Bacterial diseases of crabs: A review

Wang, W.

doi:10.1016/j.jip.2010.09.018

Cited by 129 publications

(49 citation statements)

References 107 publications

(124 reference statements)

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“…Getchell, 1989), or the haemolymph . (Tubiash et al, 1975;Wang, 2011). Intracellular bacterial infections occur within specific types of host cell (see Vincent et al, 2004;Eddy et al, 2007).…”

Section: Diseases Of Crustaceansmentioning

confidence: 99%

Disease will limit future food supply from the global crustacean fishery and aquaculture sectors

Stentiford

Neil

Peeler

et al. 2012

Journal of Invertebrate Pathology

394

209

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Section: Diseases Of Crustaceansmentioning

confidence: 99%

Disease will limit future food supply from the global crustacean fishery and aquaculture sectors

Stentiford

Neil

Peeler

et al. 2012

Journal of Invertebrate Pathology

394

209

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“…Despite their key ecological relevance for carbon cycling on the damp band of sandy beaches, to date there are very limited reports on T. saltator-associated gut microbial flora (Nuti et al, 1971;Martineti et al, 1995). In contrast, several reports on Crustacea-associated microorganisms are present, but mainly linked to health and aquaculture issues (Small and Pagenkopp, 2011;Wang, 2011) or to the presence of Wolbachia infections (Cordaux et al, 2012). There are no investigations on the total microbial communities carried by Crustaceans, despite the fact that in recent years, invertebrate microbiology is attracting more attention for its implication in biocontrol (Natrah et al, 2011) and animalemicrobe interaction studies (Muller et al, 2008;Olson and Kellogg, 2010;Goffredi, 2011).…”

Section: Introductionmentioning

confidence: 99%

High genetic diversity and variability of bacterial communities associated with the sandhopper Talitrus saltator (Montagu) (Crustacea, Amphipoda)

Mengoni

Focardi

Bacci

et al. 2013

Estuarine, Coastal and Shelf Science

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a b s t r a c tThe microbiome present in individuals of Talitrus saltator belonging to seven populations distributed along the Tuscan coast (Italy) was assessed by using Terminal-Restriction Fragment Length Polymorphism (T-RFLP) analysis of amplified 16S rRNA genes. Talitrus saltator is one of the key species of the damp band of European sandy beaches and despite of the large interest on animal-associated bacteria, only a few and preliminary data were present. Results showed a high diversity of the microbiome, composed mainly by members of Alphaproteobacteria, Gammaproteobacteria, Bacillales and Clostridiales classes. The microbiome fingerprints were highly variable among individuals, even from the same populations, the inter-individual differences accounting for 88.7% of total fingerprint variance. However, statistically significant population-specific microbiome signatures were detected, and accounted for the remaining 11.3% of total fingerprint variance. These population-specific differences were mainly attributed to sequences from members of known host-associated bacteria such as Gammaproteobacteria and Betaproteobacteria, Cytophagia and Spirochaetia. This study showed the high complexity of the microbiome associated with an amphipod species and on the inter-individual microbiome variation with potential importance for understanding amphipod trophic and ecologic processes.

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“…Initially it was thought bacterial infection to be restricted to the exterior surfaces of the exoskeleton, recent studies showed that shell disease is not a disease caused by a single pathogen and solely restricted to the exoskeleton (Wang et al, 2011). Though the findings of in the edible crab Cancer pagurus explains there is no significant correlation between bacterial shell infection and hemocyte count, in a previous study of Vogan et al (2001), individuals exhibiting shell disease were shown to have internal infections.…”

Section: Discussionmentioning

confidence: 94%

“…All of these factors can impose candidate stress on the homeostatic mechanisms of crab rendering them susceptible to a wide variety of pathogens (Wang, 2011). Mu et al (2009a, b), Meng et al (2010) and more other researchers have reported aspects of crab immune system.…”

Section: Discussionmentioning

confidence: 99%

Shell disease of Neoepisesarma mederi crabs and its associated secondary infections

Sharmila¹,

Ravich²,

ran³

et al. 2013

Afr. J. Microbiol. Res.

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Shells of crabs are infected with a high prevalence of diseases than any other crustacean. Bacteria, viruses, fungi and several other pathogens influence higher percentage of shell disease in crabs. Infections in crab affected growth and metabolism and it may also lead to death. This work deals with the microscopic examination of shell diseased crabs with reference to its variation in hemocytes count, histopathology and biochemical estimation. The total heterotrophic bacterial (THB) population in normal shell was found to be 5.15 x 10 4 ± 0.09 Colony forming unit (CFU) ml -1 and THB load was noted to be slightly increased than in normal shell and the count was 5.95 x 10 4 ± 0.12 CFU ml -1 in the infected shell. The current findings suggest a positive correlation between bacterial shell disease and the secondary infection affecting hemolymph (total hemocyte count), proximate composition (protein, carbohydrate and lipid) and histopathology of the animal (gills, hepatopancreas and heart). The total hemocyte count and differential count were experimented which showed lower number of total hemocytes in infected crabs while no highly accountable difference was found in differential count. Hematology studies reported total hemocyte as 9.93 x10 6 ± 0.07 cells ml -1 in normal and 6.525 x 10 6 ± 0.12 cells ml -1 in shell diseased hemolymph. The level of protein, carbohydrate and lipid contents suffered a mild alteration in crabs with bacterial shell disease. Histopathology of gills had shown variations such as dilated lamellae and hemocyte accumulation (nodules), hepatopancreas showed mild difference with increased necrosis, appearance of hemocytic nodules in the hemal spaces and heart with very mere infection while no reportable changes were accomplished in muscle tissue.

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Bacterial diseases of crabs: A review

Cited by 129 publications

References 107 publications

Disease will limit future food supply from the global crustacean fishery and aquaculture sectors

Disease will limit future food supply from the global crustacean fishery and aquaculture sectors

High genetic diversity and variability of bacterial communities associated with the sandhopper Talitrus saltator (Montagu) (Crustacea, Amphipoda)

Shell disease of Neoepisesarma mederi crabs and its associated secondary infections

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