Etheostoma juliae Meek, 1891
Yoke darter
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Etheostoma juliae
画像によって The Native Fish Conservancy
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画像によって The Native Fish Conservancy
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> Perciformes/Percoidei (Perchs) > Percidae (Perches) > Etheostomatinae
Etymology: Etheostoma: Greek, etheo = to strain + Greek, stoma = mouth; Rafinesque said "various mouths", but Jordan and Evermann suggest the name might have been intended as "Heterostoma (Ref. 45335).
Eponymy: Julia Ringold Hughes (1849–1916) was the wife of ichthyologist Dr Charles Henry Gilbert (1859–1928). (Also see Gilbert, CH). (Ref. 128868), visit book page.
More on author: Meek.
Etymology: Etheostoma: Greek, etheo = to strain + Greek, stoma = mouth; Rafinesque said "various mouths", but Jordan and Evermann suggest the name might have been intended as "Heterostoma (Ref. 45335).
Eponymy: Julia Ringold Hughes (1849–1916) was the wife of ichthyologist Dr Charles Henry Gilbert (1859–1928). (Also see Gilbert, CH). (Ref. 128868), visit book page.
More on author: Meek.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲 生態学
; 新鮮な水 底生の漂泳性. Subtropical; 38°N - 33°N
分布 領土 | 国連食糧農業機関の区域 | エコシステム | 事件 | 目的のマップ | 導入 | Faunafri
North America: found only in White River drainage (excluding Black River system) in southern Missouri and northern Arkansas, USA.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm 3.2 range ? - ? cm
Max length : 7.8 cm TL オス/雌雄の選別がない; (Ref. 5723); common length : 4.8 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. 7043)
Max length : 7.8 cm TL オス/雌雄の選別がない; (Ref. 5723); common length : 4.8 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. 7043)
簡単な記述 検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 11 - 12; 背鰭 (合計) : 11 - 12; 肛門の骨: 2; 臀鰭: 7 - 8; 脊つい: 35 - 36.
Body shape (shape guide): elongated.
Body shape (shape guide): elongated.
Occur in clear, fast, rocky riffles of creeks and small to medium rivers (Ref. 5723). Spawn in batches (Ref. 36980). Distinct pairing during breeding (Ref. 36980).
ライフサイクルと交尾行動 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Breeding pairs were observed on gravel patches behind rocks in 30-60 cm of water. The following account of mating behaviour comes from (Ref. 36980): 'In a typical behavior pattern, 5-10 males were observed following a gravid female..Once the female had selected a suitable spawning site, she would dig head first into the gravel with violent thrashing movements. After two or three attempts, females usually became half buried in the gravel with only head and pectoral fins exposed. During this activity attending males began making rapid darting movements around the female. The attending males moved closer to the buried female until one male, usually the largest, positioned himself beside or over her. Occasionally an even larger male would enter an area and replace the attendant male. After a male had remained with a buried female for a few minutes, he began to aggressively defend a territory. Other males that came within about 20 cm of the female were quickly chased away. In the absence of other males, the attendant male began courtship behavior by darting rapidly around the female, nudging her with his snout and perching along side or on top of her. Courtship lasted up to 30 min. Then the female began a series of rapid quivering movements followed by, or concurrent with, trembling movements by the male. It was assumed that the rapid vibrating movements of the female and male, lasting about 5 sec., indicated deposition of eggs and release of sperm. A female remained buried in the same spot during a series of 3-5 quiverings over a period of nearly 5 min. About 10 min after spawning, both fish moved away from the nest and egg guarding was not observed by either sex.' Eggs are buried under small gravel and pebbles (Ref. 36980).
主な参考文献
参考文献のアップロード | 参考文献 | コーディネーター | 協力者
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
CITES
Not Evaluated
人間に対する脅威
Harmless
人間の用途
FAO - Publication: search | FishSource |
より多くの情報
解剖学
カマ
脳
オトリス
カマ
脳
オトリス
生理学
体組成
栄養素
酸素消費
水泳タイプ
泳ぐ速さ
視覚色素
フィッシュ・サウンド
病気と寄生虫
毒性（LC50）
体組成
栄養素
酸素消費
水泳タイプ
泳ぐ速さ
視覚色素
フィッシュ・サウンド
病気と寄生虫
毒性（LC50）
遺伝子の
ゲノム
遺伝子の
ヘテロ接合性
遺伝
遺伝的多様性
ゲノム
遺伝子の
ヘテロ接合性
遺伝
遺伝的多様性
用具
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インターネットの情報源
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モデルに基づく推定値
|
系統多様性指数 (参照 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00912 (0.00555 - 0.01498), b=3.17 (3.03 - 3.31), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
|
栄養段階 (参照 69278) |
3.3 ±0.5 se; based on size and trophs of closest relatives |
|
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=0.40-0.99; tm=1; tmax=3; Fec=800). |
|
漁業の脆弱性 (Ref. 59153) |
Low vulnerability (14 of 100). 🛈 |