Knysna sandgoby
📖 Overview
Knysna sandgoby (Psammogobius knysnaensis), first described by Smith, 1935 is a small fish in the family Gobiidae (order Gobiiformes). Adults typically reach 7.50 cm in maximum length. It inhabits brackish estuarine and coastal transition zones between freshwater and the sea. It occurs in Subtropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Gobiidae kept in the hobby.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 7; Dorsal soft rays (total): 9 - 10; Anal spines: 1; Anal soft rays: 9 - 11. Body grey to brown in color, with white and brown spots on back; thin white bars on side; 3-6 elongate dark brown spots on midside; males with black spot on rear of 1st dorsal fin .: fusiform / normal.
🌀 Behaviour
Behavioural data for Knysna sandgoby is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Brackish; demersal. Subtropical Southeast Atlantic and Western Indian Ocean: South Africa.
🌿 Ecology
📐 Morphometrics
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
| Language | Common Names |
|---|---|
| 🇬🇧English | knysna sandgoby · Sand Goby |
| 🌍AFR | Sanddikkop |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .
👥 Community & Contribute
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