Teleostei (teleosts) >
Aulopiformes (Grinners) >
Scopelarchidae (Pearleyes)
Etymology: Rosenblattichthys: Because of Richard Rosenblatt, ichthyologist os Scripp Institution of Oceanography in La Jolla; hubbsi: Named after Carl L. Hubbs in recognition of his numerous contributions to ichthyology (Ref. 40783).
Eponymy: Dr Richard Heinrich ‘Dick’ Rosenblatt (1930–2014) was an American ichthyologist and oceanographer. [...] Professor Carl Levitt (Leavitt) Hubbs (1894–1979) was a giant of American ichthyology. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; pelagic-oceanic; oceanodromous (Ref. 51243); depth range 0 - 657 m (Ref. 58302). Subtropical
Atlantic, Indian and Pacific: in subtropical waters; unknown from the central South Pacific and the Mediterranean Sea. Eastern Central Atlantic: known from only 3 stations, ca 24°N to 2.5°S, none from the Gulf of Guinea, Benguela Current area.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 14.5 cm SL male/unsexed; (Ref. 10755)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 0; Dorsal soft rays (total): 8 - 9; Anal spines: 0; Anal soft rays: 23 - 25; Vertebrae: 49. Color in alcohol: more or less yellow-brown, with intense pigmentation outlining scale pockets; pectoral and pelvic fins covered with small, scattered melanophores; black streak bordering anterior margin of eye (Ref. 6601).
Oceanic, mesopelagic or bathypelagic species (Ref. 6601). The single known adult (holotype) was taken in haul between 657 to 0 m; most larvae have been taken in haul in the upper 500 m and in waters as shallow as 60 m. Probably feeds on other midwater fishes (Ref. 6691). Presumed to be synchronous hermaphrodites (Ref. 10755). Also Ref. 58302.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Johnson, R.K., 1990. Scopelarchidae. p. 393-397. In J. C. Quero, J. C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 10755)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 11.9 - 23.7, mean 17 °C (based on 86 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00143 - 0.00840), b=3.16 (2.94 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 4.2 ±0.73 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
![Image of Rosenblattichthys hubbsi (Hubb\](/images/thumbnails/gif/tn_Rohub_u0.gif "Image of Rosenblattichthys hubbsi (Hubb\")
