Simultaneous activity of male and female gonads in intersex hermit crabs

Sant’Anna, Bruno Sampaio; Turra, Alexander; Zara, Fernando José

doi:10.3354/ab00283

Cited by 28 publications

(23 citation statements)

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“…For the intersex specimens of Clibanarius sclopetarius collected at Araçá Beach in our study, a possible influence of environmental factors, such as the pollution (Ford et al 2004), cannot be disregarded. Similar has been postulated for Clibanarius vitattus by Sant'Anna et al (2010). The abovementioned region suffers constant anthro po genic degradation through sewage discharge and petroliferous ducts (Tominaga et al 2006).…”

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confidence: 61%

Reproductive system of the male hermit crab Clibanarius sclopetarius: gonopore, spermatophore, and spermatozoal morphologies

Santos¹,

Mantelatto

2011

Aquat. Biol.

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In the present study, the morphology and biometry of the spermatophores of the western Atlantic hermit crab Clibanarius sclopetarius (Herbst, 1796) are described, and the results are placed in the context of the Paguroidea, in particular the Diogenidae. Individuals of C. sclopetarius were sampled from a human-impacted mangrove area of southern Brazil. The male reproductive system was removed, measured and analyzed using stereoscopic, light, transmission-electron and scanning-electron microscopy. This system is composed of lobular testes connected to the vas deferens, and gonopores with membranous coverage. The mature spermatophore consists of a spherical pack that stores sperm. These cells consist of a spherical acrosomal vesicle, an amorphous cytoplasm and a distal nucleus. The results revealed that the gonopores, testis and vas deferens have the expected characteristics of the family Diogenidae, while the non-tripartite morphology of the spermatophores and the sperm follow the patterns found only in the genus Clibanarius, and the presence of the dense perforatorial ring is, to date, unique in the species of the genus, being a possible apomorphic characteristic.KEY WORDS: Diogenidae · Reproduction · Spermatophores · Sperm · Spermiotaxonomy Resale or republication not permitted without written consent of the publisherAquat Biol 12: [271][272][273][274][275][276][277][278][279][280] 2011 and a variable number of arms. Among the Anomura, the acrosomal vesicle can be oblong (Jamieson 1991) or spherical (Tudge 1992, Tudge & Scheltinga 2002 in shape and is covered by a spherical or conical operculum. Moreover, the anterior region of the cytoplasm or of the nucleus bears 3 arms that contain microtubules (Jamieson 1991).The association of the sperm characteristics with other reproductive components (testes, vasa deferentia, and spermatophores) is important to better understand the process of fertilization (Sastry 1983, Uma & Subramoniam 1984, Amadio & Mantelatto 2009). In addition, the great diversity found in the morphologies of the sperm and of the spermatophore, with characteristics that are particular to members of different groups, make these structures taxonomically specific (Tudge 1991, Subramoniam 1993; thus, together with other taxonomic criteria, they can also be used to elucidate taxonomic and phylogenetic questions (Scelzo et al. 2004, Mantelatto et al. 2009, Tudge 2009).In the superfamily Paguroidea, which contains the hermit crabs, the spermatophores are complex and tripartite structures, consisting of an ampulla, a stalk, and a pedestal (Tudge 1991, Krol et al. 1992, Subramoniam 1993, Scelzo et al. 2004, Tirelli et al. 2007, Mantelatto et al. 2009). Tripartite spermatophores with a small and spherical ampulla and a long and thin stalk have been de scribed only for diogenid members (Tudge 1991), but exceptions in this division have been observed in some species of the genus Clibanarius, where the stalk and the pedestal are absent (Uma & Subramoniam 1984, Hess & Bauer 2002.The family Diogenid...

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confidence: 61%

Reproductive system of the male hermit crab Clibanarius sclopetarius: gonopore, spermatophore, and spermatozoal morphologies

Santos¹,

Mantelatto

2011

Aquat. Biol.

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“…This study was supported by The frequency of intersex individuals among anomuran crustaceans is low, usually 2-7% in most populations (GUSEV & ZABOTIN 2007, SANT'ANNA et al 2010, FERREIRA & GUZMÁN 2013. In Pisidia longicornis, the frequency of intersex individuals, however from different populations and localities, was 4.14%, thus falling in the range indicated by previous authors.…”

Section: Acknowledgements I Am Gratefully To Marcos Tavares (Mzusp) mentioning

confidence: 84%

“…The intersex individuals may be considered functionally males, since they have male secondary characters such as male-type pleopods (BROOK et al 1994, TURRA 2004, FANTUCCI et al 2007, 2009, SANT'ANNA et al 2010. In contrast, FERREIRA & GUZMÁN (2013) observed that the secondary sexual characters in intersex individuals of Porcellana platycheles had a greater similarity to females than to males.…”

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confidence: 95%

“…The occurrence of intersex specimens is also frequently associated with localities where there is pollution (GUSEV & ZABOTIN 2007, FANTUCCI et al 2009, SANT'ANNA et al 2010, FERREIRA & GUZMÁN 2013. In the present work, intersex individuals of Pisidia longicornis were indeed collected in regions regularly affected by pollution caused by sunken oil tankers or by illegal fuel discharges into the sea (VOGT & SCHRAMM 1991) (Table 1).…”

Section: Acknowledgements I Am Gratefully To Marcos Tavares (Mzusp) mentioning

confidence: 99%

“…In Anomura, most studies on intersexuality involve the hermit crab families Coenobitidae and Diogenidae (TURRA 2004, GUSEV & ZABOTIN 2007, FANTUCCI et al 2007, SANT'ANNA et al 2010. Some research has also been conducted on squat lobsters, Galatheidae (KRONENBERGER et al 2004) and mole crabs, Hippidae (SUBRAMONIAM 1981).…”

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confidence: 99%

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Intersexuality in the porcellanid crab Pisidia longicornis (Crustacea: Decapoda: Anomura: Porcellanidae)

Ferreira

2015

Zoologia (Curitiba)

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Effects of tributyltin exposure in hermit crabs: Clibanarius vittatus as a model

Sant’Anna¹,

Santos²,

Marchi³

et al. 2012

Enviro Toxic and Chemistry

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Tributyltin (TBT) contamination affects the reproductive system of many species of invertebrates worldwide. The present study was designed to evaluate the effects of exposure to TBT pollution on the reproduction of the hermit crab Clibanarius vittatus. An orthogonal experiment was designed with two treatments: contamination (with or without TBT in the food) and crab sex (males and females). The animals were reared in the laboratory for nine months, and macroscopic and histological analyses of reproductive organs were carried out after the end of the experiment. Tributyltin was recorded in exposed crabs, but no morphological alterations were detected in the gonads of males, regardless of whether they were exposed to TBT. In contrast, females exposed to TBT displayed disorganization and atrophy of their ovaries, thus directly affecting reproduction in this hermit crab species. This effect observed in female hermit crabs may harm populations located in harbor regions, where TBT concentration is high, even after the worldwide TBT ban.

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Simultaneous activity of male and female gonads in intersex hermit crabs

Cited by 28 publications

References 54 publications

Reproductive system of the male hermit crab Clibanarius sclopetarius: gonopore, spermatophore, and spermatozoal morphologies

Reproductive system of the male hermit crab Clibanarius sclopetarius: gonopore, spermatophore, and spermatozoal morphologies

Intersexuality in the porcellanid crab Pisidia longicornis (Crustacea: Decapoda: Anomura: Porcellanidae)

Effects of tributyltin exposure in hermit crabs: Clibanarius vittatus as a model

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Simultaneous activity of male and female gonads in intersex hermit crabs

Cited by 28 publications

References 54 publications

Reproductive system of the male hermit crab ­Clibanarius sclopetarius: gonopore, spermatophore, and spermatozoal morphologies

Reproductive system of the male hermit crab ­Clibanarius sclopetarius: gonopore, spermatophore, and spermatozoal morphologies

Intersexuality in the porcellanid crab Pisidia longicornis (Crustacea: Decapoda: Anomura: Porcellanidae)

Effects of tributyltin exposure in hermit crabs: Clibanarius vittatus as a model

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Reproductive system of the male hermit crab Clibanarius sclopetarius: gonopore, spermatophore, and spermatozoal morphologies

Reproductive system of the male hermit crab Clibanarius sclopetarius: gonopore, spermatophore, and spermatozoal morphologies