分類 / Names
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Teleostei >
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.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 大洋性. 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.
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 7.0  range ? - ? cm
Max length : 13.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 5723); common length : 8.4 cm TL 雄魚/尚未辨別雌雄; (Ref. 12193); 最大年齡: 2.00 年 (Ref. 12193)
背棘 (總數) : 4 - 7; 背的軟條 (總數) : 8 - 12; 臀棘: 1; 臀鰭軟條: 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).
Occur near surface of lakes, ponds, and quiet pools of creeks and small to large rivers. Usually found in open water (Ref 5723, 10294). Feed on zooplankton, including copepods, cladocerans, and midge larvae (Ref. 10294).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Werneke, D.C. and J.W. Armbruster, 2015. Silversides of the genus Labidesthes (Atheriniformes: Atherinopsidae). Zootaxa 4032(5):535-550. (Ref. 104856)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 21 February 2012
人類使用
誘餌: usually
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00437 (0.00232 - 0.00821), b=3.04 (2.87 - 3.21), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (Ref.
69278): 3.4 ±0.45 se; based on food items.
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (K=3.70; tmax=2).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).