Blue Eco Blog

Splash! You are in Costa Rica's Blue Eco Blog. Echoing Eco for Oceans and Waters. Giving voice to dolphins and whales, their waves and their waters, and all denizens of the deep. News they think you should use. Dive in.

Dolphin Embassy in Costa Rica-How to Visit. Dolphin People #2

clock July 14, 2013 20:46 by author BlueEcoBlog

Dolphin Embassy of Osa Costa Rica. The biggest dolphin embassy in the world?
Cruising Underwater with Dolphins in the Big Blue 
Open Ocean Offshore where others throw giant nets
Swim with Dolphins instead of netting dolphins.
Be safe everyone.
Dolphin Ambassadors-Star Larkin, Vanessa Larkin and Shawn Larkin

 https://www.youtube.com/watch?v=qqYdciN1qUA

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True Costa Rican Wild Animal Stories by Shawn Larkin Strunz

clock October 10, 2012 15:43 by author BlueEcoBlog

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Are tourists keeping Costa Rican dolphins awake?

clock August 30, 2012 09:28 by author BlueEcoBlog

Are tourists keeping Costa Rican dolphins awake?

Dolphins need protected areas and times.

Recent research on Hawaiian spinner dolphins indicates that they need protected times and places. Surprise! One bay is visited by as many as sixty swimmers at a time who try to play with a small group of dolphins. Seems the dolphins rest in the early daylight hours, and that’s when many swimmer tourists head out. Less dolphins may come into the bay and the dolphins might leave earlier than usual when too many people show up. Spinners in Hawaii rest in small groups near shore in shallow sandy bays near deep water. Scientists say these places need protection. Clearly tourists should be told to leave the dolphins alone in the early daylight hours and fishing and extraction should be stopped in the bays. Costa Rican dolphins should have it so good.


Costa Rican spinner dolphins deal with giant nets towed by ships, helicopters dropping bombs, long lines full of hooks, shrimp trawlers bulldozing the bottom, surprise drill ships making a big mess, big banging seismic surveys, cargo ships blitzing by, sport fishers plowing through the pod with lines and hooks, tourist boats gawking, and even some divers in the water. How do you think that effects their beauty sleep?


Don't forget here in Costa Rica spinner dolphins have no protected place at all.


Costa Rican spinner and spotted dolphins, who also rest in the early daylight, need tourists to leave them alone at this time. Sport fishing boats need to stop fishing in the dolphins as they particularly like the early hours of the day. Many hotel managers want tours to leave early to get everyone out of the hotel, but this is the wrong strategy if you are concerned about dolphins. Tourist operators like divers and fishers should put up on their web pages that they leave the dolphins alone in the am. Guests of Costa Cetacea over the years will recall that all tours leave late and respect the dolphins rest time, much to the frustration of some hotel managers. The interactions here in Costa Rica are much more interesting in the PM anyway.


Aloha to the Hawaiians for once again being the world ocean leaders. Lets hope Costa Rica follows.

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Tuna Fishing Endangers Dolphins in Costa Rica

clock August 7, 2012 12:25 by author BlueEcoBlog

Dolphins are Costa Rica’s most famous divers – and they have a problem. For decades, in the eastern tropical Pacific, the commercial fishing industry has hunted dolphin species that form enormous congregations, such as pantropical spotted, spinner, bottlenose, common and Risso’s dolphins.

Tuna always school beneath large groups of dolphins, so corralling the dolphins with helicopters and speedboats causes the tuna to form a more easily netted mass below. Unlike most sport fishers who catch a few fish in a sustainable way, many commercial operations set vast nets around dolphins in hopes of grabbing all the tuna possible. This technique has killed millions of dolphins, and continues to kill them as recently as last month off the Southern Zone’s Osa Peninsula.

Dolphin and tuna are often about the same size, and eat the same size of prey. The vast groups of yellowfin tuna constantly following large dolphin groups are led to lunch. The tuna seem to instinctively follow the dolphins, as do birds and other fish, because dolphins will find the food. The big brains of these marine mammals figure to look for chow a few miles offshore of an island, when the tide is high, the moon is full, the wind is clam, the water temperature is just right and the coast is clear, and the needlefish are schooling. The tiny brain of the tuna might just think: follow the dolphin.

Dolphins, being so social and traveling in such large groups, actually create a sort of structure, like a reef, in which smaller fish can hide as well as collect scrapes. Many species of fish, besides tuna, cruise in groups with the dolphins, including silky sharks, blue marlin and sailfish.

We call this famous phenomenon the tuna-dolphin association of the eastern tropical Pacific, not because it’s just tuna and dolphins but because huge commercial fishing fleets use dolphins breathing at the surface to find the tuna swimming below them. Many different species die in the nets of commercial fishing fleets. You may have heard of “dolphin-safe tuna”; this catchy phrase is better described as “some dead dolphin and mixed-species tuna.” The aforementioned catching method, sometimes still used, is “major dead dolphin and mixed species tuna.” As far as I know, none of the forms of massive-scale tuna fishing is even remotely safe for dolphins – some ways just kill less than others do.So, how do the methods differ? One is called a “backdown.” After netting all the tuna and dolphins through the normal process, the ship motors slowly in reverse. This, with the help of a few speedboats, lowers a part of the net down below the surface. Hopefully, the freaked-out dolphins will then swim out. Sometimes they do. Sometimes boats chase them out. But if the tuna follow them, the net is quickly yanked up. All the while, daylight is fading, the crew and workers are on the clock, and fuel is being guzzled. This is “dolphin-safe” tuna. Other methods don’t even use a backdown.

Waiting to catch the tuna when they are away from dolphins requires more time, effort and money, but is the only way to ensure dolphins are safe from slaughter. Reportedly, some boats do not set on dolphins, but until tuna consumers make this distinction, the prices of unscrupulous competitors will hurt the real “dolphin-safe” businesses.

Dolphin tourism can sometimes be at odds with commercial fishing interests. It makes it a little harder to surround a group of dolphins with helicopters, speedboats and a factory ship when a happy group of photosnapping tourists is in the way. On rare occasions, frustrated pilots in rickety helicopters that look more like lawn mowers than aircraft will attempt to drive off the people by buzzing a tourist boat near dolphins. If you are rooting for the dolphins, you can stay with them until there is not enough daylight for the time-consuming process of chasing and netting.

Why don’t the dolphins just smack a few boat captains on the head as they jump over the nets and swim away giggling? Because, like humans, dolphins, once they start to panic, are not so smart. Ancient instincts, such as freaking out, take over. And, as with humans, being in large groups makes panic worse. Dolphins are used to vast spaces; a net causes panic, and they just don’t think to jump over.

I wonder how commercial fishers will fare once the big pods are gone. This may sound distressingly familiar if you know about the vast herds or flocks of animals, such as American bison and passenger pigeons, which have disappeared on land and in the air. As the buffalo once did, the dead dolphins rot in waste or fall to scavengers, and, as with the passenger pigeons, a point may arrive when the population crashes suddenly to extinction.

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Spinner Dolphin Experience. Swimming and seabobbing with thousands of dolphins in Costa Rica

clock May 13, 2012 15:12 by author BlueEcoBlog

Spinner dolphin experience with Costa Cetacea in the offshore open ocean of Osa Costa Rican blue water pelagic.  The best spinner dolphin footage yet known.  The best footage of people on seabobs with dolphins.  The spinner dolphins are sea masters and we are their sea servents.  Pelagic Park Please for Osa divers and yachts and local fishers!  Also check out the billfish swimming with dolphins.  Click right here to see it.  Once again Costa Cetacea are the ocean leaders, we will follow.

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