Galapagos thread herring
📖 Overview
Galapagos thread herring (Opisthonema berlangai) is a ray-finned fish of the family Dorosomatidae. It inhabits marine (saltwater) waters in pelagic environments. This species can reach a maximum total length of 26 cm. It occurs at depths between 0 and 50 metres. With a trophic level of 3.3, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 0; Dorsal soft rays (total): 13 - 21; Anal spines: 0; Anal soft rays: 15 - 17. The filamentous last dorsal fin ray distinguishes this species from members of any other eastern Pacific clupeoid genus. Lower gill rakers 50 to 87 in fishes over 14 cm standard length (intermediate between O. medirastre with 41 to 69 and O. libertate with 63 to 110, but neither of these occur in the Galapagos Islands).: fusiform / normal; Cross section: compressed.
🌀 Behaviour
Behavioural data for Galapagos thread herring is currently being reviewed.
🦐 Diet
Diet information for Galapagos thread herring is currently being compiled.
🥚 Reproduction
Reproduction data for Galapagos thread herring is currently being compiled.
🌍 Habitat & Distribution
Marine; pelagic-neritic; depth range 0 - 50 m . Tropical; 3°N - 4°S, 94°W - 89°W Southeast Pacific: endemic to the Galapagos Islands.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) — 4 records indexed .
👥 Community & Contribute
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