Trophic level and position of Pterygoplichthys pardalis in Ciliwung River (Jakarta, Indonesia) ecosystem based on the gut content analysis

Elfidasari, Dewi; Wijayanti, Fahma; Sholihah, Afifatus

doi:10.13057/biodiv/d210665

Cited by 5 publications

(7 citation statements)

References 34 publications

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“…A pipette was used to place two drops of the diluted sample on the slide. Magnifications ranging from 4× to 40× were used to view the samples under a binocular Olympus CX 21 light microscope (Shinjuku, Tokyo, Japan) [ 17 , 51 ]. The fish stomach contents were identified using relevant identification keys [ 52 , 53 , 54 ].…”

Section: Methodsmentioning

confidence: 99%

“…Moreover, to detect and quantify predation and food competition between alien fishes and their native counterparts, analyses of their diets have also been carried out [ 16 ]. Moreover, diet overlap has been assessed by paired diet comparisons between native and alien species [ 16 , 17 , 18 ]. Despite its value in evaluating the trophic relationship of fish species, stomach contents analysis can best consider the diet in a short-term period.…”

Section: Introductionmentioning

confidence: 99%

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Invasion Risk and Potential Impact of Alien Freshwater Fishes on Native Counterparts in Klang Valley, Malaysia

Saba

Ismail

Zulkifli

et al. 2021

Animals

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This study explores the potential effects of alien fishes on the native fish community, well-being, and tropic preferences in selected rivers of Klang Valley, Malaysia. Following the Aquatic Species Invasiveness Screening Kit assessment, most of the alien fishes (80%) are invasive. The alien species occurrences correlated positively (p < 0.05) with poor water quality, such as rivers with high ammonia-nitrogen and nitrite, but negatively with phosphate and dissolved oxygen. Anthropogenic characteristics, such as rivers with high pollution levels and ease of accessibility to the fish habitat, are mainly associated positively (p < 0.05) with the occurrences of alien fish species. In general, the results of fish stomach contents analyses and their associated indices, together with stable carbon and nitrogen isotopes, revealed domination by alien fishes or diet overlaps between both alien and native fish species. This finding indicates that alien fishes benefited from the impacts of the anthropogenic activities in their surrounding habitats, while their plasticity in feeding habits might help them to invade, survive, and dominate in the rivers of Klang Valley, Malaysia.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Invasion Risk and Potential Impact of Alien Freshwater Fishes on Native Counterparts in Klang Valley, Malaysia

Saba

Ismail

Zulkifli

et al. 2021

Animals

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“…The percentage diversity analysis of plankton using Shannon Diversity Index H' by Shannon and Weaver (1963) The frequency of occurrence is a simple method of data collection based on the contents of the stomach, whether it consists of either a particular or various types of organisms Elfidasari et al (2020):…”

Section: Diversity Indexmentioning

confidence: 99%

“…It is measured to determine the trophic level of fish. The results from measuring the RGL of the fish are categorized as follows: <1 for fish classified as carnivorous, 1-3 for fish classified as omnivorous, and >3 for fish classified as herbivorous (Zuliani et al 2016;Serdiati 2019;Elfidasari et al 2020).…”

Section: Relative Gut Length (Rgl)mentioning

confidence: 99%

Habitat and food habits of the endemic fish Oryzias eversi in Tana Toraja, South Sulawesi, Indonesia

LAMBA,

AMBENG,

ANDRIANI

2023

Biodiversitas

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Abstract. Lamba T, Ambeng, Andriani I. 2023. Habitat and food habits of the endemic fish Oryzias eversi in Tana Toraja, South Sulawesi, Indonesia. Biodiversitas 24: 5137-5145. The population of the medaka fish species, Oryzias eversi, was categorized as Near Threatened by the International Union for Conservation of Nature (IUCN) 2019 due to its restricted distribution and occurrence in a single threatened location. One way to protect this species from extinction is through captive breeding, which requires understanding its habitat conditions and food habits. Therefore, this research aimed to analyze the habitat conditions and food habits of Oryzias eversi (Hadiaty & Nolte, 2012) in Tilanga Pool, Tana Toraja. Purposive random sampling was used to obtain fish samples, while habitat conditions were determined by measuring environmental parameters, and the abundance and diversity of plankton. Food habits were analyzed by calculating the Index of Preponderance (IP) and Relative Gut Length (RGL). The results indicated that O. eversi inhabited a highly polluted habitat with dissolved oxygen content that ranged from 3.95 to 4.16 mg/L. The abundance of phytoplankton and zooplankton ranged from 185-435 cells/L and 10-25 ind/L, respectively. Phytoplankton diversity was in the moderate category, while zooplankton was low, with average values of Diversity Index (H’) ranging from 1.61-1.93 and 0.69-024, respectively. IP and RGL showed that O. eversi was an omnivore-carnivore fish. The average IP of zooplankton and phytoplankton ranged from 0.35-61.11% and 0.69-1.04%, respectively. Meanwhile, the RGL ranged from 0.48 to 0.62, respectively. Cyclops sp. larvae were identified as the primary food source for O. eversi with IP above 40% and Eurycercus sp. with IP range of 4-40% as additional food.

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“…In recent years armored catfish in the genus Pterygoplichthys (family Loricariidae) have invaded freshwater systems worldwide (Orfinger & Goodding, 2018). Native to South America, these fish are popular in the aquarium trade because they feed on periphyton and other organic films that accumulate on substrates (Elfidasari et al, 2020; German & Miles, 2010). Pterygoplichthys tolerate a wide range of water quality conditions, have bony plates, stout pectoral and dorsal spines, brood guarding behavior, and accessory aerial respiration, all of which facilitate invasion under a wide range of environmental conditions (Armbruster, 1998; Capps et al, 2011; Gibbs et al, 2017; Hoover et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Does invasion by armored catfish shift trophic ecology of native fishes? Evidence from stable isotope analysis

Quintana

Keppeler

Winemiller

2023

Ecology

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Popular as aquarium fish, armored catfishes from South America (Pterygoplichthys spp.) have been introduced and become invasive in tropical and subtropical regions worldwide. These ecosystem engineers can deplete basal resources (e.g., periphyton and detritus), with potential negative effects for native fauna. We studied the trophic ecology of fishes in the Usumacinta River Basin, Guatemala, where Pterygoplichthys is now widespread and locally abundant. We analyzed stable isotopes (δ13C, δ15N) in fish tissues and basal resources to assess the potential impact of Pterygoplichthys on the trophic ecology of six co‐occurring native fishes that feed at a similar trophic level (Astyanax aeneus, Dorosoma petenense, Thorichthys pasionis, Oscura heterospila, Poecilia mexicana, and Gambusia sexradiata). The study was conducted during the dry season in the La Pasion (LPR; high invasion) and San Pedro (SPR; low invasion) rivers. We compared isotopic spaces occupied by native fish and Pterygoplichthys, estimated isotopic overlap, and evaluated the trophic displacement of native species. We also evaluated the relationships of environmental factors, including the relative biomass of the invasive catfish, with δ13C and δ15N signatures. Except for P. mexicana, native species had lower isotopic overlap with the catfish in LPR. Native fish isotopic spaces were compressed and shifted toward higher trophic positions in LPR relative to SPR. Benthic food resources were important for Pterygoplichthys in both rivers, and water‐column resources had greater relative importance (RI) for native species in LPR. Native fish δ13C was significantly associated with Pterygoplichthys biomass, conductivity, and water flow velocity; and water depth and sedimentation had a significant association with native fish δ15N. Findings provide evidence that invasive Pterygoplichthys, along with environmental factors, impact the trophic ecology of native fish in the Usumacinta Basin. Additional field research conducted over longer time periods and mesocosm experiments that account for fish assemblage and environmental variation could elucidate Pterygoplichthys impacts via food resource depletion or habitat alteration.

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Trophic level and position of Pterygoplichthys pardalis in Ciliwung River (Jakarta, Indonesia) ecosystem based on the gut content analysis

Cited by 5 publications

References 34 publications

Invasion Risk and Potential Impact of Alien Freshwater Fishes on Native Counterparts in Klang Valley, Malaysia

Invasion Risk and Potential Impact of Alien Freshwater Fishes on Native Counterparts in Klang Valley, Malaysia

Habitat and food habits of the endemic fish Oryzias eversi in Tana Toraja, South Sulawesi, Indonesia

Does invasion by armored catfish shift trophic ecology of native fishes? Evidence from stable isotope analysis

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