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Gobiiformes (Gobies) >
Gobiidae (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
Ecologia
marino; acqua dolce; salmastro demersale; amfidromo (Ref. 46888); distribuzione batimetrica 1 - 16 m (Ref. 28077). Subtropical; 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).
Length at first maturity / Size / Peso / Age
Maturity: Lm 3.0 range ? - ? cm
Max length : 6.4 cm TL maschio/sesso non determinato; (Ref. 52193)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 6; Raggi dorsali molli (totale) : 11 - 12; Spine anali: 0; Raggi anali molli: 12.
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.
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
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 Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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Fonti Internet
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).
Trophic level (Ref.
69278): 3.3 ±0.45 se; based on food items.
Resilienza (Ref.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
