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🌊 Marine Least Concern 🌡️ Tropical

Rivulated mutton hamlet

Alphestes multiguttatus Günther, 1867
Max Length
30 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
32.00/100
Typical Length
18 cm
Depth Zone
demersal

📖 Overview

A demersal, rocky reef and shallow-water species, cryptically colored and secretive. Sedentary during the day, hiding in crevices or lying among seaweed, and rely on their effective camouflage to escape detection (sometimes lying and partly covering itself with sand). Nocturnal predators feeding mainly on benthic crustaceans.

Scientific Name
Alphestes multiguttatus
Authority
Günther, 1867
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
30 cm
Trophic Level
3.5
Resilience
High
Vulnerability
32.00/100
Migration
Non-migratory
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 11; Dorsal soft rays (total): 18 - 20; Anal spines: 3; Anal soft rays: 9. Distinguished by the following characteristics: Dorsal fin with 11 spines and 18-20 rays: anal fin with 2 spines and 9 rays: pectoral fins with 17-19 rays; caudal fin rounded; smooth scales; lateral line scales 54-62; lateral line scale series 67-75; depth of body distinctly less than HL, depth contained 2.7-3.1 times in SL; caudal peduncle depth 11-12% SL; eye diameter slightly greater than snout length, 4.3-4.7 times HL; rounded preopercle, rear edge distinctly serrate with a large spine (usually hidden by skin) directed downward and forward at the angle; gill rakers 6-8 on upper limb, 14-16 on lower limb .: fusiform / normal.

🌀 Behaviour

Behavioural data for Rivulated mutton hamlet is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; demersal; non-migratory; depth range ? - 30 m . Tropical; 32°N - 5°N, 115°W - 76°W

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Migration
Non-migratory
Trophic Level
3.5±0.5
🌙 Nocturnal

📐 Morphometrics

Length–Weight Relationship: W = 0.01122 × L3.04 (TL)
Max TL
30cm
Dorsal Spines
11
Dorsal Rays
19
Anal Spines
3
Anal Rays
9

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2016

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
32.00/100
Low vulnerability
Trophic Level
3.5
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Günther, 1867

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Pacific Guaseta · Rock Bass · Sea Bass · rivulated mutton hamlet
🌍CES kanic skvrnkovaný
🇫🇷French Varech Veine · Vareche Veine
🇮🇹Italian Cernia di roccia rigata
🇵🇹Portuguese Garoupa-marmoreada-costeira
🇪🇸Spanish Cabrilla · Cherne · Colorado · Companero De Mero · Guaseta Rayado · Guato · Mero · guaseta rayada
🇨🇳Chinese 密斑鴛鴦鮨

Scientific Synonyms

Scientific Name Author Year Status
Epinephelus multiguttatus Günther 1867 Synonym
Plectropoma multiguttatum Günther 1867 Synonym

📚 Scientific References

13 publications cited

General
  1. Froese, R. and Pauly, D. (Editors) (2024). FishBase. World Wide Web electronic publication. FishBase Consortium. Link ↗
Conservation
  1. IUCN (2024). The IUCN Red List of Threatened Species. Version 2024-1. International Union for Conservation of Nature. Link ↗
Taxonomy
  1. GBIF Secretariat (2024). GBIF Backbone Taxonomy. Checklist dataset. Global Biodiversity Information Facility. DOI ↗
Nutrition
  1. USDA Agricultural Research Service (2024). FoodData Central. USDA National Nutrient Database. United States Department of Agriculture. Link ↗
Fishery
  1. NOAA Fisheries (2024). FishWatch: U.S. Seafood Facts. National Oceanic and Atmospheric Administration. Link ↗
  2. Monterey Bay Aquarium (2024). Seafood Watch Recommendations. Monterey Bay Aquarium Foundation. Link ↗
Aquaculture
  1. FAO Fisheries and Aquaculture Department (2024). The State of World Fisheries and Aquaculture. Food and Agriculture Organization of the United Nations. Link ↗
Distribution
  1. Kaschner, K., Kesner-Reyes, K., Garilao, C., Segschneider, J., Rius-Barile, J., Rees, T., Froese, R. (2024). AquaMaps: Predicted range maps for aquatic species. AquaMaps. Link ↗
Ecology
  1. Nelson, J.S., Grande, T.C., Wilson, M.V.H. (2016). Fishes of the World. 5th edition. John Wiley & Sons.
Behavior
  1. Helfman, G.S., Collette, B.B., Facey, D.E., Bowen, B.W. (2009). The Diversity of Fishes: Biology, Evolution, and Ecology. 2nd edition. Wiley-Blackwell.
Morphology
  1. Froese, R. (2006). Cube law, condition factor and weight-length relationships: history, meta-analysis and recommendations. Journal of Applied Ichthyology, 22(4), 241-253. DOI ↗
Toxicology
  1. Halstead, B.W., Auerbach, P.S., Campbell, D. (1988). A Colour Atlas of Dangerous Marine Animals. Wolfe Medical Publications. Wolfe Medical.
Reproduction
  1. Balon, E.K. (1975). Reproductive Guilds of Fishes: A Proposal and Definition. Journal of the Fisheries Research Board of Canada, 32(6), 821-864.

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 12 records indexed .

Occurrence density from GBIF View GBIF records ↗

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