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Atlantic Salmon

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by

Rachel Jasaitis

on 12 June 2013

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Transcript of Atlantic Salmon

By: Rachel Jasaitis
Pollution Tolerance & IBI
Characteristics
Adaptations
Young: macroinvertebrates
Elongate body
"Smoltification": ability to transition from freshwater to saltwater
Pacific salmon: difference that Atlantic have less than 13 rays in the anal fin
Diet
Atlantic Salmon:
Pollution sensitive
Interesting Facts
Females will lay about 7,500 eggs, but only 15-35% will survive.
Reproduction
Spawning from October to Novemer
Location
North Atlantic Ocean
Anadromous
Parr: shallow, riffled, freshwater streams with a fast current
Habitat
Relatives
Order Salmoniformes
Hooked lower jaw in males
color: sea, freshwater, spawning, post-spawn
Pre-grisle: plankton & amphipods
Adult: small fish and crustaceans, such as smelts, small mackerel, and cmall cod
Smolt-Grisle: open, northern saltwater seas
Kelt: return to freshwater to spawn and die
Threats
Andipose fin
From USA, Canada, and Eastern Europe freshwater to Greenland to feed and back to freshwater
Cold water
Females create "redd", or nest by generating water currents to dig a hole in the gravel-bottom riffle area
Eggs fertilized outside the body and incubate from 40 days (10-12°C) to 145 days (3°C)
"Chemotactic" senses allow smolts to return to their home stream.
Salmon and trout
Andipose fin, soft fin rays, pelvic fins with more than 6 rays, pectoral fin nearly horizontal, cycloid scales
Invasive
Works Cited
http://www.nmfs.noaa.gov/pr/species/fish/atlanticsalmon.htm
http://www.dfo-mpo.gc.ca/regions/central/pub/factsheets-feuilletsinfos-ogla-rglo/atlanticsalmon-saumonatlantique-eng.htm
http://ec.europa.eu/environment/life/project/Projects/index.cfm?fuseaction=home.showFile&rep=file&fil=SMURF_salmon.pdf
http://www.fda.gov/AdvisoryCommittees/CommitteesMeetingMaterials/VeterinaryMedicineAdvisoryCommittee/ucm222635.htm
http://animaldiversity.ummz.umich.edu/accounts/Salmo_salar/
http://www.bio.umass.edu/biology/conn.river/salmon.html
http://www.krisweb.com/krissheepscot/krisdb/html/krisweb/stream/temperature_sheepscot.htm
http://fishcreeksalmon.org/About-Atlantics.htm
http://www.wcba.info/bglst.htm
http://www.accessscience.com/abstract.aspx?id=599300&referURL=http%3a%2f%2fwww.accessscience.com%2fcontent.aspx%3fid%3d599300
http://www.aknextgeneration.org/education/curriculums/subsistence/fishing/invasive_salmon.pdf
Family Oncorhynchus: pacific salmon, trout, char
Kingdom: Animalia
Phylum: Chordata
Class: Osteichthyes
Order: Salmoniformes
Family: Salmonidae
Genus: Salmo
Species: salar
28-30 inches
8-12 (up to 30) pounds
Full transcript