Spearfishing around thermoclines is so interesting….
While freediving you notice a thermocline without a doubt. Comfortably going down, but then suddenly UFF. A cold smack in the face.
A thermocline is an abrupt change in the temperature of water within a small depth. As warm water has a lower density than cold water, it creates a thin layer. That layer is called the thermocline, which separates the hot and cold water.
Most of the times in our areas the color of the water is different as well. Blue is warmer water. Green is colder water.
In general, fishes can´t cope with sudden temperature changes so they can´t really move between layers.
When spearfishing around thermoclines, it feels like you are hunting in the twilight zone…. Soooo interesting. Above you in the warm water there is different fish than underneath you in the cold water. And as a bonus, some fishes that like to hunt around the thermoclines.
This picture I took a couple of days ago. Some Horse Eye Jacks that prefer the warm water. Underneath them the greener colder water.
Enjoy the thermoclines!
Thermocline Spear Fishing was last modified: October 11th, 2013 by Leo | Founder & Guide
Leo is the founder of Spearfishing Today and also the official representative of the Mexican Spearfishing Association for the state of Quintana Roo, Mexico. He is FII certified, speaks English and Spanish and hunts comfortable up to 100ft. Leo is guiding spearfishing trips only on request in all Spearfishing Today locations in Mexico. He only hunts with a polespear and has a very inspiring opinion about freediving and spearfishing. Nickname: Chanoc. Most memorable catch: 27.99 kilo Cubera Snapper with polespear.
Get special promotions, coupon codes and spearfishing tips from the pro's and be the first to hear about our new video releases! No spam, we promise. Emails are only sent once a month, so your inbox will not be filled up. So sign up today!