Teleostei (teleosts) >
Syngnathiformes (Pipefishes and seahorses) >
Syngnathidae (Pipefishes and seahorses) > Nerophinae
Etymology: Microphis: Greek, mikros = small + greek, ophis = serpent (Ref. 45335).
Eponymy: Anders Adolph Retzius (1796–1860) was Professor in Anatomy and Physiology at the Karolinska Institute, Stockholm. [...] (Ref. 128868), visit book page.
More on author: Bleeker.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Tropical; 19°N - 21°S
Asia: Indonesia, the Philippines and Timor-Leste.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 7 - ? cm
Max length : 14.5 cm SL male/unsexed; (Ref. 5316)
Dorsal soft rays (total): 36 - 39. This species is distinguished by the following characters: tail rings 28-30), dorsal-fin rays 36-39; subdorsal tail rings 7-8 (Ref. 132364).
Body shape (shape guide): elongated; Cross section: angular.
Majority of collections are from freshwater streams and rivers. Probably reaches 14.5 cm SL. Ovoviviparous (Ref. 205). The male carries the eggs in a brood pouch which is found under the tail (Ref. 205).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Males may be brooding at 6.6 cm SL (Ref. 5316).
Haÿ, V., M.I. Mennesson, C. Lord and P. Keith, 2023. Why several when one can unite them all? Integrative taxonomic revision of Indo-Pacific freshwater pipefish (Nerophinae). Zool. J. Linn. Soc. 198(4):923-956. (Ref. 132364)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00037 (0.00016 - 0.00085), b=3.18 (2.99 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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