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Maculabatis gerrardi, Sharpnose stingray : fisheries, gamefish, aquarium
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Maculabatis gerrardi
Picture by
Randall, J.E.
Classification / Names
Common names
|
Synonyms
| Catalog of Fishes(
genus
,
species
) |
ITIS
|
CoL
|
WoRMS
|
Cloffa
Elasmobranchii (sharks and rays) >
Myliobatiformes
(Stingrays) >
Dasyatidae
(Stingrays) > Urogymninae
Etymology: More on author:
Gray
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; brackish; demersal; depth range ? - 50 m (Ref.
5578
). Tropical
Indo-West Pacific: Oman to Indonesia; north to Taiwan.
Length at first maturity / Size / Weight / Age
Maturity: L
m
 
?
, range 64 - ? cm
Max length : 200 cm TL male/unsexed; (Ref.
9840
)
Likely confined to the inner continental shelf (Ref.
9840
), over sandy and mud bottoms (Ref.
30573
). Recorded from coastal waters and river mouths (Ref.
45255
). Feeds on bottom crustaceans including shrimp, crabs and small lobsters (Ref.
5578
). Ovoviviparous (Ref.
50449
). Important food fish, the skin and flesh are dried or used to produce leather for purses and bags (Ref.
9840
). Caught in very large quantities in the demersal tangle net, bottom trawl and trammel net fisheries. Utilized for its meat, skin (high value) and cartilage (Ref.
58048
). It is parasitised on the dorsal skin surface by the monogeneans
Dendromonocotyle citrosa, D. colorni, D. ukuthena
(Ref.
124058
) and
D. lotteri
(Ref.
124051
).
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref.
50449
). Distinct pairing with embrace (Ref.
205
). Bears 2 young in summer (Ref.
5578
). Gives birth to litters of 1-4 pups; born at 18-21 cm WD (Ref.58048).
Last, P.R., W.T. White, M.R. de Carvalho, B. Séret, M.F.W. Stehmann and G.J.P. Naylor
, 2016. Rays of the world. CSIRO Publishing, Comstock Publishing Associates. i-ix + 1-790. (Ref.
114953
)
IUCN Red List Status (Ref.
130435
)
Endangered (EN)
(A2d); Date assessed:
06 May 2020
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: commercial; gamefish: yes; aquarium: commercial
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Zoological Record
Estimates based on models
Preferred temperature (Ref.
123201
): 24.7 - 29.1, mean 28.4 °C (based on 1116 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01622 (0.00606 - 0.04338), b=3.00 (2.77 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.7 ±0.55 se; based on food items.
Resilience (Ref.
120179
): Very Low, minimum population doubling time more than 14 years (Fec=2).
Fishing Vulnerability (Ref.
59153
): Very high vulnerability (90 of 100).
Climate Vulnerability (Ref.
125649
): Moderate to high vulnerability (50 of 100).
Price category (Ref.
80766
):
Low
.
Nutrients (Ref.
124155
): Calcium = 12.9 [1.9, 252.0] mg/100g; Iron = 0.63 [0.06, 7.40] mg/100g; Protein = 20.9 [18.3, 23.5] %; Omega3 = 0.122 [0.038, 0.345] g/100g; Selenium = 50.3 [10.3, 257.1] μg/100g; VitaminA = 4.98 [0.44, 49.87] μg/100g; Zinc = 0.725 [0.044, 8.176] mg/100g (wet weight);
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