Without going through all of the previous comments, I would like to use my new powers as an official donor to say that I found the reported feedback to this story to be incredibly unjust in its unfortunate criticisms, and that I, for one, would like to hear more of this sort of story in the future.
What initially fascinated me about this tale was the ambiguity of how long the protagonist had been forming his plan, and had known that he would very probably eventually need to martyr himself. Several lines in the story hint at a deep insight of the core principles of the surrounding characters, which may have even predated the original accident in catalyzing events, as the protagonist could have consciously or subconsciously been dissatisfied with the superficiality of the original scans and the willingness of his "mates" to overlook deeper exploration to ensure no loss of alien life. He may have been willing to permanently die on his initial expedition simply for the barest chance of a squid-like being. When he announces "This is it" in regards to the discovery, it suggests something that he had been waiting for or anticipating, with great carried meaning (perhaps the ultimate meaning as an explorer), and this drive, in my opinion, is both intelligently reflective of the internal state of the audience, and also psychologically fascinating.
Secondly, this story holds deep parallels with the current environmental plight of the Earth. In self-interest, energy, agriculture, and manufacturing companies are acidifying and warming the oceans with no regard for the undiscovered life now dying there en masse every day (together with the zooplankton the makes the Earth's oxygen -
http://www.newscientist.com/blogs/shortsharpscience/2010/07/phytoplankton-in-decline-bye-b.html -
http://news.yahoo.com/the-ocean-is-broken-133327474.html) . Scientific merit or "tourism potential" take little consideration against the raw lust for exploitable resources, which I believe is a salient societal commentary.
http://www.amazon.com/Private-Empire-ExxonMobil-American-Power/dp/B00CVE2NQ2Would that I could, as a scientist and environmentalist, give my life to send the psychotic greed-driven terraformers away from OUR planet. At least I have the cheap wish-fulfillment of audiocast fantasy to carry with me in the hard days to come...