Edith Davey Ontario County SWCD Under the Hemlock Trees Surface - - PowerPoint PPT Presentation

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Aug 05, 2023 284 likes •445 views

Edith Davey Ontario County SWCD Under the Hemlock Trees Surface roots hold soils Slumping Flooding Streambank Erosion Streambank Stabilization Aquatic Habitat Excess sediment can change a stream from one with a clean gravel bed to one

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Edith Davey Ontario County SWCD

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Under the Hemlock Trees

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Surface roots hold soils

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Slumping

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Flooding

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Streambank Erosion

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Streambank Stabilization

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Aquatic Habitat Excess sediment can change a

stream from one with a clean gravel bed to one with a muddy bottom. With this change many native fish and animals will disappear.

Gravel beds and cobble bars within a stream

provide important spawning areas for many aquatic stream species, including trout and

ther game fish.

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The soil particles cover spawning areas, smothering

trout eggs, aquatic insects, and oxygen producing

plants. Increased turbidity levels (suspended sediment)

in a stream will increase water temperatures, reduce light penetration and plant growth, and affect the ability of fish to locate and capture prey by greatly reducing visibility.

. Trout and other fish can die from the abrasive, gill

clogging effects of suspended sediment, which interferes with their breathing

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Loss of stream cooling may change the species

able to survive – only warm water fish may be able to live there – exchange trout for crappie.

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The streams and areas surrounding them are

home to a large number of fish, including trout, along with insects, salamanders and hundreds of invertebrates. The hemlocks themselves are home to a few different species of migratory birds.

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