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Acanthuriformes (Surgeonfishes) >
Leiognathidae (Slimys, slipmouths, or ponyfishes) > Gazzinae
Eponymy: Thomas Edmund Burt Pope (1879–1958) was a scientific assistant in the US Bureau of Fisheries. [...] (Ref. 128868), visit book page.
More on author: Whitley.
Issue
Common names of Equuilites elongatus retained in E. popei following respective countries of occurrence.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 20 - 100 m (Ref. 28016). Tropical; 45°N - 30°S, 30°E - 165°E
Indo-West Pacific: east coast of Africa (Mozambique, Oman) and the Red Sea (a Lessepsian migrant, Golani et al, 2011) to the Philippines; north to Japan (including Okinawa), Thailand (Gulf of Thailand); south to Malaysia (Sabah).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 12.0 cm TL male/unsexed; (Ref. 30573); common length : 8.0 cm TL male/unsexed; (Ref. 3424)
Dorsal spines (total): 8; Dorsal soft rays (total): 16; Anal spines: 3; Anal soft rays: 14. This species of the Equulites elongatus group is distinguished by the following set of characters: eye diameter 82-137% postorbital head length; distance from pelvic-fin insertion to center of anus 35-50% of the distance from pelvic-fin insertion to anal-fin origin; scales above lateral line 8-13, below 12-19; dorsolateral body with large dark blotches rarely forming ring marks (0-2) and a few dark spots (0-5) that are smaller than a half of pupil diameter; the tips of neural and hemal spines of fourth preural centrum is less expanding, distal expansion ratios of neural and hemal spines of the fourth preural centrum 2.1-3.9. Colour of the head and ventrolateral body almost uniformly silvery white; snout tip blackish; upper posterior margin of the operculum pale yellow; dorsolateral body silvery brown with scattered dark blotches; pectoral axil dark and pectoral fin pale yellow; black lines along the caudal-fin rays, the posterior margin of caudal fin dark while other fins are colourless (Ref. 120651).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Inhabits shallow waters, usually in schools near the bottom. Feeds mainly on small crustaceans, polychaetes and algae (Ref. 30573).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Suzuki, T. and S. Kimura, 2017. Taxonomic revision of the Equulites elongatus (Günther 1874) species group (Perciformes: Leiognathidae) with the description of a new species. Ichthyol. Res..64(3):[1-14]339-352. (Ref. 120651)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Fisheries: minor commercial
Tools
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 22.1 - 28.4, mean 27.3 °C (based on 743 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01549 (0.00823 - 0.02913), b=3.15 (2.99 - 3.31), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.0 ±0.35 se; based on food items.
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (K=0.80-1.40).
Fishing Vulnerability (Ref.
59153): Low vulnerability (14 of 100).
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![Image of Equulites popei (Pope\](/images/thumbnails/gif/tn_Leelo_u0.gif "Image of Equulites popei (Pope\")
