Endangered animals under water

Base on many reasons, population of some species may decreasing in recent years. Below species except Green Tree Monitor, are listed as endangered species according to IUCN Red List. The same features of below species are they living in land or under water.

Green Tree Monitor (翡翠巨蜥) ; Sea Otter (海獺)
United Nations (Geneva) (2000)
2nd March, 2008. Geneva (Switzerland)

Sea Otter widely lives in seashore of Pacific Ocean, from the north of Japan to California, subspecies are California Sea Otter (加州海獺) and Alaskan Sea Otter (阿拉斯加海獺) separately. From 18th century to the first ten years of 20th century, population of Sea Otter were decreased over 75%. Afterward the population increased back after prohibit hunting but they decrease again. Until 2000, only 1,700 Sea Otters still alive.

Mediterranean Monk Seal (地中海僧海豹) ; Loggerhead Sea Turtle (赤蠵龜)
Madeira (2007)
15th July, 2008. Loures Shopping, Odivelas (Portugal)

Mediterranean Monk Seal mainly lives in Mediterranean, Black Sea and eastern area of Atlantic Ocean, only 350 to 400 seals still live in these water area. Since 15th century, illegal hunting were killed many monk seals, include Hawaiian Monk Seal (夏威夷僧海豹) and Caribbean Monk Seal (加勒比僧海豹). Unfortunately Caribbean Monk Seal have been declared extinct on 50's year of last century and Hawaiian Monk Seal remains not over 1,200.

Same as Mediterranean Monk Seal, Loggerhead Sea Turtle also facing extinct problem, it also lives in Mediterranean. As the inhabit area over developed by human, turtles do not have enough suitable beaches to bleed their eggs, or eggs be stolen by people. Moreover illegal fishing or not suitable fishing nets cause the population decreasing.