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Evynnis tumifrons, Yellowback seabream : fisheries
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Evynnis tumifrons
Picture by
Suzuki, T.
Teleostei (teleosts) >
Eupercaria/misc
(Various families in series Eupercaria) >
Sparidae
(Porgies)
Etymology:
Evynnis:
Greek, eu = good + Greek, ynnis, -eos = ploughshare (Ref.
45335
)
.
More on authors:
Temminck
&
Schlegel
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 30 - 346 m (Ref.
75154
). Subtropical; 45°N - 22°N, 114°E - 146°E
Western Pacific: Hokkaido, Japan, Korea, Taiwan and south to Macau, China; a single specimen from Bali, Indonesia.
Length at first maturity / Size / Weight / Age
Maturity: L
m
14.9
, range 12 - 20.8 cm
Max length : 35.0 cm SL male/unsexed; (Ref.
559
); common length : 20.0 cm TL male/unsexed; (Ref.
2115
)
Dorsal
spines
(total): 12;
Dorsal
soft rays
(total): 10;
Anal
spines
: 3;
Anal
soft rays
: 9. Under
Evynnis
, this species is chracterized by the following set of characters: D XII,10, with the first and second spines considerably shorter than third and fourth spines which are extended, and the third dorsal fin spine less than 2 time in fifth dorsal fin spine; A III,9; pectoral fin rays usually 15; scales on preopercular flange absent; body depth relatively lower, standard length/body depth over 2.1; when fresh, with scattered cobalt blue spotted markings on side; teeth on vomer usually present (Ref.
75039
).
Inhabits muddy and muddy-sandy bottoms. Feeds on a wide range of benthic invertebrates and on fish. Two spawning seasons, early summer and autumn. Utilized for human consumption especially in the East China Sea where it is caught mostly by trawlers. An important food fish.
Iwatsuki, Y., M. Akazaki and N. Taniguchi
, 2007. Review of the species of the genus
Dentex
(Perciformes:Sparidae) in the Western Pacific defined as the
D. hypselosomus
complex with the description of a new species,
Dentex abei
and a redescription of
Evynnis tumifrons
. Bull. Natl. Mus. Nat. Sci. Ser. A. Suppl. 1:29-49. (Ref.
75039
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
04 December 2009
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: commercial
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Zoological Record
Estimates based on models
Preferred temperature (Ref.
123201
): 8.1 - 21.9, mean 18.2 °C (based on 161 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02512 (0.01600 - 0.03945), b=2.95 (2.82 - 3.08), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245
).
Trophic level (Ref.
69278
): 3.4 ±0.2 se; based on size and trophs of closest relatives
Resilience (Ref.
120179
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.25-0.37).
Fishing Vulnerability (Ref.
59153
): Moderate vulnerability (37 of 100).
Price category (Ref.
80766
):
Medium
.
Nutrients (Ref.
124155
): Calcium = 85 [36, 178] mg/100g; Iron = 1.05 [0.52, 2.28] mg/100g; Protein = 19.9 [18.2, 21.6] %; Omega3 = 0.448 [0.218, 0.969] g/100g; Selenium = 31.2 [13.4, 70.8] μg/100g; VitaminA = 9.46 [2.16, 40.24] μg/100g; Zinc = 0.511 [0.320, 0.792] mg/100g (wet weight);
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