The incredible moment a great white shark erupts from the sea to kill its prey

The incredible moment a great white shark erupts from the sea to kill its prey

英國媒體24日刊登了一位野生動物攝影師近距離拍攝的大白鯊捕食瞬間，場面令人驚心動魄。在攝影師Chris Brunskill的鏡頭中，大白鯊雖然體形碩大，捕食時卻身手矯健，縱身躍出水面6米高，張開大嘴將它的“美食”緊緊咬在口中。為了拍攝這組照片，攝影師在靠近南非開普敦的海面上等候了3個小時。

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國際線上專稿：據英國《每日郵報》報道，南非海豹島水域一條巨大白鯊張著大口從海中一躍而起，顯示出可怕的殺傷力。這條巨大鯊魚躍出水面20英尺(約6米)，嘴角還流淌著獵物的鮮血。

　　這張震撼的鯊魚捕食照片是由一位野生動植物攝影師克裏斯·布朗斯希爾霎那間拍攝到的。在距南非開普敦附近的海豹島不遠處，攝影師們用拖網拖住一隻海豹作為誘餌，等候鯊魚嗅到海豹的氣味，尾隨而來。突然，一隻鯊魚從海面躍出，出其不意地向它的獵物發起進攻，充分展示了它的爆發力。

　　海豹島周圍地區是世界上僅有的鯊魚定期從水面下躍起出的一塊地方。因此，巨大的白鯊長期以來為了觀察獵物，鍛鍊出了自己的絕招“間諜跳”。它們不時的將頭部從海面下抬起盯著它們的獵物，或是突然跳起，通過瞬間觀察來確定獵物的情況。所以，這種跳躍被稱為鯊魚的“間諜跳”。

　　普通的白鯊身長16英尺(約4.8米)，體重達2,400磅(約1088.6公斤)。和許多其他鯊魚一樣，白鯊在其主要牙齒後部有幾排鋸齒狀的牙齒，這些鋸齒狀牙齒可迅速致獵物于死地。(海瀾)

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Flying: The great white shark shows its awesome power and acrobatic prowess as it breaches the water in False Bay, South Africa

All over: The seal has no idea what hit is as the shark explodes from the deep sea to snare its prey at the surface

The perfect predator: The shark only jumps out of the water for a split second to secure its prey

Caught on camera: Chris Brunskill waits patiently on the back of a boat in False Bay to capture the rare moment of a shark breaching the water

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雙角大魟魚 重逾200公斤

【聯合報╱記者苗君平／梧棲報導】 2009.08.17 04:40 am

梧棲港籍的登滿財三號漁船，昨天在台中港外海捕獲一尾罕見雙角魟魚，重達2百多公斤，是近年來捕獲最大的一尾，吸引許多民眾圍觀；有老漁民表示，過去常捕到數百公斤魟魚，近年來漁業資源枯竭，大魚愈來愈少了。

船長林國全說，昨日清晨在台中港外海約16浬處作業時，意外捕獲這尾罕見雙角大魟魚，重達2百多公斤，「出乎預料之外」，雙角魟魚的特徵是體盤寬，尾巴細長，頭部明顯鼓起來比體盤高，使眼睛和噴水孔變成長在頭兩側，外型特異像似大型風箏。

他表示，雙角魟魚為深海魚，東部海域較多，中部海域較少，魟魚不是很高級魚種，經常捕獲重達數百公斤的大魟魚，近年來愈來愈少，尤其是大型魟魚更不多見，大部分在30公斤左右，海洋資源日愈枯竭，「魚都愈來愈小了」。

有名陳姓漁販表示，魟魚軟骨無刺，肉質甜美，有大量膠質，口感很好，魚體兩側有如翅膀一般的鰭，更是細嫩，清炒、煮湯、紅燒或煎食味道都不錯，一魚可多吃法。

【2009/08/17 聯合報】

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Chlamydoselachus africana, a new species of frilled shark from southern Africa

Ebert, D.A. & Compagno, L.J.V. (2009): Chlamydoselachus africana, a new species of frilled shark from southern Africa (Chondrichthyes, Hexanchiformes, Chlamydoselachidae).

• Zootaxa, 2173: 1-18.

Abstract

Frilled sharks (Chondrichthyes, Hexanchiformes, Chlamydoselachidae), long believed to be a monotypic family and genus, consisting of a single wide ranging species, Chlamydoselachus anguineus (Garman, 1884), is now known to contain at least two species. A new species of frilled shark, Chlamydoselachus africana, sp. nov., is described from five specimens collected from southern Africa. The new species, although difficult to distinguish externally from the well known C. anguineus, differ internally by the structural differences in the chondrocranium, lower total vertebral and spiral valve counts, and pectoral-fin radial counts. The new species, Chlamydoselachus africana, is known from off southern Angola, Namibia, and South Africa.

Distribution of Chlamydoselachus africana

Key to Species of Chlamydoselachus
1a. Total vertebral centra 160–171, MP-DP transition between the 72nd and 75th vertebral segment and occurs about over the pelvic fins. Spiral intestinal valve counts 35–49. Head length 13.1–16.2% of total length............Chlamydoselachus anguineus Garman, 1884.

1b. Total vertebral centra 147, MP-DP transition at 18th vertebral segment just behind the posterior end of the pectoral fins. Spiral intestinal valve counts 26–28. Head length 17.3–17.9%............Chlamydoselachus africana, new species.

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