Perth之旅－「與鯊魚共舞」，「我們進入沙漠區-Pinnacles, 黃藥師的石頭陣]

ranger53100

原帖由 aria528 于 28-4-2009 10:19 AM 发表

你是少數几位認同我做這件事的人
我娘至今還不能理解為何我花澳幣139去給鯊魚看 :p

p/s:我有朋友告訴我和我游泳的鯊魚是nurse shark, 你對鯊魚有研究嗎，可否分享一下?

趁年轻时疯狂一番没啥不妥， 我上次去了sydney玩了几样我自己也觉得贵到离谱的活动但我没后悔过。
一场来到不玩， 不试的话免得老来后悔时对你的后代说。。。
曾经有段历险摆在我眼前， 但我未曾好好珍惜， 如果有机会再来一次。。。 我会试TMD10次8次！ 哈哈～

我对鲨鱼没研究～ 只知道鲨鱼种类繁多， 但给我最恐怖的种类乃是GREAT WHITE






The great white shark has a robust large conical-shaped snout. It has almost the same size upper and lower lobes on the tail fin (like most mackerel sharks, but unlike most other sharks).
Great white sharks display countershading,having a white underside and a grey dorsal area (sometimes in a brownor blue shade) that gives an overall "mottled" appearance. Thecoloration makes it difficult for prey to spot the shark because itbreaks up the shark's outline when seen from a lateral perspective.When viewed from above, the darker shade blends in with the sea andwhen seen from below casts a minimal silhouette against the sunlight.
Great white sharks, like many other sharks, have rows of teethbehind the main ones, allowing any that break off to be rapidlyreplaced. A great white shark's teeth are serrated and when the sharkbites it will shake its head side to side and the teeth will act as asaw and tear off large chunks of flesh. Great white sharks oftenswallow their own broken off teeth along with chunks of their prey'sflesh.




SizeA typical adult great white shark measures 4–4.8 metres (13–16 ft) and has a mass of 680–1,100 kilograms (1,500–2,400 lb),females generally being larger than males. The great white shark's"normal" maximum size is about 6 m (20 ft), with a "normal" maximumweight of about 1,900 kg (4,200 lb).
The maximum size of the great white shark has been hotly debated. Richard Ellis and John E. McCosker, both academic shark experts, devote a full chapter in their book, Great White Shark (1991), to analysing various accounts of extreme size.
For several decades, many ichthyological works, as well as the Guinness Book of World Records, listed two great white sharks as the largest individuals caught: an 11 m (36 ft) great white captured in Southern Australian waters near Port Fairy in the 1870s, and an 11.3 m (37 ft) shark trapped in a herring weir in New Brunswick, Canadain the 1930s. While this was the commonly accepted maximum size,reports of 7.5–10-metre (25–33 ft) great white sharks were common andoften deemed credible.



Some researchers questioned the reliability of both measurements,noting they were much larger than any other accurately-reported greatwhite shark. The New Brunswick shark may have been a misidentified basking shark,as both sharks have similar body shapes. The question of the Port Fairyshark was settled in the 1970s, when J.E. Reynolds examined the shark'sjaws and "found that the Port Fairy shark was of the order of 5 m(17 ft) in length and suggested that a mistake had been made in theoriginal record, in 1870, of the shark's length.[10]
The largest specimen Ellis and McCosker endorse as reliably measured was 6.4 m (21 ft) long, caught in Cubanwaters in 1945; though confident in their opinion, Ellis and McCoskernote other experts have argued this individual might have been a fewfeet shorter. The unverified weight reported for the shark from Cubawas 3,270 kilograms (7,200 lb). There have since been claims of largergreat white sharks, but, as Ellis and McCosker note, verification isoften lacking and these extraordinarily large great white sharks have,upon examination, all proved under the 20–21 feet (6.1–6.4 m) limit.For example, a much-publicized female great white said to be 7.13 m(23.4 ft) was fished in Maltain 1987 by Alfredo Cutajar. In their book, Ellis and McCosker agreethis shark seemed to be larger than average, but they did not endorsethe 7.13 m (23.4 ft) measurement. In the years since, expertseventually found reason to doubt the claim, due in no small part toconflicting accounts offered by Cutajar and others. A BBCphoto analyst concluded that even "allowing for error ... the shark isconcluded to be in the 18.3 ft (5.6 m) range and in no way approachesthe 23 ft (7.0 m) reported by Abela." (as in original)[11]
According to the Canadian Shark Research Centre, the largestaccurately measured great white shark was a female caught in August1988 at Prince Edward Islandoff the Canadian (North Atlantic) coast and measured 6.1 m (20 ft). Theshark was caught by David McKendrick, a local resident from Alberton,West Prince.[11]
The question of maximum weight is complicated by the unresolvedquestion of whether or not to account for the weight of a shark'srecent meals when weighing the shark itself. With a single bite, agreat white can take in up to 14 kg (31 lb) of flesh, and can gorge onseveral hundred kilograms or pounds of food.
Ellis and McCosker write in regards to modern great white sharksthat "it is likely that [Great White] sharks can weigh as much as2 tons", but also note that the largest recent scientifically measuredexamples weigh in at about 2 metric tons (2.2 short tons). Other large, predatory sharks may grow to comparable lengths as the Great White, including the Tiger shark[12], the Greenland Shark[13] and the Pacific sleeper shark[14].However, the Great White is the most massive predatory shark to exceed6 metres (20 ft) and is the only one to weigh more than 2 metric tons.
The largest great white shark recognized by the International Game Fish Association(IGFA) is one landed by Alf Dean in south Australian waters in 1959,weighing 1,208 kg (2,660 lb). Several larger great white sharks caughtby anglers have since been verified, but were later disallowed fromformal recognition by IGFA monitors for rules violations.

[ 本帖最后由 ranger53100 于 28-4-2009 11:23 AM 编辑 ]

aria528

謝謝你的分享，great white shark看起來真的很可怕呀~
「曾经有段历险摆在我眼前， 但我未曾好好珍惜， 如果有机会再来一次。。。 我会试TMD10次8次！」，這句對白很周星馳，哈哈

BTW, what is TMD?

ranger53100

原帖由 aria528 于 29-4-2009 10:03 AM 发表
謝謝你的分享，great white shark看起來真的很可怕呀~
「曾经有段历险摆在我眼前， 但我未曾好好珍惜， 如果有机会再来一次。。。 我会试TMD10次8次！」，這句對白很周星馳，哈哈

BTW, what is TMD?

就是“他X的”的简称

SF03

原帖由 aria528 于 28-4-2009 10:13 AM 发表


看起來是很可怕，
其實安全過搭飛機的，哈哈。

毕生难忘吧，毕竟这样的机会不多

ghee13

LZ真的很大胆。
我就不可能去跟鲨鱼共舞了。
或者说我是旱鸭子吧。
根本就不可能去潜水。
LZ是在Perth念书吗？

aria528

原帖由 ranger53100 于 29-4-2009 10:26 AM 发表


就是“他X的”的简称

TMD~原來如此，哈哈

aria528

原帖由 ranger53100 于 29-4-2009 10:26 AM 发表


就是“他X的”的简称

TMD~ 原來如此~哈哈

aria528

原帖由 SF03 于 29-4-2009 10:47 AM 发表


毕生难忘吧，毕竟这样的机会不多

是啊，我覺得很值得呢，
至今還回味無窮 :）

aria528

我不在Perth念書，是去那里旅行　　：)

原帖由 ghee13 于 29-4-2009 11:59 AM 发表
LZ真的很大胆。
我就不可能去跟鲨鱼共舞了。
或者说我是旱鸭子吧。
根本就不可能去潜水。
LZ是在Perth念书吗？

subiaco

楼主，这个经验一定令你毕生难忘。我想你的家人也这样认为！！

aria528

呵呵
是啊，我很appreciate有這個一群很支持我的家人啊~

原帖由 subiaco 于 1-5-2009 01:00 PM 发表
楼主，这个经验一定令你毕生难忘。我想你的家人也这样认为！！

aria528

Pinnacles是天然形成的的石灰岩石，岩石中主要物質是由早期海裡的貝殼風化而成。在沙漠中，我們看到許多大大小小不同形狀的石頭，很特別，我覺得它們有點像金傭武俠小說裡黃藥師怖局的石頭陣。

kiokko

我没有酱的budget，我是穷人一名。。。。

Elaine9012

哇， 好好玩哦，想试一试