What is red tide?

What is red tide?

Red tide is the expression used to refer to the phenomenon caused when algal blooms become so numerous that they paint the seawater red. The issue here is that the great amount of the algae depletes the water of oxygen and it also releases a toxin that causes illness in humans and species in the water, birds, and other mammals.

There are several factors that create the perfect environment for algal blooms to multiply. These can be warm ocean water temperatures, low salinity, calm seas, and rain. Besides this, the algae that cause red tide can be transported by the wind over great distances.

The most common forms of alga that causes red tide include:

  • Alexandrium fundyense 
  • Alexandrium catenella 
  • Karenia brevis 

Red tides are common everywhere and occur in both salty and fresh water.  Humanity has been able to cope with them.  However, since the 1980s the occurrence of such events has increased. 

Red tide algae produce a toxin that is released into the water.  The reason why these toxins are released is still unknown.  Organisms such as krill and fish are not affected by the toxin, so they will graze on the algae.  Nevertheless, the organisms that feed on these ones become poisoned due to the accumulation of the toxin on the prey´s body.

Today, red tides affect a great number of countries, causing sea life to be reduced. The National Ocean Service has been studying ways in which the occurrence of a red tide can be forecasted. The idea is for affected nations to have the opportunity to prepare.

Satellites have allowed scientists to better track and monitor the harmful algae. Along with this, an antidote is in development. 

More From The Latest

Times got rough for the Warriors, but it was then that they turned to Iguodala to set scores straight. Andre Iguodala was thought to very easily become M.V.P. of the NBA finals one more time, which he actually did. It was a tough competition against his teammate Stephen Curry. Becoming the MVP…
Kobe Bryant played for 20 years, his entire career, for the Los Angeles Lakers. He is named the youngest player in NBA history to achieve 30,000 career points. In one game alone, he scored more than 60 points and in another he scored more than 80 points. He is also recognized as the all-time leading…
LeBron James is one of the greatest basketball players of all time. He is 31 years old and still playing as passionately as ever in his professional career. He has a legion of fans and there are some who are jealous of his skills and success. There are multiple rumours about the future of his…
For basketball fans, the last season was one full of surprises. Not only some of the best players retired or were transferred to other teams, but also some were ejected during a game. This was the case for J.R. Smith, a player of the Cleveland Cavaliers. J.R Smith has a reputation of being impulsive…

News Gallery

From Our Desk

In one of the saddest and most recent death in the world of athletics, star forward for Oklahoma State Tyrek Coger died after an extensive workout in a very hot gym. Oklahoma State basketball coach Brad Underwood gave an extremely emotional statement about the incident, saying “This is the…
After 24 years without winning a lacrosse championship, the North Carolina Tar Heels won over the Maryland Terrapins with a 14-13 score in overtime. The game was led by Sophomore Chris Cloutier on the N. Carolina side as he scored five goals, including the winning fourteenth one. Luke Goldstock made…
The world of gymnastics is more exciting than ever before. You would agree if you had watched this year’s NCAA championship. Many talented college athletes competed in front of record crowds. Gymnastics is still one of the favorite sports of the world. Oklahoma was one of the favorite teams…
The new playoffs format for the NCAA Football Championships has added a whole new level of excitement to the sport. 2016 saw Clemson beat Oklahoma and Alabama beat Michigan State in the Semifinals, with Alabama beating Clemson 45 to 40 for the National Championship at the University of Phoenix…
Here is a brief but triumphant outline of the Stanford Cardinals, representing Stanford University. Oct 2015: The Stanford Cardinals beat UCLA in a dominating 56-35 win at Stanford Stadium. The sophomore of Castle Rock, Christian McCaffrey, had a record night in the win by running for 369 yards and…