Short report on the effect of a parasitic isopod on the reproductive performance of a shrimp

Calado, Ricardo; Bartilotti, Cátia; Narciso, Luı́s

doi:10.1016/j.jembe.2004.12.038

Cited by 27 publications

(26 citation statements)

References 14 publications

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“…(a branchial parasite) significantly affects the female sexual system of its host, the simultane-ously hermaphroditic shrimp Lysmata amboinensis, but does not cause its castration. This result differs from that recorded by Calado et al (2005) for the simultaneously hermaphroditic shrimp Lysmata seticaudata parasitized by the bopyrid isopod Eophryxus lysmatae (an abdominal parasite). In the latter case, the abdominal bopyrid isopod caused the castration of the female function of its host.…”

Section: Discussioncontrasting

confidence: 99%

“…However, hippolytid shrimp of the genus Lysmata display a sexual system unique among decapod crustaceans -protandric simultaneous hermaphroditism (Bauer 2000). Calado et al (2005) demonstrated that the bopyrid isopod Eophryxus lysmatae (Caroli, 1930), an abdominal parasite, caused parasitic castration of the female function of the simultaneous hermaphrodite Lysmata seticaudata (Risso, 1816). Nevertheless, parasitized hosts could still successfully act as males and fertilize egg clutches.…”

Section: Resale or Republication Not Permitted Without Written Consenmentioning

confidence: 99%

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Bopyrid isopods do not castrate the simultaneously hermaphroditic shrimp Lysmata amboinensis (Decapoda: Hippolytidae)

Calado

Vitorino²,

Dinis³

2006

Dis. Aquat. Org.

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Section: Discussioncontrasting

confidence: 99%

Section: Resale or Republication Not Permitted Without Written Consenmentioning

confidence: 99%

Bopyrid isopods do not castrate the simultaneously hermaphroditic shrimp Lysmata amboinensis (Decapoda: Hippolytidae)

Calado

Vitorino²,

Dinis³

2006

Dis. Aquat. Org.

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“…On the other hand, Oliveira & Masunari (1998) have recorded juveniles of P. armatus infested by it parasites in early developmental stages. Indeed, is well established that a high percentage of parasites can be retained after host molt (Van Wyk, 1982;Cash & Bauer, 1993;Calado et al, 2005). To explain the absence of parasitism in the largest individuals Van Wyk (1982) have hypothesized some possibilities: 1) higher mortality rates in the parasitized group, 2) loss of parasites by the host, probably caused by differences in duration of the life cycles of the organisms involved, and/or 3) it could be that growth is reduced due to parasitism and this restricts maximum size.…”

Section: Discussionmentioning

confidence: 99%

“…com. ), shrimps of the families Hippolytidae (Calado et al, 2005;Román-Contreras & Romero-Rodríguez, 2005;Terossi & Mantelatto, 2010) and Palaemonidae (Beck, 1979;Cash & Bauer, 1993), and brachyuran crabs (Jordá & Roccatagliata, 2002).…”

Section: Introductionmentioning

confidence: 99%

Temporal dynamic of the relationship between the parasitic isopod Aporobopyrus curtatus (Crustacea: Isopoda: Bopyridae) and the anomuran crab Petrolisthes armatus (Crustacea: Decapoda: Porcellanidae) in southern Brazil

Mantelatto¹,

Miranda²

2010

LAJAR

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ABSTRACT. The prevalence of the parasite Aporobopyrus curtatus in Petrolisthes armatus from southern Brazil was determined, and the effect the parasite had on host reproduction was evaluated. Of all 775 crabs sampled in Araçá region from March 2005 to July 2006, 3.2% presented bopyrid parasites. All the parasitized individuals had one branchial chamber occupied by two mature parasites, with no preference for the right or left chamber. Male and female hosts were infested in equal proportions. Parasitized juveniles, large individuals and ovigerous females were not found in our study. The absence of parasitized ovigerous females seems to be insufficient evidence to support the hypothesis of parasitic castration and would require a histological study to confirm their reproductive death. The percentage of infestation observed in our study (3.1%) is lower than the one found in other studies and it could indicate the existence of factor(s) regulating the density of A. curtatus in the Araçá region. At least in this population, the low but constant presence of the bopyrid A. curtatus population did not appear to have a negative effect on the porcellanid population, and parasitized individuals did not play a significant role in the natural history of P. armatus. Keywords: parasitism, castration, porcelain crab, southern Brazil, Atlantic Ocean. Dinámica temporal en la relación entre el isópodo parásito Aporobopyrus curtatus(Crustacea: Isopoda: Bopyridae) y el cangrejo anomuro Petrolisthes armatus (Crustacea: Decapoda: Porcellanidae) en el sur de Brasil RESUMEN. Se determinó la prevalencia del parásito Aporobopyrus curtatus en Petrolisthes armatus en el sur de Brasil y se evaluó el efecto de su presencia en la reproducción de su huésped. De marzo de 2005 a julio de 2007 se muestreó en la Region de Araçá un total de 775 cangrejos, de los cuales el 3,2% presentó bopíridos parásitos. Todos los individuos parasitados presentaron una cámara branquial ocupada por dos parásitos maduros, sin preferencia por la cámara derecha o izquierda. Machos y hembras hospedadores fueron infectados en la misma proporción. La ausencia de parásitos en hembras ovígeras no es evidencia suficiente para apoyar la hipótesis de castración parasítica, y se necesita un estudio histológico para confirmar la muerte reproductiva. El porcentaje de infectación observado (3,1%) es inferior al encontrado en otros estudios y puede ser indicativo de la existencia de factor(es) que regulan la densidad de A. curtatus en la region de Araçá. En conclusión, estos resultados sugieren que, al menos en esta población, la baja y constante incidencia del bopírido A. curtatus parece no afectar la población del porcelánido, y los individuos parasitados no tienen un papel significativo en la historia natural de P. armatus. Palabras clave: parasitismo, castración, cangrejo de porcelana, sur de Brasil, océano Atlántico.

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“…Bopyrids exhibit sexual dimorphism: the female being larger than the male and having a body that is more or less deformed and asymmetrical; the male is usually found attached to the female pleopods and is of a more typical isopod form (Sars 1898). Bopyrids may have several effects on primary and secondary sexual characters of their hosts, even producing parasitic castration (Reverberi 1943, Pike 1953, Beck 1980, Calado et al 2005.…”

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confidence: 99%

A new locality and host for Pseudione crenulata G.O. Sars, 1898 (Crustacea, Isopoda, Bopyridae) in the Mediterranean

Castriota

Falautano

Vivona

et al. 2010

Acta Parasitologica

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Short report on the effect of a parasitic isopod on the reproductive performance of a shrimp

Cited by 27 publications

References 14 publications

Bopyrid isopods do not castrate the simultaneously hermaphroditic shrimp Lysmata amboinensis (Decapoda: Hippolytidae)

Bopyrid isopods do not castrate the simultaneously hermaphroditic shrimp Lysmata amboinensis (Decapoda: Hippolytidae)

Temporal dynamic of the relationship between the parasitic isopod Aporobopyrus curtatus (Crustacea: Isopoda: Bopyridae) and the anomuran crab Petrolisthes armatus (Crustacea: Decapoda: Porcellanidae) in southern Brazil

A new locality and host for Pseudione crenulata G.O. Sars, 1898 (Crustacea, Isopoda, Bopyridae) in the Mediterranean

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