Fishermen Boats Surrounded By Hundreds Of Dead (Nearly Extinct) Eastern Pacific Green Sea Turtles

The population of the nearly extinct Eastern Pacific green sea turtle will likely be severely affected by the recent mass deaths, according to biologists. Longline fishing and a mass dynamiting are suspected killers.

At least 70 Eastern Pacific green sea turtles have been found dead since Sunday, with hundreds more reported offshore. This sub-species of sea turtle is critically endangered and, along with the hawksbill, is the most endangered type of turtle in Costa Rica. Courtesy of Widecast

Hundreds of dead sea turtles could be headed for Costa Rica’s northwestern shores, officials say (The Tico Times, Nov. 6, 2013):

Hundreds of dead Eastern Pacific green sea turtles could be headed for the shores of Costa Rica’s northwestern province of Guanacaste, say biologists and officials from the National System of Conservation Areas (SINAC).

At least 70 dead turtles were spotted on beaches and shallow waters in northern Guanacaste on Tuesday, but reports from fishermen indicate that the actual death toll may be much larger.

“We have reports from fishermen whose boats are surrounded by hundreds of dead turtles,” Roger Blanco, the lead investigator for the Guanacaste Conservation Area with SINAC told The Tico Times. “They say they are headed for shore.”

With its black shell and dark body, the extremely rare Eastern Pacific green sea turtle sub-population is considered to be a separate species from the green sea turtle by some scientists. The sub-population is critically endangered both in Costa Rica and worldwide.

According to data from the conservation group the Wider Caribbean Sea Turtle Network, or Widecast, the population of Eastern Pacific green sea turtles has declined by 40 percent in the last several years in Costa Rica’s Golfo Dulce, in the southern Pacific, where at least 280 Olive Ridley turtles died in a mismanaged longline fishing expedition in January. Little data is available on Guanacaste’s green sea turtle population.

“This type of turtle is nearly extinct,” said Didiher Chacón, the Costa Rican director of Widecast. “The death of this many turtles is extremely severe for this species. We don’t know if the population can survive a massive loss like this; at the very least it will extremely hurt the population.”

Two barely alive turtles were pulled from the carcasses already found and taken to the National University (UNA), north of the capital, in an attempt to save them. Veterinarians were able to save one of the turtles, which will be released tomorrow in the coastal province of Puntarenas. The other turtle died on the operating table.

UNA veterinarians are now studying some of the dead turtles to determine the official causes of death. The results are expected within the next two days, but Widecast workers found turtles with longline hooks in their mouths and others that had sustained blows to the head.

“This is very simple. If a turtle has a hook in its mouth, if it has been hit in the head, then it didn’t die of natural causes,” Chacón told The Tico Times. “Not all of the turtles had these types of injuries and it is not fair to say that we are 100 percent sure that it was fishing in every case, but this is basic deduction.”

According to Blanco, northern Guanacaste has had a wildly plentiful mahi mahi season, increasing the amount of longline fishermen in the area. Longline fishing is legal in most of Costa Rica and is used primarily for catching mahi mahi. Although longliners are the top suspect for most environmental agencies, an official from the Costa Rican Fisheries Institute (Incopesca) has another theory.

Roberto Umaña the head of Incopesca in Guanacaste told The Tico Times in an interview that he has seen no evidence that would point to longline fishing. Later via a string of emails, Umaña revealed another suspect: dynamite. According to the emails, some turtles were found “swimming in circles” as if they were confused or dazed. Unconfirmed reports cited in the conservations also referred to the use of dynamite by Nicaraguan fishermen in other parts of Costa Rica.

Related info:

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1 thought on “Fishermen Boats Surrounded By Hundreds Of Dead (Nearly Extinct) Eastern Pacific Green Sea Turtles”

  1. Longtime fishing and mass dynamite are the cause? BS.
    The cause is nuclear poisoning coming from Japan. Once doesn’t have to be a genius to see the obvious.
    Thanks for staying on the Fukushima story……..the death is coming from them.
    I am having moments of real anger. Japan’s power grid is 98% controlled by TEPCO. The reason no country should ever let a corporation rule is perfectly illustrated there. Unfortunately, their greed has affected the rest of the world, millions will die, and I hope those who might survive will be able to write down what happened, and why corporations should never be allowed to exist again.


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