Daily cycle and body characteristics of mating Litopenaeus vannamei shrimps (Decapoda: Penaeidae) in the wild off southern Sinaloa, Mexico
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| Formato: | Online |
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Universidad de Costa Rica
2007
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| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/6070 |
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RBT60702022-05-30T19:06:49Z Daily cycle and body characteristics of mating Litopenaeus vannamei shrimps (Decapoda: Penaeidae) in the wild off southern Sinaloa, Mexico Daily cycle and body characteristics of mating Litopenaeus vannamei shrimps (Decapoda: Penaeidae) in the wild off southern Sinaloa, Mexico Calderón Pérez, J.A. Rendón Rodríguez, S. Solís Ibarra, R. Litopenaeus vannamei ciclo diario de reproducción condiciones de apareamiento Golfo de California diel reproduction mating conditions Gulf of California Mating behavior has been described for very few species of penaeoid shrimps. We describe some of the environmental conditions under which mating of Litopenaeus vannamei took place in the ocean, as inferred by the presence of attached spermatophores on the thelycum of females, combined with the presence of mature males with empty ampulla terminalis, both evidence of recent copulation. Out of a total of twelve 24 hr samplings on board the research vessel B/O EL PUMA, one was selected to examine mating. There were four periods of observation. The highest frequency of females with attached spermatophores were found during the daytime whilst the lowest was registered during the night. Females with attached spermatophore were mostly at stages IV and V of ovarian maturity and fell within the 30 - 50 mm of C.L. range. Copulating male size ranged between 30 and 40 mm of C.L. and there was a close relation between the percentage of mating females and males. Male to female ratio varied throughout the sampling period but it was never 1:1. The female mean size was, in all cases, bigger than the male mean size. Among the environmental factors, salinity and oxygen varied very slightly throughout the sampling period; temperature variation was more pronounced and those changes were attributed to the tidal oscillation. Universidad de Costa Rica 2007-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Text application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/6070 10.15517/rbt.v55i1.6070 Revista de Biología Tropical; Vol. 55 No. 1 (2007): Volume 55 – Regular number 1 – March 2007; 189–198 Revista de Biología Tropical; Vol. 55 Núm. 1 (2007): Volumen 55 – Número regular 1 – Marzo 2007; 189–198 Revista Biología Tropical; Vol. 55 N.º 1 (2007): Volume 55 – Regular number 1 – March 2007; 189–198 2215-2075 0034-7744 10.15517/rbt.v55i1 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/6070/5775 Copyright (c) 2007 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 |
| institution |
Universidad de Costa Rica |
| collection |
Revista de Biología Tropical |
| language |
eng |
| format |
Online |
| author |
Calderón Pérez, J.A. Rendón Rodríguez, S. Solís Ibarra, R. |
| spellingShingle |
Calderón Pérez, J.A. Rendón Rodríguez, S. Solís Ibarra, R. Daily cycle and body characteristics of mating Litopenaeus vannamei shrimps (Decapoda: Penaeidae) in the wild off southern Sinaloa, Mexico |
| author_facet |
Calderón Pérez, J.A. Rendón Rodríguez, S. Solís Ibarra, R. |
| author_sort |
Calderón Pérez, J.A. |
| title |
Daily cycle and body characteristics of mating Litopenaeus vannamei shrimps (Decapoda: Penaeidae) in the wild off southern Sinaloa, Mexico |
| title_short |
Daily cycle and body characteristics of mating Litopenaeus vannamei shrimps (Decapoda: Penaeidae) in the wild off southern Sinaloa, Mexico |
| title_full |
Daily cycle and body characteristics of mating Litopenaeus vannamei shrimps (Decapoda: Penaeidae) in the wild off southern Sinaloa, Mexico |
| title_fullStr |
Daily cycle and body characteristics of mating Litopenaeus vannamei shrimps (Decapoda: Penaeidae) in the wild off southern Sinaloa, Mexico |
| title_full_unstemmed |
Daily cycle and body characteristics of mating Litopenaeus vannamei shrimps (Decapoda: Penaeidae) in the wild off southern Sinaloa, Mexico |
| title_sort |
daily cycle and body characteristics of mating litopenaeus vannamei shrimps (decapoda: penaeidae) in the wild off southern sinaloa, mexico |
| title_alt |
Daily cycle and body characteristics of mating Litopenaeus vannamei shrimps (Decapoda: Penaeidae) in the wild off southern Sinaloa, Mexico |
| publisher |
Universidad de Costa Rica |
| publishDate |
2007 |
| url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/6070 |
| work_keys_str_mv |
AT calderonperezja dailycycleandbodycharacteristicsofmatinglitopenaeusvannameishrimpsdecapodapenaeidaeinthewildoffsouthernsinaloamexico AT rendonrodriguezs dailycycleandbodycharacteristicsofmatinglitopenaeusvannameishrimpsdecapodapenaeidaeinthewildoffsouthernsinaloamexico AT solisibarrar dailycycleandbodycharacteristicsofmatinglitopenaeusvannameishrimpsdecapodapenaeidaeinthewildoffsouthernsinaloamexico |
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