Doryrhamphus janssi  (Herald & Randall, 1972)

Janss' pipefish
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Doryrhamphus janssi   AquaMaps   Data sources: GBIF OBIS
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Image of Doryrhamphus janssi (Janss
Doryrhamphus janssi
Picture by Thuaibah Tanzil, J.I.

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 0 - 35 m (Ref. 1602).   Tropical; 19°N - 29°S

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 14.0 cm TL male/unsexed; (Ref. 48635)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 22-25; Anal soft rays: 4. Superior trunk and tail ridges discontinuous; inferior trunk ridge ending on anal ring; lateral trunk ridge continuous with inferior tail ridge; body rings 16; tail rings 21-23.

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

Western Central Pacific: Gulf of Thailand to the Solomon Islands, north to the Philippines, south to Queensland; Belau and Truk in Micronesia.

Biology     Glossary (e.g. epibenthic)

Found in tide pools and reef crevices. Also found in sheltered inner reefs, usually in caves with sponges and below large plate corals. Ovoviviparous (Ref. 205). The male carries the eggs in a brood pouch which is found under the tail (Ref. 205). Very active cleaner and has cleaning station that is visited by apogonids and damsels where adults work in pairs (Ref. 48635). Minimum depth from Ref. 58018. Solitary or in pairs (Ref 90102).

Main reference Upload your references | References | Coordinator | Collaborators

Myers, R.F., 1991. Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p.

IUCN Red List Status (Ref. 90363)

Threat to humans

  Harmless




Human uses

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

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | Public aquariums | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5156   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00055 (0.00024 - 0.00126), b=3.11 (2.92 - 3.30), based on LWR estimates for this Subfamily-BS (Ref. 93245).
Trophic Level (Ref. 69278):  3.7   ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (14 of 100) .
Price category (Ref. 80766):   Unknown.