Reproductive characteristics of Tozeuma carolinense (Decapoda: Caridea: Hippolytidae) in the Gulf of Mexico
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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional Autónoma de México
2019
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| _version_ | 1876448817005461504 |
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| author | José Luis Bortolini |
| author_facet | José Luis Bortolini |
| contents | Reproductive characteristics of Tozeuma carolinense (Decapoda: Caridea: Hippolytidae) in the Gulf of Mexico José Luis Bortolini María del Pilar Alonso Irma Lorraine Mercado Biología Fecundity Phantom shrimp Population analysis Tozeuma carolinense We studied reproductive characteristics of the phantom shrimp Tozeuma carolinense inhabiting sea-grass beds to test hypotheses about seasonality of reproduction, sex ratio and sexual system, and fecundity values in 3 Mexican collecting sites in the Gulf of Mexico. Four hundred and eighty collected individuals were measured and separated to 3 groups. Based on discriminant analysis, carapace length (CL) was selected as morphometric feature to define 10 size-class intervals. The relationship between sexes were analyzed. Embryos were counted, measured and classified into 4 stages of development. Regression analyses were performed to determine the correlation between the number and size of embryos vs. CL. Sex ratio was 1:1, however, for each location, the sex ratio was different. Males were smaller than females; ovigerous females were larger than non-ovigerous females and males. Fecundity analysis have a significant positive relationship, both in the number and size of embryos vs. female CL. Ovigerous females were found at all dates, and confirmed in El Cayo populations with monthly samples in a year, so that we conclude that T. carolinense belongs to the species category with a seasonal-continuous reproduction. 2019 artículo científico 1870-3453 https://www.redalyc.org/articulo.oa?id=42562784035 https://www.redalyc.org/journal/425/42562784035/ https://www.redalyc.org/journal/425/42562784035/html/ https://www.redalyc.org/journal/425/42562784035/42562784035.epub https://www.redalyc.org/journal/425/42562784035/movil 10.22201/ib.20078706e.2019.90.2670 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.90 |
| format | Artículo científico |
| id | redalyc_42562784035 |
| institution | Redalyc |
| language | en |
| publishDate | 2019 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Reproductive characteristics of Tozeuma carolinense (Decapoda: Caridea: Hippolytidae) in the Gulf of Mexico José Luis Bortolini Biología Fecundity Phantom shrimp Population analysis Tozeuma carolinense Reproductive characteristics of Tozeuma carolinense (Decapoda: Caridea: Hippolytidae) in the Gulf of Mexico José Luis Bortolini María del Pilar Alonso Irma Lorraine Mercado Biología Fecundity Phantom shrimp Population analysis Tozeuma carolinense We studied reproductive characteristics of the phantom shrimp Tozeuma carolinense inhabiting sea-grass beds to test hypotheses about seasonality of reproduction, sex ratio and sexual system, and fecundity values in 3 Mexican collecting sites in the Gulf of Mexico. Four hundred and eighty collected individuals were measured and separated to 3 groups. Based on discriminant analysis, carapace length (CL) was selected as morphometric feature to define 10 size-class intervals. The relationship between sexes were analyzed. Embryos were counted, measured and classified into 4 stages of development. Regression analyses were performed to determine the correlation between the number and size of embryos vs. CL. Sex ratio was 1:1, however, for each location, the sex ratio was different. Males were smaller than females; ovigerous females were larger than non-ovigerous females and males. Fecundity analysis have a significant positive relationship, both in the number and size of embryos vs. female CL. Ovigerous females were found at all dates, and confirmed in El Cayo populations with monthly samples in a year, so that we conclude that T. carolinense belongs to the species category with a seasonal-continuous reproduction. 2019 artículo científico 1870-3453 https://www.redalyc.org/articulo.oa?id=42562784035 https://www.redalyc.org/journal/425/42562784035/ https://www.redalyc.org/journal/425/42562784035/html/ https://www.redalyc.org/journal/425/42562784035/42562784035.epub https://www.redalyc.org/journal/425/42562784035/movil 10.22201/ib.20078706e.2019.90.2670 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.90 |
| title | Reproductive characteristics of Tozeuma carolinense (Decapoda: Caridea: Hippolytidae) in the Gulf of Mexico |
| topic | Biología Fecundity Phantom shrimp Population analysis Tozeuma carolinense |
| url | https://www.redalyc.org/articulo.oa?id=42562784035 https://www.redalyc.org/journal/425/42562784035/ https://www.redalyc.org/journal/425/42562784035/html/ https://www.redalyc.org/journal/425/42562784035/42562784035.epub https://www.redalyc.org/journal/425/42562784035/movil |