And sure enough, there's Frank Sinatra singing, "In shallow shoals, English soles do it/Goldfish in the privacy of bowls do it."

Because of this, logperch tend to spawn in shallow rocky shoals, with high oxygen availability.

By 1894, shallow and dangerous shoals put an end to steamboating.

Before the Billy Bishop Toronto City Airport was built, the waterway was wide with a shallow sandy shoal surrounding what became Hanlan's Point.

It ran onto a shallow shoal near Turning Island in Georgian Bay on July 30, 1907, caught fire and sank in six feet of water.

The shapes of the reefs that make up the Great Barrier were a lighter sea color under the water, and some, the shallower shoals, dark at the center where they were above the waterline at low tide.

When smugglers are pursued at night they sometimes try to outwit the authorities by winding through the dark, shallow shoals and sandbars of the Florida Keys at up to 60 miles an hour.

After spawning both parents leave the nests buried in shallow shoals until the eggs hatch.

Sharks from the distant deep and from the shallow shoals where unknowing weekend anglers searched for other sport fish, unaware that gigantic lemon sharks, known to eat man, lurked there too.

It was initially installed on a shallow shoal, Seven Foot Knoll, at the mouth of the Patapsco River.