水域
TeamSpeak
Server offline


返回   水域 > 精華區 > 魚類
使用者名稱
密碼


 
 
主題工具 搜尋本主題 顯示模式
舊 2002-03-20, 01:55 PM   #1
calvin
超級版主
 
註冊日期: Mar 2002
您的住址: 西貢內海
文章: 1,143
發 ICQ 消息給 calvin
鯊魚蛋

發表作者: 魚先生
發表內容: 剛剛買了隻鯊魚蛋,應該點照顧呢?牠已有三吋長了,會點樣走出來呢,真係好有興趣知道?

發表作者: brendan
發表內容: where did u buy?

發表作者: key
發表內容: hi 魚先生,
你要等到條鯊魚既營養袋(圓形有條管連住鯊魚果舊)縮細到1.5cm果陣,你就可幫佢接生架喇,鯊魚超易養,如果我唔係反缸,仲可以養好耐

203.198.24.5


--------------------------------------------------------------------------------

發表時間: 2001/9/10-21:55:28
發表作者: chchau
發表內容: 在邊度買的??
出世時幾大條,會否咬其他魚??


203.83.113.171


--------------------------------------------------------------------------------

發表時間: 2001/9/11-06:49:51
發表作者: 魚先生
發表內容: 在凱旋買的,$80 蚊一隻,度過已有四吋長了,個營養囊已1.7cm,點樣接生呢,是否用較剪剪開個殼呢,出面賣$800一條 是否這一隻,食嘜野呢?接生係唔係剪斷佢條臍帶呀?

61.18.220.220


--------------------------------------------------------------------------------

發表時間: 2001/9/11-09:58:03
發表作者: Gordon
發表內容: 魚先生,

I`ve bought the shark eggs from 凱旋 last year and they should be zebra shark.Too bad that they died months later after they hatched.You may find the details of this type of shark:

Zebra Shark

What To Look For:A slender-bodied shark with lateral ridges and a very long
low caudal fin.

Color:Juveniles are brown with pale stripes. As the shark matures its body
becomes pale tan with scattered dark leopard-like spots.

Size:Most sharks average 6 to 7 feet (1.8 to 2.1m), and reach a length of at
least 7.6 ft (2.3 m), and few individuals may attain a total length of 11.6 ft (3.54 m). Males mature at 4.8 to 6 ft (1.47 to 1.83 m). Females mature at 5.5 to 5.6 ft (1.69 to 1.71m).

Teeth:Small, tricuspid.

Habitat:Tropical inshore waters.

Distribution:Western Pacific and Indian Ocean.

Biology:
Prey- Molluscs, crustaceans and small fish.

Reproduction- Oviparous. The shark lays dark brown or purple egg-cases. Each
egg - case has tufts of hairlike fibers which serve to anchor it to the
substrate. Pups hatch at a size of 7.8 to 14 inches [20 to 36 cm].

Behaviour:
General- Usually seen resting on sandy areas of the reef, propped up on its
pectoral fins and facing the current with an open mouth. By day the shark is
sluggish, but it may become more active at night.

Dispositionocile Danger to humans - Generally nil, but it has the
equipment to deliver a painful, bite to its tormentors.

202.128.229.3


--------------------------------------------------------------------------------

發表時間: 2001/9/11-13:03:59
發表作者: key
發表內容: 魚先生,
你條鯊魚碼8-10吋先接生,你從鯊魚蛋M個入水口,係果度撕開就ok仲有千奇唔好剪斷佢條臍帶佢會受細菌感染,會唔夠野食,條臍帶會係出生後被吸收,你唔好發夢啦,邊到係$800果隻,只係九間鯊楂北極星賣$60一條楂,麥而家D鯊魚蛋咁貴,我上年買$60楂ma!!!

203.198.24.5


--------------------------------------------------------------------------------

發表時間: 2001/9/11-14:16:37
發表作者: Gordon
發表內容: 咁$800麙躞T魚又真係好靚!至於條九間鯊(?)就蠢d,我麙瓥ㄕn似唔多識游水,成日用對鰭薯皜.旺角買炟u係要格下價先好!

202.128.229.3


--------------------------------------------------------------------------------

發表時間: 2001/9/11-15:06:32
發表作者: key
發表內容: hi Gordon,
D九間鯊係夜行性同底妻性要夜晚先會周圍游架,


203.198.24.5


--------------------------------------------------------------------------------

發表時間: 2001/9/11-15:25:08
發表作者: Gordon
發表內容: key, 多謝補充同提醒,冇錯,佢一熄鷟O就出蟈,但都係好快就沉番落水底.

202.128.229.3


--------------------------------------------------------------------------------

發表時間: 2001/9/11-20:22:57
發表作者: HWL
發表內容: 各位, 下列英文係節錄自 coral realm, 有關此等珊瑚鯊之自然生態. 如有興趣睇埋圖可 俾e-mail address 我:

Bamboos and Epaulettes -
"True" Reef Dwelling Sharks
One very unique group of reef-associated sharks is the family Hemiscylliidae. There are at least 13 species of what are commonly dubbed bamboo and epaulette sharks. Although they tend to inhabit, shallow coastal waters, the biology of many of these sharks is relatively poorly known. This is in part because a number have very limited distributions. For example, the hooded epaulette shark (Hemiscyllium strahani) is only known from northern Papua New Guinea. Hallstrom`s epaulette shark also has a relatively small range, having been reported from the southern coast of Papua New Guinea (including Milne Bay Province.)
The genus Hemiscyllium is limited in its range to Australia, Papua New Guinea, and Indonesia. The Chiloscyllium spp. have a broader range in the Indo-west Pacific (especially the Australia-Asia region). One of the widest ranging species in the family is the Indian bamboo shark (Chiloscyllium indicum). This species ranges from the Arabian Sea and India east to the Solomon Islands, north to Japan. Another reason that relatively little is known about their biology, is because they`re not important food fishes (although they are taken incidentally and eaten in a number of different countries).

All of these sharks are relatively small (less than 103 cm [41 inches]) and live on coral or rocky reefs, or under benthic debris. They have very muscular paired fins that enable them to clamber over the sea floor. Some of these sharks move more like salamanders than their cartilaginous cousins. Although they can display bursts of energetic swimming when threatened, most of their locomotion takes the form of walking on their paired fins. The specialized fins, as well as their relatively slender physiques, allow them to wiggle through coral crevices, move within staghorn coral thickets, and to back out of tight spots. (The more active sharks have a hard time backing up.)
Most of the Hemiscyllium spp. are found on coral reefs, while the bamboo sharks are also found on rocky reefs or sand flats and slopes. For example, the brownbanded bamboo shark is very common on boulder strewn, rocky reefs along the southern coast of Queensland, Australia. Here it can be found resting in crevices, next to two known-bamboo shark predators, the ornate and spotted wobbegongs (Orectolobus ornatus and O. maculatus respectively ). Others, like the gray banded bamboo shark (Chiloscyllium griseum) may be as common on open sand bottoms, as on reefs.
At least some of these sharks are found in the shallow intertidal zone. For example, the epaulette shark (Hemiscyllium ocellatum) is often found in tide pools on the Great Barrier Reef. Studies of this species have shown that it is very tolerant of low oxygen levels (hypoxia conditions) - an adaptation to its inhabiting shallow tidal flats where water temperatures rise and oxygen levels can fall rapidly at ebb tide. One lab study showed that this shark was unaffected when exposed to severe hypoxia (an oxygen level of 0.35 mg/l at a water temperature of 24 慢, 75 慚) for two hours.

Most, but not all, of these sharks are nocturnal, emerging from the shelter of the reef to hunt benthic invertebrates (including mollusks, worms, mantis shrimps, decapod shrimps, crabs) and small bottom-dwelling fishes after dark. They will also probe the substrate in search of a concealed meal, like a burrowing worm or crustacean. By quickly increasing the mouth and gill cavities, it will also suck its prey from reef interstices. I have seen an epaulette shark twist its body, so that the head and anterior portion of the body were upside down, so that it could suck a shrimp from a crevice ceiling.
At least some species will return to the same diurnal resting site at the end of the night for long periods of time. For example, a juvenile brownbanded bamboo shark returned to either the same terrestrial plant leaf or rotting pile of bamboo for nearly a month (I was only at the site for a month, so it may have used the same sites for even a longer time period).

The hemiscylliids are oviparous, depositing two atendril adhesive egg case on the sea floor at a time. (At least one species lays each pair of eggs an average of every seven days.) The young of most species are rarely observed in the wild, and apparently live deep within coral crevices and in dense staghorn coral beds, where they are safe from most predators (including other sharks).
The color patterns of all but one of the hemiscyllids change as they grow. Bamboo shark juveniles usually have distinct bands that fade or disappear with age, while young epaulette sharks possess bands that transform into spots as they grow. The banding pattern is seen in a number of different reef-associated fishes and may act to disrupt their body shape or help them to blend with sea grass or coral branches. In either case, the color pattern apparently makes them less susceptible to predators. This may be why the bands are lost as this shark grows and becomes less of a target to piscivorous predators.
The color patterns of the young and old epaulette sharks also provide effective camouflage, especially when they are viewed from above, while the eyespots (ocelli) may function to dupe would-be predators. Predators that approach the bottom-oriented epaulette shark from above see the ocelli as they look down. The paired eyespots may serve to intimidate them by mimicking the head-on perspective of a piscivorous fish.



203.198.23.169


--------------------------------------------------------------------------------

發表時間: 2001/9/11-20:30:23
發表作者: 魚先生
發表內容: 多謝賜教,不過原來條魚咁平市價,早知買條現成好了,我在大興街市芾常常買到灰色既鯊魚,細細條,5-6吋,唔駛三蚊一條,

203.168.223.163


--------------------------------------------------------------------------------

發表時間: 2001/9/12-14:41:14
發表作者: Gordon
發表內容: 魚先生
乜街市有生屪T魚賣咩?邊度呀?
我諗買一條同買一隻蛋係唔同,起碼你可以幫佢接生呀嗎?!

202.128.229.3


--------------------------------------------------------------------------------

發表時間: 2001/9/12-17:15:54
發表作者: key
發表內容: 魚先生,
當條鯊魚出世果陣,好似生仔咁興奮架,果時你會明架啦
Gordon,
我仲末收到張相呀,thanks



203.198.2.7


--------------------------------------------------------------------------------

發表時間: 2001/9/12-17:42:05
發表作者: Gordon
發表內容: key
對唔住,我重未set好部電腦,我諗要下星期初先可以send俾你!

202.128.229.3


--------------------------------------------------------------------------------

發表時間: 2001/9/12-20:04:25
發表作者: key
發表內容: Gordon,
oic,咁我等你D相,麻煩晒
__________________
calvin
calvin 目前離線  
 


主題工具 搜尋本主題
搜尋本主題:

進階搜尋
顯示模式

發表規則
不可以發表新主題
不可以回覆主題
不可以上傳附加檔案
不可以編輯您的文章

論壇啟用vB 代碼
論壇啟用表情圖標
論壇啟用[IMG]代碼
論壇禁用HTML代碼
論壇轉頁



所有時間均為 +8. 現在的時間是 05:33 PM.


Powered by: vBulletin Version 3.0.7
版權所有 ©2000 - 2018, Jelsoft Enterprises Ltd.
Portal By vbPortal Version 3.0.0
Copyright ©2000-2018, phpPortals. All Rights Reserved.
Copyright (c) 2000-2006 www.hkaquazone.com, all right reserved.