FISHING RESEARCH - We take a look at a research ship that helps ensure that fish stocks can survive and grow in a strong environment. NEW WHALE RESEARCH VESSEL - "Song of the Whale" is a unique sailing vessel, specially built by an international fund for animal welfare to study whales. COSTA RICA EXPEDITION - Scientists look at the real treasure in Isla de Coco, coral reefs. FINLAND MARINE - It is hoped a European strategy will help restore badly damaged marine life. POLLUTION DETECTOR - We look at a method of detecting pollution in water that takes seconds. PUBLIC RECRUITED FOR SURVEY - Celebrity ornithology Bill Oddie seeks volunteers to help with his 'wildlife survey' database on investigating Britain's 2000 miles of canals and rivers. IRAQI MARSHES - We take a look at the marshlands of southern Iraq.