分類 / 名前
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
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Percopsiformes (Trout-perches, pirate perches and cavefishes) >
Amblyopsidae (Cavefishes)
Etymology: agassizii: Named after the great naturalist Louis Agassiz (Ref. 10294).
Eponymy: Stephen Alfred Forbes (1844–1930) was an entomologist, self-taught naturalist, farmer and ecologist. [...] Jean Louis Rudolphe Agassiz (1807–1873) was a Swiss-American geologist, glaciologist and zoologist whose speciality was ichthyology. [...] (Ref. 128868), visit book page.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 底生の; 移住性ではない (Ref. 126106). Temperate; 39°N - 35°N
North America: portions of Tennessee, Kentucky, Illinois and Missouri, U.S.A.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 9.0 cm TL オス/雌雄の選別がない; (Ref. 10294); common length : 5.3 cm TL オス/雌雄の選別がない; (Ref. 12193); 最大記録サイズ: 3.00 年 (Ref. 10294)
簡単な記述
検索表 | 形態学 | 形態計測学
背鰭 (合計) : 9 - 11; 臀鰭: 9 - 11; 脊つい: 33 - 35. Scales minute and embedded. Pelvic fins absent. Branched caudal fin rays 11-17; branchiostegal rays 6. Triads of sensory papillae occur midlaterally and scattered clusters of neuromasts are present on the head. Coloration uniform dark gray to back with paler venter.
Body shape (shape guide): elongated.
Adults occur in springs and caves (but almost always near surface). They live underground but emerge above ground in springs (Ref. 5723). Active in springs at night and usually retreat underground during the day. The few individuals which venture into the spring portions of their habitat may show strong rheotaxis for half to one-minute periods but usually show strong thigmotaxis and hide under rocks or debris (Ref. 34868). Feed at night on amphipods, midge larvae, tiny worms and micro-crustaceans. Fecundity averages about 100 eggs per female (Ref. 10294). Eggs are carried in gill chambers of females (Ref. 205).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Incubates eggs in gill chamber of females (Ref. 205).
Etnier, D.A. and W.C. Starnes, 1993. The fishes of Tennessee. The University of Tennessee Press, Knoxville, Tennessee, USA. (pls. check date). (Ref. 10294)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
用具
特記事項
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照
82804): PD
50 = 1.0081 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
栄養段階 (参照
69278): 3.3 ±0.44 se; based on food items.
Generation time: 1.6 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
回復力 (参照
120179): 高い, １５か月以下の倍増期間の最小個体群 (K=0.67; tm=1; tmax=3; Fec = 100).
漁業の脆弱性 (Ref.
59153): Low vulnerability (21 of 100).
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