333 pictures found
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Tara Oceans Expeditions - May 2011. Marine Iguanas (Amblyrhynchus cristatus), seeking shelter on from an incoming spring tide, Isabela Island,
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Marine Iguanas (Amblyrhynchus cristatus), seeking shelter on from an incoming spring tide, Isabela Island, Galapagos, Ecuador
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Tara Oceans Expeditions - May 2011. Marine Iguana (Amblyrhynchus cristatus) on lava rock, Isabela Island, Galapagos, Ecuador
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Marine Iguana (Amblyrhynchus cristatus) on lava rock, Isabela Island, Galapagos, Ecuador
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Tara Oceans Expeditions - May 2011. Marine Iguana (Amblyrhynchus cristatus) coming ashore after a swim of several hundred meters distance; Isabela
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Marine Iguana (Amblyrhynchus cristatus) coming ashore after a swim of several hundred meters distance; Isabela Island; Galapagos, Ecuador; The Marine Iguana appears slow and clumsy on land, but this particular species of lizard is the only sea-going lizard in the world. However, it has to return the the land to breed. Galapagos
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Tara Oceans Expeditions - May 2011. diving Marine Iguana (Amblyrhynchus cristatus); Isabela Island; Galapagos, Ecuador; The Marine Iguana appears
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. diving Marine Iguana (Amblyrhynchus cristatus); Isabela Island; Galapagos, Ecuador; The Marine Iguana appears slow and clumsy on land, but this particular species of lizard is the only sea-going lizard in the world. However, it has to return the the land to breed.
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Tara Oceans Expeditions - May 2011. Pelican; Isabela Island; Galapagos, Ecuador; The Brown Pelican is found throughout the Galapagos Islands,
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Pelican; Isabela Island; Galapagos, Ecuador; The Brown Pelican is found throughout the Galapagos Islands, skimming over water, plunge-diving and resting in mangrove trees. Brown Pelicans measure around 41 inches in length and have a wingspan of 90 inches. The Galapagos population of the Brown Pelican is said to be an endemic (unique) subspecies of the Pelican Bird.
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Tara Oceans Expeditions - May 2011. Incoming Tide near Isabela Island, Galapagos, Ecuador
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Incoming Tide near Isabela Island, Galapagos, Ecuador
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Tara Oceans Expeditions - May 2011. Schooling Yellowtail Surgeonfish (Prionurus laticlavius), Albany Islet, Galapagos, Ecuador
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Schooling Yellowtail Surgeonfish (Prionurus laticlavius), Albany Islet, Galapagos, Ecuador
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Tara Oceans Expeditions - May 2011. shooling Black-striped salema, Xenocys jessiae, endemic to the Galapagos Islands; rocky landscape covered with
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. shooling Black-striped salema, Xenocys jessiae, endemic to the Galapagos Islands; rocky landscape covered with barnacles; Isabela Island (Cape Marshall), Galapagos, Ecuador;
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Tara Oceans Expeditions - May 2011. shooling Black-striped salema, Xenocys jessiae; Isabela Island (Cape Marshall), Galapagos, Ecuador
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. shooling Black-striped salema, Xenocys jessiae; Isabela Island (Cape Marshall), Galapagos, Ecuador
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Tara Oceans Expeditions - May 2011. Panoramic view of rocky uw-landscape with Gorgonian corals (Pacifigora, seafan or gorgonian octocoral) , off Punta Vicente Roca, Isabela, Galapagos; EcuadorPunta Vicente Roca,
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Panoramic view of rocky uw-landscape with Gorgonian corals (Pacifigora, seafan or gorgonian octocoral) , off Punta Vicente Roca, Isabela, Galapagos; EcuadorPunta Vicente Roca, Isabela, Galapagos; Ecuador. Stitched image
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Tara Oceans Expeditions - May 2011. Galapagos Black Coral (Antipathes galapagensis, center bottom) and Gorgonian corals (Pacifigora, seafan or
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Galapagos Black Coral (Antipathes galapagensis, center bottom) and Gorgonian corals (Pacifigora, seafan or gorgonian octocoral) , off Punta Vicente Roca, Isabela, Galapagos; Ecuador
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Tara Oceans Expeditions - May 2011. The ocean sunfish, Mola mola, or common mola, is the heaviest known bony fish in the world. It has an average
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. The ocean sunfish, Mola mola, or common mola, is the heaviest known bony fish in the world. It has an average adult weight of 1,000 kg (2,200 lb). The species is native to tropical and temperate waters around the globe. It resembles a fish head with a tail, and its main body is flattened laterally. Sunfish can be as tall as they are long when their dorsal and ventral fins are extended. Sunfish live on a diet that consists mainly of jellyfish, but because this diet is nutritionally poor, they consume large amounts in order to develop and maintain their great bulk. Females of the species can produce more eggs than any other known vertebrate.[1] Sunfish fry resemble miniature pufferfish, with large pectoral fins, a tail fin and body spines uncharacteristic of adult sunfish. Adult sunfish are vulnerable to few natural predators, but sea lions, orcas and sharks will consume them. Among humans, sunfish are considered a delicacy in some parts of the world, including Japan, the Korean peninsula and Taiwan. In the EU, regulations ban the sale of fish and fishery products derived of the Molidae family. Sunfish are frequently, though accidentally, caught in gillnets, and are also vulnerable to harm or death from encounters with floating trash, such as plastic bags. A member of the order Tetraodontiformes, which also includes pufferfish, porcupinefish and filefish, the sunfish shares many traits common to members of this order. It was originally classified as Tetraodon mola under the pufferfish genus, but it has since been given its own genus, Mola, with two species under it. The ocean sunfish, Mola mola, is the type species of the genus. Punta Vicente Roca, Isabela, Galapagos; Ecuador
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Tara Oceans Expeditions - May 2011. Galápagos sea lion (Zalophus wollebaeki), Roca Redonda, Galapagos, Ecuador
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Galápagos sea lion (Zalophus wollebaeki), Roca Redonda, Galapagos, Ecuador
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Tara Oceans Expeditions - May 2011. Starfish (sea star) on barnacles; Roca Redonda, Galapagos; Ecuador
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Starfish (sea star) on barnacles; Roca Redonda, Galapagos; Ecuador
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Tara Oceans Expeditions - May 2011. 3 Starfish (sea star) on barnacles; Roca Redonda, Galapagos; Ecuador
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. 3 Starfish (sea star) on barnacles; Roca Redonda, Galapagos; Ecuador
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Tara Oceans Expeditions - May 2011. Bubbles rise from underwater volcanic vents among rocks, the openings are crusted with sulfur, Roca Redonda,
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Bubbles rise from underwater volcanic vents among rocks, the openings are crusted with sulfur, Roca Redonda, Galapagos, Ecuador
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Tara Oceans Expeditions - May 2011. Panoramic view of the typical and sole official dive spot off Darwin Arch, called "theatre", Darwin Island, Galapagos, Ecuador. Stitched image
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Panoramic view of the typical and sole official dive spot off Darwin Arch, called "theatre", Darwin Island, Galapagos, Ecuador. Stitched image
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Tara Oceans Expeditions - May 2011. Galapagos Garden Eels (Heteroconger cobra), depth -30m, off Darwin Island, Galapagos, Ecuador
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Galapagos Garden Eels (Heteroconger cobra), depth -30m, off Darwin Island, Galapagos, Ecuador
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Tara Oceans Expeditions - May 2011. Starfish (Asteroidae) and Galapagos Garden Eels (Heteroconger cobra), depth -30m, off Darwin Island, Galapagos, Ecuador
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Starfish (Asteroidae) and Galapagos Garden Eels (Heteroconger cobra), depth -30m, off Darwin Island, Galapagos, Ecuador
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Tara Oceans Expeditions - May 2011. Shooling Pacific creolefish (Paranthias colonus), Wolf Island, Darwin Island, Galapagos, Ecuador
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Shooling Pacific creolefish (Paranthias colonus), Wolf Island, Darwin Island, Galapagos, Ecuador
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Tara Oceans Expeditions - May 2011. Darwin Arch; Darwin Island (Culpepper); Galapagos; Ecuador; Darwin Island is named in honour of Charles Darwin. Darwin Island is just several miles further North from Wolf Island. At only one square kilometre, it is the 18th largest island in the Galapagos Archipelago (making one of the smallest). With no dry landing sites, Darwin
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Darwin Arch; Darwin Island (Culpepper); Galapagos; Ecuador; Darwin Island is named in honour of Charles Darwin. Darwin Island is just several miles further North from Wolf Island. At only one square kilometre, it is the 18th largest island in the Galapagos Archipelago (making one of the smallest). With no dry landing sites, Darwin Islands main attractions are not found above the surface, but rather in the depths of the Pacific, which is teeming with a spectacular variety of marine life. Stitched image
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Tara Oceans Expeditions - May 2011. Scalloped hammerhead shark (Sphyrna lewini), Wolf Island, Galapagos
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Scalloped hammerhead shark (Sphyrna lewini), Wolf Island, Galapagos
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Tara Oceans Expeditions - May 2011. Pacific creolefish (Paranthias colonus) and schooling Pelican barracudas (Sphyraena idiastes), background, Wolf Island, Galapagos, Ecuador
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Pacific creolefish (Paranthias colonus) and schooling Pelican barracudas (Sphyraena idiastes), background, Wolf Island, Galapagos, Ecuador
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Tara Oceans Expeditions - May 2011. schooling Pelican barracudas,
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. schooling Pelican barracudas, (Sphyraena idiastes); Wolf Island; Galapagos; Ecuador
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Tara Oceans Expeditions - May 2011. The Bottlenose (or Bottle
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. The Bottlenose (or Bottle Nosed) dolphin (Tursiops truncatus) in the Galapagos cooler pelagic waters tend to be larger than their cousins who inhabit warmer, shallower waters. Those in colder waters have a fattier composition more suited to deep-diving. Adults range in length from 2 to 4 metres (6 to 13 feet) and weigh from 150 to 650 kilograms (330 to 1430 pounds). Males are longer and heavier than females. The lifespan of the female Bottlenose Dolphin is about 40 years, whereas males rarely live more than 30 years.Wolf Island; Galapagos; Ecuador
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Tara Oceans Expeditions - May 2011. Punta Estrada; Puerto Isidro Ayora, Santa Cruz Island; Galapagos; Ecuador. Stitched image
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Punta Estrada; Puerto Isidro Ayora, Santa Cruz Island; Galapagos; Ecuador. Stitched image
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Tara Oceans Expeditions - May 2011. Punta Estrada - shark channel; Puerto Isidro Ayora, Santa Cruz Island; Galapagos; Ecuador
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Punta Estrada - shark channel; Puerto Isidro Ayora, Santa Cruz Island; Galapagos; Ecuador
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Tara Oceans Expeditions - May 2011. Venus Girdle, Cestid ctenophore, Galapagos
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Venus Girdle, Cestid ctenophore, Galapagos
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Venus Girdle, Cestid ctenophore, Galapagos
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Tara Oceans Expeditions - May 2011. Salp aggregation containing small shrimps (symbiosis?). A salp (plural salps) or salpa (plural salpae or salpas)
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Salp aggregation containing small shrimps (symbiosis?). A salp (plural salps) or salpa (plural salpae or salpas) is a barrel-shaped, planktonic tunicate. It moves by contracting, thus pumping water through its gelatinous body. The salp strains the pumped water through its internal feeding filters, feeding on phytoplankton. Salps are common in equatorial, temperate, and cold seas, where they can be seen at the surface, singly or in long, stringy colonies. The most abundant concentrations of salps are in the Southern Ocean (near Antarctica). Here they sometimes form enormous swarms, often in deep water, and are sometimes even more abundant than krill. Over the last century, while krill populations in the Southern Ocean have declined, salp populations appear to be increasing. The chain of salps is the aggregate portion of the life cycle. The aggregate individuals are also known as blastozooids; they remain attached together while swimming and feeding, and each individual grows in size. Each blastozooid in the chain reproduces sexually (the blastozooids are sequential hermaphrodites, first maturing as females, and are fertilized by male gametes produced by older chains), with a growing embryo oozoid attached to the body wall of the parent. The growing oozoids are eventually released from the parent blastozooids, then they continue to feed and grow as the solitary asexual phase, thus closing the life cycle of salps.
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Tara Oceans Expeditions - May 2011. Plankton (species undetermined), Galapagos
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Plankton (species undetermined), Galapagos
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Plankton (species undetermined), Galapagos
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Tara Oceans Expeditions - May 2011. Plankton (species undetermined), Galapagos
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Plankton (species undetermined), Galapagos
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Tara Oceans Expeditions - May 2011. Nude Ctenophore, Galapagos
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Nude Ctenophore, Galapagos
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Tara Oceans Expeditions - May 2011. Nude Ctenophore, Galapagos
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Nude Ctenophore, Galapagos
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Tara Oceans Expeditions - May 2011. Venus Girdle, Cestid ctenophore, Galapagos
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Venus Girdle, Cestid ctenophore, Galapagos
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Cestid ctenophore and plancton particles; the diver is Daniel Cron, first mate and chief engineer of Tara, Galapagos
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Tara Oceans Expeditions - May 2011. Cestid ctenophores. Assembly of 4 images (M). Galapagos
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Cestid ctenophores. Assembly of 4 images (M). Galapagos
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Tara Oceans Expeditions - May 2011. Daniel Cron, first mate and chief engineer of Tara, sampling plancton for o/b scientists, Galapagos
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Daniel Cron, first mate and chief engineer of Tara, sampling plancton for o/b scientists, Galapagos
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Tara Oceans Expeditions - May 2011. Daniel Cron, first mate and chief engineer of Tara with Nude Ctenophore, Galapagos
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Daniel Cron, first mate and chief engineer of Tara with Nude Ctenophore, Galapagos
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Venus Girdle, Cestid ctenophore, Galapagos
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Tara Oceans Expeditions - May 2011. Chaetognaths and copepods. Living plancton, photographed on board Tara; Photo (M): Christoph
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Chaetognaths and copepods. Living plancton, photographed on board Tara; Photo (M): Christoph Gerigk/CNRS/Taraexpeditions
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Tara Oceans Expeditions - May 2011. Gaby Gorsky, Tara Oceans Scientific Coordinator (standing) and Christian Sardet, Tara multimedia platform
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Gaby Gorsky, Tara Oceans Scientific Coordinator (standing) and Christian Sardet, Tara multimedia platform coordinator
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Tara Oceans Expeditions - May 2011. dry lab o/b Tara: FlowCAM can distinguish and sort individuals and on the basis of their size and their aspect :
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. dry lab o/b Tara: FlowCAM can distinguish and sort individuals and on the basis of their size and their aspect : large or small, more round or more elongated. In 200 ml of water there can be 1 to 10 thousands cells. The FlowCAM’s main attribute is a laser used to detect two pigments: chlorophyll and phycoerythrin which are present in red algae and some cyanobacteria. When an organism containing those pigments crosses the laser beam, it triggers a flash and the machine instantaneously takes a picture. Galapagos
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Tara Oceans Expeditions - May 2011. dry lab o/b Tara: Christian Sardet, CNRS biologist, and Sophie Marinesque, optical engineer, observing plancton,
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. dry lab o/b Tara: Christian Sardet, CNRS biologist, and Sophie Marinesque, optical engineer, observing plancton, Galapagos
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Tara Oceans Expeditions - May 2011. Christian Sardet, CNRS biologist, selecting plancton for microscopy o/b Tara.
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Christian Sardet, CNRS biologist, selecting plancton for microscopy o/b Tara.
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Tara Oceans Expeditions - May 2011. Plancton catch, Galapagos
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Plancton catch, Galapagos
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Tara Oceans Expeditions - May 2011. Christian Sardet, CNRS biologist, admiring a plancton catch, Galapagos
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Christian Sardet, CNRS biologist, admiring a plancton catch, Galapagos
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Tara Oceans Expeditions - May 2011. l: Sophie Marinesque; r: Dr. Stéphane PESANT, specialist for plancton ecology, scientific coordinator on TARA; l:
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. l: Sophie Marinesque; r: Dr. Stéphane PESANT, specialist for plancton ecology, scientific coordinator on TARA; l: r: Dr. Stéphane PESANT, spécialiste de l'écologie du plancton, coordinateur scientifique sur TARA. Pyrosomes, or pyrosoma, are free-floating colonial tunicates that live usually in the upper layers of the open ocean in warm seas, although some may be found to great depth. Pyrosomes are cylindrical or conical shaped colonies made up of hundreds to thousands of individuals, known as zooids. Colonies range in size from less than one centimeter to several meters in length. Each zooid is only a few millimeters in size, but is embedded in a common gelatinous tunic that joins all of the individuals. Each zooid opens both to the inside and outside of the "tube", drawing in ocean water from the outside to its internal filtering mesh called the branchial basket, extracting the microscopic plant cells on which it feeds, and then expelling the filtered water to the inside of the cylinder of the colony. The colony is bumpy on the outside, each bump representing a single zooid, but nearly smooth, though perforated with holes for each zooid, on the inside. Pyrosomes are planktonic, which means that their movements are largely controlled by currents, tides and waves in the oceans. On a smaller scale, however, each colony can move itself slowly by the process of jet propulsion, created by the coordinated beating of cilia in the branchial baskets of all the zooids, which also create feeding currents. Pyrosomes are brightly bioluminescent, flashing a pale blue-green light that can be seen for many tens of meters. The name Pyrosoma comes from the Greek (pyro = "fire", soma = "body"). Pyrosomes are closely related to salps, and are sometimes called "fire salps." Sailors on the ocean are occasionally treated to calm seas containing many pyrosomes, all bioluminescencing on a dark night. Galapagos
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Tara Oceans Expeditions - May 2011. Silvia Gonzalez-Acinas, ICM-CSIC, ES; freshly filtered plancton is wrapped o/b Tara to be stored and cooled in
© Christoph Gerigk / Biosphoto
© Christoph Gerigk / Biosphoto
Tara Oceans Expeditions - May 2011. Silvia Gonzalez-Acinas, ICM-CSIC, ES; freshly filtered plancton is wrapped o/b Tara to be stored and cooled in liquid nitrogen for later analysis, Galapagos