Population parameters of the shrimp Xiphopenaeus kroyeri (Heller, 1862) (Crustacea, Penaeidae), caught by artisanal fisheries in Anchieta, Espírito Santo State

Abstract

The fishery on Penaeidae shrimp is done all over the Brazilian coast, especially the seabob shrimp (Xiphopenaeus kroyeri). It is captured in large quantities in the Southeast and Southern Brazil. In order to study the population structure of X. kroyeri from Anchieta Municipality, Espírito Santo State, during the period from January to December 2008, monthly samplings with one-hour-long were conducted to verify the number of individuals, biomass, sex, total length and gonad maturity stage. The specimens had total length ranging from 2.96 to 9.96 cm, and females were larger than males. It is suggested that the population of X. kroyeri presents patterns of recruitment and reproduction similar to those of the Northeast region. The estimated size of first gonadal maturation was 4.5 and 6.9 cm for males and females, respectively. The fishing operates on a stock composed of predominantly adult males and juveniles and adult females. The mesh size of the nets and the high plant biomass in the fishing areas may be contributing to the increased catch of juveniles, undermining the recruitment of X. kroyeri.

Growth and population structure of the seabob shrimp Xiphopenaeus kroyeri (Decapoda: Penaeidae) on the continental shelf of Sergipe, Brazil

“…The overall sex ratio of the seabob shrimp X. kroyeri found in this study did not differ from (1:1). Similar results were observed in other Brazilian localities: in the studies by Branco (2005) in the State of Santa Catarina; Fernandes et al (2011) in the State of Rio de Janeiro; Eutrópio et al (2013) in the State of Espírito Santo; Heckler et al (2013a) and Castilho et al (2015) in the State of São Paulo. This pattern agreed with the theory of sexual allocation described by Fisher (1930), who assumed that for gonochoric species, the expected sex ratio is 1:1.…”

“…The shrimps from the Penaeidae Rafinesque, 1815 family are one of the main fishery resources in tropical coastal regions (Albertoni et al , 2003; Costa et al , 2007; Eutrópio et al ., 2013). Among these species, Xiphopenaeus kroyeri (Heller, 1862), popularly known as the seabob shrimp, is highlighted as the major fishery resource in Brazil (Albertoni et al , 2003; Costa et al , 2007; Campos et al , 2011; Eutrópio et al , 2013).…”

“…The shrimps from the Penaeidae Rafinesque, 1815 family are one of the main fishery resources in tropical coastal regions (Albertoni et al , 2003; Costa et al , 2007; Eutrópio et al ., 2013). Among these species, Xiphopenaeus kroyeri (Heller, 1862), popularly known as the seabob shrimp, is highlighted as the major fishery resource in Brazil (Albertoni et al , 2003; Costa et al , 2007; Campos et al , 2011; Eutrópio et al , 2013). This species shows wide distribution along the Western Atlantic, from Virginia (USA) to Rio Grande do Sul (Brazil) (D'Incao et al , 2002; Costa et al , 2003), is more abundant in areas with less than 30 m depth and is particularly associated with sandy and muddy bottoms (Branco et al , 1999).…”

Population structure, sex ratio and growth of the seabob shrimp Xiphopenaeus kroyeri (Decapoda, Penaeidae) from coastal waters of southern Brazil

“…For Dendrobranchiata, results of several studies have revealed a predominance of females in higher size classes, e.g., for Artemesia longinaris Bate (Castilho et al 2007a, Costa et al 2010), Pleoticus muelleri (Bate) (Castilho et al 2008a, Dumont and D’Incao 2008) and Sicyonia dorsalis Kingsley (Castilho et al 2008b), as well as for Xiphopenaeus kroyeri (Branco 2005, Castro et al 2005, Almeida et al 2012, Eutrópio et al 2013, Heckler et al 2013). These studies also collected overall more females than males, which concords with results of the present study.…”

Avaliação do plano de manejo de camarões peneí­­deos na plataforma continental de Sergipe, Brasil

“…The shrimps of the family Penaeidae Rafinesque, 1815 are considered one of the most exploited fishing resources in coastal regions over the world (ALBERTONI et al, 2003;COSTA et al 2007;EUTRÓPIO et al, 2013). At the Brazilian coast, five species distributed in three genera represent the shrimps with greatest economic importance, the seabob shrimp Xiphopenaeus kroyeri (Heller, 1862), the white shrimp Litopenaeus schmitti (Bukenroad, 1936), and the pink shrimp Farfantepenaeus subtilis (Pérez-Farfante, 1967), F. brasiliensis (Latreille, 1817) and F. paulensis (Pérez-Farfante, 1967).…”