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Awaous commersoni  (Schneider, 1801)

Commerson’s freshwater goby
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Awaous commersoni
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drawing shows typical fish in this Family.

分類 / Names 俗名 | 同種異名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii 輻鰭魚綱 (條鰭魚) > Perciformes (Perch-likes) > Gobiidae (Gobies) > Gobionellinae

環境 / 氣候 / 範圍 生態學

; 淡水; 半鹹淡水 底中水層性; 非產卵性溯降河的 (Ref. 57749).    , preferred ?

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Southwestern Indian Ocean: Réunion, Mauritius, Rodrigues, Comores, Madagascar.

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 25.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 57749)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 7; 背的軟條 (總數): 10-11; 臀棘 1; 臀鰭軟條: 9 - 10. Large head. Fusiform body. Large and terminal mouth. Two dorsal fins. First with 6 spines, second with 1 spine and 10 to 11 branched rays. Adults body and fins usually grey to black with a clearer belly. Juveniles brown with a serie of darker rounded marks along the flanks. First dorsal usually shows a black mark in its posterior part, especially for young specimens. Fading while fish age. 10 to 25cm (Ref. 57749).

生物學特性     字彙 (例如 epibenthic)

This species occurs in freshwaters and sometimes brackish waters in slow to fast current waters to the base of the first falls. Usually occurs in clear waters with sand, gravel or rock bottom. Feeds on algae, detritus, worms, gastropods and crustaceans. Close biology to A. guamensis. Amphidromous species. Adults migrate to the mouth of the rivers for reproduction. Females spawn on the rocks' surface where the males fecund the eggs. Males protect the eggs until they hatch (incubation lasts 24 to 70hrs). Larvae, translucid, are then carried into estuaries or sea. They come back after they spent 150 to 165 days in seawaters (Ref. 57749). Also Ref. 4343.

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚


主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

Keith, P., G. Marquet, P. Valade, P. Bosc and E. Vigneux, 2006. Atlas des poissons et des crustacés d'eau douce des Comores, Mascareignes et Seychelles. Muséum national d’Histoire naturelle, Paris. Patrimoines naturels, 65:250p. (Ref. 57749)

IUCN 瀕危狀態 (Ref. 115185)

  未評估 

CITES (Ref. 94142)

Not Evaluated

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網路資源

BHL | Cloffa | Websites from users | 檢查 FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank(基因組, 核甘) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | 樹狀分類階層 | Wikipedia(, 搜尋) | World Records Freshwater Fishing | 動物學的記錄

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00395 - 0.01919), b=3.05 (2.86 - 3.24), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278):  2.2   ±0.1 se; Based on size and trophs of closest relatives
回復力 (Ref. 69278):  中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
瀕危性 (Ref. 59153):  Moderate vulnerability (42 of 100) .