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Pomacentrus rodriguesensis
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drawing shows typical species in Pomacentridae.
Classification / Names
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|
Synonyms
| Catalog of Fishes(
genus
,
species
) |
ITIS
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WoRMS
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Cloffa
Teleostei (teleosts) >
Ovalentaria/misc
(Various families in series Ovalentaria) >
Pomacentridae
(Damselfishes) > Pomacentrinae
Etymology:
Pomacentrus:
Greek, poma, -atos = cover, operculum + Greek, kentron = sting (Ref.
45335
)
;
rodriguesensis:
This species is named
Pomacentrus rodriguesensis
with reference to the type locality. It is probably restricted to this location as collections from other Mascarene Islands have failed to yield specimens.
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 9 - 18 m (Ref.
52297
). Tropical
Western Indian Ocean: known only from Rodrigues Island.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 8.0 cm SL male/unsexed; (Ref.
52297
)
Short description
Morphology
|
Morphometrics
Dorsal
spines
(total): 14;
Dorsal
soft rays
(total): 13-14;
Anal
spines
: 2;
Anal
soft rays
: 15 - 16. Diagnosis: Dorsal rays usually XIV, 13 or 14 (one specimen with XIII, 14); anal rays usually II, 15 (one specimen with II, 12 and another with II, 16); pectoral rays usually 18 (rarely 17 or 19); tubed lateral line scales 17 or 18; gill rakers 7-8 + 12-14 (total 19-21); body depth 1.9-2.0 in SL; in life, color overall brown with darker scale margins and yellowish hue ventrally between pectoral and pelvic fin bases; dorsal fin brown with broad yellow margin; anal and caudal fins brown; pelvic fins yellow with dark brown filamentous tips; iris golden yellow.
Pomacentrus rodriguesensis
is currently known only from Rodrigues. It is relatively common in the lagoon at depths between 9-18 m on reefs that contain mainly
Acropora
corals that are affected by silt deposition. Their territorial behaviour suggests that, although they may not dramatically modify the benthic reef environment, they may promote the biomass of their preferred food algae. Life history characteristics for the family specify that this group is oviparous, with distinct pairing during breeding (Ref.
205
). Eggs are demersal and adhere to the substrate (Ref.
205
). Males guard and aerate the eggs (Ref.
205
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Oviparous, distinct pairing during breeding (Ref.
205
). Eggs are demersal and adhere to the substrate (Ref.
205
). Males guard and aerate the eggs (Ref.
205
).
Allen, G.R. and J.E. Wright
, 2003. Description of a new species of damselfish (Pomacentridae:
Pomacentrus
) from Rodrigues Island, Indian Ocean. aqua, J. Ichthyol. Aquat. Biol. 7(4):133-138. (Ref.
52297
)
IUCN Red List Status (Ref.
130435
)
Not Evaluated
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02399 (0.01139 - 0.05051), b=2.98 (2.81 - 3.15), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 2.7 ±0.3 se; based on size and trophs of closest relatives
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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