1
00:00:09,809 --> 00:00:13,046
這裡是大西洋的墳場

2
00:00:13,513 --> 00:00:16,416
所以附近有很多船骸

3
00:00:17,250 --> 00:00:19,986
其中一個就是帕布思船骸

4
00:00:25,358 --> 00:00:26,393
要不是親眼看見

5
00:00:26,459 --> 00:00:28,061
我絕不相信會發生這樣的事

6
00:00:29,396 --> 00:00:30,663
(US111號案件)

7
00:00:30,697 --> 00:00:31,765
{\an8}(北卡州外灘群島)

8
00:00:31,798 --> 00:00:32,832
{\an8}(2017年11月)

9
00:00:41,841 --> 00:00:43,977
我們認為船骸那裡有石斑

10
00:00:44,010 --> 00:00:45,178
所以打算去鏢魚

11
00:00:49,416 --> 00:00:51,151
準備去捕石斑了嗎 準備好了

12
00:00:51,618 --> 00:00:52,485
下水吧

13
00:01:14,841 --> 00:01:17,010
一切正常,不過是艘普通沉船

14
00:01:17,277 --> 00:01:18,778
希望能捕些魚來吃

15
00:01:24,050 --> 00:01:25,485
這裡有不少石斑

16
00:01:29,322 --> 00:01:30,890
我很幸運能射到一條

17
00:01:40,500 --> 00:01:41,801
但我完全不知道當時

18
00:01:41,835 --> 00:01:43,536
附近正有條大型錐齒鯊出沒

19
00:01:46,840 --> 00:01:49,075
錐齒鯊雖然在水下看來凶狠

20
00:01:49,109 --> 00:01:51,044
但牠們其實是溫馴的鯊魚

21
00:01:52,145 --> 00:01:53,079
{\an8}鯊魚

22
00:01:54,080 --> 00:01:56,216
不過這條鯊魚體型很驚人

23
00:01:56,616 --> 00:01:59,886
{\an8}我雖然不害怕,還是很注意牠的動向

24
00:02:02,388 --> 00:02:04,958
我覺得這就像在酒吧裡遇到大塊頭

25
00:02:04,991 --> 00:02:06,860
稍微小心應對就好

26
00:02:10,196 --> 00:02:11,664
畢竟大家都是來玩的

27
00:02:18,238 --> 00:02:20,240
彼此都給對方一點空間

28
00:02:20,273 --> 00:02:22,342
基本上應該能相安無事

29
00:02:27,780 --> 00:02:29,883
接著我又射中另一條石斑

30
00:02:36,823 --> 00:02:40,293
結果卻引起一連串的連鎖事件

31
00:02:49,769 --> 00:02:53,940
接下來突然憑空出現三,四條錐齒鯊

32
00:02:58,845 --> 00:03:00,313
就像是閘門突然大開一樣

33
00:03:04,083 --> 00:03:05,885
危險程度正在升高

34
00:03:10,590 --> 00:03:14,594
你能感覺到強大敵意四處襲來

35
00:03:17,697 --> 00:03:21,100
我雖然不害怕,還是想盡快脫離那裡

36
00:03:54,968 --> 00:03:57,237
還好我有同伴相陪

37
00:03:57,770 --> 00:04:00,473
也很高興我們倆都平安脫身

38
00:04:03,743 --> 00:04:06,613
麥特沃特事件並不是潛水者

39
00:04:06,646 --> 00:04:08,982
第一次在船骸遭遇鯊魚

40
00:04:13,720 --> 00:04:18,324
全球的船骸周圍都發生過驚險遭遇

41
00:04:20,360 --> 00:04:22,996
調查人員很好奇…

42
00:04:23,029 --> 00:04:26,266
什麼原因讓可怕掠食者跑到船骸附近

43
00:04:26,866 --> 00:04:28,801
並刺激牠們展開攻擊?

44
00:04:35,708 --> 00:04:37,944
鯊魚科學家萊恩強森

45
00:04:37,977 --> 00:04:40,179
注意到一個危險趨勢

46
00:04:41,914 --> 00:04:44,884
{\an8}近年來,船骸潛水越來越普遍

47
00:04:44,917 --> 00:04:46,586
{\an8}尤其是水肺潛水

48
00:04:46,619 --> 00:04:49,155
{\an8}因此在這些地點

49
00:04:49,188 --> 00:04:53,059
人鯊遭遇變得越來越頻繁

50
00:04:54,894 --> 00:04:56,496
在檢視過麥特沃特

51
00:04:56,529 --> 00:04:58,131
有驚無險遭遇的影片

52
00:04:58,965 --> 00:05:01,267
萊恩探索了一個或能解釋

53
00:05:01,301 --> 00:05:04,671
錐齒鯊為何追逐麥特和友人的理論

54
00:05:06,439 --> 00:05:10,977
(理論:捉迷藏)

55
00:05:17,583 --> 00:05:21,621
很可能錐齒鯊正是故意利用船骸

56
00:05:21,688 --> 00:05:23,823
來做為牠獵食策略的一部分

57
00:05:29,762 --> 00:05:33,833
許多鯊魚會利用各類地物做為掩護

58
00:05:33,900 --> 00:05:37,136
當毫無戒心的獵物經過時

59
00:05:37,170 --> 00:05:39,405
鯊魚就會發動快速伏擊

60
00:05:40,740 --> 00:05:43,810
這樣的策略正是牠能成為

61
00:05:43,876 --> 00:05:45,678
頂級掠食者的原因

62
00:05:47,013 --> 00:05:49,615
這項理論具有深遠含意

63
00:05:50,650 --> 00:05:53,386
如果鯊魚利用船骸進行伏擊

64
00:05:54,187 --> 00:05:56,322
這類的水下人造物

65
00:05:56,356 --> 00:05:59,325
就會對潛水客構成極大威脅

66
00:06:00,993 --> 00:06:05,698
美洲和南非附近海域有上千處船骸

67
00:06:05,898 --> 00:06:09,335
所以我們必須觀察並了解

68
00:06:09,369 --> 00:06:12,939
鯊魚如何運用這些船骸做為獵食場

69
00:06:13,806 --> 00:06:17,777
研究人員前往北卡州外海進行調查

70
00:06:19,779 --> 00:06:22,982
(調查)

71
00:06:24,217 --> 00:06:25,585
艾芙莉帕斯頓博士

72
00:06:25,651 --> 00:06:27,587
與海洋暨大氣總署研究員

73
00:06:27,620 --> 00:06:30,123
來到北卡州外海研究船骸

74
00:06:31,457 --> 00:06:35,762
{\an8}北卡州海岸外有上百處船骸

75
00:06:38,631 --> 00:06:41,300
為了瞭解這些人造物

76
00:06:41,334 --> 00:06:44,437
在生態上發揮什麼功能

77
00:06:44,470 --> 00:06:48,040
我們想了解魚類如何運用這些船骸

78
00:06:48,107 --> 00:06:50,243
當然也包括大型掠食者,如鯊魚

79
00:06:54,547 --> 00:06:56,249
為了觀察船骸

80
00:06:56,282 --> 00:06:59,719
艾芙莉和團隊運用了多種方法

81
00:07:01,587 --> 00:07:06,626
他們潛水到達危險的一百多呎深度

82
00:07:11,998 --> 00:07:14,133
同時也運用水下無人機

83
00:07:15,134 --> 00:07:17,703
這種低衝擊工具,來檢視船骸中

84
00:07:17,737 --> 00:07:19,439
許多難以接近的區域

85
00:07:21,073 --> 00:07:22,775
我們的研究相當具不確定性

86
00:07:22,809 --> 00:07:26,446
在下水前,根本不知道會遭遇什麼

87
00:07:27,146 --> 00:07:29,148
有時你潛到船骸後

88
00:07:29,215 --> 00:07:31,784
發現完全沒有鯊魚的蹤跡

89
00:07:33,052 --> 00:07:37,190
其他時候,會在船骸這種小棲地中

90
00:07:37,223 --> 00:07:40,026
發現超過200條鯊魚

91
00:07:44,430 --> 00:07:47,233
艾芙莉和團隊花費數百小時

92
00:07:47,300 --> 00:07:48,968
觀察這一大群鯊魚

93
00:07:56,809 --> 00:08:00,880
結果或許能協助證實捉迷藏理論

94
00:08:04,550 --> 00:08:08,488
有時你會看到一大群魚構成餌球

95
00:08:08,521 --> 00:08:11,591
以龐大,團體的形式移動

96
00:08:11,624 --> 00:08:17,463
有時會發現錐齒鯊就躲藏在餌球中

97
00:08:21,300 --> 00:08:25,438
所以有時你會發現鯊魚

98
00:08:25,471 --> 00:08:28,040
居然會是餌球的一部分

99
00:08:28,074 --> 00:08:30,743
悄聲隱藏在無害的魚群中

100
00:08:34,514 --> 00:08:36,749
這是相當驚人的發現

101
00:08:36,782 --> 00:08:40,152
如果鯊魚利用餌球做偽裝來發動攻擊

102
00:08:41,020 --> 00:08:45,391
牠們也可能同樣會利用船骸做偽裝

103
00:08:48,027 --> 00:08:50,596
萊恩卻不認為如此

104
00:08:52,431 --> 00:08:55,034
(分析)

105
00:08:57,136 --> 00:09:01,641
並沒有證據說明鯊魚真的會利用魚群

106
00:09:01,674 --> 00:09:04,310
或者船骸來偽裝自己

107
00:09:04,377 --> 00:09:07,013
那不過是鯊魚和魚群

108
00:09:07,046 --> 00:09:10,850
喜歡且願意在同一環境中共處

109
00:09:12,351 --> 00:09:14,787
萊恩重新檢視麥特沃特事件

110
00:09:14,854 --> 00:09:18,357
注意到鯊魚並不是撲向麥特

111
00:09:18,391 --> 00:09:20,393
而是他鏢到的魚

112
00:09:24,997 --> 00:09:29,769
我認為這個案例裡出現的並不是伏擊

113
00:09:29,835 --> 00:09:32,972
而是偵測到掙扎中的魚

114
00:09:36,442 --> 00:09:40,680
我不認為鯊魚會刻意利用船骸

115
00:09:40,746 --> 00:09:42,281
做為牠獵食策略的一部分

116
00:09:42,348 --> 00:09:44,817
而只不過是這些錐齒鯊

117
00:09:44,850 --> 00:09:46,786
喜歡在船骸附近輕鬆巡游

118
00:09:46,819 --> 00:09:50,723
而剛好鏢魚客也會來船骸鏢魚

119
00:09:51,324 --> 00:09:55,661
看來偽裝捉迷藏理論似乎不成立

120
00:10:00,266 --> 00:10:02,401
調查人員還是無法解釋

121
00:10:02,435 --> 00:10:04,437
船骸周遭的可怕遭遇

122
00:10:07,173 --> 00:10:09,141
不過他們很快發現鯊魚

123
00:10:09,208 --> 00:10:11,744
會以另一種方式利用船骸

124
00:10:12,211 --> 00:10:15,548
而對周遭的潛水客或泳客造成危險

125
00:10:16,515 --> 00:10:21,153
佛州南部一件可怕案例提供了新線索

126
00:10:23,055 --> 00:10:24,423
媽啊

127
00:10:30,262 --> 00:10:34,266
佛州南部以沙灘而全球知名

128
00:10:35,701 --> 00:10:38,537
很多海灘客不知道

129
00:10:38,571 --> 00:10:41,674
近岸有許多水下景點

130
00:10:42,808 --> 00:10:44,710
而且還很危險

131
00:10:45,745 --> 00:10:47,179
(US614號案件)

132
00:10:47,213 --> 00:10:49,815
{\an8}(佛州羅德岱堡,2014年6月)

133
00:11:01,627 --> 00:11:04,130
佛州長大的我們,水上活動必不可少

134
00:11:04,797 --> 00:11:08,134
{\an8}不管是駕船,釣魚或是到沙洲上玩

135
00:11:09,702 --> 00:11:13,439
22歲的潔西卡和朋友趁週末

136
00:11:13,506 --> 00:11:15,307
到距離龐帕諾比奇

137
00:11:16,108 --> 00:11:18,110
九浬遠的沿岸水路去玩

138
00:11:18,177 --> 00:11:19,679
加速,好呀

139
00:11:19,745 --> 00:11:21,681
該市是佛州的船骸之都

140
00:11:29,922 --> 00:11:34,193
這是我多年來,第一次玩輪胎滑水

141
00:11:35,394 --> 00:11:36,696
這裡的水質看來有點混濁

142
00:11:37,730 --> 00:11:41,267
我實在不是很敢下水

143
00:11:42,668 --> 00:11:45,304
總感覺情況不太對勁

144
00:11:46,672 --> 00:11:47,606
我無法解釋原因

145
00:11:47,640 --> 00:11:49,341
朋友只跟我說沒什麼不對勁

146
00:11:49,375 --> 00:11:51,444
我們都在這裡,你不會有事的

147
00:11:51,510 --> 00:11:53,546
別擔心,你不會有事的

148
00:11:53,612 --> 00:11:55,481
好好下水玩輪胎滑水吧

149
00:12:05,691 --> 00:12:06,659
結果我就是出事了

150
00:12:21,640 --> 00:12:22,875
感覺像被打了一拳

151
00:12:22,908 --> 00:12:24,110
我被什麼東西撞到了

152
00:12:25,878 --> 00:12:26,912
媽啊

153
00:12:26,979 --> 00:12:29,281
各位,發生事情了 你沒事吧

154
00:12:30,683 --> 00:12:31,684
怎麼回事?

155
00:12:33,719 --> 00:12:35,187
快把她拉上船

156
00:12:36,989 --> 00:12:37,957
抓著救生圈

157
00:12:39,258 --> 00:12:42,695
我嚴重驚嚇,無法相信居然被鯊魚咬

158
00:12:46,632 --> 00:12:50,836
我心裡完全不敢相信這是真的

159
00:12:54,607 --> 00:12:57,576
潔西卡面臨嚴重失血

160
00:12:58,911 --> 00:13:03,282
她的右腿肌肉嚴重撕裂,露出了骨頭

161
00:13:04,717 --> 00:13:07,620
花了三個月才完全康復

162
00:13:08,454 --> 00:13:10,523
我一直都知道水裡有鯊魚

163
00:13:10,556 --> 00:13:12,625
只是沒想到我會遭到攻擊

164
00:13:15,895 --> 00:13:19,698
潔西卡被咬的地點離船骸不到五浬遠

165
00:13:22,735 --> 00:13:24,637
使得調查人員不禁好奇

166
00:13:24,670 --> 00:13:26,906
船骸是否與這起事件有關聯

167
00:13:30,543 --> 00:13:33,078
海洋生物學家詹姆斯蘇利考斯基博士

168
00:13:33,112 --> 00:13:34,480
對此展開深入調查

169
00:13:36,949 --> 00:13:38,350
{\an8}佛州的特殊之處

170
00:13:38,417 --> 00:13:41,387
{\an8}就是這裡擁有很棒的自然棲地

171
00:13:41,420 --> 00:13:44,089
但當環境中開始出現人造棲地

172
00:13:44,123 --> 00:13:45,257
例如船隻殘骸

173
00:13:45,291 --> 00:13:48,861
就讓鯊魚多了能夠躲藏的地方

174
00:13:57,503 --> 00:14:01,740
光是佛州附近就有超過五千處船骸

175
00:14:01,774 --> 00:14:04,210
全球則是有數百萬處

176
00:14:05,344 --> 00:14:07,980
每處都充滿著各式各樣海中生物

177
00:14:09,448 --> 00:14:16,422
真鯛和石斑,海龜和魟魚

178
00:14:16,488 --> 00:14:20,960
包括各種的鯊魚

179
00:14:22,628 --> 00:14:27,566
船骸為某些鯊種提供了絕佳的棲地

180
00:14:27,633 --> 00:14:29,468
這裡有豐富的食物

181
00:14:29,501 --> 00:14:31,871
能用來躲避其他掠食者

182
00:14:31,904 --> 00:14:32,938
紀錄顯示

183
00:14:32,972 --> 00:14:36,141
船骸是鯊魚出沒的重要海域

184
00:14:37,776 --> 00:14:41,347
詹姆斯表示因為船骸對鯊魚很重要

185
00:14:41,380 --> 00:14:46,652
飢餓的母鯊可能在懷孕時在此處獵食

186
00:14:49,555 --> 00:14:54,193
(理論:愛巢)

187
00:14:58,130 --> 00:15:02,701
船骸對懷孕鯊魚的好處就是食物充足

188
00:15:02,735 --> 00:15:04,937
牠們不需要再出去覓食

189
00:15:05,004 --> 00:15:08,574
這樣牠們能夠就近照顧幼鯊

190
00:15:09,942 --> 00:15:12,912
船骸也能保護牠們免於掠食者騷擾

191
00:15:12,945 --> 00:15:16,682
所以不需花費很多力氣防備掠食者

192
00:15:16,749 --> 00:15:22,388
船骸就成為幼鯊存活的最佳地點

193
00:15:24,156 --> 00:15:26,525
孕期將屆時,懷孕鯊魚

194
00:15:26,558 --> 00:15:29,261
通常都會待在生產地附近

195
00:15:30,162 --> 00:15:31,897
如果愛巢理論正確

196
00:15:31,931 --> 00:15:35,901
並且懷孕鯊魚會利用船骸做為產房

197
00:15:35,968 --> 00:15:39,038
也許攻擊潔西卡的公牛鯊

198
00:15:39,104 --> 00:15:42,708
正是因為懷孕才會來到船骸附近

199
00:15:44,476 --> 00:15:48,514
所以我們希望能發現懷孕母鯊

200
00:15:48,914 --> 00:15:51,383
真的會聚集在這些區域

201
00:15:51,417 --> 00:15:53,886
好保護牠們的下一代

202
00:16:00,492 --> 00:16:05,130
(鯊魚測試:佛州朱匹特灣)

203
00:16:11,403 --> 00:16:12,638
為了測試這項理論

204
00:16:12,705 --> 00:16:16,275
詹姆斯和鯊魚研究人員布魯克安德森

205
00:16:16,308 --> 00:16:17,776
以及資深鯊魚潛水人員

206
00:16:17,810 --> 00:16:19,445
潔敏馬丁納尼一起出海

207
00:16:21,380 --> 00:16:23,849
潔敏帶他們來到離岸三浬的

208
00:16:23,882 --> 00:16:25,617
艾索波納三號船骸

209
00:16:27,119 --> 00:16:30,155
它原本是艘油輪,現在成了熱門潛點

210
00:16:30,189 --> 00:16:32,091
而且以鯊魚聚集出名

211
00:16:32,891 --> 00:16:34,626
在這裡找到懷孕鯊魚

212
00:16:34,660 --> 00:16:37,763
或能解開為何鯊魚會聚集船骸附近

213
00:16:39,098 --> 00:16:40,399
也或許…

214
00:16:40,432 --> 00:16:41,633
能找出牠們攻擊的原因

215
00:16:43,202 --> 00:16:45,404
選擇此處是因為這裡有船骸

216
00:16:45,437 --> 00:16:46,939
同時有許多鯊種出沒

217
00:16:47,006 --> 00:16:49,808
{\an8}公牛鯊, 檸檬鯊,加勒比海礁鯊

218
00:16:49,842 --> 00:16:52,644
{\an8}鐮狀真鯊,灰真鯊或許也有雙髻鯊

219
00:16:52,678 --> 00:16:57,049
這裡可能聚集了母鯊,可能還懷孕了

220
00:16:58,384 --> 00:17:01,587
為了確認船骸附近的鯊魚是否懷孕

221
00:17:02,421 --> 00:17:04,823
布魯克帶了全新的科技裝置

222
00:17:06,425 --> 00:17:08,961
一具客製的水下超音波儀器

223
00:17:10,996 --> 00:17:15,200
{\an8}你們帶這具超音波儀器到船骸旁

224
00:17:15,234 --> 00:17:20,506
{\an8}馬上就能檢查船骸旁的鯊魚是否懷孕

225
00:17:20,539 --> 00:17:21,640
水下80呎

226
00:17:21,707 --> 00:17:23,942
對,開始著裝下水吧 開始吧

227
00:17:26,078 --> 00:17:29,415
布魯克將待在船上尋找鯊魚蹤跡

228
00:17:30,549 --> 00:17:32,818
由詹姆斯操作超音波儀器

229
00:17:32,851 --> 00:17:35,354
潔敏負責他在水下的安全

230
00:17:36,055 --> 00:17:37,523
雖然有很多不確定性

231
00:17:37,589 --> 00:17:39,158
不過要在水下使用超音波儀器

232
00:17:39,191 --> 00:17:41,126
檢查鯊魚是否懷孕

233
00:17:41,160 --> 00:17:43,395
就必須非常靠近鯊魚們

234
00:17:44,263 --> 00:17:45,497
{\an8}開始吧

235
00:17:45,831 --> 00:17:46,932
{\an8}下水了

236
00:18:00,446 --> 00:18:01,713
{\an8}看到任何鯊魚了嗎?

237
00:18:02,915 --> 00:18:04,149
{\an8}還沒有

238
00:18:05,651 --> 00:18:07,186
{\an8}牠們通常會在這裡出沒

239
00:18:08,454 --> 00:18:10,389
{\an8}真是奇怪

240
00:18:12,024 --> 00:18:12,991
{\an8}突然間

241
00:18:13,592 --> 00:18:14,960
{\an8}天啊,小心

242
00:18:17,229 --> 00:18:20,499
{\an8}天啊,那條鯊魚就這麼出現

243
00:18:21,033 --> 00:18:22,634
{\an8}你看牠的體型之大

244
00:18:23,435 --> 00:18:25,070
{\an8}而且還是條母鯊

245
00:18:27,172 --> 00:18:30,175
幾乎一瞬間,出現一條大型母檸檬鯊

246
00:18:31,143 --> 00:18:33,979
{\an8}很少見到這麼大的檸檬鯊

247
00:18:34,947 --> 00:18:36,548
{\an8}不知道牠是不是懷孕了

248
00:18:37,015 --> 00:18:40,986
{\an8}更神奇的是,牠靠我們非常近

249
00:18:41,720 --> 00:18:43,755
{\an8}天啊,牠在繞著我游

250
00:18:50,195 --> 00:18:53,632
這些鯊魚動作迅速,所以你要反應快

251
00:18:53,665 --> 00:18:55,834
{\an8}現在情況有點怪

252
00:18:56,001 --> 00:18:58,437
{\an8}不過詹姆斯看到了機會

253
00:18:59,204 --> 00:19:02,040
{\an8}我只需要持續接觸幾秒鐘

254
00:19:02,074 --> 00:19:04,076
{\an8}就能看牠是否懷孕

255
00:19:04,510 --> 00:19:05,444
{\an8}好的

256
00:19:06,712 --> 00:19:09,548
可怕的是可能牠一回頭

257
00:19:09,581 --> 00:19:11,283
我們就完蛋了

258
00:19:14,620 --> 00:19:15,587
{\an8}天啊

259
00:19:21,360 --> 00:19:23,395
{\an8}天啊,就差一點

260
00:19:24,263 --> 00:19:25,297
{\an8}沒錯,不是鬧著玩的

261
00:19:25,898 --> 00:19:28,333
在80呎深船骸旁

262
00:19:28,400 --> 00:19:30,969
幫兇悍檸檬鯊做超音波

263
00:19:31,370 --> 00:19:33,272
可不是一件易事

264
00:19:34,239 --> 00:19:36,642
{\an8}該死,我失手了

265
00:19:39,578 --> 00:19:44,349
不過蘇利考斯基博士還是辦到了

266
00:19:48,320 --> 00:19:50,155
{\an8}天啊,這比預期要難進行

267
00:19:52,724 --> 00:19:54,459
{\an8}剩下的問題是…

268
00:19:54,493 --> 00:19:56,495
{\an8}怎麼樣,牠懷孕了嗎?

269
00:20:00,632 --> 00:20:01,900
{\an8}有可能

270
00:20:01,934 --> 00:20:04,203
{\an8}不過在水下實在無法確認

271
00:20:04,403 --> 00:20:05,971
{\an8}我們回船上吧

272
00:20:06,038 --> 00:20:07,039
{\an8}收到

273
00:20:15,113 --> 00:20:19,685
當天稍晚,詹姆斯檢視了超音波影像

274
00:20:21,520 --> 00:20:22,955
並無法完全確定

275
00:20:22,988 --> 00:20:25,691
他看到的就代表鯊魚懷孕了

276
00:20:27,626 --> 00:20:29,895
布魯克,看過影像後

277
00:20:29,962 --> 00:20:31,029
我覺得發現了一點線索

278
00:20:31,063 --> 00:20:31,897
我希望你也能看看

279
00:20:31,964 --> 00:20:32,965
好 我希望聽你的意見

280
00:20:33,031 --> 00:20:34,032
看這條鯊魚是否懷孕

281
00:20:34,066 --> 00:20:36,001
好啊,我們來看超音波影像

282
00:20:38,337 --> 00:20:42,474
檸檬鯊最多能產仔17條

283
00:20:43,175 --> 00:20:45,310
如果這條鯊魚懷孕了

284
00:20:45,344 --> 00:20:47,913
{\an8}他們應該就能看到幾個胚胎

285
00:20:49,047 --> 00:20:50,482
{\an8}快要能看到了

286
00:20:51,149 --> 00:20:52,217
{\an8}這真是太酷了

287
00:20:52,284 --> 00:20:53,118
{\an8}真是神奇

288
00:20:58,323 --> 00:20:59,858
{\an8}就在這,你覺得呢 看到了…

289
00:20:59,891 --> 00:21:02,294
{\an8}真的非常快 我覺得牠懷孕了

290
00:21:02,361 --> 00:21:04,630
{\an8}很酷吧?對啊 真的很棒

291
00:21:06,798 --> 00:21:08,900
{\an8}他們認為在超音波影像中

292
00:21:08,934 --> 00:21:10,569
至少看到三條幼鯊

293
00:21:12,904 --> 00:21:17,643
看到了嗎?對 有,真的很棒

294
00:21:17,676 --> 00:21:18,777
這代表什麼?

295
00:21:18,810 --> 00:21:22,014
這顯示了船骸的重要性

296
00:21:22,080 --> 00:21:25,817
還有牠在那裡做什麼?

297
00:21:30,489 --> 00:21:32,724
(分析)

298
00:21:33,892 --> 00:21:37,362
顯然蘇利考斯基關於船骸吸引

299
00:21:37,396 --> 00:21:40,432
懷孕鯊魚的理論可能是真的

300
00:21:41,800 --> 00:21:44,903
但試驗卻帶來更多問題,而不是答案

301
00:21:45,971 --> 00:21:49,207
碰巧鯊魚確實懷孕了

302
00:21:50,275 --> 00:21:55,047
{\an8}這就為我們開啟了新研究的幾個方向

303
00:21:55,213 --> 00:21:57,282
{\an8}不只是在佛州,也不只在船骸

304
00:21:57,349 --> 00:21:59,651
而是要在全球各地觀察

305
00:21:59,718 --> 00:22:02,888
懷孕鯊魚如何利用這種棲地

306
00:22:04,423 --> 00:22:06,491
但還是可能有其他因素吸引牠們過來

307
00:22:08,660 --> 00:22:10,295
這些其他因素

308
00:22:10,329 --> 00:22:14,499
或許跟另一種人造海洋棲地有關

309
00:22:15,701 --> 00:22:17,836
調查人員非常擔心

310
00:22:17,969 --> 00:22:20,405
這將增加人鯊遭遇的機會

311
00:22:23,742 --> 00:22:26,378
就在詹姆斯做測試不遠處的海岸

312
00:22:26,411 --> 00:22:28,880
發生了一個或能提供證明的案例

313
00:22:31,650 --> 00:22:32,784
我們要潛多深?

314
00:22:32,818 --> 00:22:35,087
今天要潛大約60呎,沒問題吧?

315
00:22:35,120 --> 00:22:36,254
當沒問題,超棒的

316
00:22:38,123 --> 00:22:39,391
(US891號案件)

317
00:22:39,424 --> 00:22:41,293
{\an8}(佛州基比斯坎,2019年2月)

318
00:22:44,096 --> 00:22:46,631
50歲牙醫師艾夫羅歐丹尼斯

319
00:22:46,665 --> 00:22:49,935
和朋友最愛的活動就是鏢魚

320
00:22:50,769 --> 00:22:51,803
好了嗎? 好了

321
00:23:11,723 --> 00:23:13,892
艾夫羅脫隊鏢魚

322
00:23:23,468 --> 00:23:25,604
很快就射到一條魚

323
00:23:31,710 --> 00:23:33,311
但是出現了不速之客

324
00:23:50,362 --> 00:23:52,130
鯊魚 水裡有鯊魚

325
00:24:05,010 --> 00:24:08,914
一瞬間,水裡出現一片血紅

326
00:24:13,618 --> 00:24:14,886
那是艾夫羅的血

327
00:24:21,993 --> 00:24:25,263
鏢魚活動差點以悲劇收場

328
00:24:25,330 --> 00:24:27,365
艾夫羅歐丹尼斯遭鯊魚攻擊倖存

329
00:24:27,466 --> 00:24:28,834
全都歸功於友人艾瑞克

330
00:24:28,867 --> 00:24:29,901
他聽到一陣騷動後

331
00:24:29,935 --> 00:24:31,269
趕緊把艾夫羅拉出水面

332
00:24:33,238 --> 00:24:35,207
醫院的醫生證實

333
00:24:35,240 --> 00:24:38,343
艾夫羅是遭到公牛鯊攻擊

334
00:24:38,944 --> 00:24:40,779
牠衝向我,用嘴巴咬住

335
00:24:40,846 --> 00:24:41,746
真的非常龐大

336
00:24:41,813 --> 00:24:44,049
路易斯是我的好友之一

337
00:24:45,283 --> 00:24:47,385
動了五小時手術

338
00:24:47,786 --> 00:24:51,823
才將斷裂的肌腱和動脈修補好

339
00:24:52,757 --> 00:24:53,992
我當時大量出血

340
00:24:54,025 --> 00:24:55,660
血像是從水管一樣大量噴出

341
00:24:55,727 --> 00:24:58,597
{\an8}大概有六條鯊魚靠過來

342
00:24:58,663 --> 00:25:00,665
圍著我不斷繞圈

343
00:25:11,142 --> 00:25:14,145
調查人員檢視這次攻擊時

344
00:25:14,179 --> 00:25:17,582
很快就發現一個預期外的線索

345
00:25:20,952 --> 00:25:23,021
艾夫羅遭攻擊的地點

346
00:25:23,054 --> 00:25:25,824
距離納普敦紀念礁不到四浬

347
00:25:26,958 --> 00:25:30,128
那是人類設立過最大的人工魚礁

348
00:25:33,698 --> 00:25:36,167
從2007年開始

349
00:25:36,201 --> 00:25:40,205
就發現有數十條鯊魚在這裡出沒

350
00:25:41,206 --> 00:25:45,710
雙髻鯊,虎鯊和公牛鯊

351
00:25:47,178 --> 00:25:50,415
每年還有數千名潛水客造訪此地

352
00:25:52,250 --> 00:25:54,119
這不禁讓研究人員好奇

353
00:25:54,853 --> 00:25:58,490
人工魚礁是否會引來大型掠食性鯊魚

354
00:26:01,159 --> 00:26:03,261
使得像艾夫羅這類

355
00:26:03,395 --> 00:26:06,498
利用附近水域的人面臨危險

356
00:26:07,065 --> 00:26:10,702
艾芙莉表示,提到人工魚礁與鯊魚

357
00:26:10,735 --> 00:26:13,004
重要的是魚礁如何設計

358
00:26:13,805 --> 00:26:18,343
(理論:致命設計)

359
00:26:22,213 --> 00:26:24,249
設立人工魚礁後

360
00:26:24,316 --> 00:26:27,719
{\an8}確實能為多種魚類提供棲地

361
00:26:27,786 --> 00:26:30,755
而且不只是小型魚類

362
00:26:30,789 --> 00:26:34,926
也包括大型掠食者,例如鯊魚

363
00:26:37,062 --> 00:26:39,965
艾芙莉表示,金屬或岩石

364
00:26:39,998 --> 00:26:42,467
人造結構物沉入海中後

365
00:26:42,500 --> 00:26:46,338
很快就會形成海洋棲地

366
00:26:48,039 --> 00:26:50,775
這些結構物的生態功能

367
00:26:50,842 --> 00:26:53,511
依舊有很多未解之謎

368
00:26:53,545 --> 00:26:55,814
我們團隊正要開始抽絲剝繭

369
00:27:00,285 --> 00:27:03,221
不過我們握有證據顯示鯊魚

370
00:27:03,254 --> 00:27:06,057
確實比較喜歡在人工魚礁

371
00:27:06,091 --> 00:27:09,361
而不是天然魚礁附近出沒

372
00:27:10,795 --> 00:27:14,432
這個證據也適用在所有水下結構物

373
00:27:15,634 --> 00:27:18,370
在探究其中的原因時

374
00:27:18,436 --> 00:27:21,973
我們發現了非常有趣的事實

375
00:27:22,674 --> 00:27:25,910
在上舷側…看到了

376
00:27:28,813 --> 00:27:31,116
辦到了,太棒了

377
00:27:31,182 --> 00:27:32,417
(調查)

378
00:27:35,086 --> 00:27:38,323
在選擇布設何種人工魚礁時

379
00:27:38,390 --> 00:27:40,458
通常會考量它是否

380
00:27:40,525 --> 00:27:43,561
能對各種魚類帶來好處

381
00:27:43,628 --> 00:27:46,598
而通常構造物越是複雜

382
00:27:46,665 --> 00:27:50,201
就有越多鯊魚會來到這裡

383
00:27:52,737 --> 00:27:55,774
艾芙莉表示,吸引鯊魚的

384
00:27:55,807 --> 00:27:58,443
不僅是複雜度,還有高度

385
00:28:01,613 --> 00:28:05,817
我們發現的是越高的人工魚礁

386
00:28:05,850 --> 00:28:08,586
幾乎就像是摩天高樓一般

387
00:28:08,653 --> 00:28:11,656
會吸引各式各樣海洋生物過來

388
00:28:11,690 --> 00:28:14,592
通常也就包括鯊魚之類的大型掠食者

389
00:28:18,963 --> 00:28:20,865
我們還不知道為何礁石高度

390
00:28:20,899 --> 00:28:22,300
會是這麼重要的因素

391
00:28:22,333 --> 00:28:24,169
不過我們有幾種理論

392
00:28:24,235 --> 00:28:26,171
其中一個可能跟食物有關

393
00:28:29,274 --> 00:28:32,377
研究顯示,高結構物的周遭水域

394
00:28:32,410 --> 00:28:34,813
常含有豐富浮游生物

395
00:28:36,614 --> 00:28:41,653
這些繁生浮游生物吸引小型魚類過來

396
00:28:42,420 --> 00:28:45,590
這些小型魚類通常也是鯊魚的主食

397
00:28:47,392 --> 00:28:49,260
當結構物很高時

398
00:28:49,327 --> 00:28:53,898
就會匯聚許多閃亮的小型魚類餌球

399
00:28:53,932 --> 00:28:56,901
剛好就是大型掠食者的最佳獵物

400
00:28:59,971 --> 00:29:01,906
如果這裡有鯊魚的食物

401
00:29:01,940 --> 00:29:03,608
或許就會吸引牠們

402
00:29:03,675 --> 00:29:05,410
聚集在這類高聳結構物周遭

403
00:29:11,015 --> 00:29:14,753
看來似乎這類人工魚礁的設計

404
00:29:14,819 --> 00:29:16,721
如果特別直立高聳

405
00:29:16,755 --> 00:29:20,291
就越能提供鯊魚一個絕佳獵食場

406
00:29:21,993 --> 00:29:24,129
因為條件絕佳,艾芙莉認為

407
00:29:24,362 --> 00:29:26,965
鯊魚一生當中,不只會出現在一處

408
00:29:26,998 --> 00:29:29,667
而是會出現在多處船骸附近

409
00:29:34,305 --> 00:29:36,374
(分析)

410
00:29:39,210 --> 00:29:43,648
我們認為鯊魚會以這類人造結構物

411
00:29:43,681 --> 00:29:46,117
做為在兩點間移動時的休息處

412
00:29:47,619 --> 00:29:50,688
有趣的是,如果你是大型掠食者

413
00:29:50,722 --> 00:29:54,225
並且沿著海洋中特定路線巡游

414
00:29:54,259 --> 00:29:57,896
通常都會經過一整片荒蕪的砂質海床

415
00:30:01,065 --> 00:30:04,369
這些棲地提供了一處綠洲

416
00:30:04,435 --> 00:30:08,573
讓掠食者能停留覓食或休息

417
00:30:12,610 --> 00:30:15,413
如果鯊魚利用船骸和其他結構物

418
00:30:15,446 --> 00:30:17,315
當做海洋的中繼休息點

419
00:30:17,515 --> 00:30:20,151
調查人員好奇牠們是否會經常回來?

420
00:30:21,319 --> 00:30:25,924
將這附近的潛水客和魚群置於危險中

421
00:30:27,725 --> 00:30:30,528
麻州鱈魚角發生的案例

422
00:30:30,562 --> 00:30:33,832
或許能為調查人員提供答案

423
00:30:37,502 --> 00:30:40,905
又是鱈魚角另一個夏季晴天

424
00:30:40,939 --> 00:30:43,208
目前正值旅遊旺季

425
00:30:47,312 --> 00:30:48,613
(US271號案件)

426
00:30:48,813 --> 00:30:50,949
(麻州鱈魚角,2012年7月)

427
00:30:52,784 --> 00:30:56,487
離岸不遠有一處140年老船骸

428
00:30:57,522 --> 00:30:59,591
50歲的克里斯梅爾

429
00:30:59,624 --> 00:31:01,860
和兒子杰傑來此度假

430
00:31:03,695 --> 00:31:04,729
爸,我們要去哪裡?

431
00:31:05,597 --> 00:31:07,966
到沙洲那裡,走吧

432
00:31:14,405 --> 00:31:17,542
他們游到離岸400碼遠

433
00:31:17,575 --> 00:31:19,577
去尋找一處沙洲

434
00:31:28,653 --> 00:31:29,687
這裡的水有多深?

435
00:31:31,089 --> 00:31:33,725
不知道,等一下

436
00:31:37,228 --> 00:31:44,168
他們不知道的是自己已深入險境

437
00:31:54,646 --> 00:31:57,515
兒子杰傑只能在水面枯等

438
00:32:05,156 --> 00:32:10,795
這裡太深了,碰不到底,我們回去

439
00:32:14,966 --> 00:32:16,067
突然間

440
00:32:19,771 --> 00:32:20,705
爸

441
00:32:23,942 --> 00:32:27,745
一條大白鯊咬住克里斯的左腳踝

442
00:32:27,812 --> 00:32:31,349
爸…

443
00:32:31,416 --> 00:32:32,417
克里斯奮力一踢

444
00:32:35,553 --> 00:32:36,721
終於掙脫了鯊口

445
00:32:46,030 --> 00:32:48,099
但是鯊魚卻不見得肯放棄

446
00:32:59,344 --> 00:33:02,947
爸…快點,爸,快點

447
00:33:02,981 --> 00:33:05,249
大家快來幫忙

448
00:33:05,316 --> 00:33:09,854
回到岸上後,才看得出他的傷勢之重

449
00:33:15,626 --> 00:33:18,329
克里斯有多處撕裂傷

450
00:33:18,396 --> 00:33:20,999
神經損傷和肌腱斷裂

451
00:33:24,335 --> 00:33:26,604
克里斯的事件震驚了全球

452
00:33:28,673 --> 00:33:30,675
{\an8}麻州海域已有76年

453
00:33:30,708 --> 00:33:32,810
{\an8}沒發生鯊魚攻擊事件

454
00:33:34,078 --> 00:33:38,483
葛瑞格史葛莫博士在鱈魚角研究鯊魚

455
00:33:38,516 --> 00:33:42,086
他說克里斯的事件只是個開端

456
00:33:43,454 --> 00:33:44,789
克里斯事件後

457
00:33:44,822 --> 00:33:47,358
發生了更多起這類事故

458
00:33:47,725 --> 00:33:49,227
Ｋ艇和鯊魚…

459
00:33:52,330 --> 00:33:53,865
我的天啊

460
00:33:54,599 --> 00:33:55,900
立槳和鯊魚…

461
00:33:55,967 --> 00:33:58,202
看到了,在我這裡

462
00:33:58,236 --> 00:34:02,673
還有其他兩起攻擊人類的意外

463
00:34:04,876 --> 00:34:07,478
自2012年起,人們在鱈魚角

464
00:34:07,879 --> 00:34:09,881
目擊到數百次大白鯊出沒

465
00:34:09,914 --> 00:34:12,450
至少有五人遭受攻擊

466
00:34:13,751 --> 00:34:18,856
這讓當地居民突然了解到

467
00:34:18,890 --> 00:34:21,893
這裡不僅開始有大白鯊出現

468
00:34:21,959 --> 00:34:23,428
而且還會攻擊人類

469
00:34:24,996 --> 00:34:26,230
我們有非常多疑問

470
00:34:26,264 --> 00:34:28,599
首先是,鯊魚為何在這裡出現?

471
00:34:28,633 --> 00:34:31,169
我非常希望能得到答案

472
00:34:32,036 --> 00:34:34,472
調查人員爭相想要去了解

473
00:34:34,505 --> 00:34:36,774
大白鯊為何會侵擾人類

474
00:34:38,609 --> 00:34:40,745
他們很快就發現了一大可能

475
00:34:42,747 --> 00:34:49,120
鱈魚角附近有非常多的船骸

476
00:34:49,153 --> 00:34:53,324
鱈魚角在歷史上就是船隻的海上墳場

477
00:34:55,359 --> 00:34:58,396
這裡有上千處的船骸

478
00:34:58,429 --> 00:35:03,301
其中有部分離岸很近,位於極淺水域

479
00:35:03,334 --> 00:35:06,671
這些船骸會吸引各種海洋生物聚集

480
00:35:06,704 --> 00:35:08,206
從最小的魚

481
00:35:08,272 --> 00:35:12,643
到大型掠食性魚類,包括大白鯊

482
00:35:13,478 --> 00:35:17,181
調查人員已知鯊魚很可能利用船骸

483
00:35:17,215 --> 00:35:19,984
做為覓食或休息的中繼點

484
00:35:21,085 --> 00:35:23,654
問題是同一條鯊魚

485
00:35:23,688 --> 00:35:28,025
會不會每年都回來這些船骸?

486
00:35:28,860 --> 00:35:31,662
葛瑞認為有這種可能

487
00:35:32,730 --> 00:35:37,668
(理論:甜蜜家園)

488
00:35:41,472 --> 00:35:43,641
我們知道大型遠洋鯊魚

489
00:35:43,674 --> 00:35:46,210
雖然一年中絕大部分時間

490
00:35:46,277 --> 00:35:47,745
都是在離岸數千浬外

491
00:35:47,778 --> 00:35:49,947
卻會因豐富食物而短時造訪船骸

492
00:35:51,749 --> 00:35:54,018
葛瑞深入研究他的追蹤數據

493
00:35:56,354 --> 00:35:58,589
我們在大量的大白鯊身上做標記

494
00:35:58,623 --> 00:36:00,191
好記錄同一個體是否會

495
00:36:00,224 --> 00:36:03,961
年復一年定期回到鱈魚角

496
00:36:04,795 --> 00:36:08,533
甚至也在船骸上安裝聽音器

497
00:36:08,599 --> 00:36:11,269
記錄到有一定數量的大白鯊

498
00:36:11,302 --> 00:36:12,737
會造訪這些船骸

499
00:36:12,770 --> 00:36:17,842
我認為如果船骸是好的獵食場

500
00:36:17,875 --> 00:36:19,844
那麼某條或特定幾條大白鯊

501
00:36:19,877 --> 00:36:21,045
確實很有可能會

502
00:36:21,078 --> 00:36:23,247
年復一年回到這裡來

503
00:36:24,815 --> 00:36:26,050
如果這是真的

504
00:36:26,083 --> 00:36:28,786
攻擊克里斯的那條大白鯊

505
00:36:28,819 --> 00:36:32,256
可能就正是在年度回去船骸的路上

506
00:36:33,291 --> 00:36:34,325
爸

507
00:36:34,392 --> 00:36:37,361
研究人員需要更多證據來確定

508
00:36:37,395 --> 00:36:38,930
獵物豐富的船骸

509
00:36:38,963 --> 00:36:41,599
是否會持續吸引鯊魚前來

510
00:36:42,567 --> 00:36:45,102
位於千里之外的巴哈馬群島

511
00:36:45,136 --> 00:36:47,872
有一項研究或許能提供答案

512
00:36:48,606 --> 00:36:49,840
那條馬上就衝了過來

513
00:36:53,411 --> 00:36:54,879
我們出發了

514
00:36:59,650 --> 00:37:01,719
比米尼島鯊魚實驗室的麥特史穆嘉

515
00:37:01,786 --> 00:37:02,820
正要進行一項實驗

516
00:37:02,853 --> 00:37:06,624
確認鯊魚是否能記得某處獵食場

517
00:37:06,657 --> 00:37:08,526
並定期回到這裡

518
00:37:10,995 --> 00:37:15,833
沿岸有許多船骸都是鯊魚的主要棲地

519
00:37:17,301 --> 00:37:20,204
{\an8}我們想確認的是鯊魚

520
00:37:20,238 --> 00:37:23,608
{\an8}是否會定期回來這裡獵食

521
00:37:25,376 --> 00:37:27,778
這背後的涵義相當深遠

522
00:37:28,813 --> 00:37:33,451
(鯊魚測試:巴哈馬群島比米尼島)

523
00:37:34,819 --> 00:37:36,787
為了驗證這點

524
00:37:36,821 --> 00:37:42,026
麥特選定一處檸檬鯊出沒的紅樹林區

525
00:37:42,059 --> 00:37:45,563
同行的包括研究員索菲亞艾蒙斯

526
00:37:45,596 --> 00:37:48,232
和助理伊萊賈和艾琳娜

527
00:37:50,167 --> 00:37:53,571
一個月前,實驗室在這處紅樹林的

528
00:37:53,604 --> 00:37:56,040
一具無線電接收機旁布餌

529
00:37:56,807 --> 00:37:59,443
每次有標記檸檬鯊經過時

530
00:37:59,477 --> 00:38:01,545
接收機都會記錄下來

531
00:38:03,014 --> 00:38:05,783
團隊在其後一個月裡每天回來

532
00:38:07,084 --> 00:38:13,658
在同一地點,同一時段布放等量餌食

533
00:38:15,726 --> 00:38:20,831
我們想知道同一條鯊魚會不會

534
00:38:20,865 --> 00:38:23,434
每天在同樣時段回來這裡覓食?

535
00:38:27,605 --> 00:38:29,940
索菲亞,我們到定點,可以下錨了

536
00:38:32,343 --> 00:38:36,080
今天是團隊最後一次布餌

537
00:38:36,881 --> 00:38:40,851
小聲靠近,看是否有檸檬鯊等著我們

538
00:38:41,652 --> 00:38:45,489
並確認實驗開始時出現的檸檬鯊

539
00:38:45,556 --> 00:38:47,858
是不是有再次回來

540
00:38:48,759 --> 00:38:50,094
開始布餌吧

541
00:39:04,842 --> 00:39:08,412
沒過多久,鯊魚就出現了

542
00:39:09,046 --> 00:39:10,715
你們看,鯊魚出現了

543
00:39:14,752 --> 00:39:17,688
牠們應該早就在這裡等我們了

544
00:39:19,490 --> 00:39:23,194
一群幼檸檬鯊爭相衝向餌食管

545
00:39:23,227 --> 00:39:25,129
有一條特別快,你們看

546
00:39:30,267 --> 00:39:32,970
剛開始布餌時,就有鯊魚出現

547
00:39:33,003 --> 00:39:35,106
不過牠們要花一點時間

548
00:39:35,139 --> 00:39:37,074
{\an8}也許5或10分鐘才會吃餌

549
00:39:37,475 --> 00:39:38,909
{\an8}現在真的是馬上衝過來

550
00:39:41,011 --> 00:39:42,880
根據追蹤數據

551
00:39:43,581 --> 00:39:46,283
索菲亞說這些鯊魚中有的是

552
00:39:46,317 --> 00:39:48,886
一個月前就出現過的個體

553
00:39:49,620 --> 00:39:51,489
我記得裡面有幾條

554
00:39:51,522 --> 00:39:53,724
從第一天就出現在這裡

555
00:39:53,758 --> 00:39:58,462
這表示檸檬鯊能記得位置並定期回來

556
00:39:59,530 --> 00:40:02,166
只要某個地方有好東西

557
00:40:02,199 --> 00:40:04,769
例如穩定的食物來源

558
00:40:06,437 --> 00:40:08,973
看到同樣的鯊魚個體出現

559
00:40:09,039 --> 00:40:11,041
表示這些檸檬鯊

560
00:40:11,075 --> 00:40:12,476
具有很高的棲地忠誠度

561
00:40:12,510 --> 00:40:14,412
牠們會不斷重複利用

562
00:40:14,445 --> 00:40:16,747
棲地附近能夠獲益的地點

563
00:40:19,550 --> 00:40:21,719
但這也適用在大型鯊魚

564
00:40:21,752 --> 00:40:24,088
例如鱈魚角的大白鯊嗎?

565
00:40:24,121 --> 00:40:28,092
這非常有可能也適用在其他鯊種上

566
00:40:28,125 --> 00:40:30,861
牠們能牢記穩定的食物來源

567
00:40:30,895 --> 00:40:34,532
不管是位在河口,礁石或船骸都一樣

568
00:40:37,601 --> 00:40:39,336
葛瑞格史葛莫博士

569
00:40:39,370 --> 00:40:41,806
對於這個實驗結果並不意外

570
00:40:42,606 --> 00:40:44,742
(分析)

571
00:40:46,644 --> 00:40:49,046
任何能提供食物和保護的棲地

572
00:40:49,079 --> 00:40:51,315
都是鯊魚會不斷回去的地點

573
00:40:51,382 --> 00:40:52,850
其中當然包括船骸

574
00:40:54,218 --> 00:40:58,055
{\an8}最好的例子就是北卡州外海的錐齒鯊

575
00:40:58,088 --> 00:41:00,024
{\an8}會在往後的六年內

576
00:41:00,057 --> 00:41:01,892
不斷回到同一地點

577
00:41:01,926 --> 00:41:07,364
這是超強的記憶力,能夠在數千浬外

578
00:41:07,398 --> 00:41:10,000
導航回到原點,真的令人訝異

579
00:41:13,204 --> 00:41:15,873
既然鯊魚擁有驚人記憶力

580
00:41:15,906 --> 00:41:18,142
或許船骸正是鱈魚角

581
00:41:18,209 --> 00:41:21,312
每年有大量大白鯊湧入的主因

582
00:41:22,046 --> 00:41:25,015
也能解釋攻擊克里斯梅爾的鯊魚

583
00:41:25,082 --> 00:41:26,750
為何會在那裡出現

584
00:41:29,753 --> 00:41:31,789
但葛瑞認為這不是主因

585
00:41:35,960 --> 00:41:39,830
雖然大白鯊確實造訪鱈魚角周遭船骸

586
00:41:39,897 --> 00:41:42,733
我認為還有一種驅動力

587
00:41:42,766 --> 00:41:44,735
能完全勝過船骸

588
00:41:44,768 --> 00:41:47,471
吸引大白鯊的這一點小誘因

589
00:41:49,039 --> 00:41:52,042
那就是這個區域出現越來越多的海豹

590
00:41:52,076 --> 00:41:53,844
這才是吸引鯊魚的主因

591
00:41:57,414 --> 00:42:01,185
灰海豹是大白鯊最愛的食物

592
00:42:05,723 --> 00:42:07,525
過去50年來

593
00:42:07,591 --> 00:42:10,895
鱈魚角的海豹數量急遽增加

594
00:42:12,429 --> 00:42:14,431
海豹從幾乎絕跡

595
00:42:14,465 --> 00:42:16,433
到重回這片海域

596
00:42:16,500 --> 00:42:18,602
吸引了大量鯊魚來到近岸

597
00:42:18,669 --> 00:42:20,938
攻擊克里斯梅爾的鯊魚

598
00:42:20,971 --> 00:42:22,973
只是正好在這裡獵食

599
00:42:23,374 --> 00:42:26,010
我個人認為那條鯊魚因為困惑

600
00:42:26,076 --> 00:42:29,179
所以想試探一下他到底是不是海豹

601
00:42:30,915 --> 00:42:31,916
爸

602
00:42:33,384 --> 00:42:36,387
幸運的是,這次只是輕咬

603
00:42:36,420 --> 00:42:38,222
並不是致命攻擊

604
00:42:42,526 --> 00:42:45,596
船骸造成這些掠食者的攻擊

605
00:42:45,629 --> 00:42:47,865
似乎不是個能成立的理論

606
00:42:48,566 --> 00:42:53,070
但還是有某種因素吸引鯊魚來到船骸

607
00:42:53,504 --> 00:42:55,973
並造成危險的人鯊遭遇

608
00:42:58,208 --> 00:43:00,411
吸引鯊魚來到船骸的不是人類

609
00:43:00,477 --> 00:43:03,013
也不是船骸結構的本身

610
00:43:03,047 --> 00:43:05,783
而是居住在船骸周遭的物種

611
00:43:05,816 --> 00:43:07,618
將鯊魚吸引過來

612
00:43:09,219 --> 00:43:11,355
(結論)

613
00:43:12,856 --> 00:43:15,960
不管是近岸的水下結構物

614
00:43:16,627 --> 00:43:19,563
或者是沉入大海的船骸

615
00:43:20,798 --> 00:43:23,033
鯊魚都能找到牠們的藏身處

616
00:43:23,901 --> 00:43:26,570
人工魚礁和船骸都能成為

617
00:43:26,604 --> 00:43:29,440
適合大型掠食者的避難所

618
00:43:30,541 --> 00:43:32,710
有些鯊魚會利用船骸做為休息處

619
00:43:34,445 --> 00:43:37,581
其他的可能會來此為產前補充體力

620
00:43:38,415 --> 00:43:40,117
{\an8}這些生產地

621
00:43:40,150 --> 00:43:42,720
{\an8}不管是船骸或者某種海洋避難所

622
00:43:42,753 --> 00:43:44,088
{\an8}都需要更深入的研究

623
00:43:45,189 --> 00:43:48,425
{\an8}無論原因為何,有一件事是確定的

624
00:43:49,126 --> 00:43:50,928
{\an8}鯊魚出現的地方

625
00:43:50,995 --> 00:43:54,131
{\an8}就表示那個環境非常繁盛

626
00:43:56,066 --> 00:43:58,235
{\an8}這裡的結構能孕育出生命

627
00:43:58,702 --> 00:44:01,572
{\an8}只要船骸能為整個食物鏈

628
00:44:01,639 --> 00:44:05,843
{\an8}提供健康棲地,鯊魚就一定會出現

629
00:44:07,811 --> 00:44:09,580
{\an8}謝謝觀賞