The fish congregate in shallow areas with sandy or gravelly substrates and rise to the surface.

And, it follows, that these smaller fish, insects and shrimp congregate where their food is most concentrated.

Variations in elevation often represent places where fish congregate.

The warm water from copious springs runs into a little bay of the sea in which fish congregate in great numbers.

Adults of most species are more or less solitary, while young and half-grown fish frequently congregate.

It could, if made to feel inclined, restrict indiscriminate fishing gear or close areas where young fish congregate.

Young and half-grown fish frequently congregate in shoals.

The fish congregate around submerged aquatic vegetation that provides them with food and shelter.

Pelagic fish generally are fascinated by floating objects, and congregate about them.

Rebecca and I walk through the saltwater exhibits, where fish congregate in bright splashes like kites against an open sky.