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He J, Wu Z, Huang L, Sun Y, Wang D, Lin Y, He A, Feng J, Liu H. Age, growth, reproduction and status of resource development of Ptychidio jordani, a critically endangered freshwater fish in the Hongshui River, China. JOURNAL OF FISH BIOLOGY 2024; 104:399-409. [PMID: 36648015 DOI: 10.1111/jfb.15324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 01/14/2023] [Indexed: 06/17/2023]
Abstract
The age, growth, reproduction and resource development status of Ptychidio jordani, as a critically endangered freshwater fish in the Hongshui River, China, was studied in this work. A total of 525 specimens were collected monthly using the cages and gillnets from October 2021 to September 2022 in the Hongshui River. The scale was used for age determination, and the maximum age for both female and male was estimated to be 5 years and 3 years, respectively. Female and male P. jordani showed different growth patterns, which were expressed as Lt = 261.3 (1-e-0.4885(t-0.1476) ) and Lt = 251.2 (1-e-0.4758(t+0.9643) ), respectively. The overall sex ratio was 1:0.47 (female:male). Female attained sex maturity at 2.34 years (192 mm body length). Month variation of the gonad somatic index indicated that the spawning period occurred from April to October. The absolute fecundity was estimated at 9046 ± 3434 eggs per individual, and the relative fecundity was 38.08 ± 15.77 eggs per gram. The exploitation rate of female and male was 0.233 and 0.495, which indicated that P. jordani was not overfishing. This study provided data on the key life-history traits of P. jordani, which has not been known previously and is essential for conservation strategy and policy development.
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Affiliation(s)
- Jiayang He
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China
| | - Zhiqiang Wu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China
| | - Liangliang Huang
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin, China
- Guangxi Collaborative Innovation Center for Water Pollution Control and Water Safety Guarantee in Karst Areas, Guilin University of Technology, Guilin, China
| | - Yangyan Sun
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China
| | - Dongjie Wang
- College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Yong Lin
- Guangxi Academy of Fishery Sciences, Nanning, China
| | - Anyou He
- Guangxi Academy of Fishery Sciences, Nanning, China
| | - Jie Feng
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China
| | - Hao Liu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China
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Lira NL, Tonello S, Lui RL, Traldi JB, Brandão H, Oliveira C, Blanco DR. Identifying fish eggs and larvae: from classic methodologies to DNA metabarcoding. Mol Biol Rep 2023; 50:1713-1726. [PMID: 36418775 DOI: 10.1007/s11033-022-08091-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 11/04/2022] [Indexed: 11/25/2022]
Abstract
Studies involving fish eggs and larvae date back to the end of the nineteenth century. Since then, studies with ichthyoplankton have proved to be an essential tool, generating information for the knowledge of the ichthyofauna and the environmental inventory. Most of these studies reveal the difficulty of obtaining a precise taxonomic identification of the collected materials, making research with ichthyoplankton extremely challenging. With the advent of molecular biology, the use of markers such as COI enabled greater taxonomic precision, helping to understand events involving ichthyofauna. Now we can observe the evolution of the molecular identification tool for ichthyoplankton via DNA barcoding, which has been increasingly used over the last few decades. From 2000 to 2010, we found six publications; from 2011 to 2021, 75 papers were published, and in 2022 four studies. Our survey also showed the accuracy of molecular identification when compared to the taxonomic identification of these. In this review, we show the state of the art of studies that used barcode and DNA metabarcoding to identify fish eggs and larvae in different environments and discuss their importance as the best practice for working with these organisms.
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Affiliation(s)
- Natália Lima Lira
- Programa de Pós-Graduação em Recursos Naturais e Sustentabilidade, Universidade Tecnológica Federal do Paraná, Prolongamento da Rua Cerejeira, S/N, Santa Helena, PR, 85892-000, Brazil.
| | - Sandro Tonello
- Programa de Pós-Graduação em Genética, Conservação e Biologia Evolutiva, Instituto Nacional de Pesquisas da Amazônia, Av. André Araújo, 2936, Aleixo, Manaus, AM, 69080-971, Brazil
| | - Roberto Laridondo Lui
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná, R. Universitária, 1619, Cascavel, PR, 85819-170, Brazil
| | - Josiane Baccarin Traldi
- Instituto de Ciências Biológicas, Departamento de Genética, Universidade Federal do Amazonas, Av. General Rodrigo Octavio, 6200, Manaus, AM, 69080-900, Brazil
| | - Heleno Brandão
- Programa de Pós-Graduação em Recursos Naturais e Sustentabilidade, Universidade Tecnológica Federal do Paraná, Prolongamento da Rua Cerejeira, S/N, Santa Helena, PR, 85892-000, Brazil
| | - Claudio Oliveira
- Departamento de Biologia Estrutural e Funcional, Instituto de Biociências, Universidade Estadual Paulista, R. Prof. Dr. Antônio C. W. Zanin, 250, Botucatu, SP, 18618-689, Brazil
| | - Daniel Rodrigues Blanco
- Programa de Pós-Graduação em Recursos Naturais e Sustentabilidade, Universidade Tecnológica Federal do Paraná, Prolongamento da Rua Cerejeira, S/N, Santa Helena, PR, 85892-000, Brazil
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Unraveling the Drifting Larval Fish Community in a Large Spawning Ground in the Middle Pearl River Using DNA Barcoding. Animals (Basel) 2022; 12:ani12192555. [PMID: 36230296 PMCID: PMC9559676 DOI: 10.3390/ani12192555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/20/2022] [Accepted: 09/23/2022] [Indexed: 11/17/2022] Open
Abstract
Simple Summary DNA barcoding identified 28 species from larvae collected from the Dongta spawning ground. Six invasive species were identified in the larval pool, implying that these species had successfully colonized the middle Pearl River. Several migratory species common in the lower Pearl River were rare or absent in the Dongta spawning ground, suggesting that adverse effects of dam construction posed on these migratory species. Our study provided important reference data for fishery management and conservation in the Pearl River. Abstract Resolving the species composition of a larval pool in a spawning ground can provide novel insights into regional fish stocks and can support the development of effective monitoring and conservation policies. However, it is challenging to identify fish larvae to species due to their high diversity and dramatic phenotypic changes over development. In this study, we collected fish larvae in the Dongta spawning ground (Guiping City, Guangxi Province, China) in the middle reaches of the Pearl River between May and August 2018. We used a DNA barcoding approach to determine the species composition of the larval pool. A total of 905 larvae were chosen for molecular identification, of which 750 yielded high-quality barcoding sequences. Of these, 597 (≈79.6%), 151 (≈20.1%)/and 2 (≈0.3%) were assigned to 28 species, 8 genera, and 1 subfamily using the Barcode of Life Data System and GenBank nucleotide databases, respectively. Among the 28 identified species, 21 were cyprinids. Two species (Mugilogobius myxodermus and Pseudolaubuca engraulis) that were present only infrequently in previous adult surveys were abundant in the larval pool. Six invasive species were identified in the larval pool, implying that these species had successfully colonized the studied river section. Several migratory species common in the lower Pearl River were rare or absent in the investigated region, suggesting that dam construction in the Pearl River has had adverse effects on these migratory species. In summary, our study confirmed the applicability of DNA barcoding to studies of fish larval ecology and provided important reference data for fishery management and conservation in the Pearl River.
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