Teleostei (teleosts) >
Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobionellinae
Etymology: Redigobius: Latin,. Redere = to come back + Latin, gobius = gudgeon.
Eponymy: B H de Waal was appointed (1892) to be the Consul-General of the Netherlands in Cape Town, South Africa. During the Boer War he was active in support of pro-Boer organisations based in the Netherlands. (Ref. 128868), visit book page.
More on author: Weber.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; brackish; benthopelagic. Subtropical; 23°S - 33°S
Africa: endemic to the southwestern Indian Ocean along african coast from southern Mozambique to the Agulhas Province (Ref. 92840), from east coast rivers and estuaries from the Limpopo to southern KwaZulu-Natal in South Africa (Ref. 2798, 52193); with isolated records from around Knysna and Kariega estuary, Eastern Cape (Ref. 52193). Threatened by deterioration of riverine and estuarine habitats (Ref. 7248).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 5.6 cm SL male/unsexed; (Ref. 52193)
Dorsal spines (total): 7; Dorsal soft rays (total): 7 - 8; Anal spines: 1; Anal soft rays: 5 - 7. Diagnosis: Distinguished by the following characteristics: brownish head and body; 5-7 dark vertical to oblique bars along side; curved oblique dark stripes on pale head; reddish unpaired fins; compressed head and body; second dorsal rays I,6-8; anal rays I,5-7; pectoral rays 16-19; longitudinal scales 23-26; TRB 8-11; predorsal scales 8-11; circumpeduncular scales 13; second to fourth spine of first dorsal fin longest; first dorsal fin rounded without elongate spines (Ref. 84480).
Found in clear, vegetated littoral habitats in floodplain pans, lakes and estuaries (Ref. 7248, 52193). It feeds on small crustaceans and insect larvae (Ref. 7248, 52193). Spawns in summer (Ref. 7248, 52193).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Larson, H.K., 2001. A revision of the gobiid fish genus Mugilogobius (Teleostei: Gobioidei), and its systematic placement. Rec. West. Aust. Mus. (Suppl. No. 62):1-233. (Ref. 43716)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00444 - 0.02153), b=3.04 (2.85 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±0.45 se; based on food items.
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
