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Rocio octofasciata (Regan, 1903)

Jack Dempsey
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Mexico country information

Common names: Mojarra castarrica, Riquiraqui
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Type locality, 'Río de Sarabia' (Cosamaloapan, original label), Coatzacoalcos drainage, Veracruz, MHNG 665.55 (holotype of Heros cyanoguttatus, 3.9 cm SL) (Ref. 74403). Also Ref. 1739, 4537, 75154.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mx.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Conkel, D., 1993
National Database:

Common names from other countries

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Cichlasomatinae
Etymology: Rocio: Named for the author's wife. In Spanish, the name means morning dew, in allusion to the resplendent spots on cheek and sides of some species, R. gemmata..
  More on author: Regan.

Issue
The generic allocation of this species is still uncertain. It belongs to the tribe Heroini, but is maintained as an incertae sedis species of Cichlasoma pending a revision of heroin cichlids traditionally assigned to the cichlasomatin genus Cich

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; benthopelagic; pH range: 7.0 - 8.0; dH range: 9 - 20.   Tropical; 22°C - 30°C (Ref. 7335); 21°N - 14°N

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

North and Central America: Atlantic slope from southern Mexico (Papaloapán River) to Honduras (Ulua River).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 25.0 cm TL male/unsexed; (Ref. 5723); common length : 7.5 cm TL male/unsexed; (Ref. 12193)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 17 - 19; Dorsal soft rays (total): 8 - 10; Anal spines: 8 - 9; Anal soft rays: 7 - 9. This species has spots on sides smaller than scales, aligned in about 15 regular series (vs. not clearly aligned); abdomen predominantly whitish or greyish in life (similar to R. gemmata, vs. reddish in R. ocotal; ventral angle of articular is acute (vs. right); the first neural spine oriented rostrad (vs. caudad); circumpeduncular scales as few as 17 (vs. always more than 19); distance from the caudal esophageal loop in gut to esophagus always greater than 24% gut length (vs. less than 16%) (Ref. 74403). There are no unique autapomorphies.

Biology     Glossary (e.g. epibenthic)

Occurs in swampy areas with warm, murky water. Found in weedy, mud-bottomed and sand-bottomed canals and drainage ditches (Ref. 5723). Prefers coastal plains and slow moving waters of the lower river valleys (Ref. 7335). Feeds on worms, crustaceans, insects and fish (Ref. 7020).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Lays eggs on substrate. Parents incubate eggs and guard young.

Main reference Upload your references | References | Coordinator : Kullander, Sven O. | Collaborators

Schmitter-Soto, J.J., 2007. A systematic revision of the genus Archocentrus (Perciformes: Cichlidae), with the description of two new genera and six new species. Zootaxa 1603:1-78. (Ref. 74403)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 24 August 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: of no interest; aquarium: highly commercial
FAO(Publication : search) | FishSource |

More information

Trophic ecology
Food items
Diet compositions
Food consumptions
Food rations
Predators
Ecology
Ecology
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproduction
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larvae
Larval dynamics
Anatomy
Gill areas
Brains
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fish sounds
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetics
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Outreach
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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02692 (0.01216 - 0.05956), b=3.04 (2.86 - 3.22), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.5   ±0.51 se; based on food items.
Resilience (Ref. 120179):  High, minimum population doubling time less than 15 months (Assuming tm<1 and multiple annual spawning; Fec=500-800).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (15 of 100).