分類 / 名前
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Eupercaria/misc (Various families in series Eupercaria) >
Gerreidae (Mojarras)
Etymology: Gerres: Latin, gerres = a kind of anchovies; cited by Plinius; mozambiquensis: The name mozambiquensis indicates the type locality for the species (Ref. 75744).
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水; 汽水性の 外洋の. Tropical
Africa: only known from the Larde Estuary in Mozambique (Ref. 75744).
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 11.9 cm SL オス/雌雄の選別がない; (Ref. 75744)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 9; 背鰭 (合計) : 10; 肛門の骨: 3; 臀鰭: 7. Diagnosis: A species of Gerres with the following combination of characters: body depth 46-47% of standard length, distinctly more than head length; dorsal fin with 9 spines and 10 soft rays; anal fin with 3 spines and 7 soft rays; pored lateral-line scales 43-44; 4-4.5 scales between fifth dorsal-fin spine base and lateral line; 5.5-6.5 scales above lateral line, 9.5-10.5 below; scales on dorsum of head extend to or slightly beyond vertical at front edge of orbit, without two converging rows of minute scales within larger scales, premaxillary groove at front of interorbital area not scaly; gill rakers on first gill arch 12-13; second dorsal-fin spine longest, its length about twice orbit diameter; second anal-fin spine robust, ratio of greatest width of second spine to greatest width of third spine 1.7-1.8; margin of inter-spinous membranes of second to fifth dorsal-fin spines black; caudal fin lobes short, length of upper lobe equal to head length; body with six to eight indistinct dark vertical bars, bar width about half pupil diameter; supraneural bones three (Ref. 75744).
Currently only known from the type locality; no details available on whether habitat is freshwater or brackish (Ref. 75744).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Iwatsuki, Y. and P.C. Heemstra, 2007. A new gerreid fish species and redescription of Gerres maldivensis Regan, 1902 from the Indian Ocean (Perciformes: Gerreidae). Copeia 2007(1):85-92. (Ref. 75744)
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): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00607 - 0.03285), b=3.04 (2.86 - 3.22), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
栄養段階 (参照
69278): 3.3 ±0.3 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 (Preliminary K or Fecundity.).
漁業の脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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