonexistent, but a body size similar to sculpin suggests they have similar passage requirements (Nislow, Hudy, Letcher, & Smith, 2011).…”

Section: Methodsmentioning

confidence: 99%

Landscape resistance mediates native fish species distribution shifts and vulnerability to climate change in riverscapes

LeMoine

Eby

Clancy

et al. 2020

Global Change Biology

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A broader understanding of how landscape resistance influences climate change vulnerability for many species is needed, as is an understanding of how barriers to dispersal may impact vulnerability. Freshwater biodiversity is at particular risk, but previous studies have focused on popular cold‐water fishes (e.g., salmon, trout, and char) with relatively large body sizes and mobility. Those fishes may be able to track habitat change more adeptly than less mobile species. Smaller, less mobile fishes are rarely represented in studies demonstrating effects of climate change, but depending on their thermal tolerance, they may be particularly vulnerable to environmental change. By revisiting 280 sites over a 20 year interval throughout a warming riverscape, we described changes in occupancy (i.e., site extirpation and colonization probabilities) and assessed the environmental conditions associated with those changes for four fishes spanning a range of body sizes, thermal and habitat preferences. Two larger‐bodied trout species exhibited small changes in site occupancy, with bull trout experiencing a 9.2% (95% CI = 8.3%–10.1%) reduction, mostly in warmer stream reaches, and westslope cutthroat trout experiencing a nonsignificant 1% increase. The small‐bodied cool water slimy sculpin was originally distributed broadly throughout the network and experienced a 48.0% (95% CI = 42.0%–54.0%) reduction in site occupancy with declines common in warmer stream reaches and areas subject to wildfire disturbances. The small‐bodied comparatively warmer water longnose dace primarily occupied larger streams and increased its occurrence in the lower portions of connected tributaries during the study period. Distribution shifts for sculpin and dace were significantly constrained by barriers, which included anthropogenic water diversions, natural step‐pools and cascades in steeper upstream reaches. Our results suggest that aquatic communities exhibit a range of responses to climate change, and that improving passage and fluvial connectivity will be important climate adaptation tactics for conserving aquatic biodiversity.

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Section: Methodsmentioning

confidence: 99%

Landscape resistance mediates native fish species distribution shifts and vulnerability to climate change in riverscapes

LeMoine

Eby

Clancy

et al. 2020

Global Change Biology

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“…Furthermore, East Twin Creek had vertical drops (due to rocks and a culvert) . 20 cm, a height shown to prevent upstream passage of other sculpin species (Utzinger et al, 1998;LeMoine, 2007).…”

Section: Resultsmentioning

confidence: 99%

Summer Stream Temperatures Influence Sculpin Distributions and Spatial Partitioning in the Upper Clark Fork River Basin, Montana

Adams

Schmetterling

Neely

2015

Copeia

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The upper Clark Fork River basin of western Montana supports a poorly understood sculpin (Uranidea spp.) fauna that has perplexed ichthyologists and fish ecologists since the late 1800s. During our study, the basin contained three sculpin taxa whose taxonomy was under revision. All three taxa were formerly referred to the genus Cottus but are now treated as Uranidea. Our goal was to improve understanding of the distribution and ecology of two of the taxa. From 2006 to 2009, we sampled 144 reaches in 31 streams and rivers to determine distributions of each taxa across the study area and within streams. We collected habitat data in 2007 and stream temperature data from 2006-2009 to identify correlates of sculpin distributions. In streams where both taxa occurred, Rocky Mountain Sculpin Uranidea sp. cf. bairdii were downstream and Columbia Slimy Sculpin U. sp. cf. cognata were upstream with a syntopic zone in between. Summer stream temperatures strongly influenced sculpin distributions, with mean August 2007 water temperatures increasing in order of reaches characterized as: Columbia Slimy Sculpin-dominated, syntopic, Rocky Mountain Sculpindominated, and no sculpin. Columbia Slimy Sculpin occurred in cold tributaries of the Blackfoot, Clark Fork, and Bitterroot rivers and in two coldwater refugia in the mainstem Bitterroot River. In contrast, Rocky Mountain Sculpin occupied warmer downstream segments of many Blackfoot and Clark Fork river tributaries as well as some mainstem reaches of both rivers but were absent from the Bitterroot River drainage. Persistence of the taxa will likely depend, both directly and indirectly, on future water temperatures, and thus, sculpins are appropriate targets for researching and monitoring biological changes resulting from climate change.

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“…This information demonstrates that both species richness and the densities of species differ among stream types. Furthermore, our results support the contention that sculpin are an effective indicator taxon for alterations to stream connectivity (Favaro et al ., ) given their benthic habit and weak swimming abilities (Nelson & Paetz, ; Lemoine, Bodensteiner & Tierney, ). Conversely, Northern Redside Dace and Finescale Dace densities were positively associated with culverted streams in the study area.…”

Section: Discussionmentioning

confidence: 99%

Industrial road crossings drive changes in community structure and instream habitat for freshwater fishes in the boreal forest

et al. 2015

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Summary Stream crossing structures are an increasingly prevalent anthropogenic feature on North American riverscapes, particularly in watersheds affected by industrial resource development in sensitive boreal environments. If improperly managed, stream crossings have the potential to alter fish habitat and impede fish movement. This study assessed instream habitat characteristics and fish communities from 33 culverted, bridged and reference streams in an industrialising region of the boreal forest in west‐central Alberta. Mixed‐effects modelling and multivariate analysis were used to determine impacts of stream crossings at three scales: whole‐stream scale, within‐stream scale and the interaction of scales. Instream habitat characteristics such as mean depth, water velocity, percent fines, turbidity, water temperature and dissolved oxygen showed significant between‐stream as well as within‐stream differences among stream crossings. The majority of fish species exhibited significantly lower densities (n m−2) in upstream habitats as compared to downstream habitats, including a significant reduction in Slimy Sculpin densities in culverted streams. Multivariate tests corroborated these results, showing that fish assemblages differ as a function of stream type. This study suggests industrial stream crossings influence abiotic habitat characteristics in freshwater ecosystems, restrict biotic connectivity and impact fish community structure at the whole‐stream and within‐stream scales. Alterations to stream ecosystems associated with stream crossings may be driving large‐scale changes in stream fish communities in the boreal forest. With expanded development expected in much of North America's boreal region, mitigation measures which limit impacts from stream crossings are needed to ensure proper ecosystem function in freshwater systems.

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Barriers to upstream passage by two migratory sculpins, prickly sculpin (Cottus asper) and coastrange sculpin (Cottus aleuticus), in northern Puget Sound lowland streams

Cited by 17 publications

References 23 publications

Landscape resistance mediates native fish species distribution shifts and vulnerability to climate change in riverscapes

Landscape resistance mediates native fish species distribution shifts and vulnerability to climate change in riverscapes

Summer Stream Temperatures Influence Sculpin Distributions and Spatial Partitioning in the Upper Clark Fork River Basin, Montana

Industrial road crossings drive changes in community structure and instream habitat for freshwater fishes in the boreal forest

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