• Photo by Rantje Allen

  • Photo by William Tan

  • Photo by Rantje Allen

  • Photo by William Tan

  • Photo by Rantje Allen

Loading content - please wait...

Tag Archives: Diving Gorontalo

Green turtle pays a visit to Gorontalo reefs

Green turtle is a species only occasionally seen along Gorontalo’s dense coral reefs. Adult green turtles are strictly vegetarian and so live near sea grass flats. Those seen at Gorontalo dive sites are migrating between sea grass areas in western Gorontalo to those in North Sulawesi Province. Divers will usually see Hawksbill turtles here.

Green Turtle Identification

green turtle on reef
The beautiful shell pattern of Green turtle

Both Green and Hawksbill turtles have similar appearances. However, certain features help identify both species. Green turtles have a single pair of large scales between their eyes. These are called prefrontal scales. Hawksbills have two pairs of small scales. Also, a hawksbill turtle has a distinctive hook on its beak, whereas a green turtle will have a rounded beak. Green turtles have smooth shells with smooth edges, whereas a hawksbill’s shell edges will be clearly serrated

, especially towards the tail. Lastly, an adult Green turtle has a single claw on each front flipper, whereas a Hawksbill turtle will have two. Oftentimes, the shell of a green turtle will be highly polished with visible patterning.

Worldwide

http://antolaphoto.com/adefovir/index.html

, Green turtles can grow up to a meter and a half in length. Also , they can weigh up to 400 kilograms. Those found in Indonesia are usually no longer than one meter.

Although baby green turtles eat a variety of things, adults shift to a plant diet. That means they eat mainly sea grass and marine algae. The common name green turtle comes from the fact that the fat found under this turtle’s shell is distinctively green in color. Scientists suspect the color is a result of the vegetarian diet. Also, this turtle’s scientific name is Chelonia mydas.

Moreover, should a diver notice the tail of a Green turtle, that turtle will be male. Only a male’s tail is long enough to protrude from under its shell.  

Breathing in Sea Turtles

Divers know that sea turtles spend most of their lives underwater. However, they must breathe oxygen from the air. While traveling to dive sites in Gorontalo

perfect money

, guests might notice when a turtle’s head breaks the surface. One breath is enough to exhale stale air and replace it with fresh air. A green turtle will dive for about four to five minutes. Then it will surface for a couple of seconds to catch a breath. Divers should never interfere with sea turtles while trying to breathe. Sea turtles will sleep in a safe place. During sleep, respiration slows considerably.

Nesting Sea Turtles

turtle on the reef
Pausing on a Gorontalo reef

A female sea turtle will reach forty to sixty years in age before laying her first eggs. Breeding females will lay eggs every two years. They will lay these every two to three weeks. They lay 50 to 150 eggs each time.

The temperature of the sand determines the sex of the hatchlings. Research on green turtles find that higher temperatures produce males

generic levitra

Ivermectin (Stromectol) kaufen Ohne Rezept Online In Schweiz

, whereas lower temperatures produce females. Scientists worry that rising ocean temperatures from climate change will result in too few female green turtles.

A female sea turtle will crawl onto a sandy beach at night. Then she will dig a hole to lay eggs and recover them. Scientists believe they return to the beach of their birth to lay eggs.

Baby turtles will hatch about two months of incubation. They will usually hatch about the same time. Then they crawl as quickly as possible to the sea. Many predators from birds to large fish eat baby sea turtles. The chances of surviving to adulthood are very small. Humans still collect eggs and hunt sea turtles. This is illegal in Indonesia.

Although land turtles can pull head and flippers inside the shell

, sea turtles cannot.

For your chance to see a green turtle in Gorontalo, please make your dive reservations directly with Miguel’s Diving.  

Mappa Puffer Video

Mappa puffer are usually solitary and wary of divers. One day, however, guests of Miguel’s Diving found one that was too busy eating to care that divers approached for a rare

Kup Lasix bez recepty

, up-close encounter.

One Pufferfish, Many Names

photo of Mappa puffer
Mappa puffer in Gorontalo

Miguel’s Diving staff call this fish Mappa puffer because its scientific name is Arothron mappa. Other English names include Map puffer, Arothron puffer, Scribbled Arothron puffer and Scribbled puffer. Additionally, this fish can be called pufferfish or simply puffer. Sometimes, pufferfish are called toadfish. As a result, this introduces additional name variations.

Mappa puffer live in tropical and subtropical oceans. Their distribution ranges from the Indian to western Pacific oceans. The key to distinguishing this species from other pufferfishes are the lines that radiate from its eyes. It can grow up to 65 cm in length. Also

, pufferfishes like this species lack scales. Divers will see them during the day.

Mappa Puffer Video

This type of pufferfish eats about anything that does not move. It cannot swim fast because of its small fins. Hence, its diet mainly consists of sponges, algae, clams and even coral. However, the Mappa puffer recently encountered in Gorontalo repeated selected something surprising to crunch. Watch the video to see!

This feeding behavior raises questions. Why is it eating dead coral? How can such a soft fish crunch hard coral to bits? The answer perhaps lies inside the mouth of Mappa puffer. It has four strong teeth that keep growing. As a result, this type of pufferfish must crunch on hard things to wear down its teeth.

Eaten at Your Own Risk

As with other pufferfishes, the Mappa puffer can ingest large amounts of water when threatened. In this way, it can swell to twice its usual size. This is how it avoids being eaten. However, pufferfishes like this species are poisonous. Their livers, ovaries and skin contain tetrodotoxin. That poison is an extremely toxic sodium channel blocker. That blocker affects both the central and peripheral nervous systems. Most importantly, it causes paralysis.

The Japanese consider pufferfish meat a delicacy. They call it fugu. Only specially licensed chiefs have permission to prepare the meat. The chief must carefully remove Internal organs and skin prior to consumption. A low dose of tetrodotoxin causes tingling and numbness in the mouth, fingers and toes. Symptoms of a higher dose include nausea, vomiting, difficulty in walking, and paralysis. Most importantly, that paralysis can negatively affect the lungs, leading to respiratory failure. Only one to four milligrams is needed to kill an adult!

Tetrodotoxin has no antidote. The treatment required for recovery is artificial breathing. Mild poisoning can resolve itself within a few hours. More severe cases can require several days. This treatment is considered successful since many people make a full recovery. Heart failure is rare. Most importantly, treatment must begin before paralysis reaches the lungs.

Like many poisons, this one has medical benefits in controlled doses. New studies indicate that it can relieve pain in cancer patients. As such, it could become an alternative for opiates.

Actually, pufferfishes like Arothron mappa are not poisonous themselves. Symbiotic bacteria living inside their tissues produce the poison.

To see but not eat a Mappa puffer in Gorontalo, please book your dive trip with us.

Marine Protected Areas in Tomini Bay

Viable marine protected areas are a crucial need worldwide. At Miguel’s Diving, our business model is based on ecological sustainability and community development.

Gorontalo Marine Protected Areas

During our early years of operation, Miguel’s Diving staff conducted a series of coral awareness campaigns. These took place in local schools, village halls and government buildings. We even used the front porch of a house! Gorontalo Province Fisheries Department, the Nature Lovers club at the local university and law enforcement took part. The basic message was “no coral, no fish, your choice.” The culmination of these educational efforts was the establishment of the Olele Village Marine Park in 2007. Miguel’s Diving pays a fee directly to the village for our guests to dive in designated sites. In this marine protected area, fishing is not allowed.

Daily Patrols

A dive guide removes two Crown-of-Thorns from a pristine coral reef in Gorontalo
A dive guide removes two Crown-of-Thorns from a pristine coral reef in Gorontalo
During regular diving season, Miguel’s Diving staff are in the water almost daily. Diving season is November to April. We take time during each dive to clean up a bit of trash or fishing line. Any Crown-of-Thorns starfish are taken immediately from the dive sites. In other marine protected areas in the world, Crown-of-Thorn outbreaks severely threaten the coral reef. Divers will immediately notice the dense and healthy hard corals of Gorontalo.

Vast Tomini Bay

Miguel’s Diving offers diving along the northern shore of Tomini Bay. Other operators provide diving in the Togian Islands. They are located in southern part of Tomini Bay. Tomini Bay is one of the largest in the world. It plunges over four kilometers in depth near Gorontalo dive sites. It takes eight hours by metal ferry boat to cross from Gorontalo to the Togian Islands.

Togian Islands Marine Protected Areas

There is no dynamite fishing in the areas where Miguel’s Diving operates. This is because of environmentally-friendly local fishing practices and community education efforts. Gorontalo Fisheries Department also patrols the coastline. No so fortunate are our neighbors to the south. Although the Togian Islands is one of Indonesia’s official marine protected areas

, enforcement is lacking. In fact, there is a petition on Change.Org to urge the Indonesian government to tackle dynamite fishing and over fishing in the Togian Islands. Would you add your name to this petition? We have!

Malaysia International Dive Expo with Miguel’s Diving

Miguel’s Diving Booth A83

The 9th Malaysia International Dive Expo will take place June 6 – 8, 2014. It is also called MIDE 2014. The location is Putra World Trade Centre or PWTC. The Exhibition has opens to the pubic daily at 10 a.m. It closes nightly at 7 p.m. The admission fee for adults is only RM3.00. Children below 17 years of age are free. For more information, please visit the official Malaysia International Dive Expo web site.

Malaysia International Dive Expo 2014

Gorontalo: Hidden Paradise at MIDE 2014
Gorontalo: Hidden Paradise at MIDE 2014
This will mark the third time Miguel’s Diving has participated in the annual Malaysia International Dive Expo. Our booth will be located at A83. This is a strategic corner booth. The fasica board name is Miguel’s Diving @ Grand Q. We want to thank Mr. Rocky Liyanto of Grand Q Hotel in Gorontalo for its generous help in this year’s exhibit. Look for the dramatic “Gorontalo: Hidden Paradise” layout. Our professional backdrops were designed by Ms. Galuh Riyadi of Jakarta. They feature underwater photo art by some guests of Miguel’s Diving. These photographers come from Malaysia

antibiotiquesenligne.com

, Indonesia and Singapore. Perhaps you will recognize a name – and perhaps a face! We have some special discounts for MIDE visitors. Please come by to chat and pick up a flyer. We would love to catch up with old friends and make many new ones.

Gorontalo for Malaysian Divers

Gorontalo is an excellent destination for Malaysian divers. Pristine dive destinations are often difficult to reach. Not so Gorontalo! Air Asia offers flights from KUL to Makassar (UPG) four times weekly. The connecting flight to Gorontalo lasts about one hour twenty minutes. Gorontalo diving season is the opposite of most peninsular Malaysian destinations. Our season runs mid October to mid May. Officially it is November to April. Now there is no reason to cry during monsoon-lah. Come dive in Gorontalo! For many Malaysians food can be an issue. Food in Gorontalo is halal.
Contact us here about our participation in the 2014 Malaysia International Dive Expo or to make a booking for your next dive in Sulawesi with Miguel’s Diving!

Black Manta Ray Sighting in Gorontalo

Not a fictional cartoon super villain, but a real Black Manta Ray caused quite a stir in Gorontalo.

A Curious Black Manta Ray Visits Divers

Divers were enjoying a day of brilliant visibility when the dive master turned around and pointed. Behind us came the distinct flying motion of a manta ray. But this was no ordinary one. It was a rare Black Manta Ray. Usually, mantas are dark on the top and white on the bottom. The underside also has various marking that are unique to the individual manta. However, a genetic morph known as the Black Manta Ray is black both on the top and the bottom. The one we saw was gliding off the wall at Traffic Circle dive site in the Olele Village Marine Park. It was quite curious about the divers. It came within a couple of meters of the enthralled humans. This Black Manta Ray circled and swayed for about fifteen minutes. The video does not last that long.

[svpVideo v=1]

Ridwan Monoarfa’s borrowed GoPro ran out of batteries! Diving in Gorontalo is notoriously draining on batteries. There is too much to shoot!

A Division of Species

Humans have known about mantas for millennia. However

2pharmaceuticals.com

, the actual species name has undergone much revision. In fact, only in the current millennium has genetic science confirmed two separate species. The official studies were done by Kashiwagi et al (2008), Marshal et al (2009) along with Ito and Kashiwagi (2010). Researchers analyzed difference among numerous mantas. This included color, spines, the mantas’ tooth-like scales and teeth. As a result, there are now two recognized species. One is Manta birostris. This manta is the largest and grows to up to seven meters wide. It lives in many oceans worldwide and migrates. The other is Manta alfredi.

Black Manta Ray seen gliding
A Black Manta Ray glides along a wall in Gorontalo
It is named after Prince Alfred of England. This manta is smaller and grows to only 5.5 meters wide. It lives in Indo-Pacific waters and tropical areas of the eastern Atlantic Ocean. The Black Manta seen in Gorontalo is most probably M. alfredi. The separation of species has been confirmed by consistent morphological and genetic differences. Ironically, authorities have long debated about the rare Black Manta Ray. However, genetic research confirms that it is a morph. Both manta species can occasionally produce the Black Manta.

Pelagic Rays of Gorontalo

To see a Black Manta Ray is quite rare. The most common large ray seen is Gorontalo is the White-spotted eagle ray. Occasionally, numerous Mobula rays glide by divers. For your chance to see a pelagic ray, please make a dive booking with us at info@miguelsdiving.com

Jumping Sailfish in Gorontalo

Jumping Sailfish seen in Gorontalo
Jumping Sailfish seen in Gorontalo
Imagine seeing a jumping sailfish on the trip to a dive site. That’s what happened to a group of dive buddies from Singapore and Taiwan. While traveling to Buffalo Head Point dive site

, Miguel’s Diving boat crew spotted a jumping sailfish. It jumped a total of three times. The crew carefully moved the boat closer and discovered three sailfish swimming together just under the surface. Their dark forms were clearly visible in the calm blue water.
 

A Jumping Sailfish Video

[svpVideo v=1]

After they passed within a few meters of the boat, dive staff encouraged the guests to make a video. The results of the combined effort are available to watch in a brief video. In the first segment, notice the dark shape in front of the dive boat. That is one of the jumping sailfish. Next a dive master jumps in the water with a camera and swims after the fish. In the original video, two distinct sailfish are visible, stripes and all. Then the camera emerges to the surface in time to catch the jumping sailfish. The final sequence was shot with a smart phone from the dive boat. Hear everyone scream and cheer for the jumping sailfish.

Marine Life in Gorontalo’s Deep Waters

Gorontalo dive sites are scattered along the continental wall of Sulawesi. Ocean depths near Buffalo Head Point dive site plunge to over four kilometers. That is where the jumping sailfish were. This same group of divers had close encounters with a spotted eagle ray, blacktip shark and schooling jacks. Just after everyone descended for a third dive, the boat crew watched a whale jump from the water and blow a spray of water into the air. Divers below heard the noise and wondered what was going on.

Indo-Pacific Sailfish

The trio of jumping sailfish are actually Indo-Pacific sailfish (Istiophorus platypterus), a type of marlin. They are native to the deep Indian and Pacific Oceans. The color is dark blue on the top, brownish to blue on the sides and with sliver belly. They also have a series of dark bars on their sides. These bars were clearly visible to the watching divers and the dive master in the water. The distinctive sail-like dorsal fin was not raised the day divers saw the jumping sailfish. However, the large pointed bill was clearly visible. These sailfish grow up to three and a half meters long. The world tackle record is over 100 kilos. Indo-Pacific sailfish are perhaps the fastest swimmers in the ocean. They have been clocked at speeds of over 100 kilometers an hour. A sailfish feeds by blasting through a school of fish and thrashing its head back and forth. In this way, it uses it bill as a weapon to kill or wound other fish. The sailfish then eats the fish as they sink in the water column.

For your chance for a rare pelagic encounter, please make a dive booking with us at info@miguelsdiving.com

Tips for Drift Diving in Gorontalo

Purple Anthias Digant Desai
Purple Anthias Digant Desai
Drift diving can be a delightful experience for scuba divers. Sometimes this type of diving is called current diving. Here are some tips from Miguel’s Diving.

General Drift Diving Tips

When diving in a current, the most important thing is to maintain neutral buoyancy and depth. You want to avoid contact with the coral reef while drift diving. Relax and ride the current. In other words, go with the flow!
To detect a change in current up ahead, look at the fish. Fish will always face into a current. Do you notice the school of Purple Anthias in Digant Desai’s photo? They are all facing into the current. In fact, the stronger the current the more fish will gather along the reef. They are waiting for passing food, such as plankton.
One of the keys for safe drift diving is good surface support. An experienced boat crew is essential. Miguel’s Diving has been operating safely since 2003. At certain sites where currents are expected, the dive boat will wait in blue water off the reef edge, so that spotting the divers is easy.

Accessories for Safe Drift Diving

Sometimes divers bring a dive sausage in areas of strong currents. The tube is inflated by using an alternate air source, like an octopus. The tube is attached to a line that the diver holds while drifting with the current. Since the tube is inflated with air, it bobs along the surface of the water and marks the position of the diver. This helps the surface crew keep track of divers. This is particularly useful in Komodo where currents are strong.
In certain areas in Indonesia, like Raja Ampat, divers bring dive hooks. This is basically a metal hook on a line and attached to your BCD. Divers descend into a strong current, hook into the coral and watch the fish go by.
Miguel’s Diving encourages divers not to use dive sausages or reef hooks here. They are not needed here. Instead, your dive guide will use a dive whistle attached to his inflator hose to signal the boat crew for picking up divers.

Currents in Gorontalo

Gorontalo has long shore currents that run to the right or to the left along the shore. It is not possible to be towed out to sea by a current in Gorontalo. Currents here are also quite gentle. That is why Gorontalo is suitable for newer divers

Kauf von Amoxil

, as well as serious underwater photographers. Currents here also tend to reverse every 20 to 30 minutes. We have named one dive site “Traffic Circle” because divers often can ride the lower current to several underwater points and then ride the upper current back to the mooring buoy where the dive boat waits.
When diving submerged points in Gorontalo, like at White Point or Buffalo Head Point, the current pushes divers around the point. This is the time to look into the deep water for the schools of fish that pass by. Once around the point, there is no longer a current. Now is a good time to enjoy the coral wall. Sometimes divers encounter reverse currents that are too strong to fin against. In that case, the dive guide will signal everyone to turn around and drift with the new current.
For more tips on diving in Gorontalo, check out our Advice page on our web site. To arrange your dive trip to Gorontalo, please make a booking with us at info@miguelsdiving.com

mgd-logo-block