Directory of Cartilaginous Resources

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Class Chondrichthyes includes chimaeras, sharks and rays. The skeletons of these fish are composed of cartilage and do not contain true bone although the notochord is calcified to form bone-like vertebrae. They are also distinguished from the bony fish in lacking a swim bladder and bony operculum protecting the gills. The scales do not overlap and the tail is typically asymmetric, having a larger upper lobe.

Subcategories

• Carcharhiniformes
• Heterodontiformes
• Hexanchiformes
• Holocephali
• Lamniformes
• Lepisosteiformes
• Orectolobiformes
• Pristiformes
• Rajiformes
• Squaliformes
• Squatiniformes
• Torpediniformes

Resources in This Category

• Alessandro De Maddalena: Shark Specialist

  http://www.alessandrodemaddalena.net/
  Personal page with details of his research on sharks, his work as a marine wildlife illustrator, collaborations and publications.

• American Elasmobranch Society

  http://elasmo.org/
  An organization devoted to the study and conservation of sharks, rays, skates and chimeras.

• Cartilaginous Fishes: Class Chondrichthyes

  http://www.gma.org/fogm/Chondrichthyes.htm
  The most distinctive feature of this class is that their entire skeleton, including the skull, is cartilaginous without any true bone. The class include the sharks and rays, many of which are described here.

• Chondrichthyes

  http://en.wikipedia.org/wiki/Chondrichthyes
  Wikipedia article on this class of cartilaginous fish, their anatomy, biology and taxonomy.

• Chondrichthyes

  http://www.ucmp.berkeley.edu/vertebrates/basalfish/chondrofr.html
  Provides information on the fossil record of sharks and their kin, their life history, ecology, systematics and morphology.

• Class Chondrichthyes

  http://animaldiversity.org/accounts/Chondrichthyes/classification/
  Taxonomic information on cartilaginous fishes: sharks, rays and chimaeras.

• Dedicated Shark Site

  http://www.angelfire.com/hi2/haaitje/
  Provides detailed information on many shark species and general information about sharks.

• GoldenStateImages - Sharks of the California Coast

  http://www.goldenstateimages.com/shark.htm
  Photography of sharks found off the California coast includes blue shark, and mako shark.

• Infoplease - Sharks!

  http://www.infoplease.com/spot/sharks1.html
  Myths, facts, and statistics, how to avoid a shark attack, and the shark hall of fame.

• Introduction to the Chondrichthyes

  http://www.ucmp.berkeley.edu/vertebrates/basalfish/chondrintro.html
  UCMP Berkeley's introduction to the cartilaginous fish, including sharks.

• IUCN SSC Shark Specialist Group

  http://www.iucnssg.org/
  Works to achieve science-based management of sharks, rays and chimaeras. Provides conservation status and details of their conservative strategies.

• MOTE: Shark Biology & Conservation

  https://mote.org/research/program/shark-biology-conservation
  An independent marine research institution. Provides information on their current projects.

• ReefQuest

  http://www.elasmo-research.org/site_map.htm
  A comprehensive source of information on the biology of sharks and rays including behavioral studies.

• Shark

  http://en.wikipedia.org/wiki/Shark
  Wikipedia provides a great deal of information about sharks, their biology and classification, accompanied by photographs and diagrams.

• Shark Foundation

  http://www.shark.ch/
  Facts, images, and information on projects and activities organized by the foundation. In English and German.

• Shark Photographs

  http://www.oceanlight.com/html/sharks.html
  Underwater photographs and information about many species of sharks and rays.

• Shark Research Committee

  http://www.sharkresearchcommittee.com/
  Research of North America's Pacific Coast sharks, including White Shark (Carcharodon carcharias) diet, distribution, behavior, encounters, and attacks.

• Shark Research Program at the University of Florida Museum of Natural History

  http://www.flmnh.ufl.edu/fish/Sharks/Sharks.htm
  Attack statistics, breaking news about sharks, information about Great white and Megamouth sharks, shark attack file, and a commercial shark fishery observer program.

• Shark-L

  http://raven.utc.edu/archives/shark-l.html
  Archives of the e-mail group for discussion of sharks and cartilaginous fish.

• Sharks Gallery

  http://seashadows.narod.ru/
  Photos of sharks with no text.

• Swell Shark: Cephaloscyllium ventriosum

  http://www.coldwaterimages.com/swell_shark.html
  Photograph of an embryo of this species developing inside its “mermaid purse” egg case.

• Torpedoes, Skates and Rays: Order Batoidei

  http://www.gma.org/fogm/Batoidei.htm
  Characteristics of these fish in the subclass Elasmobranchii, which includes the Torpedoes, Skates, Sting Rays and Devil Rays.

Related Categories

• Home > Recreation > Outdoors > Wildlife > Sharks
• Home > Science > Environment > Biodiversity > Conservation > Fish > Sharks

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