Growth parameters of the invasive gastropod <i>Melanoides tuberculata</i> (Müller, 1774) (Gastropoda, Thiaridae) in a semi-arid region, Northeastern Brazil
Melanoides tuberculata has invaded several aquatic ecosystems in the Neotropical region. This species shows high adaptive capacity and plasticity, establishing itself in several basins, promoting negative impacts on environments and native species. Here, we determine the growth parameters and the p...
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Universidade Estadual de Maringá
2019-07-01
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Series: | Acta Scientiarum: Biological Sciences |
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Online Access: | https://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/45720 |
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author | Cicero Diogo Lins Oliveira Carlos Yure Barbosa de Oliveira |
author_facet | Cicero Diogo Lins Oliveira Carlos Yure Barbosa de Oliveira |
author_sort | Cicero Diogo Lins Oliveira |
collection | DOAJ |
description |
Melanoides tuberculata has invaded several aquatic ecosystems in the Neotropical region. This species shows high adaptive capacity and plasticity, establishing itself in several basins, promoting negative impacts on environments and native species. Here, we determine the growth parameters and the population structure of this species, in a semi-arid environment, in Northeast Brazil (Pernambuco state). Monthly captures were conducted at three types of substrate: site 1: soft bottom with macrophytes, site 2: soft bottom without macrophytes, and site 3: gravel and rocks. Shells were classified as occupied or empty, and their shell length (SL) and opening width (SW) were measured. The growth parameters of the von Bertalanffy’s model were estimated from the size-length frequency distribution using the ELEFAN I. Also, the maturity was verified, through the size at onset of maturity (SOM - 14.85 mm SL) proposed in the literature. A total of 1,013 individuals were collected, with shells varying from 7 to 39 mm SL and mean density of 84.42 (± 3.86) individuals m-2. The substrate with the largest number of mollusks was the site 1. Largest amount of empty shells was detected at site 3. Growth of M. tuberculata indicates rapid increment, with k = 0.56, L∞ = 42 mm and t0 = -0.26 years. The mean estimated age for the species was 0.95 years. According to the SOM, 86% of individuals sampled were considered mature.
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spelling | doaj.art-b23362d07323492d8b795cfe5b2ffdf92022-12-22T00:20:48ZengUniversidade Estadual de MaringáActa Scientiarum: Biological Sciences1679-92831807-863X2019-07-0141110.4025/actascibiolsci.v41i1.4572045720Growth parameters of the invasive gastropod <i>Melanoides tuberculata</i> (Müller, 1774) (Gastropoda, Thiaridae) in a semi-arid region, Northeastern BrazilCicero Diogo Lins Oliveira0Carlos Yure Barbosa de Oliveira1Universidade Federal Rural de PernambucoUniversidade Federal de Santa Catarina Melanoides tuberculata has invaded several aquatic ecosystems in the Neotropical region. This species shows high adaptive capacity and plasticity, establishing itself in several basins, promoting negative impacts on environments and native species. Here, we determine the growth parameters and the population structure of this species, in a semi-arid environment, in Northeast Brazil (Pernambuco state). Monthly captures were conducted at three types of substrate: site 1: soft bottom with macrophytes, site 2: soft bottom without macrophytes, and site 3: gravel and rocks. Shells were classified as occupied or empty, and their shell length (SL) and opening width (SW) were measured. The growth parameters of the von Bertalanffy’s model were estimated from the size-length frequency distribution using the ELEFAN I. Also, the maturity was verified, through the size at onset of maturity (SOM - 14.85 mm SL) proposed in the literature. A total of 1,013 individuals were collected, with shells varying from 7 to 39 mm SL and mean density of 84.42 (± 3.86) individuals m-2. The substrate with the largest number of mollusks was the site 1. Largest amount of empty shells was detected at site 3. Growth of M. tuberculata indicates rapid increment, with k = 0.56, L∞ = 42 mm and t0 = -0.26 years. The mean estimated age for the species was 0.95 years. According to the SOM, 86% of individuals sampled were considered mature. https://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/45720invasive molluskpopulation structuregrowth curve. |
spellingShingle | Cicero Diogo Lins Oliveira Carlos Yure Barbosa de Oliveira Growth parameters of the invasive gastropod <i>Melanoides tuberculata</i> (Müller, 1774) (Gastropoda, Thiaridae) in a semi-arid region, Northeastern Brazil Acta Scientiarum: Biological Sciences invasive mollusk population structure growth curve. |
title | Growth parameters of the invasive gastropod <i>Melanoides tuberculata</i> (Müller, 1774) (Gastropoda, Thiaridae) in a semi-arid region, Northeastern Brazil |
title_full | Growth parameters of the invasive gastropod <i>Melanoides tuberculata</i> (Müller, 1774) (Gastropoda, Thiaridae) in a semi-arid region, Northeastern Brazil |
title_fullStr | Growth parameters of the invasive gastropod <i>Melanoides tuberculata</i> (Müller, 1774) (Gastropoda, Thiaridae) in a semi-arid region, Northeastern Brazil |
title_full_unstemmed | Growth parameters of the invasive gastropod <i>Melanoides tuberculata</i> (Müller, 1774) (Gastropoda, Thiaridae) in a semi-arid region, Northeastern Brazil |
title_short | Growth parameters of the invasive gastropod <i>Melanoides tuberculata</i> (Müller, 1774) (Gastropoda, Thiaridae) in a semi-arid region, Northeastern Brazil |
title_sort | growth parameters of the invasive gastropod i melanoides tuberculata i muller 1774 gastropoda thiaridae in a semi arid region northeastern brazil |
topic | invasive mollusk population structure growth curve. |
url | https://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/45720 |
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