Teleostei (teleosts) >
Albuliformes (Bonefishes) >
Albulidae (Bonefishes) > Pterothrissinae
Etymology: Nemoossis: Name from Latin words 'Nemo' meaning absence and 'ossis' for bones; referring to the absence of supraneural bones.
Eponymy: Gérard Belloc was Directeur du Laboratoire de l’Office Scientifique et Technique des Pêches Maritimes at La Rochelle (1920s & 1930s). [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 20 - 500 m (Ref. 3545), usually 100 - 400 m (Ref. 5576). Deep-water; 22°N - 35°S, 18°W - 20°E (Ref. 109573)
Eastern Atlantic: from Senegal to the west coast of South Africa
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 40.0 cm SL male/unsexed; (Ref. 5576); common length : 33.0 cm SL male/unsexed; (Ref. 5576)
Dorsal spines (total): 0; Dorsal soft rays (total): 51 - 57; Anal spines: 0; Anal soft rays: 11 - 13; Vertebrae: 88 - 92. This species is distinguished by the following set of characters (counts & % in parentheses for lectotype): no supraneural bones; dorsal-fin rays 51-57 (mode 52); total vertebrae 88-92 (91); pored lateral-line scales 79-89 (84); pre-dorsal scale rows 3-8 (8); head length 24-32 % (mean 30 %) of SL); pectoral-fin length 16-21 % (19 %) of SL; pre-dorsal-fin length 27-34 % (30 %) of SL; dorsal-fin base length 53-64 % (60 %) of SL; postorbital length 13-16 % (14 %) of SL; upper caudal-fin length 18-31 % (24 %) of SL (Ref. 109573).
Common on the continental slope (Ref. 2683). Found on muddy bottoms (Ref. 27121). Feeds on benthic copepods and polychaetes (Ref. 27637).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Spawning occurs in open waters. Eggs are pelagic (Ref. 205).
Hidaka, K., Y. Tsukamoto and Y. Iwatsuki, 2017. Nemoossis, a new genus for the eastern Atlantic long-fin bonefish Pterothrissus belloci Cadenat 1937 and a redescription of P. gissu Hilgendorf 1877 from the northwestern Pacific. Ichthyol. Res. 64:45-53. (Ref. 109573)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: minor commercial
Tools
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 8.8 - 16, mean 13.9 °C (based on 56 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00206 - 0.01276), b=3.09 (2.86 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.0 ±0.17 se; based on food items.
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tm=3-4).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (39 of 100).
Climate Vulnerability (Ref.
125649): Low to moderate vulnerability (28 of 100).
Nutrients (Ref.
124155): Calcium = 37.5 [22.5, 83.1] mg/100g; Iron = 0.516 [0.256, 0.988] mg/100g; Protein = 16.7 [15.5, 17.9] %; Omega3 = 0.288 [0.144, 0.587] g/100g; Selenium = 21.1 [8.6, 50.6] μg/100g; VitaminA = 8.08 [1.57, 37.34] μg/100g; Zinc = 0.476 [0.318, 0.698] mg/100g (wet weight);
