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Gobiiformes (Gobies) >
Trichonotidae (Sanddivers)
Etymology: Trichonotus: Greek, thrix = hair + Greek, noton = back (Ref. 45335).
Eponymy: Robert A ‘Bob’ Halstead (1944–2018) was an early innovator in the development of dive tourism, pioneer diving instructor and underwater photographer. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري القاع; نطاق العمق 11 - 35 m (Ref. 90102). Tropical
Western Pacific: Papua New Guinea (Ref. 26146) and Indonesia (Ref. 28620).
الحجم / وزن / العمر
Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm TL ذكر/ مختلط الجنس; (Ref. 48636)
الأشعة الظهرية الناعمة (المجموع) : 39 - 41. Trichonotus halstead is similar to T. setiger but has a beautifully colored dorsal fin (Ref. 48636). No free pterygiophores under dorsal fin (Ref 12934).
Like other sand divers, it occurs on sand slopes with strong currents at times (Ref. 48636). Minimum depth reported from Ref. 26146.
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Clark, E. and M. Pohle, 1996. Trichonotus halstead, a new sand-diving fish from Papua New Guinea. Environ. Biol. Fishes 45(1):1-11. (Ref. 26146)
IUCN Red List Status (Ref. 130435: Version 2024-2)
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (Ref.
123201): 27.5 - 29, mean 28.2 °C (based on 50 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.5 ±0.48 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).