Pelagic-benthic resource polymorphism inSchizopygopsis thermalisHerzenstein 1891 (Pisces, Cyprinidae) in a headwater lake in the Salween River system on the Tibetan Plateau
Resource polymorphism is a ubiquitous phenomenon in vertebrates and may represent a critical intermediate stage in speciation. Freshwater lakes in high-altitude areas represent a natural system for understanding resource polymorphism in fishes benefiting from diverse lacustrine environments and spec...
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Language: | English |
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WILEY
2020
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Online Access: | http://ir.ihb.ac.cn/handle/342005/38457 http://ir.ihb.ac.cn/handle/342005/38458 https://doi.org/10.1002/ece3.6470 |
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ftchinacadsciihb:oai:ir.ihb.ac.cn:342005/38458 2023-05-15T18:10:08+02:00 Pelagic-benthic resource polymorphism inSchizopygopsis thermalisHerzenstein 1891 (Pisces, Cyprinidae) in a headwater lake in the Salween River system on the Tibetan Plateau Qiao, Jialing Hu, Jiaxin Xia, Qin Zhu, Ren Chen, Kang Zhao, Jie Yan, Yunzhi Chu, Ling He, Dekui 2020-07-08 http://ir.ihb.ac.cn/handle/342005/38457 http://ir.ihb.ac.cn/handle/342005/38458 https://doi.org/10.1002/ece3.6470 英语 eng WILEY ECOLOGY AND EVOLUTION http://ir.ihb.ac.cn/handle/342005/38457 http://ir.ihb.ac.cn/handle/342005/38458 doi:10.1002/ece3.6470 diets growth morphological differentiation resource polymorphism Schizopygopsis thermalis Tibetan lake Environmental Sciences & Ecology Evolutionary Biology Ecology CHARR SALVELINUS-ALPINUS SCHIZOTHORACINE FISHES ECOLOGICAL SPECIATION TROPHIC POLYMORPHISM ADAPTIVE RADIATIONS ENERGY ALLOCATION DIVERGENCE MORPHOTYPES ADAPTATIONS 期刊论文 2020 ftchinacadsciihb https://doi.org/10.1002/ece3.6470 2020-12-04T01:07:07Z Resource polymorphism is a ubiquitous phenomenon in vertebrates and may represent a critical intermediate stage in speciation. Freshwater lakes in high-altitude areas represent a natural system for understanding resource polymorphism in fishes benefiting from diverse lacustrine environments and species-poor fish assemblages. We report resource polymorphism in a cyprinid fish,Schizopygopsis thermalis, in Lake Amdo Tsonak Co, a headwater lake in the upper Salween River system. Two discrete intraspecific morphs, planktivorous and benthivorous, were identified according to geometric morphometrics and traditional univariate linear measures. The planktivorous morph exhibits a longer head, longer upper and lower jaw, larger asymptotic standard length (L-infinity), lower growth rate (k), and higher growth performance index (phi) than the benthivorous morph. With respect to descriptive traits, the planktivorous morph possesses a large, terminal mouth and obvious mucus pores on the cheek and chin, while the benthivorous morph is characterized by a more inferior mouth with a sharpen horny edge on the lower jaw and unconspicuous mucus pores. The discrete pelagic-benthic resources and low interspecific competition in the lake system might drive the initial differentiation of the two morphs, and partial spatial reproductive isolation in breeding further maintains and reinforces the differences between them. Report Salvelinus alpinus Institute of Hydrobiology, Chinese Academy of Sciences: IHB OpenIR Ecology and Evolution 10 14 7431 7444 |
institution |
Open Polar |
collection |
Institute of Hydrobiology, Chinese Academy of Sciences: IHB OpenIR |
op_collection_id |
ftchinacadsciihb |
language |
English |
topic |
diets growth morphological differentiation resource polymorphism Schizopygopsis thermalis Tibetan lake Environmental Sciences & Ecology Evolutionary Biology Ecology CHARR SALVELINUS-ALPINUS SCHIZOTHORACINE FISHES ECOLOGICAL SPECIATION TROPHIC POLYMORPHISM ADAPTIVE RADIATIONS ENERGY ALLOCATION DIVERGENCE MORPHOTYPES ADAPTATIONS |
spellingShingle |
diets growth morphological differentiation resource polymorphism Schizopygopsis thermalis Tibetan lake Environmental Sciences & Ecology Evolutionary Biology Ecology CHARR SALVELINUS-ALPINUS SCHIZOTHORACINE FISHES ECOLOGICAL SPECIATION TROPHIC POLYMORPHISM ADAPTIVE RADIATIONS ENERGY ALLOCATION DIVERGENCE MORPHOTYPES ADAPTATIONS Qiao, Jialing Hu, Jiaxin Xia, Qin Zhu, Ren Chen, Kang Zhao, Jie Yan, Yunzhi Chu, Ling He, Dekui Pelagic-benthic resource polymorphism inSchizopygopsis thermalisHerzenstein 1891 (Pisces, Cyprinidae) in a headwater lake in the Salween River system on the Tibetan Plateau |
topic_facet |
diets growth morphological differentiation resource polymorphism Schizopygopsis thermalis Tibetan lake Environmental Sciences & Ecology Evolutionary Biology Ecology CHARR SALVELINUS-ALPINUS SCHIZOTHORACINE FISHES ECOLOGICAL SPECIATION TROPHIC POLYMORPHISM ADAPTIVE RADIATIONS ENERGY ALLOCATION DIVERGENCE MORPHOTYPES ADAPTATIONS |
description |
Resource polymorphism is a ubiquitous phenomenon in vertebrates and may represent a critical intermediate stage in speciation. Freshwater lakes in high-altitude areas represent a natural system for understanding resource polymorphism in fishes benefiting from diverse lacustrine environments and species-poor fish assemblages. We report resource polymorphism in a cyprinid fish,Schizopygopsis thermalis, in Lake Amdo Tsonak Co, a headwater lake in the upper Salween River system. Two discrete intraspecific morphs, planktivorous and benthivorous, were identified according to geometric morphometrics and traditional univariate linear measures. The planktivorous morph exhibits a longer head, longer upper and lower jaw, larger asymptotic standard length (L-infinity), lower growth rate (k), and higher growth performance index (phi) than the benthivorous morph. With respect to descriptive traits, the planktivorous morph possesses a large, terminal mouth and obvious mucus pores on the cheek and chin, while the benthivorous morph is characterized by a more inferior mouth with a sharpen horny edge on the lower jaw and unconspicuous mucus pores. The discrete pelagic-benthic resources and low interspecific competition in the lake system might drive the initial differentiation of the two morphs, and partial spatial reproductive isolation in breeding further maintains and reinforces the differences between them. |
format |
Report |
author |
Qiao, Jialing Hu, Jiaxin Xia, Qin Zhu, Ren Chen, Kang Zhao, Jie Yan, Yunzhi Chu, Ling He, Dekui |
author_facet |
Qiao, Jialing Hu, Jiaxin Xia, Qin Zhu, Ren Chen, Kang Zhao, Jie Yan, Yunzhi Chu, Ling He, Dekui |
author_sort |
Qiao, Jialing |
title |
Pelagic-benthic resource polymorphism inSchizopygopsis thermalisHerzenstein 1891 (Pisces, Cyprinidae) in a headwater lake in the Salween River system on the Tibetan Plateau |
title_short |
Pelagic-benthic resource polymorphism inSchizopygopsis thermalisHerzenstein 1891 (Pisces, Cyprinidae) in a headwater lake in the Salween River system on the Tibetan Plateau |
title_full |
Pelagic-benthic resource polymorphism inSchizopygopsis thermalisHerzenstein 1891 (Pisces, Cyprinidae) in a headwater lake in the Salween River system on the Tibetan Plateau |
title_fullStr |
Pelagic-benthic resource polymorphism inSchizopygopsis thermalisHerzenstein 1891 (Pisces, Cyprinidae) in a headwater lake in the Salween River system on the Tibetan Plateau |
title_full_unstemmed |
Pelagic-benthic resource polymorphism inSchizopygopsis thermalisHerzenstein 1891 (Pisces, Cyprinidae) in a headwater lake in the Salween River system on the Tibetan Plateau |
title_sort |
pelagic-benthic resource polymorphism inschizopygopsis thermalisherzenstein 1891 (pisces, cyprinidae) in a headwater lake in the salween river system on the tibetan plateau |
publisher |
WILEY |
publishDate |
2020 |
url |
http://ir.ihb.ac.cn/handle/342005/38457 http://ir.ihb.ac.cn/handle/342005/38458 https://doi.org/10.1002/ece3.6470 |
genre |
Salvelinus alpinus |
genre_facet |
Salvelinus alpinus |
op_relation |
ECOLOGY AND EVOLUTION http://ir.ihb.ac.cn/handle/342005/38457 http://ir.ihb.ac.cn/handle/342005/38458 doi:10.1002/ece3.6470 |
op_doi |
https://doi.org/10.1002/ece3.6470 |
container_title |
Ecology and Evolution |
container_volume |
10 |
container_issue |
14 |
container_start_page |
7431 |
op_container_end_page |
7444 |
_version_ |
1766182902086762496 |