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Between June 2012 and January 2013, nine specimens of the giant tiger shrimp Penaeus monodon Fabricius, 1798 were caught off the Mexican Gulf coast. The average total length of these specimens was 28.1 cm. This is the first record of this invasive shrimp on the Mexican Gulf coast. The appearance of this shrimp species is a concern because of the effects it could produce on the Gulf coast ecosystem.

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In this work, the effects of visible implant elastomer (VIE) tags on survival and body growth rate on juvenile red octopus Octopus maya from the Yucatan Peninsula were tested under controlled conditions. Juveniles with an average weight of 1.14 g were not affected by VIE within 30 days, so this methodology is suggested as a useful tool to study the life cycle aspects of this important fishery species.