Hatchery release programme modified the genetic diversity and population structure of wild Chinese sucker (<scp><i>Myxocyprinus asiaticus</i></scp>) in the upper Yangtze River

Wu, Jiayun; Li, Chong; Song, Zhaobin

doi:10.1002/aqc.3761

Cited by 1 publication

(3 citation statements)

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“…This is demonstrated in the case of the introduction of Pangasius hypophthalmus in Bangladesh [ 27 ]. When introduction is carried out to augment the existing population, it may increase the genetic diversity of the recipient population as seen in the wild Chinese sucker Myxocyprinus asiaticus in the Wanzhou reaches of upper Yangtze River [ 109 ]. Conversely, there are cases where introduced populations may displace native ones, as exemplified by the native bighead carp Hypophthalmichthys nobilis and silver carp Hypophthalmichthys molitrix populations in the Pearl River [ 108 ].…”

Section: Discussionmentioning

confidence: 99%

“…These populations might benefit from augmenting or stocking individuals from closely related viable native or wild populations, preferably populations of higher genetic diversity [ 26 ]. This stocking approach may increase the genetic diversity of the recipient population [ 109 ] or at least increase the probability of the survival of the species [ 26 ]. However, caution must be observed as unknown threats may be introduced to the recipient population.…”

Section: Discussionmentioning

confidence: 99%

“…However, caution must be observed as unknown threats may be introduced to the recipient population. If stocking is to be done, the following are recommended: (1) a taxonomic survey of existing ichthyofauna must be done before stocking to document any change in the species diversity resulting from the stocking activity; (2) careful stocking procedures must be practiced, ensuring that the only intended species, G. aureus, is being translocated; (3) systematic documentation of the stocking activity such as information on the origin, quantity, and genetic diversity information of the stock released to the recipient lake; and, (4) poststocking monitoring and evaluation of the effect of the stocking activity on the genetic characteristic of the recipient population, as stocking activity can alter the genetic diversity of the recipient population [109]. Since the F ST value between Laguna de Bay and Lake Bato populations is not significant, the two populations might benefit from reciprocal stocking.…”

Section: Plos Onementioning

confidence: 99%

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Genetic diversity and divergence among native and translocated populations of the golden flathead goby Glossogobius aureus (Gobiiformes: Gobiidae) in Philippine lakes

Abdulmalik-Labe,

Eduardo,

Quilang

2023

PLoS ONE

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The golden flathead goby Glossogobius aureus is a native species in the Philippines, Australia, Japan, Taiwan, and many other countries in Asia. In the Philippines, it is an important food fish as it is commonly caught in major lakes. In this study, a total of 307 specimens morphologically identified as G. aureus were sampled from nine major lakes in the Philippines and were sequenced for their mitochondrial cytochrome b (cyt b) gene. Two hundred sixty of the 307 cyt b sequences had sequence similarities of ≥ 99% with G. aureus reference sequence in GenBank, while the remaining 47 (all from Lake Lanao) had sequence similarities of only 95% and were thus designated as Glossogobius cf. aureus and treated as a separate population. The sequences were then analyzed to examine the pattern of genetic diversity, relatedness, divergence, and demographic history among native and translocated populations of the species. Twenty-nine haplotypes were recovered, of which four haplotypes were shared among three to seven populations. Only one haplotype each was found in the native population in Lake Buhi and translocated population in Lake Paoay. Low haplotype and low nucleotide diversities were found for the populations in Laguna de Bay, Lanao, Bato, Buhi, Paoay, and Sebu lakes, which indicate founder event for the introduced populations in Lanao, Paoay, and Sebu lakes and recent genetic bottleneck for the native populations in Laguna de Bay, Bato, and Buhi. In contrast, high haplotype but low nucleotide diversities were found for the native populations of Taal, Naujan, and Buluan lakes, signifying a recent bottleneck followed by population expansion. Pairwise FST values showed generally large (FST = 0.168–0.249) to very large (FST = 0.302–1.000) genetic divergence between populations except between Laguna de Bay and Lake Bato, Laguna de Bay and Lake Buhi, and Lake Bato and Lake Buhi populations, which showed nonsignificant genetic differentiation. Lake Buluan and Lake Sebu populations showed moderate genetic differentiation (FST = 0.098). Neutrality tests showed significant negative Tajima’s D and Fu’s FS values only for the population from Laguna de Bay, which suggests that the population is undergoing expansion. These results are important for establishing scientifically sound strategies for effective conservation and sustainable exploitation of G. aureus in the Philippines.

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Section: Discussionmentioning

confidence: 99%