Penja fish (Genus: Sicyopterus) from Karama River, West Sulawesi, Indonesia: Growth Pattern and Habitat Characteristics

Muthiadin, Cut; Aziz, Isna Rasdianah; Hasyimuddin, Hasyimuddin; Nur, Fitriani; Sijid, St. Aisyah; Azman, Saifullah; Hadiaty, Renny Kurnia; Alimuddin, Ilham

doi:10.13057/biodiv/d211062

Cited by 5 publications

(6 citation statements)

References 57 publications

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“…Water quality parameters may also play an indirect role in S. auxilimentus movement due to the influence of fluctuating conditions on the distribution of prey species. Water conditions of Laine waterfall, Sangihe island, such as salinity 3.5 psu, temperature 23-25°C, and dissolved oxygen 7.7-9.2 mg/l, were ideal for S. auxilimentus habitat (Bell and Brown 1995;Ellien et al 2011;Keith et al 2011a;Watanabe et al 2014;Muthiadin et al 2020). Future research, incorporating long-term trends with these short-term results, would help form a more complete understanding of the degree to which environmental parameters influence movement of the species.…”

Section: Contemporary Records and Their Habitatmentioning

confidence: 99%

Short Communication: Presence of the vulnerable freshwater goby Sicyopus auxilimentus (Gobiidae, Sicydiinae) on Sangihe Island, Indonesia

Hasan

Valen²,

Islamy

et al. 2021

Biodiversitas

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Abstract. Hasan V, Valen FS, Islamy RA, Widodo MS, Saptadjaja AM, Islam I. 2021. Short Communication: Presence of the vulnerable freshwater goby Sicyopus auxilimentus (Gobiidae, Sicydiinae) on Sangihe Island, Indonesia. Biodiversitas 22: 571-579. A single specimen of freshwater goby Sicyopus auxilimentus was photographed and collected using fish traps between 8 and 15 September 2019 in the Laine waterfall, Sangihe island district, North Sulawesi Province, Indonesia. S. auxilimentus is amphidromous that live in both freshwater and marine environments. This species is currently listed as Vulnerable (VU) within the IUCN Red List Status. The specimen was identified as male S. auxilimentus based on the coloration of the preserved specimen: background yellowish; scale edges brown; posterior flanks and caudal peduncle orange; first dorsal fin black, second dorsal fin dusky black; pectoral fin slightly brown; ventral fin slightly dusky; anal fin blackish; caudal fin dusky brown. Specific morphological features were as follows: the base of the first dorsal fin was not connected to the second dorsal fin base; distance between the base of first and second dorsal fin was generally less than half of eye diameter; ventral fin rays were fused to belly only between fifth rays; posterior margin of caudal fins rays was rounded; scales were all ctenoid; scales appeared on the caudal peduncle, and between anal and second dorsal fins; anterior to which, scales became widely spaced and did not imbricate. Meristic characters were as follows: first dorsal fin rays VI; second dorsal fin rays I+9; ventral fin rays I+5; pectoral-fin rays 14; anal-fin rays I+9; caudal-fin rays 13; scales in lateral series 13; scales in zigzag series 7; scales in transverse series backward 7; scales in transerves series forward 4. This finding is considered the first record in Sulawesi and the fifth from Indonesian waters after findings in Halmahera, Java, Bali and Lombok. This record enhances the understanding of the distribution of S. auxilimentus in Indonesian waters. Monitoring is needed to assess the possibility of Sangihe Island being a growth ground, spawning ground, and/or on the migration route of S. auxilimentus. In the Laine waterfall, Sangihe island, freshwater conditions were as follows: salinity 3.5 psu, temperature 23-25°C, and dissolved oxygen 7.7-9.2 mg/l, which were ideal habitat for S. auxilimentus. S. auxilimentus from Sangihe Island, had 0.000 genetic distance than from S. auxilimentus from Bali, while the next closest genetic distance was S. zosterophorus at genetic distance of 0.090. In addition to onsite conservation, domestication programs are needed to increase commercial availability without depending on natural catches.

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Section: Contemporary Records and Their Habitatmentioning

confidence: 99%

Short Communication: Presence of the vulnerable freshwater goby Sicyopus auxilimentus (Gobiidae, Sicydiinae) on Sangihe Island, Indonesia

Hasan

Valen²,

Islamy

et al. 2021

Biodiversitas

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“…Benthic algae of these two types are often found attached to rocks. The bedrock in fast-flowing river waters is a suitable growing medium for these two types of benthic algae and other species from the Bacillariophyceae class [35]. This makes rocky waters and fast currents the primary habitat preferences of the green riffle goby and other gobiid fishes [36,37].…”

Section: Resultsmentioning

confidence: 99%

Diet composition and feeding strategy of larvae and juveniles of green riffle goby, Stiphodon elegans in Cimaja Estuary, Indonesia

Amaliah,

Affandi,

Simanjuntak

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Green riffle goby, Stiphodon elegans, is an amphidromous goby living in Cimaja River, Sukabumi. Postflexion and juvenile stages of this species migrate from the sea to the river estuary for the recruitment process both in the day and nighttime. The presence of prey strongly influences the success of the recruitment process. The present study, therefore, aims to reveal the diet preferences and feeding strategies of postflexion larvae and juveniles of the green riffle goby during the recruitment process. Postflexion larvae and juveniles of S. elegans were collected day and nighttime using a lift net from December 2020 to May 2021 in the Cimaja River estuary. A total of 13,955 larvae and juveniles were captured. For diet analysis, 455 fish larvae and juveniles were analyzed, consisting of 47 larvae (8.9-11.8 BL) and 408 juveniles (11.9-21.8 BL). The diet composition of postflexion larvae comprised five genera from three different classes of benthic microalgae and zoobenthic. In comparison, fish juveniles’ prey composition comprised 15 genera from 5 different classes of benthic microalgae and zoobenthic. The postflexion larva tends to be more specialized than the juvenile in utilizing prey. There is no significant difference in the diet composition and feeding strategy of postflexion larvae and juveniles during the day and nighttime (p>0.05).

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“…The pectoral fins are black with white bands at the edges, and there is a hint of orange with red and blue stripes at the tip of the dorsal and ventral caudal fins. As a comparison, Muthiadin et al (2020) reported that the body shape of S. longifilis is fusiform and elongated with whitish brown coloration and seven-eight black bands on the body. Although they did not report the results of tracking the morphology of males and females adults separately, the ventral margin of the eye of S. longifilis is marked with triangular black to the posterior end of the mouth.…”

Section: Discussionmentioning

confidence: 99%

Morphological characteristic and truss morphometric analysis of amphidromous goby (‘nike') (Teleostei: Gobiiformes) in Bone River, Gorontalo, Indonesia

PASISINGI,

SUCI,

PANIGORO

et al. 2024

Biodiversitas

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Abstract. Pasisingi N, Suci D, Panigoro C, Kadim MK. 2024. Morphological characteristic and truss morphometric analysis of amphidromous goby (‘nike') (Teleostei: Gobiiformes) in Bone River, Gorontalo, Indonesia. Biodiversitas 25: 223-231. One of the preferred fish resources in the Gorontalo region is amphidromous goby species, commonly known by local community as nike fish. In rivers, at the adult stage, these fish are morphologically and potentially morphometrically not necessarily distinguishable among species and between sexes. This research aimed to identify the morphological and morphometric truss characters that distinguish the sexual characteristics of goby fishes in the Bone River, Gorontalo. Fish samples were purposefully collected from eight sites along the river, spanning from upstream to downstream, using a backpack electrofishing device. Sampling occurred in March and November 2022, with morphological analysis and measurements conducted on 336 individuals. The morphometric method measured data from 13 points on the sample body, forming 28 combinations of truss distance characters (A1-A3; B1-B12; C1-C10; D1-D3) connecting these points. Morphologically, the samples were identified as three species, namely Sicyopterus longifilis, Belobranchus belobranchus, and Awaous grammepomus. This study revealed distinctions in morphological characters between male and female individuals. In S. longifilis, males exhibited a relatively slimmer body shape compared to the rounded form of females. Male B. belobranchus displayed more striking coloration than females, while male A. grammepomus featured a lighter brown body color than the paler females. All the morphometric truss characters in this study can be reliably used as a sexual distinguishing characteristic in S. longifilis. As for species B. belobranchus, B7 truss cannot be considered a differentiator. In A. grammepomus, thirteen truss characters (B3, B4, B6, B7, B8, B10, B12, C3, C6, C7, C9, C10, D1) cannot be used to differentiate males and females.

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Penja fish (Genus: Sicyopterus) from Karama River, West Sulawesi, Indonesia: Growth Pattern and Habitat Characteristics

Cited by 5 publications

References 57 publications

Short Communication: Presence of the vulnerable freshwater goby Sicyopus auxilimentus (Gobiidae, Sicydiinae) on Sangihe Island, Indonesia

Short Communication: Presence of the vulnerable freshwater goby Sicyopus auxilimentus (Gobiidae, Sicydiinae) on Sangihe Island, Indonesia

Diet composition and feeding strategy of larvae and juveniles of green riffle goby, Stiphodon elegans in Cimaja Estuary, Indonesia

Morphological characteristic and truss morphometric analysis of amphidromous goby (‘nike') (Teleostei: Gobiiformes) in Bone River, Gorontalo, Indonesia

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