Life history traits and implications for conservation of rock carp Procypris rabaudi Tchang, an endemic fish in the upper Yangtze River, China

Wang, Teng; Gao, Xin; Wang, Jun; Jakovlić, Ivan; Dan, S S; Liu, Huanzhang

doi:10.1007/s12562-015-0872-9

Cited by 7 publications

(6 citation statements)

References 35 publications

(50 reference statements)

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“…The annual growth of scales was used to estimate the age of fish, needed for subsequent growth estimates. Scales were taken from the end of the pectoral fin and the beginning of the dorsal fin of 437 specimens and analysed under a dissecting microscope as described before (Wang et al, 2015). Each scale was interpreted twice by one reader, with an interval of at least 2 weeks between the two counts.…”

Section: Age Estimates and Growthmentioning

confidence: 99%

Life History Traits, Elasticity Analyses, and Phenotypic Plasticity of Squaliobarbus curriculus in the Pearl River Estuary, China

Wang

Lin

Liu

et al. 2021

Front. Environ. Sci.

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Squaliobarbus curriculus, commonly known as red-eye fish, is widely distributed in East Asia. It is one of the important aquatic germplasm resource and economic species in the Pearl River. To give suggestions for better protection and management, we investigated its life history and conducted elasticity analyses. Samples (n = 451) were collected between 2016 and 2017 from the western Pearl River estuary. There were no significant differences between the length-weight relationships of females and males (W = 0.00001SL3.121). The von Bertalanffy growth function was Lt = 553.2 [1 − e−0.111(t+1.009)]. The estimated length at 50% sexual maturity for females was 209.6 and 200.0 mm for males, both at 3 years of age. Oocyte size-frequency distribution suggested batch spawning. Fecundity ranged between 9,407 and 175,086 eggs per fish (mean = 51,040, or 143.9 eggs/g of fish weight). To better understand the ecological phenotypic plasticity of S. curriculus we conducted meta-analyses on all available life history data for this species. Our results showed that the standard lengths at ages 2 and 3 in the estuary were significantly smaller than in the upper reaches of the Pearl River basin, and there were also obvious differences in fecundity and oocyte size. For more, the standard lengths at ages 2 and 3 were correlated negatively with latitude. Elasticity analysis showed that juveniles’ (aged 1–3) survival had the largest contribution to the population growth rate, which suggests that management efforts should focus on the early life stages.

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Section: Age Estimates and Growthmentioning

confidence: 99%

Life History Traits, Elasticity Analyses, and Phenotypic Plasticity of Squaliobarbus curriculus in the Pearl River Estuary, China

Wang

Lin

Liu

et al. 2021

Front. Environ. Sci.

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“…Rock carp, Procypris rabaudi, is an endemic and vulnerable Cyprinid fish in the upper Yangtze River (Yang et al, 2009). The fish is demersal, inhabits mainly slow-flowing areas with rocky substrate, and spawns under rocky shelters in rushing streams (Wang et al, 2015). Rock carp had relatively extensive distribution records in the mainstem of the upper Yangtze and its tributaries, such as the Jinsha River, Jialing River, and Minjiang River (Yang et al, 2009;Wang et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…The fish is demersal, inhabits mainly slow-flowing areas with rocky substrate, and spawns under rocky shelters in rushing streams (Wang et al, 2015). Rock carp had relatively extensive distribution records in the mainstem of the upper Yangtze and its tributaries, such as the Jinsha River, Jialing River, and Minjiang River (Yang et al, 2009;Wang et al, 2015). The upper mainstem and its tributaries are typical canyon rivers with steep gradients, staggered shoals, and rapids (Cheng et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Three Mitochondrial Markers Reveal Genetic Diversity and Structure of Rock Carp (Procypris rabaudi) Endemic to the Upper Yangtze: Implications for Pre-release Genetic Assessment

Dong²,

Ma³

et al. 2022

Front. Mar. Sci.

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Rock carp, Procypris rabaudi, is a vulnerable carp endemic to the upper reaches of the Yangtze River and included in the National Key Protected Wildlife in 2021 as a second-class aquatic animal. Evaluating the genetic makeup of released individuals before a restocking activity is carried out is essential, and a molecular marker with simple, rapid, and universal characteristics will be helpful to the evaluation. In this study, the genetic diversity and structure of rock carp from two representative hatcheries [Yibin (YB) and Wanzhou (WZ)] and a section of the upper Yangtze [Zhuyang (ZY)] were investigated using three mtDNA markers to select one marker instead of genetic evaluation of release. The results of three mtDNA markers revealed basically the same, indicating that the level of genetic diversity in rock carp was low, and there was significant genetic differentiation between the ZY and YB. Except for Cyt b–labeled YZ (0.81) and D-loop–labeled WZ (0.59), most of the haplotypic diversity values (h) were below 0.5, the nucleotide diversity values (π) of each group were lower than 0.5 × 10-2, and the haplotype number of rock carp is 1 to 4. Among the three mtDNA markers selected, D-loop marker detected higher diversity, more haplotypes, and private haplotypes, and significant differences between the YB and WZ. The results in this study pointed out the importance of pre-release genetic evaluation and the urgency of protecting the genetic diversity of rock carp, and the D-loop marker was preferentially selected in the pre-release genetic evaluation of fish. Hatchery release is the main strategy for the recovery of rock carp populations, similar to more than 20 endemic fish species in the upper Yangtze River. This study has guiding significance for the protection and restoration of other endemic fishes in the Yangtze River by hatchery release.

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Section: Introductionmentioning

confidence: 99%

“…Rock carp ( Procypris rabaudi , Tchang) are endemic to the upper reaches of the Yangtze River, and wild populations are declining due to pollution, overfishing, and migration barriers (Wang et al., 2015). The information needed to support conservation of this species is not yet sufficient, particularly for metabolism and swimming behavior.…”

Section: Introductionmentioning

confidence: 99%

Effect of repeated exercise fatigue on the swimming performance of juvenile rock carp (Procypris rabaudi, Tchang)

Huang

Malik

et al. 2020

J Appl Ichthyol

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The swimming performance of juvenile rock carp (Procypris rabaudi, Tchang) subjected to repeated fatigue exercise was studied using a flume-type respirometer at 20°C. The critical swimming speed (U crit) and oxygen consumption rate (MO 2) of juvenile rock carp were measured during two successive stepped velocity tests, following a 60 min rest interval. U crit of rock carp was giving a recovery ratio (R r

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Life history traits and implications for conservation of rock carp Procypris rabaudi Tchang, an endemic fish in the upper Yangtze River, China

Cited by 7 publications

References 35 publications

Life History Traits, Elasticity Analyses, and Phenotypic Plasticity of Squaliobarbus curriculus in the Pearl River Estuary, China

Life History Traits, Elasticity Analyses, and Phenotypic Plasticity of Squaliobarbus curriculus in the Pearl River Estuary, China

Three Mitochondrial Markers Reveal Genetic Diversity and Structure of Rock Carp (Procypris rabaudi) Endemic to the Upper Yangtze: Implications for Pre-release Genetic Assessment

Effect of repeated exercise fatigue on the swimming performance of juvenile rock carp (Procypris rabaudi, Tchang)

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