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Redigobius bikolanus (Herre, 1927)

Speckled goby
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Native range | All suitable habitat | Point map | Year 2050
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Redigobius bikolanus   AquaMaps   Data sources: GBIF OBIS
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Philippines country information

Common names: Bia, Goby of mountain streams
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Reported from Comon and Haya rivers, Bohol; Coron, Busuanga; Lake Mainit, Surigao; Pansipit R., and Yambo Lake, Luzon; Naujan Lake, Mindoro (Ref. 280), Lake Taal, 1995 survey (Ref. 12165, 13446), also in Ref. 80679; present as part of gill net catch composition in Talisay area in Taal Lake (Ref. 81207). Specimens were collected in 1993 from Calbiga-a creek, Lagu Lagu creek, Ambacan River at Makinhas and Butigan, and a small creek in Guadalupe, Leyte in 1993 and also from Inuntan, Basey River, Samar (Ref. 7223). Museum: Lake Naujan, CAS 30967 (holotype of Vaimosa montalbani, 2.0 cm SL) (Ref. 43716). Also Ref. 4735, 5259, 2847, 7050, 7223, 13500, 94476.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rp.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Larson, H.K., 2001
National Database:

Common names from other countries

Classification / Names आम नाम | उपशब्द | Catalog of Fishes(वर्ग, प्रजाति) | ITIS | CoL | WoRMS | Cloffa

> Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobionellinae
Etymology: Redigobius: Latin,. Redere = to come back + Latin, gobius = gudgeon.
  More on author: Herre.

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

समुद्री; स्वच्छ जल, अलवण जल; खारा बेनथोपिलाजिक; ऐम्फिढरोमस (Ref. 59012); गहराई सीमा 0 - 5 m (Ref. 86942).   Tropical; 21°C - 28°C (Ref. 12468); 35°N - 6°N

वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | Faunafri

Asia and Oceania: Japan southward to the Philippines, Indonesia, New Guinea and Australia. Reported from Africa: south to Coffee Bay, South Africa (Ref. 2798) and Seychelles (Ref. 4343). Widely distributed over the West tropical Pacific, from Japan to the Philippines, Indonesia, New-Guinea, North of Australia, Vanuatu and New Caledonia (Ref. 87781). The Redigobius genus is actually being revised and especially the bikolanus group that should be splitted into several taxa, leading to a revision of the group distribution also (Ref. 87781).

आकार / वज़न / Age

Maturity: Lm ?  range ? - ? cm
Max length : 4.9 cm TL पुल्लिंग / अलिंग; (Ref. 11344)

Short description पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स

पृष्ठीय रीढ़ (सम्पूर्ण) : 7; पृष्ठीय सौफट रेज़ (सम्पूर्ण) : 6 - 8; गुदा कांटा: 1; ऐनल सौफट रेज़: 6 - 8. Distinguished by the following characteristics: 2-3 dark spot at caudal base (Ref. 2798); Redigobius with dusky scale margins forming network pattern; side of body variably marked with series of dark brown blotches or bars, one blackish, slightly oblique, narrow bar on side of body, second blackish narrow bar present on lower half of body; four distinct dark brown to blackish spots along mid-ventral line at anal fin; second dorsal rays I,6-8; anal rays I,6-8; pectoral rays 14-18; longitudinal scales 21-27; TRB 6 1/2 to 8 1/2; predorsal scales 5-8 (Ref. 84480).

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ epibenthic)

Adults inhabit creeks, rivers and brackish estuaries (Ref. 2847, 44894). Found in tidal streams (Ref. 4343, 44894). Sometimes seen upstream a short distance from the tidal zone. Feed on small fishes and invertebrates. Not seen in markets (Ref. 12693).

Life cycle and mating behavior Maturities | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा

Main reference Upload your references | संदर्भ | संयोजक | सहयोगीयो

Larson, H.K., 2001. A revision of the gobiid fish genus Mugilogobius (Teleostei: Gobioidei), and its systematic placement. Rec. West. Aust. Mus. (Suppl. No. 62):1-233. (Ref. 43716)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 26 August 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

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इंटरनेट स्रोत

Estimates based on models

Preferred temperature (Ref. 115969): 22.4 - 29, mean 28.4 (based on 586 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00442 - 0.02163), b=3.05 (2.86 - 3.24), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.3   ±0.43 se; based on food items.
लौटाव (Ref. 120179):  माध्यम, न्यूनतम जनसंख्या दुगनी होने का समय 1.4 - 4.4 वर्ष। (Fec=1,000).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).