books by subject
Hydrobiology

"Savage Seas"

Seasons of the Whale: Riding the Currents of the North Atlantic

On the Marshes: A journey into England's waterlands

Leviathan

Marine Fishes: 500+ Essential-to-know Aquarium Species (PocketExpert Guide)

Salmon: A Fish, the Earth, and the History of a Common Fate

Penguins

Nudibranchs

Sharks

Cod

Ecology of Fresh Waters: Man and Medium, Past to Future

Coastal-Marine Conservation: Science and Policy

Applications of Chlorophyll Fluorescene

Stable Isotope Techniques in the Study of Biological Processes and Functioning of Ecosystems

The Shark Watcher's Handbook: A Guide to Sharks and Where to See Them

An Interpet Guide To Fancy Goldfishes :

Many Things Under a Rock: The Mysteries of Octopuses

Life Between the Tides: In Search of Rockpools and Other Adventures Along the Shore

Economic Analysis for Ecosystem-Based Management: Applications to Marine and Coastal Environments

Marine Ecology: Processes, Systems, and Impacts

Marine Ecology: Processes, Systems, and Impacts

The Book of the Shark

Ocean Life

Encyclopaedia of Aquaria

The Late, Great Lakes: An Environmental History

Fossils and Paleontology for kids: Facts, Photos and Fun Children's Fossil Books

Blowfish's Oceanopedia: 291 Extraordinary Things You Didn't Know About the Sea

Seashore

Shallow Seas of Wales, The
