Schistura sirindhornae, Crown Scaly Stream Loach

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相关物种
- 物种在
  Schistura
- 物种在
  Nemacheilidae
- - 分类 -
- Nemacheilidae
- Cypriniformes
- Teleostei
- Chordata
- Animalia

Schistura sirindhornae Suvarnaraksha, 2015

Crown Scaly Stream Loach

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drawing shows typical species in Nemacheilidae.

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Cypriniformes (Carps) > Nemacheilidae (Brook loaches)
Etymology: Schistura: Greek, schizein = to divide + Greek, oura = tail; an allusion to forked caudal fins (Ref. 45335); sirindhornae: The species epithet honors Her Royal Highness Princess Maha Chakri Sirindhorn for her 60th birthday anniversary, her biodiversity conservation projects, several projects in education and protein source security for rural communities, and many projects located in Nan Province, the type locality of this species (Ref. 102608).
Eponymy: Princess Maha Chakri Sirindhorn (d: 1955) of Thailand was honoured in the loach’s binomial for her 60th birthday anniversary, as well as for her biodiversity conservation projects, and many projects located in Nan Province, the type locality of this [...] (Ref. 128868), visit book page.

Environment: milieu / climate zone / depth range / distribution range 生态学

; 淡水底中水层性; pH range: ? - 6.5. ? - 18°C (Ref. 102608)

分布国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Asia: tributaries of the upper Nan River basin in Nan Province, Thailand.

大小 / 重量 / 年龄

Maturity: L_m ? range ? - ? cm
Max length : 7.9 cm SL 雄鱼/尚未辨别雌雄; (Ref. 102608); 7.9 cm SL (female)

简单描述检索表 | 型态特徵 | 形态测量图

臀鳍软条: 8; 脊椎骨: 30. Schistura sirindhornae is distinguished from all other congeners in having overlapping scales on the entire body similar to the scales of balitorids, transparent scales on the belly and thorax, a lateral-line canal that is similar to that of most cyprinids and balitorids in being present across the entire lateral-line surface of the scale instead of being represented only by a pore, and a unique color pattern of irregular brown bars on the back and side of the faint yellow-orange body, a bright triangular orange mark on the occiput, an orange crown-shaped mark between the eyes, an uninterrupted black mark along the base of the dorsal fin, a crescent-shaped bar on the base of the caudal fin, and bright iridescent orange areas on the upper and lower extremities of the caudal-fin base. Scales are generally larger than those of other nemacheilids with a larger focal area (Ref. 102608).

Found in upland areas on the bottoms of cool, clear, flowing streams with pools and forest canopy. Collected between 721-1,155 m above sea level in steep streams in Huay Nampan and tributaries of the Nan River basin. At the time of sampling during the start of the hot-dry season, Huay Nampan was about 2-4 m wide and 0.2-0.5 m deep; water volume might be higher during the rainy season. Encountered only in shaded areas and was absent from light-exposed open areas and lowlands. Substrate was composed mainly of stones, bedrock, and some sand and gravel in small pools. The upper stream bank was covered by large native trees with more than 90% canopy cover and at the time of sampling, the water was clear, and the temperature was 18.4°C (air temperature 22.5°C), conductivity 2.6 S/ m, and pH 6.5. Collected together with Schistura menanensis (Nemacheilidae) and Oreoglanis suraswadii (Sisoridae). Gut content analysis indicated that this species feeds mainly on aquatic insect larvae (Ref. 102608).

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

Suvarnaraksha, A., 2015. A new species of highland loach, Schistura sirindhornae, from the upper Chao Phraya River basin, Thailand (Pisces: Ostariophysi: Nemacheilidae). Zootaxa 3962(1):158-170. (Ref. 102608)

世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)

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CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00871 (0.00376 - 0.02016), b=3.01 (2.81 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

营养阶层 (Ref. 69278): 3.0 ±0.3 se; based on size and trophs of closest relatives

回复力 (Ref. 120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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