斑紋隱小鱂
斑紋隱小鱂,又稱北美紅樹林鱂魚(mangrove killifish),為輻鰭魚綱鯉齒目鰕鱂亞目鰕鱂科的其中一種,為熱帶淡水魚,分布於加勒比海沿岸,自美國東南部的佛羅里達至巴西等地。棲息在泥底質的河口區、沼澤濕地、溝渠、水塘淡水及半鹹水水域。此魚能忍受低溶氧環境,體長可達7.5公分,可做為觀賞魚。[1]
斑紋隱小鱂 | |
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科学分类 | |
界: | 动物界 Animalia |
门: | 脊索动物门 Chordata |
纲: | 綱 Actinopteri |
目: | 鳉形目 Cyprinodontiformes |
科: | 鰕鱂科 Aplocheilidae |
属: | 隐小鱂属 Kryptolebias |
种: | 斑紋隱小鱂 K. marmoratus |
二名法 | |
Kryptolebias marmoratus Poey, 1880 | |
異名 | |
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斑紋隱小鱂性成熟時的體長約為1.7公分。此魚性別含雌雄同體與公魚兩種。其中,雌雄同體的個體可自體受精產生下一代。公魚則又可再分為初級公魚與次級公魚。初級公魚指性成熟時即為公魚,目前研究顯示若孵化期間溫度低於攝氏20度,即可能產生初級公魚。而次級公魚則指個體原先為雌雄同體,在雌性器官退化後即變為公魚。[2]
此魚在野外多躲藏於濕枝葉下方或陸生蟹的巢洞中[3];而離開水體的個體,其鰓蓋會停止運動,藉由擴張表皮與魚鰭上的毛細血管網來呼吸。[4]
在實驗室觀察中顯示,兩隻斑紋隱小鱂相遇時會表現明顯的攻擊性及打鬥行為,且其攻擊性及打鬥行為已被證實會受前次打鬥獲勝/落敗經驗所影響(勝者效應/敗者效應)。[5]
參考資料
- Taylor, D. S. (2012). "Twenty-Four Years in the Mud: What Have We Learned About the Natural History and Ecology of the Mangrove Rivulus, Kryptolebias marmoratus?" Integrative and Comparative Biology.
- Taylor, D. S. 2001. "Physical variability and fluctuating asymmetry in heterozygous and homozygous populations of Rivulus marmoratus." Canadian journal of zoology
- Taylor, D. S. 1992. "Diet of the killifish Rivulus marmoratzu collected from land crab burrows, with further ecological notes." Environmental Biology of Fishes
- Grizzle, J. M., & Thiyagarajah, A. 1987. "Skin histology of Rivulus ocellatus marmoratus: apparent adaptation for aerial respiration." Copeia,
- Hsu, Y. & Wolf, L. L. 1999. "The winner and loser effect: integrating multiple experiences." Animal Behaviour.
參考文獻
- Froese, R. & Pauly, D. (eds.) (2014). Kryptolebias marmoratus. FishBase. Version 2014-08.
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