| Full text | |
| Author(s): |
Carvalho-Batista, Abner
[1, 2]
;
Oliveira, Caio M. C. A.
[1]
;
Souza, Guilherme
[3]
;
Carvalho, Fabricio Lopes
[4]
;
Mantelatto, Fernando Luis
[1]
Total Authors: 5
|
| Affiliation: | [1] Univ Sao Paulo, Fac Filosofia Ciencias & Letras Ribeirao Preto FF, Dept Biol, Lab Bioecol & Sistemat Crustaceos LBSC, Av Bandeirantes 3900, BR-14040901 Ribeirao Preto, SP - Brazil
[2] Univ Paulista UNIP, Inst Ciencias Saude, Ave Marques de Sao Vicente 3001, BR-05037040 Sao Paulo, SP - Brazil
[3] ONG Projeto Piabanha, Campo Sementes, Caixa Postal 123546, BR-28570000 Rio De Janeiro - Brazil
[4] Univ Fed Sul Bahia UFSB, Ctr Formacao Ciencias Agroflorestais CFCAf, Grp Pesquisa Carcinol & Biodiversidade Aquat GPCB, CEPEC CEPLAC, Rodovia Ilheus Itabuna, Km 22, BR-45662200 Ilheus, BA - Brazil
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | Nauplius; v. 29, APR 16 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
Abstract Atya gabonensis Giebel, 1875 and Atya scabra (Leach, 1816) are amphidromous shrimps. In some areas, these species populations are vulnerable due to the anthropogenic impact on their habitats and commercial exploitation. However, basic morphometric data is still lacking. This study provides morphometric data on both species in the Fluvial Island Domain of Paraíba do Sul River basin, Brazil. Sampling was performed bimonthly from January 2013 to March 2014. Individuals were analysed according to sex, weight, carapace length and width, abdomen length, second abdominal pleura height and width, length of third pereopod articles, and length and width of the male appendix interna. We sampled 42 individuals of A. gabonensis and 16 individuals of A. scabra. In both species, females showed abdomen and second abdominal pleura larger than males, while males showed third pereopod articles larger than females, both related to sexual dimorphism. We detected differences in the carapace length × carapace width relationship and in the growth pattern of the male appendix interna between species, with A. gabonensis presenting the carapace and the male appendix interna wider than A. scabra. Morphometric aspects of both species are unpublished for this region, and this data is valuable for A. gabonensis in the western Atlantic and for A. scabra from Rio de Janeiro state. Such information is essential for future systematic assessment and establishment of conservation management policies. (AU) | |
| FAPESP's process: | 18/13685-5 - Integrative analysis of the Brazilian fauna of decapod crustaceans: taxonomy, phylogenetic systematics, spermiotaxonomy, morphology of post-embryonic development, ecology and conservation |
| Grantee: | Fernando Luis Medina Mantelatto |
| Support Opportunities: | BIOTA-FAPESP Program - Thematic Grants |
| FAPESP's process: | 10/50188-8 - Decapod crustaceans: multi-disciplinary characterization of the sea biodiversity of the State of São Paulo (taxonomy, spermiotaxonomy, molecular biology and population dynamics) |
| Grantee: | Fernando Luis Medina Mantelatto |
| Support Opportunities: | BIOTA-FAPESP Program - Thematic Grants |