Bluedash rockskipper
📖 Overview
Adults are common on exposed outer intertidal reef flats, in areas with numerous cracks and holes. They feed on filamentous algae and associated minute invertebrates, e.g., foraminiferans, ostracods, copepods, and gastropods . Oviparous. Eggs are demersal and adhesive , and are attached to the substrate via a filamentous, adhesive pad or pedestal . Larvae are planktonic, often found in shallow, coastal waters .
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 12 - 14; Dorsal soft rays (total): 18 - 21; Anal spines: 2; Anal soft rays: 20 - 21; Vertebrae: 37 - 39. Diagnosis: Dorsal fin XII-XIV, 18-21, notched between spinous and segmented-ray portions; anal fin II, 20-21; pectoral rays 13-15 (usually 14); pelvic fin I, 3; caudal fin, procurrent rays 7, segmented rays 13. Vertebrae 12 + 25-27. Orbital cirrus simple and slender, may have a short lateral branch, less often up to 4 branches; nasal cirri short and palmate, may rarely have more than 6 branches; nuchal cirri simple and slender, may have a single branch or a ragged edge. Mandibular pores 6. Dorsal lips margin entire, ventral margin crenulated. Occipital crest absent, but large males have a low thin ridge (less than 1.8 mm); no crest or ridge in females .: elongated.
🌀 Behaviour
Behavioural data for Bluedash rockskipper is currently being reviewed.
🦐 Diet
🥚 Reproduction
Oviparous, distinct pairing .
🌍 Habitat & Distribution
Marine; reef-associated; depth range 0 - 3 m . Tropical north to Marcus Islands, south to Great Barrier Reef; throughout Micronesia; replaced by Blenniella periophthalmus in the Indian Ocean and southeast Asia from Ryukyus through Solomons to Santa Cruz Islands (Ref.
🌿 Ecology
filamentous algae and associated minute invertebrates, e
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
| Language | Common Names |
|---|---|
| 🇬🇧English | Blue-dashed Blenny · Blue-dashed Rockskipper · Bluedash Rockskipper |
| 🌍FIJ | lokuca |
| 🇫🇷French | Blennie à points bleus |
| 🇯🇵Japanese | Kotojihanakaeruuo · コトジハナカエルウオ |
| 🇵🇹Portuguese | Blênio-de-manchas-azuis |
| 🌍TAH | 'o'opu |
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Istiblennius paulus | Bryan & Herre | 1903 | Synonym |
| Salarias paulus | Bryan & Herre | 1903 | Synonym |
| Salarias tubuensis | Seale | 1906 | Synonym |
🦠 Common Diseases
The following diseases are known to affect Bluedash rockskipper.
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 10 records indexed .
👥 Community & Contribute
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