Posts Tagged ‘Salmon’

 BY JARED BREY

Why a Maryland landscape architect restores brook trout habitat in his free time.

FROM THE AUGUST 2019 ISSUE OF LANDSCAPE ARCHITECTURE MAGAZINE.

 

The underbelly of an eastern brook trout, especially when it is spawning, is orange and pink like a sunrise, and its back is dappled brown and green like a forest floor. The spots along its lateral line are small and circular like pink and yellow confetti, and the vermiculations on its back are yellowish and serpentine, like a Polynesian tattoo. It is a small fish, typically no longer than about 10 and a half inches—the height of this page—fully grown. It breeds in streams as far west as Minnesota and as far south as the extent of the Appalachian Mountains, in Georgia. First described in 1814, the species is thought to have come into its own during the Pliocene Epoch, between two million and five million years ago. Unlike the brown trout, which is commonly stocked for sportfishing, the brook trout is a member of the char genus. Both are members of the Salmonidae family, which also includes salmon.

The brook trout insists on cold water, and prefers to spend time in waterways with an even distribution of riffles and pools. When it is feeding, on plankton at first and later on insects as it matures, the fish wants to spend as little energy as possible to acquire food. It will hide in shadow in deep pools, and wait for bugs to come surfing down the thin seam of fast water that flows downstream from shallow rapids. If it senses an opportunity, it will strike. Sometimes it will catch a mayfly nymph, and sometimes it will catch an artificial fly tied to a fishing line owned by Scott Scarfone, ASLA. (more…)

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BY KATHARINE LOGAN

sea wall _blog

New design for Seattle’s Elliott Bay Seawall will include habitat for young salmon and a glass-floored promenade to allow light into the ocean.

From the July 2014 issue of Landscape Architecture Magazine.

Before Seattle grew up on its shores, Elliott Bay was a bluff-backed beach, with intertidal marshes and mudflats providing a complex and varied habitat for birds, fish, and marine invertebrates. Its sloping beaches offered salmon a safe passage through shallow waters, with plenty to eat along the way.

The growth of Seattle changed that. The developing city filled and leveled its waterfront behind a seawall built on densely spaced and creosote-blackened pilings. Deep, dark, and toxic, the urban shoreline repels migrating salmon out into the bay on a difficult journey where they become easy prey for other fish and marine mammals.

(more…)

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