Age validation and contrasted growth performances of Pseudoplatystoma punctifer (Siluriformes: Pimelodidae) in two river systems of the Western Amazon

Maricell Armas; Hernán Ortega; Aurea García-Vasquez; Carmen García-Dávila; Gladys Vargas; Jesus Nuñez; Jean François Renno; Fabrice Duponchelle

doi:10.1590/1982-0224-2021-0099

Age validation and contrasted growth performances of Pseudoplatystoma punctifer (Siluriformes: Pimelodidae) in two river systems of the Western Amazon

Maricell Armas, Hernán Ortega, Aurea García-Vasquez, Carmen García-Dávila, Gladys Vargas, Jesus Nuñez, Jean François Renno, Fabrice Duponchelle

Research output: Contribution to journal › Article › peer-review

Abstract

The doncella Pseudoplatystoma punctifer is an economically and ecologically important catfish in the Amazon basin. However, little is known about its age, growth and population dynamics parameters. This study aims to validate the formation of growth marks in vertebrae of individuals collected from two rivers systems of the Peruvian Amazon (Amazon-Marañón-Ucayali and Putumayo) and compare growth parameters using the von Bertalanffy growth function between sexes and systems. A total of 372 individuals from the Amazon-Marañón-Ucayali (AMU) system and 93 from the Putumayo River were analyzed. The formation of one growth ring per year was validated and the individual ages ranged from zero to nine years old. Females grew significantly larger than males in both systems. Both females and males grew significantly better in the AMU system than in the Putumayo River. Maximum observed length and size at maturity in the AMU system were lower than those reported in previous studies in the area, and together with an important proportion of juveniles in the catches, suggest that the species is heavily exploited. Further studies on the reproductive biology and population dynamics of the doncella are needed in order to implement management measures more in line with the current situation.

Original language	English
Article number	e210099
Journal	Neotropical Ichthyology
Volume	20
Issue number	1
DOIs	https://doi.org/10.1590/1982-0224-2021-0099
State	Published - 2022
Externally published	Yes

Bibliographical note

Funding Information:
This study was financed by the partnership between the Institut de Recherche pour le D?veloppment (IRD) from France and the Programa de Investigaci?n para el Uso y Conservaci?n del Agua y sus Recursos (AQUAREC) of the Instituto de Investigaciones de la Amazon?a Peruana (IIAP). In addition, this study was part of the M. Armas master thesis supported by the Amazonian Fishes and Climate Change Project (203?2015 FONDECYT?UNMSM). This study is dedicated to the memory of Aurea Garc?aVasquez, dearest colleague and friend who sucumbed to covid-19. We miss you. Collection authorization according to the Ministerial Resolution N? 1497-2018 PRODUCE/DGPCHDI (3/Oct/2018).

Funding Information:
This study was financed by the partnership between the Institut de Recherche pour le Développment (IRD) from France and the Programa de Investigación para el Uso y Conservación del Agua y sus Recursos (AQUAREC) of the Instituto de Investigaciones de la Amazonía Peruana (IIAP). In addition, this study was part of the M. Armas master thesis supported by the Amazonian Fishes and Climate Change Project (203–2015 FONDECYT–UNMSM). †This study is dedicated to the memory of Aurea García-Vasquez, dearest colleague and friend who sucumbed to covid-19. We miss you.

Publisher Copyright:
© 2022, Sociedade Brasileira de Ictiologia. All rights reserved.

Keywords

Amazonas-Marañón-Ucayali
Catfish
Fisheries management
Putumayo
Vertebrae

Access to Document

10.1590/1982-0224-2021-0099

Cite this

@article{e03b74a687cb42cb894dd43ea8974a39,

title = "Age validation and contrasted growth performances of Pseudoplatystoma punctifer (Siluriformes: Pimelodidae) in two river systems of the Western Amazon",

abstract = "The doncella Pseudoplatystoma punctifer is an economically and ecologically important catfish in the Amazon basin. However, little is known about its age, growth and population dynamics parameters. This study aims to validate the formation of growth marks in vertebrae of individuals collected from two rivers systems of the Peruvian Amazon (Amazon-Mara{\~n}{\'o}n-Ucayali and Putumayo) and compare growth parameters using the von Bertalanffy growth function between sexes and systems. A total of 372 individuals from the Amazon-Mara{\~n}{\'o}n-Ucayali (AMU) system and 93 from the Putumayo River were analyzed. The formation of one growth ring per year was validated and the individual ages ranged from zero to nine years old. Females grew significantly larger than males in both systems. Both females and males grew significantly better in the AMU system than in the Putumayo River. Maximum observed length and size at maturity in the AMU system were lower than those reported in previous studies in the area, and together with an important proportion of juveniles in the catches, suggest that the species is heavily exploited. Further studies on the reproductive biology and population dynamics of the doncella are needed in order to implement management measures more in line with the current situation.",

keywords = "Amazonas-Mara{\~n}{\'o}n-Ucayali, Catfish, Fisheries management, Putumayo, Vertebrae",

author = "Maricell Armas and Hern{\'a}n Ortega and Aurea Garc{\'i}a-Vasquez and Carmen Garc{\'i}a-D{\'a}vila and Gladys Vargas and Jesus Nu{\~n}ez and Renno, {Jean Fran{\c c}ois} and Fabrice Duponchelle",

year = "2022",

doi = "10.1590/1982-0224-2021-0099",

language = "Ingl{\'e}s",

volume = "20",

journal = "Neotropical Ichthyology",

issn = "1679-6225",

publisher = "Sociedade Brasileira de Ictiologia",

number = "1",

}

TY - JOUR

T1 - Age validation and contrasted growth performances of Pseudoplatystoma punctifer (Siluriformes

T2 - Pimelodidae) in two river systems of the Western Amazon

AU - Armas, Maricell

AU - Ortega, Hernán

AU - García-Vasquez, Aurea

AU - García-Dávila, Carmen

AU - Vargas, Gladys

AU - Nuñez, Jesus

AU - Renno, Jean François

AU - Duponchelle, Fabrice

PY - 2022

Y1 - 2022

N2 - The doncella Pseudoplatystoma punctifer is an economically and ecologically important catfish in the Amazon basin. However, little is known about its age, growth and population dynamics parameters. This study aims to validate the formation of growth marks in vertebrae of individuals collected from two rivers systems of the Peruvian Amazon (Amazon-Marañón-Ucayali and Putumayo) and compare growth parameters using the von Bertalanffy growth function between sexes and systems. A total of 372 individuals from the Amazon-Marañón-Ucayali (AMU) system and 93 from the Putumayo River were analyzed. The formation of one growth ring per year was validated and the individual ages ranged from zero to nine years old. Females grew significantly larger than males in both systems. Both females and males grew significantly better in the AMU system than in the Putumayo River. Maximum observed length and size at maturity in the AMU system were lower than those reported in previous studies in the area, and together with an important proportion of juveniles in the catches, suggest that the species is heavily exploited. Further studies on the reproductive biology and population dynamics of the doncella are needed in order to implement management measures more in line with the current situation.

AB - The doncella Pseudoplatystoma punctifer is an economically and ecologically important catfish in the Amazon basin. However, little is known about its age, growth and population dynamics parameters. This study aims to validate the formation of growth marks in vertebrae of individuals collected from two rivers systems of the Peruvian Amazon (Amazon-Marañón-Ucayali and Putumayo) and compare growth parameters using the von Bertalanffy growth function between sexes and systems. A total of 372 individuals from the Amazon-Marañón-Ucayali (AMU) system and 93 from the Putumayo River were analyzed. The formation of one growth ring per year was validated and the individual ages ranged from zero to nine years old. Females grew significantly larger than males in both systems. Both females and males grew significantly better in the AMU system than in the Putumayo River. Maximum observed length and size at maturity in the AMU system were lower than those reported in previous studies in the area, and together with an important proportion of juveniles in the catches, suggest that the species is heavily exploited. Further studies on the reproductive biology and population dynamics of the doncella are needed in order to implement management measures more in line with the current situation.

KW - Amazonas-Marañón-Ucayali

KW - Catfish

KW - Fisheries management

KW - Putumayo

KW - Vertebrae

UR - http://www.scopus.com/inward/record.url?scp=85129141161&partnerID=8YFLogxK

U2 - 10.1590/1982-0224-2021-0099

DO - 10.1590/1982-0224-2021-0099

M3 - Artículo

AN - SCOPUS:85129141161

SN - 1679-6225

VL - 20

JO - Neotropical Ichthyology

JF - Neotropical Ichthyology

IS - 1

M1 - e210099

ER -

Age validation and contrasted growth performances of Pseudoplatystoma punctifer (Siluriformes: Pimelodidae) in two river systems of the Western Amazon

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this