Actinopterygii

By: Marcel Surette, Brittney Pothier, Richard LeBlanc, Gabrielle Boudreau

Introduction

• “Ray-Finned Fish”• 50% of all vertebrates• Most successful group of fish

• Ray-Finned Fish Class• 42 orders• 431 families• 25000 species

Characteristics

• Ray supported fins • Skeleton composed of bone (cartilage) • Swim bladder• Scales• Gill Cover

Lionfish

Habitat

• Lakes, Springs• Artic Oceans• Tropical Waters• Caves • Mudflats • Water Temperatures

Diet• Herbivores • Carnivores • Omnivores• Zooplanktivores small crustaceans • Detrivores decomposing organisms

• Opportunistic Eaters

Reproduction

• Lay eggs / retain eggs • Some protection to offspring

Lifespan

Seven-Figure Pygmy Goby

Rougheye Rockfish

Communication/Perception

• Lateral Lines (Mechanoreception) sensory organs

• Vision Many wavelengths

Fun Facts

• Swim bladder (homologous)• Fossil records 400 – 350 million

years ago• Tuna, Salmon, Bass, Seahorse, Cod• No muscle in fins • Symmetrical tail• Open swim bladder (breathing organ)

Mudskipper

LA FIN!!!

Sources• http://animaldiversity.ummz.umich.edu/accounts/Ac

tinopterygii/• https://menaultaxonomyproject.wikispaces.com/Ani

malia+-+Chordata+-+Actinopterygii• http://www.seawater.no/fauna/chordata/Actinopter

ygii.html

• http://www.oceanclassrooms.com/ms101_u9_c2_sf_2

• http://www.ucmp.berkeley.edu/vertebrates/actinopterygii/actinintro.html