Detecting Mugil curema (Perciformes: Mugilidae) phenotypic stocks in La Paz Bay, Baja California Sur, Mexico, using geometric morphometrics of otolith shape, growth, and reproductive parameters
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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional Autónoma de México
2020
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| _version_ | 1876446049227243520 |
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| author | Luis Salgado-Cruz |
| author_facet | Luis Salgado-Cruz |
| contents | Detecting Mugil curema (Perciformes: Mugilidae) phenotypic stocks in La Paz Bay, Baja California Sur, Mexico, using geometric morphometrics of otolith shape, growth, and reproductive parameters Luis Salgado-Cruz Casimiro Quiñonez-Velázquez Federico A. García-Domínguez Carlos I. Pérez-Quiñonez Biología Multi Fishing stock model approach Individual growth Population structure In a holistic approach it is important to identify potential fishing units to better understand population structure and dynamics. The objective of this work was to evaluate the potential existence of a Mugil curema population structured in stocks in La Paz Bay. For this, a total of 709 specimens were collected between 2010 and 2013. Two fish groups were identified (G1, n = 212, and G2, n = 178), and the otolith shape was compared using geometric morphometrics, L50% was estimated, age was assigned, and a multi-model approach was used to evaluate individual growth. Eight age groups were assigned for G1 (3-10) and 5 for G2 (3-7). The most adequate model to describe growth for both groups was the von Bertalanffy growth model (G1: L ∞ = 421.77, k= 0.32, t 0 = -0.05; G2: L ∞ = 406.5, k = 0.36, t 0 = -0.02). Differences in otolith shape and growth parameters between groups were significant; opposite, L50% estimates (G1 = 325 mm LT; G2 = 330 mm LT) were not significant. Results suggest the presence of a M. curema population structured in at least 2 stocks in La Paz Bay: one stock reproduces in Spring (G1) and the other in the Fall (G2). 2020 artículo científico 1870-3453 https://www.redalyc.org/articulo.oa?id=42571632071 https://www.redalyc.org/journal/425/42571632071/ https://www.redalyc.org/journal/425/42571632071/html/ https://www.redalyc.org/journal/425/42571632071/42571632071.epub https://www.redalyc.org/journal/425/42571632071/movil 10.22201/ib.20078706e.2020.91.3273 en http://www.redalyc.org/revista.oa?id=425 Revista Mexicana de Biodiversidad application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Biodiversidad (México) Vol.91 |
| format | Artículo científico |
| id | redalyc_42571632071 |
| institution | Redalyc |
| language | en |
| publishDate | 2020 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Detecting Mugil curema (Perciformes: Mugilidae) phenotypic stocks in La Paz Bay, Baja California Sur, Mexico, using geometric morphometrics of otolith shape, growth, and reproductive parameters Luis Salgado-Cruz Biología Multi Fishing stock model approach Individual growth Population structure Detecting Mugil curema (Perciformes: Mugilidae) phenotypic stocks in La Paz Bay, Baja California Sur, Mexico, using geometric morphometrics of otolith shape, growth, and reproductive parameters Luis Salgado-Cruz Casimiro Quiñonez-Velázquez Federico A. García-Domínguez Carlos I. Pérez-Quiñonez Biología Multi Fishing stock model approach Individual growth Population structure In a holistic approach it is important to identify potential fishing units to better understand population structure and dynamics. The objective of this work was to evaluate the potential existence of a Mugil curema population structured in stocks in La Paz Bay. For this, a total of 709 specimens were collected between 2010 and 2013. Two fish groups were identified (G1, n = 212, and G2, n = 178), and the otolith shape was compared using geometric morphometrics, L50% was estimated, age was assigned, and a multi-model approach was used to evaluate individual growth. Eight age groups were assigned for G1 (3-10) and 5 for G2 (3-7). The most adequate model to describe growth for both groups was the von Bertalanffy growth model (G1: L ∞ = 421.77, k= 0.32, t 0 = -0.05; G2: L ∞ = 406.5, k = 0.36, t 0 = -0.02). Differences in otolith shape and growth parameters between groups were significant; opposite, L50% estimates (G1 = 325 mm LT; G2 = 330 mm LT) were not significant. Results suggest the presence of a M. curema population structured in at least 2 stocks in La Paz Bay: one stock reproduces in Spring (G1) and the other in the Fall (G2). 2020 artículo científico 1870-3453 https://www.redalyc.org/articulo.oa?id=42571632071 https://www.redalyc.org/journal/425/42571632071/ https://www.redalyc.org/journal/425/42571632071/html/ https://www.redalyc.org/journal/425/42571632071/42571632071.epub https://www.redalyc.org/journal/425/42571632071/movil 10.22201/ib.20078706e.2020.91.3273 en http://www.redalyc.org/revista.oa?id=425 Revista Mexicana de Biodiversidad application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Biodiversidad (México) Vol.91 |
| title | Detecting Mugil curema (Perciformes: Mugilidae) phenotypic stocks in La Paz Bay, Baja California Sur, Mexico, using geometric morphometrics of otolith shape, growth, and reproductive parameters |
| topic | Biología Multi Fishing stock model approach Individual growth Population structure |
| url | https://www.redalyc.org/articulo.oa?id=42571632071 https://www.redalyc.org/journal/425/42571632071/ https://www.redalyc.org/journal/425/42571632071/html/ https://www.redalyc.org/journal/425/42571632071/42571632071.epub https://www.redalyc.org/journal/425/42571632071/movil |