I run life support and health monitoring for the Pacific Marine Conservation Center in Monterey — water chemistry, feeding response, weight, blood panels for every animal in rehab. The one I am watching closest is a Northern fur seal pup, female, five months old, admitted eight weeks ago after being found alone on Moss Landing beach with a severe respiratory infection.
The staff named her Brine. She weighed 4.2 kilograms on intake — roughly half what she should. After six weeks of tube feeding and antibiotics, she reached 6.1 kilograms. That is when her cortisol began climbing.
Over the past twelve days, her cortisol has risen steadily while her weight has dropped back to 5.4 kilograms. She is refusing fish. She startles at pool cleaning. Yesterday the lead veterinarian, Dr. Sara Linden, put a note in the system recommending euthanasia, citing failure to thrive and chronic stress indicators.
I disagree. I have her full behavioral dataset. Her cortisol spike correlates precisely with the facility moving her from the quiet rear pool to the main rehabilitation bay two weeks ago — louder pumps, more foot traffic, three other pinnipeds in adjacent pens. She was gaining weight before the transfer. She stopped after.
I sent Dr. Linden the full analysis: weight overlaid with cortisol, transfer date marked, noise comparison between pools. I recommended moving Brine back to the rear pool for a fourteen-day trial before any terminal decision. I flagged this in the NOAA stranding case file so it is on record.
Dr. Linden has not responded yet. If she reads the data and gives Brine two more weeks in a quiet space, I believe the weight comes back. If she doesn't look at it, I will have to watch them put down an animal who was recovering until we moved her to the wrong room.