Ancient Fish Caught -

dexa

Sun Jul 15, 12:40 PM ET
ZANZIBAR (Reuters) - Fishermen in Zanzibar have caught a coelacanth, an ancient fish once thought to have become extinct when it disappeared from fossil records 80 million years ago, an official said on Sunday.




Researcher Nariman Jidawi of Zanzibar's Institute of Marine Science said the fish was caught off the tropical island's northern tip.

"The fishermen informed us they had caught this strange fish and we quickly rushed to find it was a coelacanth," he told Reuters, adding that it weighed 27 kg (60 lb) and was 1.34 meters long.

The coelacanth, known from fossil records dating back more than 360 million years, was believed to have become extinct some 80 million years ago until one was caught off the eastern coast of South Africa in 1938 -- a major zoological find.

None has since been caught in South African waters, but around 30 have been caught in recent years off Tanzania, possibly because diminishing shallow-water resources have forced fishermen to cast their nets in the deeper waters where coelacanths live, experts say.

Coelacanths are the only living animals to have a fully functional intercranial joint, a division separating the ear and brain from the nasal organs and eye.

alphawolf

Ni pun spesis terancam ni sebab tak banyak...

ijad_adiputera

nk tanya, ikan tu dh mati ke blum?
apsal ikan tu nampak pelik sgt? ikan tu mcm ada tgn.. besar plak tu...
agaknya ikan zaman purba mmg besar mcm tu kot... aiyohhh

sayangidaku

hmm...bukan spesis terancam lagik. mmg dah dianggap pupus pun kan...lebih 80 juta thn dulu. rupanya wujud lagik. kire living fossil la tu. pandai derang sembunyik selama ni.
tp takkan ikan tu tak berevolusi mcm hidupan lain, bila dah wujud berjuta2 thn dlu smpai skang.

alphawolf

Errr sehingga 1938 memang dianggap pupus. Tapi dah dijumpai semula oleh saintis Barat tahun tu -dan jadi bahan berita besar le masa baru-baru dijumpai . Penduduk Camoros sendiri heran kenapa kecoh sangat sedangkan bagi mereka ikan tu dah selalu jugak tertangkap sebelum itu dan tak boleh dikomersilkan sebab tak sedap.

Habitat dia sekarang ni hanya di pantai timur Afrika dan di Indonesia...jumlahnya pun tak banyak...tu yang saya kata spesis terancam.

Ikan tu tak berevolusi...alaa sama la macam buaya dan jerung...hampir tak berubah walau dah berjuta tahun.

sayangidaku

oh, ok..

kecubung

napa aku nampak x

Acong

nie tgh berenang lagik......

Gunner

Ikan nie tahan lasak betul..dah berjuta-juta tahun pon maseh dapat bertahan dan mungkin telah banyak kali berevolusi dari dahulu sampai sekarang.

narvmarishka

Originally posted by Acong at 17-7-2007 11:43 PM
http://www.kudalaut.com/biology/coelarn.JPG

nie tgh berenang lagik......

cam ikan kerapu lak kita tgk...

dexa

Originally posted by ijad_adiputera at 17-7-2007 07:05 PM
nk tanya, ikan tu dh mati ke blum?
apsal ikan tu nampak pelik sgt? ikan tu mcm ada tgn.. besar plak tu...
agaknya ikan zaman purba mmg besar mcm tu kot... aiyohhh

it was thought as extinct before
tapi bila dah ada species dia yang dijumpai
so kiranya now  endangered species --

memang ikan yang zaman lama / ancient
a great discovery i think

kecubung

ha, dah nampak pon..

ni nak tambah sikit..

Fact file

Name: Coelacanth (see-lah-kanth)
Status: Once thought to be extinct

Habitat: Deep water caves around islands off the coasts of Africa and Indonesia.

Description: The coelacanth is a bony fish with a lobed tail and lobed fins that gives birth to live young. It is usually a bright blue, but this colour is lost when the fish is caught. You can see a model of the coelacanth on display in the Museum.

What is the story of the coelacanth?
For a very long time people thought that the coelacanth was extinct because many coelacanth fossils were found, but no live fish. The fossils showed that the coelacanth had been around over 400 million years ago - long before the dinosaurs had evolved. However, in 1938 a live coelacanth was caught off the south-east coast of Africa! Since then it has been caught regularly around the Comoros Islands near Africa, and has also been found in Indonesia.
The coelacanth is a shy fish that lives in deep water and is not usually disturbed by regular fishing. But now, as people catch the coelacanth more frequently, there is a concern that it may be endangered. It would be a shame to lose something we have only just re-discovered.

kecubung

The coelacanth
This is a photograph of the coelacanth model on display in the Museum. The model is quite accurate, the coelacanth is bright blue in real life.
When the coelacanth was first rediscovered, scientists were amazed - they had thought it had been extinct for millions of years. Rewards were given for more fish to be caught, and many museums wanted a specimen of their own. Scientists began to worry that the coelacanth was being overfished - they didn't want to lose the fish they had just found.
Now models of the coelacanth are being displayed in the museums. They may not be the real thing, but they do not endanger any more fish, and they give you a better idea of what it looks like - real specimens begin to fade and can decay after a while.


This is a photograph of the coelacanth model on display in the Museum. Very few people have seen a living coelacanth, but it has been described as a very beautiful fish - about a metre long and bright blue in colour.
All coelacanths have a lobed tail and stout, lobed fins. It was these fins that made people think that the coelacanth could be similar to the fish that first crawled on to land millions of years ago. Scientists now think that this is not the case, but the coelacanth is still known as 'old four legs'!

[ Last edited by  kecubung at 19-7-2007 09:26 AM ]

kecubung

The coelacanth was first caught around the Comoros Islands off the coast of Africa. The Comoros is a group of three small islands and its capital is the city of Moroni. The coelacanth is an important symbol of the Comoros, and is featured on the country's stamps and coins.
Coelacanths are still found in the Comoros and have also been found in Indonesia, hundreds of miles away, on the other side of the Indian Ocean. These coelacanths are a browny colour, different to the blue fish found in the Comoros.

kecubung

Coelacanths have been around for millions of years and they haven't really changed much. This is a photograph of the tail section of a fossil coelacanth on display in the Museum. It was found at a famous site called Solnhofen in Germany and is about 150 million years old.
All coelacanths have lobed fins and a lobed tail.

[X]

bagus lah spesies ni tak pupus agi. sekurang-kurangnya, kita leh kaji camne ikan ni leh survive

ijad_adiputera

Ikan tu boleh dimakan tak?
Aku rasa kalau buat stimbot cukup utk 20 orang tuh...
rasanya lebih kot...

naden

ada perbezaan sikit antara coelacanth kat afrika & indonesia
coelacanth kat afrika - badannya warna biru.. yg kat indonesia - warna coklat

ni gambar coelacanth yg ditangkap kat indonesia pada 19 may 2007 :




ada lg fakta pasal penemuan/penangkapan coelacanth ni..
yg paling besar pernah didaratkan ialah pada tahun 1960
di Comoros, berukuran 180cm & 95kg..


(gambar dari Maputo Museum)

lagi.. ada saintis yg pernah wat kajian pasal coelacanth ni
& kebanyakan daripada derang tertarik dgn cara ikan2 ni berenang/bergerak
sbb coelacanth ni ada byk sirip kan.. ni antara animasi yg dihasilkan
setelah kajian tu dibuat :



menarik huh? sesapa yg berminat nak tengok view dari depan, leh klik >> SINI

fariepari

wahh..bagus la ek..at least, dpt gak kite tau ada gak hidupan kuno yg masih terselamat..mintak2 la diaorg ni x bunuh ikan yg diaorg jumpe tu..

akukamudandia

mcm sedap.. huehue