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🌊 Marine Least Concern 🍽️ Edible 🌡️ Tropical

Cocos frill-goby

Bathygobius cocosensis Bleeker, 1854
Max Length
12 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
0–10 m
Climate
Tropical
Resilience
High
Vulnerability
23.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Lives among rubble, in sand pockets, or on reef rock and is abundant on silty intertidal reef flats . Benthic . Gut analysis composed of polychaetes, isopods, amphipods, and brachyurans .

Scientific Name
Bathygobius cocosensis
Authority
Bleeker, 1854
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
12 cm
Depth Range
0–10 m
Latitude
28°S – 32°N
Trophic Level
3.5
Resilience
High
Vulnerability
23.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Teleostei
Order
Gobiiformes
Gobiiformes
Family
Gobiidae
Gobiidae
Genus
Bathygobius
Bathygobius
Species
Cocos frill-goby
Bathygobius cocosensis

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 1; Anal soft rays: 8. Characterized by mottled brown overall color, with five alternating irregular whitish and brown blotches or saddles dorsally on body; lower half of side with 5-7 rectangular brown blotches; white spots and blotches on cheek and operculum; upper 4-5 pectoral rays branched to base, tips membrane-free; rounded caudal fin; longitudinal scale series 37-38; predorsal scales 10-12, nearly reaching to above rear margin of preopercle; scales absent on cheek and operculum; ctenoid body scales, becoming cycloid on abdomen, breast and nape; depressed head, width greater than depth; depth of body 5.0 in SL .: elongated; Cross section: circular.

🌀 Behaviour

Behavioural data for Cocos frill-goby is currently being reviewed.

🦐 Diet

Diet information for Cocos frill-goby is currently being compiled.

🥚 Reproduction

Reproduction data for Cocos frill-goby is currently being compiled.

🌍 Habitat & Distribution

Marine; brackish; reef-associated; depth range 0 - 10 m , usually 0 - 2 m . Tropical; 32°N - 28°S East Africa to Johnston, Marquesas and Tuamoto islands, north to southern Japan, south to the southern Great Barrier Reef and Rapa Islands; Marianas and Marshall Islands in Micronesia.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish 🪸 Reef Associated
Trophic Level
3.5±0.6

📐 Morphometrics

Length–Weight Relationship: W = 0.00741 × L3.09 (TL)
Max TL
12cm
Dorsal Spines
7
Dorsal Rays
9
Anal Spines
1
Anal Rays
8

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2017

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
23.00/100
Low vulnerability
Trophic Level
3.5
Predator
Body Shape
Elongated
Climate Zone
Tropical
Latitude Range
32°N – 28°S
Described By
Bleeker, 1854

🍽️ Edibility & Flavour

"Cocos frill-goby is an edible species."

✗ Not for Raw
✓ Fresh Indicators
  • Clear, bright eyes — cloudy eyes indicate age
  • Firm flesh that springs back when pressed
  • Fresh ocean smell, never strong or ammonia-like
  • Bright red or pink gills, not grey or brown
  • Shiny, moist skin with scales tightly attached
✗ Avoid If
  • Cloudy or sunken eyes
  • Strong fishy or ammonia odour
  • Soft, mushy flesh that doesn't spring back
  • Discoloured or dry flesh
Best Cooking Methods
Baking Grilling Pan-frying

Nutrition

Per 100g cooked - Source: USDA FoodData Central

Nutrient Amount
Protein 18.4 g
Omega-3 (total) 91 mg

🔬 Mercury Safety

Mercury data for Cocos frill-goby has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.

🌿 Sustainability

Best Choice
Healthy stocks, low impact
Good Alternative
Well-managed, minor concerns
Use Caution
Check sourcing and season
Avoid
Overfished or high impact

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Coco's Frillgoby · Cocos Frill-goby · Cocos Frillgoby · Cocos Goby · Cocos frillfin goby · Common Goby · Dusky Sand-goby · Tidepool Goby
🇫🇷French Gobie de Cocos
🇯🇵Japanese Sujikumohaze · スジクモハゼ
🇵🇹Portuguese Góbio-de-Cocos
🌍TAH 'o'opu
🇨🇳Chinese 椰子深鰕虎 · 椰子深鰕虎魚 · 深鰕虎 · 狗甘仔 · 甘仔魚

Scientific Synonyms

Scientific Name Author Year Status
Bathygobius fuscus pulcher Fowler 1945 Synonym
Bathygobius versicolor Fowler 1945 Synonym
Chlamydes versicolor Fowler 1945 Synonym
Gobius cocosensis Bleeker 1854 Synonym
Gobius elmeri Herre 1940 Synonym
Gobius homocyanus Vaillant & Sauvage 1875 Synonym
Gobius sandvicensis Günther 1880 Synonym
Rhinogobius corallinus Jordan & Seale 1906 Synonym
Rhinogobius ophthalmicus Weber 1909 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 5 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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