Gulf Islands National Park Reserve of Canada

The Lyall Creek Story

Anatomy of a Creek | Restoring the Lyall Creek Habitat | The Salmon Species of Lyall Creek | The Riparian Species of Lyall Creek | Baseline Inventory and Monitoring

Anatomy of a Creek

Picture of the Lyall Creek estuary The Saturna Island estuary
© T. Golumbia, Parks Canada / 2005

The estuary is the semi-enclosed coastal body of water where the creek meets the ocean.

The headwaters are the small streams that are the source of the river.

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Restoring the Lyall Creek Habitat

The Lyall Creek Habitat The Lyall Creek habitat
© J. Mercer, Parks Canada / 2005

Over enormous amounts of time, species of plants and animals living in the same area evolve very complex systems. These are called habitats.

Lyall Creek provides habitat for a vast number of species.

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The Salmon Species of Lyall Creek

Lyall Creek supports populations of Coho (Oncorhynchus kisutch), Chum (Oncorhynchus keta) and sea-run Cutthroat Trout (Oncorhynchus clarki).

Picture of a chum The chum salmon
© L. Sumi, Parks Canada / 2005

It is the only protected salmon-bearing watershed in the Southern Gulf Islands.

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The Riparian Habitat of Lyall Creek

Picture of Lyall Creek Wetland The Lyall Creek wetland
© L. Sumi, Parks Canada / 2005

Riparian areas are the zones between the land and the water.

They filter out pollutants from land runoff and prevent erosion. They also supply shelter and food for many aquatic animals.

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Baseline Inventory and Monitoring

Picture of Parks Canada biology team conducting electro fishing survey Parks Canada biology team conducting electrofishing survey
© L. Sumi, Parks Canada / 2005

Various surveys have been conducted in recent years to gain a better understanding and knowledge of the flora and fauna that are supported by the creek.

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