Regional Field Guides

🏝️

Florida Keys

The tropical archipelago south of Florida - the flats fishing capital of the world, and North Americ...

Saltwater Tropical

🐊

Florida Everglades

The vast subtropical wetland of southern Florida - a slow-flowing river of grass hosting bass, tarpo...

Brackish Subtropical 7 species

🌾

Okavango Delta

The inland delta of northern Botswana - a UNESCO site with tigerfish, tilapia, and one of the most b...

Freshwater Tropical

🐊

Pantanal Wetlands

The largest tropical wetland on Earth - Brazilian, Bolivian, and Paraguayan flooded savanna with ext...

Freshwater Tropical

🌊

Great Lakes

The five largest freshwater lakes in North America - Superior, Michigan, Huron, Erie, and Ontario -...

Freshwater Temperate 12 species

💎

Lake Malawi

The third-largest African lake and biological wonder - home to 700+ endemic cichlid species, more th...

Freshwater Tropical 109 species

❄️

Lake Baikal

The oldest, deepest, and most voluminous freshwater lake on Earth - a 25-million-year-old rift lake...

Freshwater Temperate 3 species

💧

Lake Tanganyika

The second-deepest and second-oldest lake in the world - a rift lake in East Africa with 240+ endemi...

Freshwater Tropical 92 species

🌍

Lake Turkana

The largest desert lake in the world - Kenya's Nile perch and tilapia stronghold, threatened by hydr...

Freshwater Arid

🌍

Lake Victoria

Africas largest lake by surface area - once home to 500+ cichlid species before the tragic Nile perc...

Freshwater Tropical 251 species

🐧

Southern (Antarctic) Ocean

The frigid waters encircling Antarctica - home to icefish, toothfish, krill, and one of the least-ex...

Saltwater Polar

🧊

Arctic Ocean

The smallest and shallowest ocean - Arctic cod, Arctic char, and Greenland shark inhabit its icy wat...

Saltwater Polar

🪸

Great Barrier Reef

The largest coral reef system on Earth - 2,300 km of Australias northeast coast, home to 1,500 fish...

Saltwater Tropical 155 species

🐠

Coral Triangle

The global epicenter of marine biodiversity - Indonesian, Philippine, and Papuan waters holding 76%...

Saltwater Tropical 572 species

🌳

Amazon River Basin

The largest and most biodiverse river system on Earth - source of over 2,500 fish species and countl...

Freshwater Tropical 3,026 species

🇺🇸

Mississippi River

The great river of North America - 3,730 km from Minnesota to the Gulf of Mexico, hosting 375+ fish...

Freshwater Temperate 9 species

🏺

Nile River

The longest river in the world (or second, disputed with Amazon) - 6,650 km supporting Nile perch, t...

Freshwater Tropical 6 species

🌳

Congo River

The worlds deepest river and second-largest by discharge - home to over 700 fish species, many still...

Freshwater Tropical 474 species

🎼

Danube River

Europes second-longest river, flowing 2,850 km through 10 countries - historically home to beluga st...

Freshwater Temperate 6 species

🎣

Great Lakes Tributaries

The rivers flowing into the Great Lakes - Steelhead and salmon runs from Lake Michigan and Lake Onta...

Freshwater Temperate

🐟

Mekong River

Southeast Asias great river - biodiversity second only to the Amazon among freshwater systems, home...

Freshwater Tropical 81 species

🌴

Orinoco River Basin

The third-largest river system in South America - biodiversity hotspot with unique cichlids, peacock...

Freshwater Tropical

🐉

Yangtze River

The longest river in Asia - historically home to the Chinese paddlefish, Yangtze finless porpoise, a...

Freshwater Temperate 6 species

🌍

Zambezi River

The fourth-longest African river - home to tigerfish, Nile crocodiles, and important fisheries suppo...

Freshwater Tropical

🇵🇪

Humboldt Current

The cold Pacific current running north along the coast of Chile and Peru - the most productive coast...

Saltwater Temperate

🇦🇺

Tasman Sea

The temperate Pacific sea between Australia and New Zealand - highly productive with kingfish, snapp...

Saltwater Temperate

🇮🇹

Adriatic Sea

The northern arm of the Mediterranean between Italy and the Balkans - long fishing tradition, now he...

Saltwater Temperate

🇬🇷

Aegean Sea

The Mediterranean arm between Greece and Turkey - deep, warm, and central to Greek and Turkish coast...

Saltwater Temperate

⚓

Baltic Sea

The worlds largest brackish sea - low salinity, cold water, and a mix of marine and freshwater speci...

Brackish Temperate 8 species

🇦🇺

Bass Strait

The temperate strait between mainland Australia and Tasmania - shallow, productive, and central to s...

Saltwater Temperate

🌊

Black Sea

The largest anoxic body of water on Earth - 90% of its depths lack oxygen. Home to anchovy, sturgeon...

Saltwater Temperate 4 species

🏝️

Caribbean Sea

The tropical sea of the Americas - the second-largest coral reef system, extraordinary biodiversity,...

Saltwater Tropical 412 species

🪸

Coral Sea

The tropical Pacific sea off northeastern Australia - includes the Great Barrier Reef and hosts exte...

Saltwater Tropical

🌊

Mediterranean Sea

The great inland sea of the ancient world - fished, sailed, and mythologized for over 5,000 years. O...

Saltwater 9 species

🇳🇿

New Zealand Coastal Waters

The temperate coastal waters and vast EEZ of New Zealand - deepwater fisheries for hoki, orange roug...

Saltwater Temperate

⚓

North Sea

A shallow, productive northern European sea - historically one of the most important commercial fish...

Saltwater Temperate 8 species

❄️

Patagonian Shelf

The cold-temperate continental shelf off Argentina and the Falklands - major hoki, southern blue whi...

Saltwater Subpolar

🪸

Red Sea

A narrow tropical sea between Africa and Arabia - among the worlds warmest and saltiest, home to ove...

Saltwater Tropical 1,354 species

🐧

Ross Sea

The Antarctic sea beneath the Ross Ice Shelf - one of the most pristine marine ecosystems on Earth,...

Saltwater Polar

🌵

Sea of Cortez

The Gulf of California - Jacques Cousteaus "aquarium of the world" - 900+ fish species between Baja...

Saltwater Subtropical 6 species

🎌

Sea of Japan

A marginal sea between Japan and the Asian mainland - home to yellowtail, mackerel, salmon, and the...

Saltwater Temperate 4 species

🇫🇷

Bay of Biscay

The gulf between western France and northern Spain - historic Basque cod and tuna fisheries, and mod...

Saltwater Temperate

🦀

Chesapeake Bay

The largest estuary in the United States - a nursery for striped bass, blue crabs, oysters, and rock...

Brackish Temperate 6 species

🇺🇸

Puget Sound

The complex glacial fjord system of Washington State - salmon, orcas, and rich shellfish fisheries s...

Saltwater Temperate

🇦🇷

Rio de la Plata Basin

The vast estuary of the Parana-Uruguay river system - Argentina and Uruguay coastal fisheries.

Brackish Temperate

🦀

Gulf of Mexico

The largest gulf in the world - a warm, productive body of water critical to US and Mexican commerci...

Saltwater Subtropical 8 species

☀️

Persian Gulf

The hot, hypersaline gulf between Iran and Arabia - the warmest sea on Earth. Home to pearl oysters,...

Saltwater Tropical 121 species

🏝️

Torres Strait

The shallow tropical strait between Cape York (Australia) and Papua New Guinea - historically vital...

Saltwater Tropical