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-- 作者: a7537537533
請問一下七星鱧是台灣原生的魚種嗎???
-- 作者: 古語森 七星鱧跟鮕呆都不是台灣的原生種 原生的鱧科有
-- 作者: 台灣白魚痴 古語森 兄:我不知道你的台灣原生定義是什麼.不過溪鱧在世界上只有一屬一種 屬於溪鱧科 而鱧科又是另外一屬兩種截然不同 台灣原生鱧科木前已知只有斑鱧以及月鱧(七星鱧).生態環境也不同 溪鱧喜歡棲息於河口未污染的河川 小溪中下游屬兩側洄游型魚類 而鱧科魚類喜歡棲息池沼 野塘.生存環境也不同.食性也不同喔!
-- 作者: 古語森 我忘了溪鱧是溪鱧科不是鱧科的....XD 我本來也以為七星鱧是原生種.......
-- 作者: 台灣白魚痴
[這篇文章最後由台灣白魚痴在 2007/02/02 11:40am 第 1 次編輯]
-- 作者: cscr
[這篇文章最後由cscr在 2006/06/18 08:06am 第 2 次編輯] In the cited webpage it seems that the photos denoting Channa striata & Channa asiatica actually all represent the former species - the exotic snakehead C. striata. After browsing that website, I find that it is performed by (the teachers of - I guess ) an elementary school to serving to be teaching materials for their students. Although we should not expect such work to be as precise and accurate as an academic one - an overcritical request, yet there is no reason to be optimistic in the future of conservation if such erroneous konwledge is widely accepted and propagated as a general belief. It is true that the records of the collection of the two snakehead (C. maculata & C. asiatica) can be traced back to an paper published more than 100 years ago(Jordan and Evermann 1902), and they were traditionally deemed to be indigenous to Taiwan since then. But contrary to what is taken for granted as that view, some official work does advocate that they are not autochthonous species in Taiwan, please refer to this link: http://fisc.er.usgs.gov/Snakehead_circ_1251/ Whetther they are indigenous or not, the phenomenon that the populations of C. asiatica & C. maculata in Taiwan are both pervasively and deterioratingly replaced by their introduced congeners (C. striata & C. micropeltes) is a genuinely ongoing tragedy !
-- 作者: 尖嘴仔車栓子
魚痴兄~賜你一票~順便也批評一下政府有太多ㄉ不專業~ PS:偶愛台灣~
-- 作者: Quota
cscr提供了另外一個思考的方向
-- 作者: cscr
[這篇文章最後由cscr在 2006/07/08 01:42am 第 3 次編輯] On the other hand, we still have to deliberately consider the possibility of anthropogenic dispersal that might also enable these "air-breathing tough guys" to be transported across the Formosan Strait onto this island before they colonize there by natural forces. This hypothetical process is not implausible, at least on account of the sturdiness of snakeheads which are well-known for their survival without water for a couple of days if kept moist. Thus the feasibility that these two snakehead species were introduced by ancient immigrants from mainland China in the past cannot be excluded------ but those who contend this vew must provide more convincing evidence and congently explain in order to win pupular support for it ! otherwise I still esteem it to be a unproved viewpoint, albeit intriguing.
-- 作者: randolph20
東部有鱧魚ㄇ? 大部份channa網頁把台灣劃作引入區
-- 作者: 台灣白魚痴
[quote][b]下面引用由[u]randolph20[/u]在 [i]2007/01/06 01:48pm[/i] 發表的內容:[/b]
-- 作者: randolph20
[這篇文章最後由randolph20在 2007/01/14 07:19pm 第 1 次編輯]
-- 作者: 台灣白魚痴
[這篇文章最後由台灣白魚痴在 2007/01/19 11:48pm 第 1 次編輯]
-- 作者: cscr
[這篇文章最後由cscr在 2007/01/20 06:27pm 第 5 次編輯] Discussing a species' natural distributional range cannot be relied on merely intuituion! What was the role of geological events (ie. glaciation or orogeny) playing in the occurrence, dispersal of freshwater fishes? How did these factors work to constitute the present-day pattern? Can the fact that a species not found in regions easterly to CMR be use as evidence of its non-indigenous status on this island? Hope you could have a better grasp of , or a lucid mind in evaluating how freshwater fishes might disperse to Taiwan! Both biotic & abiotic actors should be incoporated in order to attain a better, panoramic view!
-- 作者: 超靈藝
對ㄚ!七星鱧是尾巴有個眼,臺灣正土的手術魚,數量少體型也不大!
-- 作者: randolph20
I agree with u at that point
-- 作者: 蝦蝦
原生鱧科...頭孔....短塘...無孔...棕塘鱧...
-- 作者: 豪
嘉義縣政府貼的七星鱧(鮕呆)怎麼看起來不太像七星鱧呢
-- 作者: ljkyeh
幼魚若體型差異較大要隔離,免得大食小 !
-- 作者: 蝦蝦 圖片上是7星鱧無誤
-- 作者: ljkyeh 復育成功 魚苗送你領養 訊息分享:
-- 作者: 老方
[這篇文章最後由老方在 2007/06/21 08:13pm 第 3 次編輯]
-- 作者: randolph20
http://fisc.er.usgs.gov/Snakehead_circ_1251/html/channa_asiatica.html
-- 作者: sapphire
[quote][b]下面引用由[u]古語森[/u]在 [i]2006/06/17 12:41pm[/i] 發表的內容:[/b]
-- 作者: sapphire
[quote][b]下面引用由[u]老方[/u]在 [i]2007/06/17 10:00pm[/i] 發表的內容:[/b] 阿本仔引進的.應該是美洲的大肚魚吧.因為它是卵胎生(其實也算卵生,不過是在母體內孵化)
-- 作者: 老方
我又去函行政院特有生物研究保育中心.得到的回覆是依據學者著作
-- 作者: randolph20
所以農委會跟特有生物中心的說詞相互矛盾
-- 作者: abbab 請問要如何繁殖啊? 附圖是我養的[UploadFile=GD_1182966847.jpg]
-- 作者: berlim111
[quote][b]下面引用由[u]豪[/u]在 [i]2007/06/12 11:05am[/i] 發表的內容:[/b]
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