Abstract
A survey for Infectious Hypodermal and Haematopoietic Necrosis Virus (IHHNV) and White Spot Syndrome Virus (WSSV) was performed during two catching seasons of native shrimps in the Yucatan Coast in the Gulf of Mexico. The mtDNA COI barcode identified two endemic species; the southern pink shrimp Penaeus notialis (Pérez Fantante, 1967) and the northern pink shrimp Penaeus brasiliensis (Latreille, 1987) (previously described as Farfantepenaeus brasiliensis). The prevalence of IHHNV was of 18.18% in 2016, and of 8.57% in 2017. All organisms tested negative for WSSV. This is the first identification of wild shrimps in the state of Yucatan Mexico by mtDNA COI barcode as well as the first identification of IHHNV in such species. The presence of IHHNV in wild shrimps populations has a potential of persisting in the coast of Yucatan with putative detrimental effect on local fisheries because once established in natural waters and hosts; such pathogens are almost impossible to eradicate.
Highlights
The mtCOI DNA sequences were submitted to the GenBankTM and the results are shown in Table 1, observing a proportion of 69.6% for P. notialis and 30.3% for P. brasiliensis in 2016
The shrimps sampled during both years showed infection with Infectious Hypodermal and Haematopoietic Necrosis Virus (IHHNV) but not with White Spot Syndrome Virus (WSSV)
A prevalence of 13% was observed for IHHNV in P. notialis, while 30% was detected in F. brasiliensis in 2016
Summary
The small-scale local fishery for shrimps and prawns supports the income of lo-. Cal fisheries of the Yucatan Peninsula [1]. In this artisanal fishery, there is little bycatch and limited disruption to the benthic (bottom) habitat. There is little bycatch and limited disruption to the benthic (bottom) habitat This strategy produces high-quality shrimp with minimal adverse impacts on the local ecosystem [2]. The Mexican government regulates this fishery by way of established fishing seasons and gear restrictions [1]. These restriction protocols help to protect its long-term sustainability.
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