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Ecsenius dentex, Dentex blenny
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Dentex blenny
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Ecsenius dentex
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Cox, C.D.
Teleostei (teleosts) >
Blenniiformes
(Blennies) >
Blenniidae
(Combtooth blennies) > Salariinae
Etymology:
Ecsenius:
Greek, exenios, -os, -on = uncontrolled, immoderate
;
dentex:
Pre-Linnean source unclear; Latin, 'dens' = tooth or toothed, referring to the species' most prominent characteristic of having the highest average number of teeth within the Yaeyamaensis Group.
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 0 - 4 m (Ref.
5296
). Tropical
Western Indian Ocean: occurs only in the Gulf of Aqaba and northernmost part of the Red Sea adjacent to the gulf.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 4.8 cm SL male/unsexed; (Ref.
5296
)
Short description
Morphology
|
Morphometrics
Dorsal
spines
(total): 11 - 13;
Dorsal
soft rays
(total): 13-15;
Anal
spines
: 2;
Anal
soft rays
: 15 - 17;
Vertebrae
: 31 - 33. Dorsal fin XI-XIII.13-15 (rarely XI, XIII, or 15); incised between spinous and segmented-ray portions. Anal fin 11,15-17 (rarely 17). Pectoral fin 12-14 (usually 13). Segmented caudal-fin rays 13. Vertebrae 10 + 21-23. Dentary incisor teeth which includes anterior canines very similar in appearance with incisors, 49-59 in males and 53 to 63 in females, averaging more in females than males; posterior canines 0 or 1 (typically 1). Lateral line lacking vertical pairs of pores, extending posteriorly to point between verticals from 9th and 11th dorsal-fin spines, typically extending to or beyond 10th spine. With cirrus on posterior rim of anterior nostril; absent on anterior rim.
Oviparous. Eggs are demersal and adhesive (Ref.
205
), and are attached to the substrate via a filamentous, adhesive pad or pedestal (Ref.
94114
). Larvae are planktonic, often found in shallow, coastal waters (Ref.
94114
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Oviparous, distinct pairing (Ref.
205
).
Springer, V.G.
, 1988. The Indo-Pacific blenniid fish genus
Ecsenius
. Smithson. Contrib. Zool. (465):134 p. (Ref.
5296
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
25 March 2009
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201
): 24.3 - 28.4, mean 26.6 °C (based on 101 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00335 - 0.01640), b=3.02 (2.83 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 2.0 ±0.00 se; based on food items.
Resilience (Ref.
120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153
): Low vulnerability (10 of 100).
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- 20 July 2016
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