聽說鯊魚沒有鰭,,,,,就代表隻鯊魚沒有用,,,會很快死~~
丁傑 發表於 2010-7-30 10:21 PM You are very right! Since shark is cartilaginous fish, it would suffocate if it is not mobile. The scale of shark hunting, if not remitted, would ultimately lead to its extinction. This kind of unchecked fishing hurts the shark population especially hard due to their reproduction method (internal fertilization requiring the mating of a female and a male). Many type of sharks are ovoviviparous, produce relatively fewer number of young as the mother carrying the developing eggs in their body. The young also need longer time to reach maturity. All these factors portray a very grim picture of the shark's future. We have no thorough understanding of its role in the food chain yet and God bless the shark! |