HISTOLOGY OF A BILATERAL GYNANDROMORPH OF THE BLUE CRAB,<i>CALLINECTES SAPIDUS</i>RATHBUN (DECAPODA: PORTUNIDAE)

Johnson, Phyllis T.; Otto, S. V.

doi:10.2307/1540801

Cited by 32 publications

(54 citation statements)

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“…7). Such bilateral gynandromorphism also is commonly noted in reports of intersex among the other crustacean genera (e.g., Johnson and Otto 1981;Taylor 1986;Micheli 1991) (Fig. 6).…”

Section: Intersex Incidencesupporting

confidence: 69%

“…The literature is replete with reports of intersex malacostracan decapods including the fiddler crab Uca pugilator (Zou and Fingerman 2000), freshwater crab Potamon fluviatile (Micheli 1991), snow crab Chionoecetes opilio (Taylor 1986), blue crab Callinectes sapidus (Johnson and Otto 1981), rock crab Cancer irroratus (Moriyasu et al 1988), trapezoid crab Quadrella coronata (Galil and Tom 1990), hermit crabs Clibanarius sp. (Turra 2004), lobster H. americanus (Chace and Moore 1959), crayfish Cherax quadricarinatus (Sagi et al 2002), burrowing crayfish Parastacus varicosus (Rudolph et al 2001), freshwater crayfish Samastacus spinifrons (Rudolph 2002), mud shrimp Upogebia stellata (Pinn et al 2001), penaeid shrimp Penaeopsis sp.…”

Section: Intersex Incidencementioning

confidence: 99%

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Crustacean endocrine toxicology: a review

2007

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Crustaceans are major constituents to aquatic ecosystems that provide a variety of ecological and economic services. Individual crustacean species are adept at occupying diverse niches and their success, in part, stems from neuro-endocrine signaling cascades that regulate physiology in response to environmental and internal cues. Peptide hormones are major signal transducers in crustaceans. The crustacean hyperglycemic hormone family of peptides regulates various aspects of growth, reproduction, and metabolism. These peptides may function as the terminal hormone to regulate some physiological activities or may function as intermediates in a signaling cascade. Ecdysteroids and terpenoids are two major classes of terminal signaling molecules in these cascades. Hormones from these two classes function independently or in concert to regulate various processes. Ecdysteroid signaling is subject to toxicological disruption through disturbances in ecdysteroid synthesis or binding of toxicants to the ecdysteroid receptor. Methyl farnesoate is the major terpenoid hormone of crustaceans and also is susceptible to disruption by environmental chemicals. However, the methyl farnesoate signaling pathway is poorly understood and only limited mechanistic confirmation for disruption of this endocrine signaling pathway exists. Disruption of the ecdysteroid/terpenoid signaling pathways in crustaceans has been associated with aberrations in growth, metamorphosis, reproductive maturation, sex determination, and sex differentiation. Population studies have revealed disruptions in crustacean growth, molting, sexual development, and recruitment that are indicative of environmental endocrine disruption. However, environmental factors other that pollution (i.e., temperature, parasitism) also can elicit these effects and definitive causal relationships between endocrine disruption in field populations of crustaceans and chemical pollution is generally lacking.

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“…7). Such bilateral gynandromorphism also is commonly noted in reports of intersex among the other crustacean genera (e.g., Johnson and Otto 1981;Taylor 1986;Micheli 1991) (Fig. 6).…”

Section: Intersex Incidencesupporting

confidence: 69%

Section: Intersex Incidencementioning

confidence: 99%

Crustacean endocrine toxicology: a review

2007

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“…In the decapod crustaceans, one manifestation of intersexuality involves the presence of externally visible male and female genital openings. In the Norway lobster Nephrops norvegicus, the blue crab Callinectes sapidus, the European lobster Homarus gammarus and in several species of hermit crabs, this has been shown in some cases to correspond to complete internal bilateral separation of the reproductive system into male and female components, forming a socalled gynandromorph (Gordon 1957, Chace & Moore 1959, Farmer 1972, Johnson & Otto 1981, Sant'Anna et al 2010. Similar externally visible male and female genital openings have been reported for the freshwater crayfish Cherax quadricarinatus.…”

Section: Introductionsupporting

confidence: 55%

Histological intersex (ovotestis) in the European lobster Homarus gammarus and a commentary on its potential mechanistic basis

Stentiford¹

2012

Dis. Aquat. Org.

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This paper provides the first report of the intersex (ovotestis) condition in the European lobster Homarus gammarus. A single specimen (10% of males sampled) presenting the condition was discovered as part of routine sampling, from the Weymouth Bay region of the English Channel, UK. The lobster presented externally as a male, but upon histological examination was seen to contain an ovotestis, containing elements of both male and female gonadal tissue. Previtellogenic oocytes were present in several otherwise normal seminiferous tubules throughout the testis. The seminiferous tubules were also engaged in the production of apparently normal sperm lineages, and mature spermatozoa were present within the tubule lumens. In some cases, oocytes were in direct contact with mature spermatozoa within the same seminiferous tubules. The significance of this finding is placed into context with a previous observation of elevated intersexuality in the congeneric species H. americanus collected from specific sites in Canadian waters. The potential mechanism for development of intersex in lobsters, which is probably related to a disrupted signalling to the germinal component of the testis from the decapod androgenic gland, may be an effect of exposure to endocrine disrupting chemicals in the marine environment.KEY WORDS: Crustacean · Decapoda · Androgenic gland · Endocrine disruption · Commercial fishery Resale or republication not permitted without written consent of the publisherContribution to DAO Special 6 'Disease effects on lobster fisheries, ecology, and culture'

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“…These included systemic bacterial infections likely linked to the stress of commercial capture (Johnson, 1976c(Johnson, , 1976d, infection by the protist Paramoeba perniciosa, again linked with stress of capture and post-capture holding (Johnson, 1977b), and several apparently idiopathic conditions including so-called 'gas bubble disease' caused by air supersaturation of seawater (Johnson, 1976e). Her access to wild blue crabs also led to descriptions of fascinating rarities such as a bilateral gynandromorph crab, the first example of such in the Brachyura and, which had apparently ''copulated as a female and may have copulated as a male" (Johnson and Otto, 1981).…”

Section: To Understand the Abnormalmentioning

confidence: 99%

Phyllis T. Johnson – Pioneer of marine invertebrate pathology

Stentiford

2016

Journal of Invertebrate Pathology

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HISTOLOGY OF A BILATERAL GYNANDROMORPH OF THE BLUE CRAB,CALLINECTES SAPIDUSRATHBUN (DECAPODA: PORTUNIDAE)

Cited by 32 publications

References 0 publications

Crustacean endocrine toxicology: a review

Crustacean endocrine toxicology: a review

Histological intersex (ovotestis) in the European lobster Homarus gammarus and a commentary on its potential mechanistic basis

Phyllis T. Johnson – Pioneer of marine invertebrate pathology

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