Teleostei >
Gobiiformes (Gobies)
鱸形目 (Gobies) >
Gobiidae (Gobies)
鰕虎魚科 (Gobies) > Gobiinae
Eponymy: Dr John Frederick Croil Morgans was a research assistant at the Zoology Department of the University of Cape Town. [...] (Ref. 128868), visit book page.
More on author: Smith.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋; 淡水; 半鹹淡水 居於水底的; 非產卵性溯降河的 (Ref. 46888); 深度上下限 1 - 16 m (Ref. 28077). 亞熱帶的; 25°S - 31°S
Africa: coastal lakes and estuaries in KwaZulu-Natal, South Africa, and southern Mozambique (Ref. 2798, 52193); also recorded from Madagascar (Ref. 4343).
非洲: 莫三比克南部到南非的德爾班 (參考文獻 2798),從馬達加斯加記錄。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 3.0 range ? - ? cm
Max length : 6.4 cm TL 雄魚/尚未辨別雌雄; (Ref. 52193)
背棘 (總數) : 6; 背的軟條 (總數) : 11 - 12; 臀棘: 0; 臀鰭軟條: 12.
深色的橫帶眼睛下面; 黃褐色的顏色, 有深色的斑點上方; 側邊 6-10個縱帶; 大的標本有黑色邊緣是背鰭與臀鰭; 尾鰭有斜紋。 (參考文獻 2798)
Lives in burrows excavated in clean sand, often in association with the sandprawn Callianassa kraussi (Ref. 52193). Restricted to sandy, quiet water areas and is unable to form burrows where the substrate is disturbed by water movements, is muddy or consists of sand with a particle diameter > 0.5 mm (Ref. 28077). Food consists of slow moving benthic organisms like chironomid larvae, gastropods, bivalves and amphipods (Ref. 28077). Breeds throughout summer, males are territorial (Ref. 52193). On exposed shores, they occur deeper than 3.5 m (Ref. 28077, 2798). Occasionally intertidal.
侷限於.沙的, 靜止的水域區域而且不能夠形成洞穴在哪裡藉著水運動，底部是擾亂的, 是泥濘的或者由沙子具有一個粒子直徑 >0.5 mm 組成。 食物由像寶刀魚仔魚，腹足動物，二枚貝與片腳類動物的緩慢移動的底棲性生物組成。 在裸露的海岸上，他們出現在較深處勝於 3.5 公尺。 (參考文獻 28077,2798) 偶然潮間帶。
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
非洲: 莫三比克南部到南非的德爾班 (參考文獻 2798),從馬達加斯加記錄。
Skelton, P.H., 2001. A complete guide to the freshwater fishes of southern Africa. Cape Town (South Africa): Struik Publishers, 395 p. (Ref. 52193)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
無危 (LC) ; Date assessed: 01 March 2007
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Estimates based on models
Preferred temperature (Ref.
123201): 23.6 - 25.1, mean 24.9 °C (based on 35 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00339 - 0.01546), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.3 ±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 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
