Membrane retention potential of Tachypleus gigas during early embryogenesis

Nelson, Bryan Raveen; John, Julia Hwei Zhong Akbar; John, Akbar; Zhong, Julia Hwei; Jalal, K. C. A.

doi:10.5004/dwt.2020.25272

Cited by 2 publications

(2 citation statements)

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“…Meanwhile, the ability to allocate energy is a strategy also discovered in Tachypleus gigas. Horseshoe crab embryos use energy allocation to manage stress from the external environment [Nelson et al 2020]. When applied, energy allocation that manages stress compensates for the growth of the horseshoe crabs, which means the life stages related to molt cycles could either become delayed or collectively, the entire population would possess unique morphology measurements.…”

Section: Introductionmentioning

confidence: 99%

From Descriptive to Accurate Horseshoe Crab Size Variations in Wild Populations

Chan¹,

John²,

Shahimi³

et al. 2022

J. Ecol. Eng.

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Horseshoe crabs have survived until Holocene, but their persistence beyond the Anthropocene is challenged by drastic environment changes that entail impoverishments and the resultant unusual growth sizes. Previously, allometry via morphometric ratio was introduced to classify horseshoe crabs into normal-abnormal growth. However, the descriptive size and weight analysis indicated a considerable portion of Tachypleus gigas with normal allometry. This error was caused by the median sorting of values. Therefore, the same data was treated with correlation before generating a linear equation. By being sexual dimorphs, these arthropods actually have gender-specific morphology indicators which could generate a functional allometry. Since the assessed arthropods were mature, the 19 % yield of smaller female T. gigas was possibly due to degradation effects from poor diets or stress. Yet, for this population, an added risk was female-only harvest. Perhaps, close sizing to male counterparts could be perceived a survival strategy by the female T. gigas. More evidence is needed to strengthen this opinion but for now, this assessment method is novel for accurate allometry assessments in the species with sexual dimorphism. Overall, capture fisheries could have negative impacts and when made severe by sex-specific harvest, the unaccounted practices could collapse sustaining populations.

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Section: Introductionmentioning

confidence: 99%

From Descriptive to Accurate Horseshoe Crab Size Variations in Wild Populations

Chan¹,

John²,

Shahimi³

et al. 2022

J. Ecol. Eng.

View full text Add to dashboard Cite

show abstract

“…Oppenheim et al, 1974;Weaver et al, 1988). Modern applications include the use of T. gigas embryonic perivitelline fluid to enhance cell growth, ionic regulation (for biological filtering) and treat cardiovascular diseases, while its hemolymph is used as a tumor marker, indicate endotoxin presence and as an antibiotic (Srimal et al, 1985;Ghaskadbi et al, 2008;Mirshahi et al, 2011;Pati et al, 2015;Chinnari et al, 2015;Nelson et al, 2020;Nong et al, 2020).…”

Section: Introductionmentioning

confidence: 99%