Classification / Names
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Gobiesociformes (Clingfishes) >
Gobiesocidae (Clingfishes and singleslits) > Trachelochisminae
Etymology: Trachelochismus: Greek, trachelos = neck + Greek, schismos, -ou = cut (Ref. 45335); aestuarium: Name from Latin 'aestuarium" for 'a tidal inlet of the sea', referring to the presence of this species in
estuaries; noun in apposition..
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; salmastro demersale; distribuzione batimetrica 0 - 29 m (Ref. 116173). Tropical; 33°S - 47°S, 166°E - 179°E (Ref. 116173)
Southwest Pacific: New Zealand.
Size / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 4.3 cm SL maschio/sesso non determinato; (Ref. 116173)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Raggi dorsali molli (totale) : 8; Raggi anali molli: 7; Vertebre: 32. This species is distinguished from its congeners by the following set of characters: adhesive disc region A without flattened papillae at the centre; apapillate area of adhesive disc region A is equal in width or wider than region C; the flap along posterior margin of anterior nostril is a short, thin blade; lachrymal canal pores 2 and 3 flush with surface of skin or weakly elevated above the skin; suborbital, mandibular and postorbital rows of superficial neuromasts are located in shallow grooves with smooth borders; suborbital row is continuous, extending along ventral margin of orbit; postorbital row with 3 superficial neuromasts; a single gill raker present along the anterior edge of ceratobranchial 1; D 8; A 7; pectoral-fin rays 25; vertebrae 14 + 18 = 32. Colouration: in life, a single dark brown or black irregular streak found on the lateral surface of head posterior to eye (Ref. 116173).
Known only from shallow bay (0-29 m) and estuarine areas along the coast of New Zealand. Usually it is asscoiated with mixed shell-bryozoan rubble benthic communities. Some speciments have also been collected in association with Zostra and mangroves. At the type locality, it is found predominantly in association with spent shells of bivalves over a substrate of fine sand and silt at depths below the low tide mark (0-3 m) (Ref. 116173).
Life cycle and mating behavior
Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve
Conway, K.W., A.L. Stewart and C. King, 2017. A new species of the clingfish genus Trachelochismus from bay and estuarine areas of New Zealand (Teleostei: Gobiesocidae). Zootaxa 4319(3). (Ref. 116173)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00468 (0.00180 - 0.01212), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
Resilienza (Ref.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
