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Teleostei (teleosts) > Syngnathiformes (Pipefishes and seahorses) > Syngnathidae (Pipefishes and seahorses) > Nerophinae
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; depth range ? - 5 m (Ref. 86942). Tropical; 19°N - 21°S

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Asia and Oceania: Indonesia and the Philippines southeastward to Ponape [=Pohnpei] and Samoa.

Length at first maturity / Size / Weight / Age

Maturity: L_m ?, range 7 - ? cm
Max length : 14.5 cm SL male/unsexed; (Ref. 5316)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 32 - 42; Anal soft rays: 3 - 4. Body rings: Trunk 16; tail 30-31 (Ref. 6820).

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).

Main reference Upload your references | References | Coordinator | Collaborators

Dawson, C.E., 1985. Indo-Pacific pipefishes (Red Sea to the Americas). The Gulf Coast Research Laboratory Ocean Springs, Mississippi, USA. (Ref. 5316)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 27 November 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 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): 3.7 ±0.6 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).

Lophocampus retzii (Bleeker, 1856)