Influence of Riparian Vegetation on Posteruption Survival of Coho Salmon Fingerlings on the West-Side Streams of Mount St. Helens, Washington

Martin, Douglas J.; Wasserman, Lawrence J.; Dale, Virginia H.

doi:10.1577/1548-8659(1986)6<1:iorvop>2.0.co;2

Cited by 19 publications

(21 citation statements)

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“…(ii) At a more extreme level, should there be a catastrophic event in the natal habitat that wipes out the spawning population/cohort there, then a few individuals that have strayed elsewhere carrying that population’s genes will survive, e.g. following the eruption of Mt St Helens in western North America in 1980, catchments draining the mountain were seriously depopulated for several years (Martin et al . 1986); presumably the straying of otherwise homing species would have achieved re‐population by salmonids (and survival of the stock’s distinctive genetic composition/adaptation) once river conditions recovered, had this not been supplemented by hatchery stocking (Bisson et al .…”

Section: Homingmentioning

confidence: 99%

Anadromy and homing: two life‐history traits with adaptive synergies in salmonid fishes?

McDowall¹

2001

Fish and Fisheries

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Anadromy and homing are two traits found widely amongst teleost fishes. They co‐occur in salmonid fishes, and probably also in other fish families. Anadromy provides fish with the opportunity for more rapid growth, larger size, and higher fecundity through the exploitation of rich food resources and favourable growing temperatures in the sea, but may result in higher predation mortalities and has the tendency to disperse stocks very widely. Homing fosters adaptation of stocks to favourable local spawning conditions, but the dispersive effects of anadromy, in the absence of homing, may tend to break down such local adaptation. A low percentage of straying in species that home may have long‐term evolutionary advantages. This paper explores the question of whether homing may be a preadaptation for successful evolution of anadromy, or whether the two attributes have coevolved.

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Section: Homingmentioning

confidence: 99%

Anadromy and homing: two life‐history traits with adaptive synergies in salmonid fishes?

McDowall¹

2001

Fish and Fisheries

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“…For example, the abundance of LWD was correlated with higher densities of juvenile salmonids in winter (Murphy et al, 1984). Large woody debris also provides cover and thereby protects fish from predators (Martin et al, 1986). Through regulating sediment and organic matter transport, LWD also influences nutrient availability within aquatic ecosystems (Gurnell et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

Using LiDAR to characterize logjams in lowland rivers

et al. 2015

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“…While both disturbance types alter the habitats available for aquatic communities, debris flows drastically reconfigure channels (Gomi et al , 2002; Hassan et al , 2005). The prevalence of exposed bedrock in debris flow channels provides poor habitat for many aquatic invertebrates, and pools that do exist often lack cover, making them less than ideal for fish (Martin et al , 1986). Nonetheless, fish do colonize soon after the disturbance in available habitats (Lamberti et al , 1991; Roghair et al , 2002; Carline and McCullough, 2003; Cover et al , 2010).…”

Section: Introductionmentioning

confidence: 99%

Biological and water quality responses to hydrologic disturbances in third‐order forested streams

et al. 2011

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We compared stream ecosystem responses to two types of disturbances: flood and debris flows. A large storm in February 1996 disturbed four similarly sized sub‐watersheds of the Calapooia River, in the Cascade Mountains of Oregon, USA. All sub‐watersheds had flood and in two, 31 and 81% of the perennial channel, a debris flow affected the channel. For 8 years, we used a suite of approaches: stream temperature, nutrient regime, periphyton and macroinvertebrate assemblages, and resident trout abundance and habitat to evaluate the persistence of instream impacts. Differences in stream temperatures and nitrate‐nitrogen concentrations were evident, probably, due to the removal of vegetation and modification of riparian soils at the debris flow sites. Instream biological responses varied. After the event, fish, including trout, were rare with no fish at the debris flow sites. Within 6 years, trout densities (Oncorhynchus mykiss and Oncorhynchus clarki) were similar and young‐of‐the‐year trouts were common. In contrast, periphyton and macroinvertebrate assemblages differed. Periphyton biomass was lower and nitrogen‐fixing periphyton was more abundant at the debris flow sites. Macroinvertebrate assemblage diversity was higher at the debris flow sites due to fewer dominant taxa. Macroinvertebrate functional feeding groups also differed with fewer gatherers and more scrapers at the debris flow sites. Debris flow impacts related to loss of riparian canopy will probably persist until mature red alder stands are re‐established along stream‐reaches affected by debris flows to provide nitrogen input and shade. Copyright © 2011 John Wiley & Sons, Ltd.

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Influence of Riparian Vegetation on Posteruption Survival of Coho Salmon Fingerlings on the West-Side Streams of Mount St. Helens, Washington

Cited by 19 publications

References 0 publications

Anadromy and homing: two life‐history traits with adaptive synergies in salmonid fishes?

Anadromy and homing: two life‐history traits with adaptive synergies in salmonid fishes?

Using LiDAR to characterize logjams in lowland rivers

Biological and water quality responses to hydrologic disturbances in third‐order forested streams

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