Effects of the upwelling system on the assessment of reproductive parameters of the caridean shrimp Nematopalaemon schmitti (Holthuis, 1950) in the Western Atlantic

Author(s)

Herrera, Daphine R. ^[1] ; Davanso, Thiago Maia ^[2] ; Costa, Rogerio C. ^[1]

Affiliation

^[1] Sao Paulo State Univ UNESP, Fac Sci, Dept Biol Sci, Lab Biol Marine & Freshwater Shrimp LABCAM, Av Eng Luiz Edmundo Corrijo Coube 14-01, BR-17033360 Bauru, SP - Brazil

^[2] Paulista Univ UNIP, Inst Hlth Sci, Bauru, SP - Brazil

• Document type: Journal article
• Source: MARINE ECOLOGY-AN EVOLUTIONARY PERSPECTIVE; v. 42, n. 2 JAN 2021.
• Web of Science Citations: 1

Abstract

Costal upwelling and other oceanographic features exert important effects on neritic and benthic communities, causing variations in the reproduction and survival of organisms. Here, we assessed the population structure, sex ratio, recruitment, and reproduction of the caridean shrimp Nematopalaemon schmitti near the Cabo Frio upwelling area in southeastern Brazil. In total, 759 individuals were captured. N. schmitti exhibited a unimodal size-frequency distribution pattern with larger females, and the binomial test indicated a significantly female-biased sex ratio. The time-series analysis showed synchrony between ovigerous females and juveniles that revealed continuous reproduction and the possible existence of recruitment areas. Our findings indicate that reproductive parameters are influenced by the environmental factors of the region studied here. We advocate that the influence of the sedimentary composition of the soft bottom and upwelling system of Cabo Frio is the predominant factors influencing the reproductive parameters in N. schmitti. (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: 09/54672-4 - Reproductive biology and dynamic population of the Penaeoidean shrimps (Crustacea, Decapoda) from southeastern Brazilian coast: latitudinal effect and suggestion for fishery control
• Grantee: Rogério Caetano da Costa
• Support Opportunities: Regular Research Grants
• FAPESP's process: 10/13008-1 - Ecological distribution and population dynamics of shrimp Nematopalaemon schmitti (Holthuis, 1950) (Caridea, Palaemonidae) in the region of Macaé/RJ, Brazil.
• Grantee: Daphine Ramiro Herrera
• Support Opportunities: Scholarships in Brazil - Master
• 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