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Day 10

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The eels and their relatives (Elopomorpha) have larval stages known as leptocephali (singular is leptocephalus). They can be leaf shaped (bottom of figure, top most whole body image) or they can be more elongate and eel like (bottom of figure, middle whole body image). The fishes that are related to true eels include the halosaurs and the ladyfishes (bottom of figure, bottom whole body image). Head shapes can be elongate and serpent-like or rounded (top images). We have been intensively surveying the leptocephali of the Gulf of Mexico during our cruises. I have about 50 species photographed so far.

b2ap3_thumbnail_eel-family.jpg

A full body shot of the Orangeback Flying Squid (Sthenoteuthis pteropus). This species can jump out of the water and glide, just like flying fishes.

b2ap3_thumbnail_full-body-shot-of-flying-squid.jpg

A deep water marine ostracod, (Gigantocypris sp.). Ostracods are related to crabs, shrimp, lobsters, etc. Both individuals are brooding eggs. The specialized eyes detect bioluminescence in the copepods that they hunt and eat.

b2ap3_thumbnail_marine-ostracod.jpg

 

Brought up some more Bobtail Squid (Heteroteuthis dagamensis) in a trawl. This is as big as they grow.

b2ap3_thumbnail_Juvenile-bobtail-squid.jpg b2ap3_thumbnail_bobtail-squid.jpg

 

 

 

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Danté Fenolio grew up in the fog-shrouded redwood forests of the Santa Cruz Mountains in California. Banana Slugs, Pacific Giant Salamanders and Red Legged Frogs were a regular part of his daily childhood experience. His father and grandfather were avid outdoorsmen, imparting a love of nature in Danté that remains today. Field work in the tropics began at an early age and evolved into summer months that were spent in the Amazon Basin performing herpetological surveys. Fenolio earned a combined undergraduate degree in Biology and Environmental Studies from the University of California Santa Cruz. He continued on and earned a Masters degree in Zoology from the University of Oklahoma, where he examined the population ecology of the Ozark Blind Cave Salamander. His concurrent involvement with the Subterranean Biodiversity Project gave him the opportunity to work in hundreds of caves across the Ozarks of Oklahoma, Arkansas, and Missouri. Danté then earned a Ph.D. in Biology from the University of Miami, Florida, involving amphibian conservation and taxonomy. After graduate school, Fenolio worked for the Atlanta Botanical Garden, helping to coordinate both local and international conservation efforts and developing captive breeding methods for critically endangered species. Perhaps the most significant project while with the Garden was the development of the Chilean Amphibian Conservation Center, in Santiago, Chile. The collaboration with the National Zoo of Chile works to develop captive assurance colonies of endangered Chilean amphibians and to monitor wild populations for emergent infectious disease – see www.savedarwinsfrogs.org . Danté now runs the Department of Conservation and Research for the San Antonio Zoo (San Antonio, Texas, USA) with active conservation work in the United States, Peru, Brazil, Chile, Costa Rica, China and Japan. Fenolio's research interests focus on the ecology of animals living in challenging environments such as subterranean ecosystems, deep water environments, and forest canopies.
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