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Plectropomus laevis, Blacksaddled coralgrouper : fisheries, gamefish
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Plectropomus laevis
Picture by
Randall, J.E.
Teleostei (teleosts) >
Perciformes/Serranoidei
(Groupers) >
Epinephelidae
(Groupers)
Etymology:
Plectropomus:
Greek,plektron = anything to strike with, spur + Greek, poma = cover, operculum (Ref.
45335
)
.
More on author:
Lacepède
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 4 - 100 m (Ref.
6390
). Tropical; 30°N - 33°S, 33°E - 134°W (Ref.
5222
)
Indo-Pacific: Kenya to Delagoa Bay, Mozambique, eastward to the Tuamoto Islands, north to the Ryukyu Islands, south to Queensland, Australia and including most islands of the Indian Ocean and of western and central Pacific. Unknown in the Red Sea and Persian Gulf. Misidentified as
Plectropomus maculatus
by some authors (Ref.
6448
,
6892
).
Length at first maturity / Size / Weight / Age
Maturity: L
m
 
?
, range 60 - ? cm
Max length : 125 cm TL male/unsexed; (Ref.
30573
); common length : 84.0 cm SL male/unsexed; (Ref.
37816
); max. published weight: 24.2 kg (Ref.
40637
)
Dorsal
spines
(total): 7 - 8;
Dorsal
soft rays
(total): 10-12;
Anal
spines
: 3;
Anal
soft rays
: 8.
A voracious piscivore inhabiting coral-rich areas of lagoon and seaward reefs. Encountered most frequently in channels and outer shelf reefs. Migrate over short distances to spawn, forming large aggregations, maybe 1 or 2 per reef (Ref.
6390
). Feeds mostly on fishes, and occasionally on crustaceans (Ref.
9710
). The prey comprises a variety of large reef fishes, including groupers, and this diet of large fishes is responsible for the high concentrations of ciguatera toxins. Juveniles may mimic the pufferfish
Canthigaster valentini
. Usually wary (Ref.
9710
). The young have a demersal existence in shallow water in reef habitats, especially around coral rubble (Ref.
27259
). They feed on small fish and invertebrates such as crustaceans and squid (Ref.
27261
). Eggs float just below the surface (Ref.
6390
). The pelagic larvae are found in habitats similar to those of the adults (Ref.
27260
). An excellent table fish (Ref.
6390
).
Heemstra, P.C. and J.E. Randall
, 1993. FAO Species Catalogue. Vol. 16. Groupers of the world (family Serranidae, subfamily Epinephelinae). An annotated and illustrated catalogue of the grouper, rockcod, hind, coral grouper and lyretail species known to date. Rome: FAO. FAO Fish. Synop. 125(16):382 p. (Ref.
5222
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
21 November 2016
CITES
Not Evaluated
Not Evaluated
Threat to humans
Reports of ciguatera poisoning (Ref.
1602
)
Human uses
Fisheries: commercial; gamefish: yes
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Zoological Record
Estimates based on models
Preferred temperature (Ref.
123201
): 25.5 - 28.9, mean 27.6 °C (based on 276 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00609 - 0.01643), b=3.07 (2.93 - 3.21), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245
).
Trophic level (Ref.
69278
): 4.1 ±0.57 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
): High vulnerability (61 of 100).
Price category (Ref.
80766
):
Very high
.
Nutrients (Ref.
124155
): Calcium = 20.8 [13.2, 35.1] mg/100g; Iron = 0.482 [0.266, 0.777] mg/100g; Protein = 18.7 [16.9, 20.3] %; Omega3 = 0.133 [0.090, 0.206] g/100g; Selenium = 47.6 [28.5, 84.4] μg/100g; VitaminA = 76.1 [28.9, 230.2] μg/100g; Zinc = 0.698 [0.493, 0.988] mg/100g (wet weight);
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