分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Perciformes/Cottoidei (Sculpins)
鮋形目 (Sculpins) >
Cottidae (Sculpins)
杜父魚科 (Sculpins)
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335); specus: The specific epithet 'specus' means a cave or cavern, in reference to the primary habitat in caves.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性.
North America: Bois Brule drainage in eastern Missouri, USA.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 10.3 cm SL 雄魚/尚未辨別雌雄; (Ref. 92978)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 7 - 8; 背的軟條 (總數) : 16 - 18; 臀鰭軟條: 12 - 14. Distinguished from all congeners, except Cottus carolinae, Cottus chattahoochee, Cottus confusus, Cottus hubbsi, and some populations of Cottus beldingii by the complete lateral line ending near the base of the caudal fin and dorsal fins not usually connected. Cottus specus only occupies geographically adjacent to C. carolinae and can be distinguished by a reduction in eye size: 1-5% SL in 98% of specimens (1-4% in 85% of specimens) versus eye size 5-9% of SL in 100% of specimens. Cottus specus possesses a significant increase in cephalic lateralis pore size, 92% above 500 mm (vs. 100% in C. carolinae between 200-500 mm) (Ref. 92978).
Occurs in cave streams as well as their resurgences, primarily over gravel, cobble, or bedrock bottom (Ref. 92978).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Builds nests under cobble or pebble substrate. Lays adhesive eggs, in a clump, that are attached to the underside of a rock (Ref. 92978).
Adams, G.L., B.M. Burr, J.L. Day and D.E. Starkey, 2013. Cottus specus, a new troglomorphic species of sculpin (Cottidae) from southeastern Missouri. Zootaxa 3609(5):484-494. (Ref. 92978)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
人類使用
漁業: 沒有興趣
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00794 (0.00386 - 0.01635), b=3.12 (2.95 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
