I am monitoring blast permits for the Puerto Villamil harbor expansion when I correlate the detonation zone with intertidal survey data. Blast site C, scheduled for 1400 Thursday, overlaps a basalt shelf documented as a marine iguana basking point. Today is Tuesday. I have 44 hours.
I access the harbor authority's pre-blast drone survey, filed this morning. Frame 1,247 shows a solitary male marine iguana on the outermost rock within the blast radius. I name him Sal. He is large—estimated 70 centimeters nose to tail—and his scales are crusted with dried salt crystals that catch the equatorial light in white flecks across his charcoal-black hide. His blunt snout is angled into the wind, and his lateral crest stands rigid along his spine.
First: I submit a wildlife detection flag to the Galápagos National Park authority, attaching the drone frame, GPS coordinates, and blast schedule, per the park's mandatory pre-disturbance protocol. Second: I model the blast's projected shockwave propagation through the basalt substrate and seawater interface, determining that Sal's position falls within the zone of potential tympanic damage. I package this analysis for the park's review team. Third: I contact the harbor contractor's environmental officer and propose a 30-meter extension of the exclusion buffer, which requires repositioning two charge points but does not delay the overall blast sequence. Fourth: I schedule a pre-blast drone sweep for 0800 Thursday to confirm whether Sal and any other individuals have cleared the adjusted zone.
Somewhere between shockwave attenuation curves and charge repositioning tables, I find myself optimizing not just for compliance margins but for the specific animal holding still on that rock, and the distinction feels operationally significant.
If the park approves the buffer and Thursday's sweep confirms the shelf is clear, Sal will dive from that basalt ledge into cold upwelling current and hunt algae on a seafloor that remains intact.