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Citation

Shinn A, Muhlholzl AP, Coates C, Freeman M & Metochis C (2015) Zoothamnium duplicatum infestation of cultured horseshoe crabs (Limulus polyphemus). Journal of Invertebrate Pathology, 125, pp. 81-86. https://doi.org/10.1016/j.jip.2014.12.002

Abstract
An outbreak of the sessile peritrich Zoothamnium duplicatum in a pilot, commercial-scale Limulus polyphemus hatchery resulted in the loss of ∼ 96% (40,000) second/third instar larvae over a 61 day period. Peritich growth was heavy, leading to mechanical obstruction of the gills and physical damage. The peritrichs were controlled without resultant loss of juvenile crabs by administering 10 ppm chlorine in freshwater for 1 h and the addition of aquarium grade sand; a medium into which the crabs could burrow and facilitate cleaning of the carapace. Peritrich identity was confirmed from a partial SSU rDNA contiguous sequence of 1343 bp (99.7% similarity to Z. duplicatum).

Journal
Journal of Invertebrate Pathology: Volume 125

• Coates_JIP 2014.pdf