Double-ended pipefish

Trachyrhamphus bicoarctatus

Fish
IUCN: Vulnerable

Usual depth5–48 m
Water temperature20–29 °C
Best monthsMarch, April, and October
How commonOccasional

About this species

Trachyrhamphus bicoarctatus, also known as the double-ended pipefish, is a species of marine fish belonging to the family Syngnathidae. They can be found in reefs, seagrass beds, and sandy habitats throughout the Indo-Pacific from East Africa to New Caledonia and from Japan to Australia. Males of this species are considered mature when they reach approximately 26 centimeters long, but adults can grow to be lengths of 40 centimeters. Reproduction occurs through ovoviviparity in which males brood eggs before giving live birth.

Text from the Wikipedia article “Trachyrhamphus bicoarctatus”, licensed CC BY-SA 4.0. Read the article

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

January: 5 records
February: 3 records
March: 8 records
April: 9 records
May: 8 records
June: 3 records
July: 1 records
August: 1 records
September: 4 records
October: 10 records
November: 8 records
December: 1 records

Depth and water temperature

Depth

Mostly recorded at 5–48 m · Deepest record: 128 m

0–10 m: 4 records
10–20 m: 10 records
20–30 m: 7 records
30–40 m: 2 records
40–50 m: 1 records
50–60 m: 1 records
60–70 m: 0 records
70–80 m: 0 records
80–90 m: 0 records
90–100 m: 0 records
100–110 m: 0 records
110+ m: 1 records

Water temperature

Recorded in surface water of 20–29 °C

20–22 °C: 6 records
22–24 °C: 21 records
24–26 °C: 10 records
26–28 °C: 46 records
28–30 °C: 16 records

Names and classification

English: Double-ended pipefish, Bend Stick Pipefish, Bentstick Pipefish, Chocolate Pipefish, double-ended pipefish, Ringed Pipefish, Short-tailed Pipefish, Stick Pipefish

Names in 4 more languages

German: Schwanzlose Seenadel
French: Syngnathe à deux points, Syngnathe courbé
Japanese: Wakayoji, ワカヨウジ
Simplified Chinese: 海龍, 短吻粗吻海龍, 短尾粗吻海龍

Other scientific names: Ichthyocampus annulatus, Ichthyocampus maculatus, Syngnathus bicoarctatus, Syngnathus brevicaudus, Syngnathus zanzibarensis, Trachyramphus bicoarctata, Trachyramphus bicoarctatus, Trachyrhamphus bioarctatus, Yozia bicoarctata, Yozia bioarctata, Yozia compitalis, Yozia wakanourae, Ypzia bicoarctata

Similar species

Banded Pipefish
Corythoichthys flavofasciatus
Bloodspot Pipefish
Corythoichthys haematopterus
Banded pipefish
Corythoichthys intestinalis
Bluestripe pipefish
Doryrhamphus excisus
Banded Pipefish
Dunckerocampus dactyliophorus
Bargibant's Pygmy Seahorse
Hippocampus bargibanti

Sources and credits

Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).

Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
Conservation status as published by GBIF (IUCN Red List).
211 open-data records from 1857 to 2009.

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