Modern Distribution of Armored Catfishes (Siluriformes: Loricariidae) in Central Vietnam

Epitheliocystis in armoured catfish (Pterygoplichthys spp.), anabas (Anabas testudineus) and tilapia (Oreochromis niloticus) in central Vietnam

“…In this study, significantly lower level of co‐infection in armoured catfish in comparison with the other two fish species may be caused by the status of the fish in the ecosystem. As a newly established invasive species (Gusakov et al., 2018; Stolbunov et al., 2021; Stolbunova & Tran Duc Dien, 2019), armoured catfish may be less sensitive to pathogenic agents in their invaded territories (Kołodziej‐Sobocińska et al., 2018). Because the richness of pathogens in non‐native invasive species is expected to increase over time (Kołodziej‐Sobocińska et al., 2018), level of infection in this fish species needs to be followed up in future studies.…”

Suckermouth armoured catfish (Pterygoplichthys spp.) menace in freshwater aquaculture and natural aquatic systems in Andhra Pradesh, India

“…It was observed that incidence of Pterygoplichthys spp has increased enormously during last four years since it was first recorded in natural waters in Andhra Pradesh (Akbar, 2016; Mallick, 2019) [22,59] . It was recorded that Pterygoplichthys has populated in river basins as also in main streams of rivers within 2-3 years of their first appearance in countries like Vietnam (Gusakov et al, 2018) [60] . Chaichana et al (2011) [31] recorded average density of Pterygoplichthys in canals in Eastern Thailand was 88 ± 9.3 individuals/100 m 2 weighing about 20 kg while Bijukumar et al (2015) [8] recorded 1023 specimens/50 m 2 from a drain in Kerala which were most abundantly distributed in urban downstream region of the canal.…”

“…In the present study, invasion of Pterygoplichthys spp was assessed in terms of biomass registered in carp culture ponds as well as canal and river systems. Pterygoplichthys catfishes are known to survive even in disturbed habitats and also able to proliferate through various seasons indicating possible batch spawning (Dmitry and Budaev, 2013) [62] and have the ability to move into river basins and water bodies that are remotely located from the places of their first discovery surpassing natural and manmade barriers indicating its effective invasive potential (Gusakov et al, 2018) [60] . Nico et al (2012) [63] has marked that subterranean (hypogeal) pathway is also possible for sailfin catfishes.…”

“…Thus, species-specific eDNA technique needs to be integrated to manage and restrict the naturalization of this non-native species (Ghosal, 2018) [13] . There were incidences of releasing of this strange fish that had been caught by fisherman back into the same aquatic systems which could amplified opportunities of its distribution, spread and colonization (Gusakov et al, 2018) [60] . In few instances, they were used to experiment for excoriating the algae deposited in the fish cages in the reservoirs (Edwin, 2020) [70] .…”

Phenotypic Divergences in Growth and Reproduction Underpin The Invasion of Suckermouth-Amored Catfishes to Lotic and Limnic Habitats in Vietnam

“…Currently, Pterygoplichthys spp. present in all main River Basins and Reservoirs in southern Vietnam (Gusakov et al 2018;Stolbunov and Dien 2019;Stolbunov et al 2020. Given these species are thriving in freshwater habitats in Vietnam, it is supposed that they have evolved in locally divergent adaptations by changes in morphology, diets, growth, development and reproduction; key characterisitics for the successful invations .…”