２０１４海遊館"ペンギン"　Penguin

海遊館"ペンギン"２０１４

遊館にいるいろいろなペンギン達、ジェンツーペンギン・アデリーペンギン・キングペンギン・イワトビペンギンなどがおります。

ペンギン (英語: penguin) は、鳥類ペンギン目（学名 Sphenisciformes）に属する種の総称である。ペンギン科（学名 Spheniscidae）のみが現生する。

主に南半球に生息する海鳥であり、飛ぶことができない。

今では使われることは稀だが、「人鳥（じんちょう）」「企鵝（きが、企は爪先立つの意、鵝はガチョウ）」という和名もある。

（参照　ウィキペディア　ペンギン　http://ja.wikipedia.org/wiki/%E3%83%9A%E3%83%B3%E3%82%AE%E3%83%B3

http://midokoroblog.blog.fc2.com/blog-entry-97.html

Penguin

Penguins (order Sphenisciformes, family Spheniscidae) are a group of aquatic, flightless birds living almost exclusively in the Southern Hemisphere, especially in Antarctica. Highly adapted for life in the water, penguins have countershaded dark and white plumage, and their wings have evolved into flippers. Most penguins feed on krill, fish, squid and other forms of sealife caught while swimming underwater. They spend about half of their lives on land and half in the oceans.

Although all penguin species are native to the Southern Hemisphere, they are not found only in cold climates, such as Antarctica. In fact, only a few species of penguin live so far south. Several species are found in the temperate zone, and one species, the Galápagos penguin, lives near the equator.

The largest living species is the emperor penguin (Aptenodytes forsteri): on average adults are about 1.1 m (3 ft 7 in) tall and weigh 35 kg (77 lb) or more. The smallest penguin species is the little blue penguin (Eudyptula minor), also known as the fairy penguin, which stands around 40 cm (16 in) tall and weighs 1 kg (2.2 lb). Among extant penguins, larger penguins inhabit colder regions, while smaller penguins are generally found in temperate or even tropical climates (see also Bergmann's rule). Some prehistoric species attained enormous sizes, becoming as tall or as heavy as an adult human. These were not restricted to Antarctic regions; on the contrary, subantarctic regions harboured high diversity, and at least one giant penguin occurred in a region not quite 2,000 km south of the equator 35 mya, in a climate decidedly warmer than today.

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Arapaima　海遊館ピラルク（アロワナ）

海遊館ピラルク

海遊館より第三弾です。ピラルクー　日本国内では観賞魚としてショップなどで稀に幼魚が流通するが、そのサイズから一般家庭での飼育には適さない。稚魚の食欲は旺盛で、成長は早い。大きくなったら捨てるのはやめましょう

ピラルクー（学名：Arapaima gigas）は、アロワナ目アロワナ科ヘテロティス亜科に属する魚。現存するアラパイマ属唯一の種である。体長3m以上になり、世界最大の淡水魚の一つに数えられる。別名アラパイマ, パイチェ。伸ばさず単にピラルクとも呼ばれる。英語では、Arapaima もしくは Pirarucu と呼ばれる。

http://midokoroblog.blog.fc2.com/blog-entry-95.html

Arapaima

The arapaima, pirarucu, or paiche (genus Arapaima) is a genus of bonytongues native to the Amazon and Essequibo basins of South America. They are among the largest freshwater fish in the world, reaching lengths of as much as 4.5 m (15 ft).[1] They are important food fish and have declined in the native range due to overfishing and habitat loss. In contrast, arapaima have been introduced to several tropical regions outside the native range (within South America and elsewere) where they are sometimes considered invasive species.

Arapaima has traditionally been regarded as a monotypic genus, but following recent studies it has been established that there are several species.[2][4][5] As a consequence of this taxonomic confusion, most earlier studies have been done using the name A. gigas, but this species is only known from old museum specimens and the exact native range is unclear. The regularly seen and studied species is A. arapaima,[4][5][6] although a very small number of A. leptosoma also have been recorded in the aquarium trade.[7] The remaining species are virtually unknown: A. agassizii is only known from old detailed drawings (the type specimen itself was lost during World War II bombings) and A. mapae is only known from the type specimen. A. arapaima is relatively thickset compared to the remaining species.