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* Been around since the dinosaurs, 175 million years ago * Old; Can live to be over 100 years old * Large; grows to over 6 m in length and up to 1800.

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Presentation on theme: "* Been around since the dinosaurs, 175 million years ago * Old; Can live to be over 100 years old * Large; grows to over 6 m in length and up to 1800."— Presentation transcript:

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2 * Been around since the dinosaurs, 175 million years ago * Old; Can live to be over 100 years old * Large; grows to over 6 m in length and up to 1800 lbs it is the largest fresh water fish in British Columbia. * Endangered, very few left, less than 400 adults * Genetically distinct; no other species are the same * Very slow to reproduce. Females start spawning between age 20 to 30, and every 5-10 years after maturity

3 Long snout with up to four barbels Rows of sharp bony “scutes” Special tail – similar to a shark Cartilage, no bony skeleton Flattened head Mouth protrudes

4 Flattened head

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6 Long snout with up to four barbels

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8 Mouth protrudes

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10 Cartilage, no bony skeleton

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12 Rows of sharp bony “scutes”

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14 Special tail – similar to a shark

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16 Stegosaurus; Jurassic period 138-205 mya Ichthyosaur; Triassic period 205-240 mya Liopieurodon ;Ichthyosaur 240 million years ago

17 * Sturgeon is 6m (20ft), and weighs up to 800kg (1800lb). * Male Moose are 3m (10ft), and weighs up to 600kg (1320lbs) * Hippopotamus is 3.3m (11ft long), and weighs up to 1500-3200kg (3,300-7000lbs)

18 * Population ageing, few young fish (juveniles) * Endangered as per the Species at Risk Act (SARA) * Now fully protected, it is against the law to have a sturgeon or any sturgeon parts (2007) * May become extinct within the next twenty years

19 * Human Impact * Habitat altered * Bottom structure altered * Kenny Dam 1950’s * Few young fish remain * Global climate

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28 * This year we caught 33 juvenile sturgeon. * 20 wild sturgeon * 4 wild recaptures * 9 hatchery released

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