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| Piñeiro, O.; de León, M.E.; Oquendo, O.. |
| Se propone determinar la talla de primera madurez (LC50) en la langosta Panulirus argus, a partir de las setas ovígeras con estadio III, comparando el resultado obtenido con el LC50 hallado a partir de la presencia de hueva y/o espermatóforo. La información provino de muestreos mensuales llevados a cabo desde abril de 2007 hasta marzo de 2008 en el Golfo de Batabanó, región suroccidental de Cuba, donde se seleccionaron las siete zonas de monitoreo de La Coloma. De un total de 6 238 langostas hembras muestreadas, se identificaron los estadios de las setas en 5 232. El LC50 se determinó por el ajuste de una curva logística a las frecuencias de talla acumuladas relativas, resultando que los valores del LC50 calculados para hembras con setas en estadio III... |
| Tipo: Journal Contribution |
Palavras-chave: Size; Age at first maturity; Setae. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/4622 |
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| Sousa,Francisco Diogo Rocha; Elmoor-Loureiro,Lourdes Maria Abdu. |
| Abstract In recent years, an increase in knowledge about the diversity and biogeography of Brazilian Cladocera fauna has been evident. To keep up with these changes, it is opportune to carry out an update of the taxonomy and biogeography for the main cladoceran groups. Since 2008, some progress has been observed in Ilyocryptidae, with reports of four new taxa. In this study, an updated checklist of Ilyocryptidae from Brazil is provided, with a diagnosis for each cited taxon, as well as an identification key. Some of these taxa are considered rare; however, this issue might be an artifact of sampling. As this is the first in a series of papers compiling current information about Brazilian Cladocera, an identification key to orders and families occurring in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cladocera; Ctenopoda; Microcrustaceans; Postabdomen; Setae; Valves. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492019000100223 |
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| Zimmer,Adriane; Araujo,Paula B.; Bond-Buckup,Georgina. |
| This study describes the morphology and arrangement of the cuticular structures of Hyalella castroi González, Bond-Buckup & Araujo, 2006 and Hyalella pleoacuta González, Bond-Buckup & Araujo, 2006, to identify specific characters that can be used in taxonomstudies of this genus. The entire cuticular surface of both species was examined by optical and scanning electron microscopy. The data obtained were compared with available information for other members of Peracarida, mainly Amphipoda and Isopoda. Five different types of cuticular structures, including 30 types of setae, four types of microtrichs, three types of pores, and some structures formed by setules and denticles were identified. The results were compared with other groups of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cuticular surface; Hyalellinae; Microtrichs; Pores; Setae. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000100019 |
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