分類 / 名前
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Atheriniformes (Silversides) >
Atherinopsidae (Neotropical silversides) > Menidiinae
Etymology: Labidesthes: Greek, labidos = pair of forceps + Greek esthio = to eat; in reference to the shape of the mouth (Ref. 45335); sicculus: Name most likely from Latin 'sicula' meaning small dagger (see Ref. 104856). Others consider the origin of the name from the Latin 'siccus' meaning dried, referring to being found in dried pools (Ref. 10294, 79012).
More on author: Cope.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 外洋の; 移住性ではない (Ref. 126106). Subtropical; 5°C - 20°C (Ref. 13614); 46°N - 25°N
North America: Gulf of Mexico drainages from the Pearl River west to Brazos River including sthe Mississippi River drainage, and the Great Lakes (but not Lake Superior) - St. Lawrence River drainages.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm 7.0  range ? - ? cm
Max length : 13.0 cm TL オス/雌雄の選別がない; (Ref. 5723); common length : 8.4 cm TL オス/雌雄の選別がない; (Ref. 12193); 最大記録サイズ: 2.00 年 (Ref. 12193)
背面の脊椎 (合計) : 4 - 7; 背鰭 (合計) : 8 - 12; 肛門の骨: 1; 臀鰭: 19 - 27. This species is distinguished and differs from Labidesthes vanhyningi by the following characters: Labidesthes sicculus have the anterolateral processes of the posttemporals longer than width of the base (vs. L. vanhyningi having the processes shorter than width of base); with a midlateral stripe tapering to insertion of pectoral fin in advance of first dorsal fin (vs. maintaining width or usually expanding, to insertion of pectoral fin in advance of the first dorsal-fin); a ratio of thoracic length to abdominal length greater than 2 (vs. less than 2) (Ref. 104856).
Body shape (shape guide): elongated; Cross section: compressed.
Adults occur near surface of lakes, ponds, and quiet pools of creeks and small to large rivers. Usually found in open water (Ref 5723, 10294). They feed on zooplankton, including copepods, cladocerans, and midge larvae (Ref. 10294).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Werneke, D.C. and J.W. Armbruster, 2015. Silversides of the genus Labidesthes (Atheriniformes: Atherinopsidae). Zootaxa 4032(5):535-550. (Ref. 104856)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
餌: usually
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 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00241 - 0.00829), b=3.03 (2.86 - 3.20), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
栄養段階 (参照
69278): 3.4 ±0.45 se; based on food items.
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=3.70; tmax=2).
漁業の脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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