Functional morphometry of aristeus antennatus (risso, 1816) (decapoda, aristeidae)
Growth as reflected by measurements of different body parts of the pink shrimp, Aristeus antennatus (abdomen, scaphocerite, uropods, and segments on the third and fourth pereiopods) was related to carapace length by type-1 regression analysis. There were differences in the relative growth of swimmin...
| Autores: | , , |
|---|---|
| Formato: | artículo |
| Fecha de publicación: | 1995 |
| País: | España |
| Repositorio: | accedaCRIS portal de investigación de la Universidad de las Palmas de Gran Canaria |
| OAI Identifier: | oai:accedacris.ulpgc.es:10553/897 |
| Acesso em linha: | http://hdl.handle.net/10553/897 |
| Access Level: | acceso abierto |
| Palavra-chave: | 3105 Peces y fauna silvestre 310504 Protección de los peces 240101 Anatomía animal Gamba rosada Crustáceos Crecimiento |
| Resumo: | Growth as reflected by measurements of different body parts of the pink shrimp, Aristeus antennatus (abdomen, scaphocerite, uropods, and segments on the third and fourth pereiopods) was related to carapace length by type-1 regression analysis. There were differences in the relative growth of swimming appendages and pereiopods. For the former (abdomen, uropods, and scaphocerite) growth was negatively allometric at a statistically significant level, whereas for the latter (pereiopod segments) growth either was isometric or exhibited a slightly positive allometry. Comparison of the measurements between the sexes revealed differences in growth only for the uropods, with the slopes of the regression lines indicating higher negative allometry in females than in males. There was no evidence of growth discontinuity for any body part over the life cycle of individuals of this species. The results have been compared to the findings reported by other investigators working with other species of shrimps, prawns, lobsters, and crabs, and the relative growth of the different body parts has been related to the different life strategies of each group. |
|---|