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Galeichthys ater, Black seacatfish : fisheries
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Teleostei (teleosts) >
Siluriformes
(Catfishes) >
Ariidae
(Sea catfishes) > Galeichthyinae
Etymology:
Galeichthys:
Greek, galeos = a shark + Greek, ichthys = fish (Ref.
45335
)
.
More on author:
Castelnau
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated. Subtropical; 34°S - 35°S
Southeast Atlantic: South Africa and Namibia.
Length at first maturity / Size / Weight / Age
Maturity: L
m
24.5
  range ? - ? cm
Max length : 45.0 cm TL male/unsexed; (Ref.
3976
)
Anal
spines
: 0;
Anal
soft rays
: 19 - 22. This species is distinguished with the following characters: short head, nearly as broad as long; blunt snout, well-rounded in lateral profile and dorsally; palatal tooth patches posterior to premaxillary tooth band meet at midline; rounded caudal-fin lobes, of near equal length, fin not deeply forked; short and thick caudal peduncle; underside of body (both head and belly) covered with fine brown specks; anterior gill-rakers on first arch 10-13 (5 + 5); pectoral fin rays 9-12; fatty growth along pectoral fin spines of breeding females not present outside spawning season. Dimorphism present with posterior (humeral) process of cleithrum obvious externally, fan-shaped in females, triangular in males; smooth and shallow dorsomedian cranial depression on exposed skull not reaching supraoccipital process (Ref.
85159
).
Carnivorous on benthic invertebrates, primarily annelids (Ref.
4332
).
A paternal mouth brooder.
Kulongowski, C.
, 2010. Revision of the ariid catfish genus
Galeichthys
Valenciennes (subfamily Galeichthyinae), with description of a new species from South Africa and designation of a neotype for
G. ater
Castelnau. Smithiania Bull. (12):9-23. (Ref.
85159
)
IUCN Red List Status (Ref.
130435
)
Not Evaluated
CITES
Not Evaluated
Not Evaluated
Threat to humans
Traumatogenic (Ref.
58010
)
Human uses
Fisheries: minor commercial
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Estimates based on models
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00167 - 0.01091), b=3.07 (2.85 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.6 ±0.48 se; based on food items.
Resilience (Ref.
120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153
): Low to moderate vulnerability (35 of 100).
Price category (Ref.
80766
):
Medium
.
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