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Pleuronectiformes (Flatfishes) >
Bothidae (Lefteye flounders)
Etymology: Crossorhombus: Greek krossoi = tassel + Greek, rhombos = paralelogram (Ref. 45335).
More on authors: Hensley & Randall.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser demersal; tiefenbereich ? - 8 m (Ref. 9824). Temperate
Northwest Pacific: Taiwan. Southwest Pacific: Lord Howe Island. Possibly occurring in the Western Central Pacific.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ? range ? - ? cm
Max length : 13.0 cm TL Männchen/unbestimmt; (Ref. 9824)
Rückenflossenweichstrahlen (insgesamt) : 85 - 88; Afterflossenweichstrahlen: 64 - 69. Head and body on eyed side tan to grey with many small dark specks and spots. A series of dark spots very close to dorsal and ventral edges of body. About 4 or 5 spots along straight section of lateral line. Dorsal, anal, and caudal fin light coloured with small dark specks. Flaps on eyes of males with dark spots. Blind side of females tan to whitish. Males with distinct bluish black V-shaped mark on blind side. Ventral arm of "V" wider than dorsal arm. Body ovoid, its depth about 1.7 times SL. Head small, snout shorter than eye, profile steep anterior to interorbital area. Head length 3.9 to 4.2 times SL. Interorbital region broad and concave, probably wider in males than females. Males with a rostral spine and several small orbital spines. Both eyes on left side of head, front margin of upper eye over middle of lower eye. Flaps on posterior areas of eyes in males. Mouth small, reaching to below anterior margin of lower eye, length of upper jaw 3.5 to 4.1 times in head length. Teeth of upper jaw biserial, teeth of outer row more widely spaced than teeth of inner row. Teeth in lower jaw uniserial. Gill rakers short. Scales on eyed side with long ctenii. Scales on blind side cycloid. Pectoral fin on eye side with 11 or 12 rays and on blind side with 9 or 10 rays (Ref 42535).
Body shape (shape guide): short and / or deep.
Lives on silty sand bottoms and feeds on bottom-living animals. Only known from specimens collected from divers. Sexually dimorphic characters possibly develop at about 6-7 cm SL.
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Hensley, D.A. and K. Amaoka, 2001. Bothidae. Lefteye flounders. p. 3799-3841. In K.E. Carpenter and V. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 6. Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles. FAO, Rome. (Ref. 9824)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: nicht kommerziell
Tools
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00412 - 0.02018), b=3.05 (2.87 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophische Ebene (Ref.
69278): 3.5 ±0.37 se; based on food items.
Widerstandsfähigkeit (Ref.
120179): mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Preliminary K or Fecundity.).
Anfälligkeit der Fischerei (Ref.
59153): Low vulnerability (10 of 100).
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