Indonesia country information

Common names: Ikan njanjan
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from Borneo, Sumatra, Java and Madura.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/id.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Kottelat, M., A.J. Whitten, S.N. Kartikasari and S. Wirjoatmodjo, 1993
National Database:

Common names from other countries

长身拟平牙鰕虎鱼, Lanzettgrundel, Chewa, ... more

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Gobiiformes (Gobies) > Oxudercidae (Mudskippers) > Periophthalminae
Etymology: Pseudapocryptes: Greek, pseudes = false + Greek, apo = outside, far away + Greek, kryptos = hidden (Ref. 45335).
More on author: Cuvier.

Environment: milieu / climate zone / depth range / distribution range Ekologi

; sötvatten; brackvatten bottenlevande; amfidrom (Ref. 51243). Tropical; 23°C - 28°C (Ref. 12468)

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Indo-Pacific: India to Tahiti and north to China. Common in the Mekong delta.

Length at first maturity / Size / Vikt / Age

Maturity: L_m 15.4 range ? - ? cm
Max length : 20.0 cm TL hane/ej könsbestämd; (Ref. 12693)

Short description Bestämningsnycklar | Morfologi | Morfometri

Distinguished by the following characteristics: Anal fin with 28-31 total elements; body depth 9.9-13.6% SL; head length 14.8-22.0% SL; head depth 7.8-11.4% SL; pectoral fin length 10.4-13.4% SL; pelvic fin length 9.0-11.5% SL; few brown spots, if any, on body (Ref. 5218).

Obligate air-breathing (Ref. 126274); Found in mudflats of estuaries and the freshwater tidal zone of rivers (Ref. 12693). Amphibious air-breather (Ref. 31184).

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

Kottelat, M. and A.J. Whitten, 1996. Freshwater fishes of Western Indonesia and Sulawesi: additions and corrections. Periplus Editions, Hong Kong. 8 p. (Ref. 13275)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 01 March 2007

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fiskeri: mindre kommeriell

FAO(Publication : search) | FishSource |

Ytterligare information

Trophic ecology
Födoslag
Diet compositions
Food consumptions
Food rations
Predatorer

Ecology
Ekologi
Home ranges

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances

Life cycle
Reproduktion
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larver
Larvdynamik

Distribution
Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
BRUVS - Videos

Anatomy
Gill areas
Hjärnstorlek
Otoliths

Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fiskljud
Diseases / Parasites
Toxicities (LC50s)

Genetics
Genetik
Electrophoreses
Heritabilities

Human related
Aquaculture systems
Vattenbruksprofiler
Avelslinjer
Ciguatera cases
Stamps, coins, misc.

Outreach
Medarbetare

Taxonomy
Populärnamn
synonymer
Morfologi
Morfometri
Bilder

References
referenser

Verktyg

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Point data | Populärnamn | Photos

Internet-källor

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00724 (0.00401 - 0.01308), b=2.93 (2.77 - 3.09), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trofisk nivå (Ref. 69278): 3.3 ±0.4 se; based on size and trophs of closest relatives

Resiliens (Ref. 120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (22 of 100).

Price category (Ref. 80766): Very high.

Pseudapocryptes elongatus (Cuvier, 1816)