Signalfin goby
📖 Overview
Signalfin goby (Fusigobius signipinnis), first described by Hoese & Obika, 1988 is a tiny fish in the family Gobiidae (order Gobiiformes). Adults typically reach 4.90 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 3 to 30 metres. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.The species is important as a food fish, kept in the aquarium hobby, and considered a sustainable seafood option under current management. As a member of the Gobiidae, it shares life-history and morphological traits with its relatives in the group.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 1; Anal soft rays: 8. Males have a taller, more heavily pigmented first dorsal fin; characterized by translucent grey body color; red-brown iris; side of body with tiny brown spots; first two membranes of first dorsal fin with black tip and large brown blotch below; pelvic fins united only at bases; absence of pelvic frenum; rounded caudal fin; longitudinal scale series 23-25; mainly ctenoid scales except cycloid on breast, base of pectoral fin and side of nape to above rear margin of preopercle; scales absent on operculum; median predorsal scales absent; opening of gill extending to level slightly anterior to posterior edge of preopercle; depth of body 4.7-5.5 in SL .: fusiform / normal.
🌀 Behaviour
Behavioural data for Signalfin goby is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; reef-associated; depth range 3 - 30 m , usually 5 - 25 m . Tropical; 23°C - 27°C
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🍽️ Edibility & Flavour
"Signalfin goby is an edible species."
- 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
- Cloudy or sunken eyes
- Strong fishy or ammonia odour
- Soft, mushy flesh that doesn't spring back
- Discoloured or dry flesh
⚡ Nutrition
Per 100g cooked - Source: USDA FoodData Central
| Nutrient | Amount |
|---|---|
| Protein | 18.3 g |
| Omega-3 (total) | 165 mg |
🔬 Mercury Safety
Mercury data for Signalfin goby has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.
🌿 Sustainability
🔬 Full Nutritional Profile
Per 100g - Raw, per 100g - Source: USDA FoodData Central templates (generic fish average)
📊 Population Dynamics
| Year | Region | Index | Notes |
|---|---|---|---|
| - | - | - |
🌐 Names & Taxonomy
| Language | Common Names |
|---|---|
| 🇬🇧English | Fine-spotted Sand-goby · Flasher Sand-goby · Flasher Sandgoby · Signal Goby · Signalfin Goby · Signalfin Sandgoby |
| 🇯🇵Japanese | Hirefurisankakuhaze · ヒレフリサンカクハゼ |
| 🇨🇳Chinese | 斑鰭紡錘鰕虎 · 斑鰭紡錘鰕虎魚 |
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Coryphopterus signipinnis | Hoese & Obika | 1988 | Synonym |
| Fusigobius signipirris | Hoese & Obika | 1988 | Synonym |
🦠 Common Diseases
The following diseases are known to affect Signalfin goby.
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .
👥 Community & Contribute
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