分類 / 名前
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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Sicydiinae
Etymology: Stiphodon: Greek, stiphos, -eos, -oys = mass + Greek, odous = teeth (Ref. 45335).
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海; 新鮮な水; 汽水性の 底生の; 両側回遊性 (Ref. 82685). Subtropical
Asia: Ryukyu Islands and Taiwan. Oceania: Guam, Mariana Islands and Babelthuap, Palau.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm 2.0  range ? - ? cm
Max length : 3.7 cm SL オス/雌雄の選別がない; (Ref. 28731); 4.2 cm SL (female)
背面の脊椎 (合計) : 6 - 7; 背鰭 (合計) : 9 - 10; 肛門の骨: 1; 臀鰭: 10 - 11.
Body shape (shape guide): elongated.
Adults inhabit small, clear streams with rocky bottoms usually covered with dense mats or clumps of algae (Ref. 28731). This species produces small pyriform eggs, laid on the undersurfaces of stones in freshwater streams. Newly hatched larvae are small (0.12-0.13 cm in notochord length) and poorly developed. These migrate downstream to the sea shortly after hatching at dusk, where they develop as pelagic larvae for 2.5-5 months. Pelagic larvae may potentially disperse to distant islands before migrating to freshwater streams when they reach 1.3-1.4 cm standard length (SL) where they grow further and reproduce (Ref. 95104).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Watson, R.E and I.-S. Chen, 1998. Freshwater gobies of the genus Stiphodon from Japan and Taiwan (Teleostei: Gobiidae: Sicydiini). aqua, J. Ichthyol. Aquat. Biol. 3(2):55-66. (Ref. 28731)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
水産業: 興味がない
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) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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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). |
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0 |
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Generation time |
0.7 ( na - na) years. Estimated as median ln(3)/K based on 2 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 (tm=0.5; tmax<2;). |
漁業の脆弱性 (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |