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Doryrhamphus japonicus  Araga & Yoshino, 1975

Honshu pipefish
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Doryrhamphus japonicus   AquaMaps   Data sources: GBIF OBIS
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Image of Doryrhamphus japonicus (Honshu pipefish)
Doryrhamphus japonicus
Picture by Zuberbuhler, T.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Syngnathiformes (Pipefishes and seahorses) > Syngnathidae (Pipefishes and seahorses) > Syngnathinae
Etymology: Doryrhamphus: Greek, dory = lance + Greek, rhamphos = bill, beak (Ref. 45335).

Environment / Climate / Range Ecology

Marine; reef-associated; depth range 1 - 30 m (Ref. 90102).   Temperate

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

Western Pacific: Japan to Indonesia. Also from Korea Rep.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 8.5 cm TL male/unsexed; (Ref. 559)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 21-23; Anal soft rays: 4. Body orange yellow when fresh. Trunk rings 20, tail rings 15. Lateral trunk ridge continuous with inferior tail ridge; superior trunk and tail ridges extending forward over 4 trunk rings. Three serrated ridges dorsally on snout, the median ridge heavily serrated. Body ridges illustrating single spine except anterior six of superior trunk ridge and 3 lateral trunk ridge which has double spines. No ventrolateral projection on the snout.

Biology     Glossary (e.g. epibenthic)

Inhabits small caves in sublittoral rocky reefs. Reported from tide pools to depths of at least 25 m offshore, but mostly seen in shallow depths (Ref. 48635). Ovoviviparous (Ref. 205). The male carries the eggs in a brood pouch which is found under the tail (Ref. 205). Spawns from the end of May to September. An active cleaner that shares crevices with shrimps, large mud crabs and sometimes moray eels (Ref. 48635). Solitary or in pairs near sponges and Diadema sea urchins (Ref 90102).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Monogamous mating is observed as both obligate and genetic (Ref. 52881). Male carries the eggs in a brood pouch (Ref. 205).

Main reference Upload your references | References | Coordinator | Collaborators

Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00049 (0.00022 - 0.00110), b=3.10 (2.91 - 3.29), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.7   ±0.50 se; Based on food items.
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .