Infestation by the epibiont Octolasmis lowei in a portunid crab assemblage from a subtropical coast

Silva-Inácio, Lylian Marcia da; Machado, Glauco; Fortuna, Monique D'Assunção; Sanches, Fábio Henrique Carretero; Costa, Tânia Márcia

doi:10.1590/2358-2936e2016022

Cited by 4 publications

(1 citation statement)

References 31 publications

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“…In this study, sample found the average weight of females is greater than that of males, this is in contrast to that obtained by Pudiawati and Patria (2017) on S. oceanica in mangrove area in Tanjung Lesung, Banten, Indonesia. However, Santos and Bueno (2002); Silva-Inácio et al (2016) stated that there was no correlation found between the prevalence of O. lowei infestation and the carapace width of males or females in blue crabs and portunid crab.…”

Section: Mercury (Hg) Accumulation In Parasites and Crab Hostsmentioning

confidence: 99%

The potential use of Octolasmis spp. parasites in mud crabs Scylla spp. as a bioindicator for mercury pollution

et al. 2021

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Abstract. Nur I, Aris EA, Yusnaini Y, Beavis S. 2021. The potential use of Octolasmis spp. parasites in mud crabs Scylla spp. as a bioindicator for mercury pollution. Biodiversitas 22: 3764-3772. Artisanal small-scale gold mining and the use of mercury is widespread across Indonesia, often characterized by relatively short-lived gold rushes. In the late and post-mining phases, mercury stored in mine tailings and river beds was transported down catchment, posing risks to ecosystems and human health over much longer time scales. These risks can be under-rated when mercury concentrations in water, sediments, and aquatic species are low enough to meet relevant guideline thresholds. In this study in Southeast Sulawesi, Indonesia, we have investigated the Costraca barnacle, Octolasmis, as a bioindicator of mercury contamination. The presence of Octolasmis parasites in mud crabs, Scylla spp., and the accumulation of mercury (Hg) in the hosts, parasites, and the ambient environment, were analyzed across both dry and wet seasons. Severe infestation of Octolasmis was assessed using prevalence, abundance, and intensity. Hg concentrations were significantly higher in the Octolasmis parasites than in the host tissues, water and sediments. The mean bioconcentration factor (BCF) of Hg equaled 7938.21 from water to parasites, and 28.91 from the host’s gill tissue to the parasites. The results suggest that Octolasmis spp. can be used effectively as a bioindicator in coastal catchments impacted by mercury contamination, even when concentrations of mercury are low in water and river sediments. The study provides the first report of Octolasmis spp. parasitized to mud crabs as a reliable bioindicator of Hg contamination and pollution.

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Section: Mercury (Hg) Accumulation In Parasites and Crab Hostsmentioning

confidence: 99%

The potential use of Octolasmis spp. parasites in mud crabs Scylla spp. as a bioindicator for mercury pollution

et al. 2021

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Molecular phylogeny, prevalence and intensity adhesion of ectosymbiotic epibiont, Chelonibia barnacles (Crustacea: Cirripedia: Chelonibiidae) on the blue crab, Portonus segnis from Persian Gulf

Hosseini¹,

Sakhaei²,

Zamani³

2023

Biologia

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Pathology Anatomy and Hemolymph Profile of Spiny Lobster (Panulirus homarus) Infested by Octolasmis sp. on Bottom Cage

Bahtiar,

Mahasri,

Ulkhaq

2024

J. Med. Vet.

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Spiny lobster, a fishery commodity with important economic value, is often infested by Octolasmis sp. on their bodies, which causes stress conditions that lead to death. This study aimed to determine the anatomical pathology and hemolymph profile of spiny lobster infested with Octolasmis sp. in bottom cages. The method used was an observation, where 30 lobsters (weight 112.44 ± 24.63 g) were carried out in June–July 2022 at the Pesona Bahari Wongsorejo, Banyuwangi. Hemolymph profile and anatomical pathology data were analyzed, respectively, using the Independent T-Test and Kruskal-Wallis test (α = 95%). The results based on scoring data showed a very significant difference between infected and healthy lobsters (p < 0.01), characterized by the occurrence of tail flakes, lesions on the carapace, gill melanization, and the appearance of ulcers on the ventral abdomen. A very significant change occurred in the hemolymph profile of infected lobsters compared to healthy lobsters (p < 0.01). Total hemocyte count increased with high concentrations of granular cells, respectively 22.1–37.8 ´x 106 cells/mL and 63.75–64.5%, along with lobster damage, while hyaline cells decreased. This study showed that there was a change in anatomic pathology and hemolymph profile between infected and healthy lobsters.

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Infestation by the epibiont Octolasmis lowei in a portunid crab assemblage from a subtropical coast

Cited by 4 publications

References 31 publications

The potential use of Octolasmis spp. parasites in mud crabs Scylla spp. as a bioindicator for mercury pollution

The potential use of Octolasmis spp. parasites in mud crabs Scylla spp. as a bioindicator for mercury pollution

Molecular phylogeny, prevalence and intensity adhesion of ectosymbiotic epibiont, Chelonibia barnacles (Crustacea: Cirripedia: Chelonibiidae) on the blue crab, Portonus segnis from Persian Gulf

Pathology Anatomy and Hemolymph Profile of Spiny Lobster (Panulirus homarus) Infested by Octolasmis sp. on Bottom Cage

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