I'm not sure why you're so hostile, but you wandered into the wrong house with that tone.

In that spirit, a few points of order here.

First, it is quite likely I've got more agronomic experience than you do, including years of selling, managing, applying, and handling fertilizers, chemicals, seed, lime, and fuel. I was also certified in hazmat incident response once upon a time, which includes training in mitigating the impact of contaminants to the local ecosystem.

Second, I'm familiar with shrimp production, including brackish water shrimp farming practices.

Third, most farmed shrimp species thrive at salinity levels of about 20-25 ppt of salt content in the water, or slightly less than the average concentration of 35 ppt in regular seawater.

Fourth, brackish water shrimp farming impacts the local ecosystem due to the practice of constantly draining and refilling the ponds over years. The salt leeches into the watershed because massive quantities of saline water are concentrated into a small area, with the salt content maintained constantly at high levels. The ponds are discharged locally (i.e. drained into the local watershed) for the non-growing season, before repeating the cycle a few months later.

Fifth, it thus takes years of intensive shrimp farming to meaningfully impact soil salinity. Contrast that to the relatively small quantities of seawater that would be broadcast over any given acreage to fight fires over a very short period of time.

Sixth, most soils in the impacted regions of the fires are neutral to alkaline. Saltwater lowers pH (i.e. makes the soil more acidic). Fires increase pH (i.e. makes the soil more alkaline). It mostly balances out, if anything, with the slightly alkaline balance of the soil suggesting that it would be safe as a one-off tactic to broadcast saltwater as a firefighting measure.

Seventh, a bigger concern for soil quality from the fires is the sudden release of heavy metals and other elements from the rapid destruction of so much organic matter. This tips the delicate balance of the soil's ecosystem in the short-to-intermediate term far more than limited quantities of saltwater. The impacted areas aren't becoming the Salton Sea anytime soon.

Eighth, ash is hydrophobic, meaning the broadcast saltwater doesn't absorb as much into the soil and watershed. The water will mostly evaporate on the surface and leave a salt layer that will be more readily mitigated by natural processes than the deeper penetration of saltwater into the watershed that occurs after years of intensive shrimp farming.

Summing up, this isn't even an apples-to-apples comparison, but I can see how it would sound smart to you right up until you ran into a guy who understands what terms like "salinity", "cation exchange capacity", "pH levels", etc actually mean.

So while I might not be a certified agronomist, I did stay at a Holiday Inn Express last night and am generally not regarded as an idiot when it comes to natural resources, notwithstanding many other legitimate critiques of me.