分類 / Names
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Atheriniformes (Silversides) >
Atherinopsidae (Neotropical silversides) > Menidiinae
Etymology: Menidia: Greek, menoeides, -es, -es = like a half noon shape (Ref. 45335).
More on authors: Hubbs & Raney.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 外洋の; pH range: 6.6 - 6.8. Temperate; 35°N - 34°N
North America: occurs only in the Lake Waccamaw in North Carolina, USA.
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm 3.3 range ? - ? cm
Max length : 8.0 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. 12193)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 10 - 17; 肛門の骨: 0; 臀鰭: 16 - 22; 脊つい: 41 - 45. Silvery-white with black melanophores surrounding each scale on the dorsal two-thirds of the body. The dorsal half of the body is almost translucent.
Usually occur in large schools near surface in open water, over dark sandy bottom (Ref. 35360). Well adapted to a life of heavy predation (Ref. 35360). Frequent skipping over the water surface is observed apparently in avoidance of predators (Ref. 35360).
Based on otolith data, these species spawn after their first winter and that only a small segment of the population lives through the second winter (Ref. 35360).
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)
Human uses
水産業: 商業; 餌: usually
用具
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.1 ±0.41 se; based on food items.
Generation time: 1.1 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
回復力 (Ref.
120179): 高い, １５か月以下の倍増期間の最小個体群 (K=1.04-1.36; tmax=3).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
