The heat is on: a look at the ability of cold-water fish to tolerate climate warming

steamyriver

Whether you are sitting lakeside or beach-side on a sweltering summer’s day, there is no doubt that you will start to feel a little sluggish as the temperature creeps upwards of 30°C. As the sun sits high overhead, you may even begin to nod off, only to wake minutes later searching clumsily for your (once) cold drink and a bit of shade. You head inside, put some ice in your drink and bask in the beauty of AC until your next venture outside – after all, we only get a few weeks of this in Canada. You reached what’s known as your upper thermal limit, and luckily you are able to seek refuge and cool off with a cold-one. All