Sunday, December 8, 2013

Sawfish

A sawfish is an endangered fish that is related to sharks and rays. In America, these fishes argon critically endangered which means it is or so abutting to extinction. right away they live mostly in the water off the souwest Florida. in that location ar 7 diametric types of sawfish: genus Pristis genus Pristis (common sawfish), Pristis perotteti (largetooth sawfish), Pristis microdon (freshwater sawfish), Pristis pectinata (smalltooth sawfish), Pristis clavata (dwarf sawfish), Pristis zijsron (green sawfish), and at long last Anoxypristis cuspidata (narrow or knifetooth sawfish). in all of them are on the IUCN (International Union for conservation of Nature) red list. There are 3 main problems: overfishing, home ground loss, and their scurvy procreative ability. First problem is overfishing. Sawfish are instead lento to catch because it can be caught in almost any types of nets. Commercial and recreational fishers caught lots of them because they wanted their saw. At first gear in the Atlantic Ocean near Florida on that call for were tons of smalltooth sawfish, but the fishers caught them too much. One fisher caught cardinal sawfish a season. Now in America, they are depleted. They are so rare that now, the protection teams even ask to report their sightings. They are critically endangered, which means chance of extinction.
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Second problem is their habitat loss. Shallow water is good for the juveniles to survive. But people puddle lots of coastal development (dredging, mangrove removal, seawall construction, adaption of freshwater flow) and they had fewer places to li ve. That caused them to die. Third problem ! is their low generative ability. Like sharks, they breed real slow and produce real few babies. Because of overfishing and habitat loss it will take ripen to reproduce all that amount of sawfish that were killed. I think that sawfish should be forced to create protected. Sawfish is used for medicine in china, and if sawfish call on extinct, there would be bad consequencesIf you want to get a full essay, order it on our website: OrderCustomPaper.com

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