Review: A working checklist of the freshwater fish diversity for habitat management and conservation work in Sabah, Malaysia, North Borneo

Ng, Casey Keat‐Chuan; Abdullah, Fatimah; Biun, Helena; Ibrahim, Mohammad Khadafi; Mustapha, Shuhadah; Sade, Ahemad

doi:10.13057/biodiv/d180217

Cited by 11 publications

(3 citation statements)

References 20 publications

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“…Aves and mammals predominate this list as they are relatively well studied and are thus, more rapidly assessed. In contrast, obligate freshwater taxa are underrepresented as knowledge on the freshwater biodiversity in Sabah is generally poor (Chong et al, 2010)-even the economically significant freshwater ichthyofauna has remained scarcely inventoried in many areas (Ng et al, 2017). Incomplete distribution records and lack of estimates on the effective population size of the freshwater biota may have hampered assessments on their conservation status locally.…”

Section: Introductionmentioning

confidence: 99%

Population genetic structure of Asian snakehead fish (Channa striata) in North Borneo: Implications for conservation of local freshwater biodiversity

Robert

Amit

Sukarno

et al. 2018

Ecological Research

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This study quantified the intra‐specific diversity and characterized the population structure of the Asian snakehead fish, Channa striata in Sabah, North Borneo by determining the variability at six microsatellite loci. Range of genetic diversity across all sampled populations was comparatively moderate in relation to levels reported for C. striata populations occurring elsewhere and the overall Sabah population is highly structured, reflecting isolations across geological and ecological time scales. Two reciprocally monophyletic genodemes were identified along the west and east coast that may have been separated by mountain upthrusts throughout the central region of Sabah. Despite kinship among populations within each genodeme, individual demes were discrete as indicated by significant genotypic differentiation (all P < 0.0014) and low estimates of gene flow between them that likely reflect natural fragmentation of freshwater habitats they occupy. Our findings underline the potential of molecular markers in delimiting and delineating geospatial units of conservation in Sabah. Lowland freshwater ecosystems in the area may comprise two geographically isolated ecoregions, in which each hypothetically harbours biota that have evolved allopatrically. Additionally, identification of biodiversity hotspots within these putative ecoregions can be greatly facilitated with genetic‐level investigations as the rate by which freshwater communities are inventoried has been extremely slow in most habitats.

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Section: Introductionmentioning

confidence: 99%

Population genetic structure of Asian snakehead fish (Channa striata) in North Borneo: Implications for conservation of local freshwater biodiversity

Robert

Amit

Sukarno

et al. 2018

Ecological Research

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“…Alien fish species have been recorded from diverse ecosystems in Malaysia, and these include, but not limited to drainage areas, mining pools, lakes, reservoirs, swamps, streams, and rivers 6 , 55 – 57 . The presence of some of these species including peacock bass ( Cichla ocellaris ), striped catfish ( Pangasianodon hypophthlamus ), piranha ( Serrasalmus sp.…”

Section: Discussionmentioning

confidence: 99%

Species composition and invasion risks of alien ornamental freshwater fishes from pet stores in Klang Valley, Malaysia

Saba

Ismail

Zulkifli

et al. 2020

Sci Rep

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The ornamental fish trade has been considered as one of the most important routes of invasive alien fish introduction into native freshwater ecosystems. Therefore, the species composition and invasion risks of fish species from 60 freshwater fish pet stores in Klang Valley, Malaysia were studied. A checklist of taxa belonging to 18 orders, 53 families, and 251 species of alien fishes was documented. Fish Invasiveness Screening Test (FIST) showed that seven (30.43%), eight (34.78%) and eight (34.78%) species were considered to be high, medium and low invasion risks, respectively. After the calibration of the Fish Invasiveness Screening Kit (FISK) v2 using the Receiver Operating Characteristics, a threshold value of 17 for distinguishing between invasive and non-invasive fishes was identified. As a result, nine species (39.13%) were of high invasion risk. In this study, we found that non-native fishes dominated (85.66%) the freshwater ornamental trade in Klang Valley, while FISK is a more robust tool in assessing the risk of invasion, and for the most part, its outcome was commensurate with FIST. This study, for the first time, revealed the number of high-risk ornamental fish species that give an awareness of possible future invasion if unmonitored in Klang Valley, Malaysia.

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“…Improved ink drawings of B. binotatus were offered by Menon (1954). Thereon, inventory studies in Malaysia, Indonesia, Singapore and the Philippines applied the name widely ( e.g ., Ahmad et al ., 2014; Inger & Chin, 1962; Karlina et al ., 2016; Ng et al ., 2017; Roesma et al ., 2018; Taki et al ., 1978). Some doubts, however, have emerged recently and authors have suggested specimens found in the Malay Peninsula and Singapore could be Barbodes rhombeus instead ( e.g ., Baker & Lim, 2017; Ng et al ., 2019; Tan, 2019).…”

Section: Introductionmentioning

confidence: 99%

Cryptic species and grey zone speciation of the Barbodes binotatus complex (Teleostei, Cyprinidae) in Sundaland

Tan

2021

Journal of Fish Biology

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Morphology-based taxonomy of freshwater fish is effective when there are representative specimens covering large regions. However, in Sundaland, where the presence of cryptic species is high, the technique has its limitations. This is compounded by uncritical descriptions of holotypes in old literature. We demonstrate the problem using Barbodes binotatus first described from an ink drawing. Several species in the Barbodes genus of Sundaland exhibit morphological similarity to B. binotatus. We applied new DNA sequences of 16S, cytochrome c oxidase subunit I (COI), cytochrome b (Cytb) and recombination-activating gene 1 (RAG1), and pigmentation markers to clarify species complex boundaries in the Malay Peninsula, namely B. aff. binotatus "Malay Peninsula", Barbodes cf. banksi and Barbodes rhombeus. Results suggest B. binotatus-like specimens in the Malay Peninsula are B. rhombeus based on a threshold of 3% COI genetic divergence. B. aff. binotatus recorded in Sumatra, Borneo and the Philippines are likely valid but undescribed species. However, if the 2%COI threshold is applied, some populations in the northern Malay Peninsula would qualify as new and undescribed species. The implications of the 2% threshold and the likelihood of "grey zone" incipient populations are discussed. We further found a rapid visual method, not reported previously, to delineate B. aff. binotatus and B. cf.banksi, but it requires further validation. Additionally, we offer fresh perspectives by discussing the roles of biological species concept, morphological species concept, genetic species concept and mate recognition concept in the B. binotatus complex.Our findings reinforce the standpoint that species delineation is not entirely a binary process, but there is a spectrum to consider, especially in biogeography intersection regions.

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Review: A working checklist of the freshwater fish diversity for habitat management and conservation work in Sabah, Malaysia, North Borneo

Cited by 11 publications

References 20 publications

Population genetic structure of Asian snakehead fish (Channa striata) in North Borneo: Implications for conservation of local freshwater biodiversity

Population genetic structure of Asian snakehead fish (Channa striata) in North Borneo: Implications for conservation of local freshwater biodiversity

Species composition and invasion risks of alien ornamental freshwater fishes from pet stores in Klang Valley, Malaysia

Cryptic species and grey zone speciation of the Barbodes binotatus complex (Teleostei, Cyprinidae) in Sundaland

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