Sawfish
Sawfish are mostly found in relatively shallow waters, typically at depths less than , and occasionally less than . Young prefer very shallow places and are often found in water only deep. Sawfish can occur offshore, but are rare deeper than . An unidentified sawfish (either a largetooth or smalltooth sawfish) was captured off Central America at a depth in excess of .
Smooth toadfish
The smooth toadfish is found along Australia's eastern and southeast coast, from Moreton Bay in southeastern Queensland to Port Lincoln in South Australia as well as Kangaroo Island and Tasmania. It is one of the most abundant fishes in the muddy areas of Port Philip Bay. It generally lives in shallow water less than 3 m (10 ft) deep, often over mudflats in estuaries. In areas of seagrass beds, smooth toadfish are more commonly found in sand areas bordering on the seagrass patches. They are more commonly found in seagrass patches in water less than 1.5 m (5 ft) deep rather than deeper water of 3.5–6 m (11–20 ft). A South Australian field study on wrack and associated fauna found that the smooth toadfish was associated with larger volumes and aggregations containing green algae.