Juergen Freund / Mermaid's wineglass algae (Acetabularia calyculus) Batangas, Philippines.

Juergen Freund / Sargassum seaweed (Sargassum sp) floating on the sea surface, Palawan, Philippines, May

Juergen Freund / Hard brain coral (Platygyra sp) half covered with a pink algae, Moluccas Islands, Indo-pacific

Juergen Freund / Sargassum frogfish / anglerfish (Histrio histrio) in its floating Sargassum seaweed home, El Nido, Palawan, Philippines

Juergen Freund / Crop of Seaweed floating in rows in a seaweed field, Tawi Tawi, Philippines

Juergen Freund / New Zealand fur seals (Arctocephalus forsteri) swimming amongst kelp. Albany, Western Australia

Juergen Freund / Garibaldi fish {Hypsypops rubicunda} in kelp forest, California, USA, Pacific coast

Juergen Freund / Newly caught green turtles (Chelonia mydas) are placed in the quad bike to be brought to shore for the research activity, many covered in barnacles and algae. Townsville, Queensland, Australia, August...

Juergen Freund / Dr. Ellen Ariel examing starving Green turtle (Chelonia mydas). With the loss of seagrass beds due to floods and cyclone damage, turtles are starving all along the coast of North Queensland. Townsvill...

Juergen Freund / Stella Chiu Freund holds a staving green turtle (Chelonia mydas) overgrown with algae and barnacles. With the loss of seagrass beds due to floods and cyclone damage, turtles are starving all along the...

Juergen Freund / Starving Green turtle (Chelonia mydas) overgrown with algae and barnacles, with head covered to keep it calm. With the loss of seagrass beds due to floods and cyclone damage, turtles are starving all...

Juergen Freund / Tiny pygmy seahorse (Hippocampus colmani) on Halameda algae, West New Britain, Papua New Guinea.

Juergen Freund / Green grape algae / Sea grape (Caulerpa sp.) North Sulawesi, Indonesia.

Juergen Freund / Algae grown in laboratory as food for young Oysters at the Jewelmer Pearlfarm, Palawan, Philippines, May 2009

Juergen Freund / Cactus coralline macroalgae (Halimeda sp) on seabed, Bunaken island, Sulawesi, Indonesia, Indo-pacific.

Juergen Freund / Algae sailor's eyeball / Bubble algae (Valonia ventricosa) Kimbe Bay, West New Britain, Papua New Guinea.

Juergen Freund / Nudibranch (Phyllodesmium longicirrum), known as a solar-powered nudibranch because of its symbiotic relationship with photosynthetic zooxanthellae in its tissues. Lembeh Strait, North Sulawesi, Indon...

Juergen Freund / Harvested seaweed / red algae (Kappaphycus alvarezii) of drying on beach, a commercial crop for export, Philippines, May 2006.

Juergen Freund / Harvested seaweed / red algae (Kappaphycus alvarezii) drying on beach, a commercial crop for export, Philippines, May 2006.

Juergen Freund / Sargassum seaweed (Sargassum sp) floating at the surface, split level, El Nido, Palawan, Philippines, May.

Juergen Freund / Harvested seaweed / red algae (Kappaphycus alvarezii) in the process of drying on beach, a commerical crop for export, Philippines, May 2006.

Juergen Freund / Woman and boy carrying seaweed / red algae (Kappaphycus alvarezii) from seaweed farm, harvested and dried for export, Philippines, May 2006.

Juergen Freund / Hard brain coral (Platygyra sp) covered with pink algae and fish, Moluccas Islands, Indo-pacific.

Juergen Freund / Sargassum frogfish / anglerfish (Histrio histrio) camouflaged amongst floating Sargassum seaweed, Palawan, Philippines.

Juergen Freund / Bantay Dagat / Sea patroller tending his seaweed farm, Palawan, Philippines, May 2009.

Juergen Freund / Seaweed farmer maintaining his seaweed farm. Small family farms are successful as farmers work hard to protect their crops from grazing fish, feeding turtles and sea urchins, and bacterial infections...

Juergen Freund / Sample of Green algae from Coral Reef census, Lizard Island, Queensland, Australia, April 2008. To store the algae, specimens are pressed and dried out in a herbarium press, this simple process preser...

Juergen Freund / Sample of Green algae {Caulerpa filicoides} from Coral Reef census, Lizard Island, Queensland, Australia, April 2008. To store the algae, specimens are pressed and dried out in a herbarium press, this...

Juergen Freund / Sample of Green algae {Caulerpa sp} from Coral Reef census, Lizard Island, Queensland, Australia, April 2008. To store the algae, specimens are pressed and dried out in a herbarium press, this simple...

Juergen Freund / Sample of Green algae {Caulerpa racemosa} from Coral Reef census, Lizard Island, Queensland, Australia, April 2008. To store the algae, specimens are pressed and dried out in a herbarium press, this s...

Juergen Freund / Sample of Green algae {Caulerpa racemosa} from Coral Reef census, Lizard Island, Queensland, Australia, April 2008. To store the algae, specimens are pressed and dried out in a herbarium press, this s...

Juergen Freund / Sample of Green algae {Halimeda sp} from Coral Reef census, Lizard Island, Queensland, Australia, April 2008. To store the algae, specimens are pressed and dried out in a herbarium press, this simple...

Juergen Freund / Sample of Green algae from Coral Reef census, Lizard Island, Queensland, Australia, April 2008. To store the algae, specimens are pressed and dried out in a herbarium press, this simple process preser...

Juergen Freund / Sample of Green algae from Coral Reef census, Lizard Island, Queensland, Australia, April 2008. To store the algae, specimens are pressed and dried out in a herbarium press, this simple process preser...

Juergen Freund / Sample of Green algae {Caulerpa crassifolia} from Coral Reef census, Lizard Island, Queensland, Australia, April 2008. To store the algae, specimens are pressed and dried out in a herbarium press, thi...

Juergen Freund / Sample of Brown algae from Coral Reef census, Lizard Island, Queensland, Australia, April 2008. To store the algae, specimens are pressed and dried out in a herbarium press, this simple process preser...

Juergen Freund / Sample of Green algae {Tydemania sp} from Coral Reef census, Lizard Island, Queensland, Australia, April 2008. To store the algae, specimens are pressed and dried out in a herbarium press, this simpl...

Juergen Freund / Sample of Green algae from Coral Reef census, Lizard Island, Queensland, Australia, April 2008. To store the algae, specimens are pressed and dried out in a herbarium press, this simple process preser...

Juergen Freund / Sample of Algae from Coral Reef census, Lizard Island, Queensland, Australia, April 2008. To store the algae, specimens are pressed and dried out in a herbarium press, this simple process preserves th...

Juergen Freund / Sample of Brown algae {Sarcassum cf myriosystum} from Coral Reef census, Lizard Island, Queensland, Australia, April 2008. To store the algae, specimens are pressed and dried out in a herbarium press,...

Juergen Freund / Sample of Brown algae {Sarcassum cf myriosystum} from Coral Reef census, Lizard Island, Queensland, Australia, April 2008. To store the algae, specimens are pressed and dried out in a herbarium press,...

Juergen Freund / Close up of Green algae {Chlorophyceae} specimen collected as part of the Coral Reef census, Lizard Island, Queensland, Australia, April 2008

Juergen Freund / Close up of Green algae {Chlorophyceae} specimen collected as part of the Coral Reef census, Lizard Island, Queensland, Australia, April 2008

Juergen Freund / Green algae {Chlorophyceae} specimen collected as part of the Coral Reef census, Lizard Island, Queensland, Australia, April 2008

Juergen Freund / Green algae {Chlorophyceae} specimen collected as part of the Coral Reef census, Lizard Island, Queensland, Australia, April 2008

Juergen Freund / John Huisman organizing his algae / seaweed specimens, as part of the Coral Reef census, Lizard Island, Queensland, Australia, April 2008

Juergen Freund / Lizard Island Research Station laboratory filled with pressed algae and seaweed specimens. Part of the Coral Reef census, Lizard Island, Queensland, Australia, April 2008

Juergen Freund / Close up of brown spots on Green algae {Chlorophyceae} collected as part of the Coral Reef census, Lizard Island, Queensland, Australia, April 2008

Juergen Freund / Green algae {Chlorophyceae} collected as part of the Coral Reef census, Lizard Island, Queensland, Australia, April 2008

Juergen Freund / Green algae {Chlorophyceae} collected as part of the Coral Reef census, Lizard Island, Queensland, Australia, April 2008

Juergen Freund / Brown algae {Phaeophyceae} collected as part of the Coral Reef census, Lizard Island, Queensland, Australia, April 2008

Juergen Freund / Brazilian, Fred Gurgel, collecting algae and seaweeds (macroalgae) for Coral Reef census, Lizard Island, Queensland, Australia, April 2008.

Juergen Freund / Diver watching Weedy seadragon (phyllopteryx taeniolatus) amongst seaweed, Albany, Western Australia

Jurgen Freund / Diver exploring the artificial reef created by the wreck of the HMAS Swan, Dunsborough, Western Australia

Juergen Freund / Diver exploring the artificial coral reef created by the wreck of the HMAS Swan, Dunsborough, Western Australia

Juergen Freund / New Zealand fur seal (Arctocephalus forsteri) swimming amongst kelp. Albany, Western Australia

Juergen Freund / Diver exploring the artificial reef created by the wreck of the HMAS Swan, Dunsborough, Western Australia

Juergen Freund / Diver watching Weedy seadragon (phyllopteryx taeniolatus) amongst seaweed, Albany, Western Australia

Juergen Freund / Garibaldi fish {Hypsypops rubicunda} in kelp forest, California, USA, pacific coast

Juergen Freund / Diver watching starfish in giant kelp forest, California, USA

Juergen Freund / Twisted trunks of Giant kelp {Macrocystis integrifolia} California, USA, Pacific Ocean

Juergen Freund / Seapalm kelp fixed on rocks underwater {Postelsia palmaeformis} Pacific Canada

Juergen Freund / Lion's mane jellyfish in kelp forest (Cyanea capillata) Pacific, Canada

Juergen Freund / Seaweed farming, Arenas Reef, Philippines

Juergen Freund / Diver in crystal clear lake with algae growing from bottom. Italy, Europe

Juergen Freund / Sargassum frogfish (anglerfish) hidden on seaweed {Histrio histrio} Sulu-sulawesi seas, Indo-pacific ocean

Juergen Freund / Family of seaweed growers. Arenas, Cagayancillo, Philippines. Seaweed used to produce carageen, a binding agent used extensively in cosmetic products. 2000

Juergen Freund / Seaweed drying. Arenas, Cagayancillo, Philippines. Seaweed used to produce carageen, a binding agent used extensively in cosmetic products. 2000

Juergen Freund / Hawksbill turtle hatchling {Eretmochelys imbricata} hiding in sargassum seaweed. Sulu-Sulawesi seas, Indo Pacific. Split level shot.

Juergen Freund / Overturned Starfish {Asteroidea} on its back feeding on algae. British Columbia