Photo by Rantje Allen
Photo by William Tan
Photo by Rantje Allen
Photo by William Tan
Photo by Rantje Allen

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Tag Archives: Gorontalo Diving

Striped Barracuda Warily Eye Divers

Posted on December 5, 2024 by Miguel's Diving • 0 Comments

Striped Barracuda schools on Gorontalo’s shallow reef flats. Smaller and more cautious than its larger relatives, this species dazzles with its streamlined body.

How to Identify Striped Barracuda

In contrast to other barracuda species, the Striped Barracuda is smaller, reaching about 55 cm in length. Also, its body features two thin, dark horizontal stripes running along its silvery body. These stripes are its defining feature and help divers distinguish it from barracudas that look similar.

Sometimes, it is called the Obtuse Barracuda, which translates its Latin name of Sphyraena obtusata.

Other Barracudas found in Gorontalo

Occasionally, divers in Gorontalo will see a Great Barracuda (Sphyraena barracuda). As the largest barracuda species, it can grow over a meter in length. Often, it swims alone. Its imposing size and solitary nature make it easy to differentiate from the smaller, schooling Striped Barracuda.

Also found in Gorontalo is the Yellowtail Barracuda (Sphyraena flavicauda). As its name suggests, its yellowish tail is the most prominent feature. Its body has faint spots instead of the distinct stripes seen on the Striped Barracuda.

The Black Barracuda (Sphyraena qenie) is slightly larger than the Striped Barracuda and is known for its dark fins and body markings. While the Striped Barracuda has clean, horizontal stripes, the Black Barracuda’s markings can appear as a combination of dark smudges and irregular lines, giving it a more shadowy appearance. These features, along with its tendency to inhabit deeper waters, help divers tell the two species apart.

Habitat and Behavior

striped barracuda school — *Sphyraena obtusata* school in Gorontalo

This barracuda species is found in warm, shallow waters throughout the Indo-Pacific region. They prefer areas with coral reefs, mangroves, and seagrass beds, where food is abundant.

During the day, they form schools for protection, creating a shimmering spectacle as light reflects off their bodies. At night, they disperse to hunt small prey like fish and crustaceans.

Tips for your Encounter with Barracuda

The schooling behavior of the Striped Barracuda is a visual treat for divers. Seeing these sleek fish glide in unison over Gorontalo’s colorful reefs is unforgettable.

barracuda wary of divers — Barracudas are wary of divers

However, their cautious nature makes observing them tricky. We suggest divers move slowly, so as not to startle them. Also, try to approach from different angles. The barracuda school will maintain distance from divers if it feels threatened.

An encounter with a school of Striped Barracuda offers divers an opportunity to appreciate the beauty and diversity of the underwater world. So, plan your dive with Miguel’s Diving to explore Gorontalo’s vibrant marine life up close.

Kayak.com features Miguel’s Diving

Posted on October 3, 2024 by Miguel's Diving • 0 Comments

Kayak.com is a strategic player in the online travel market, processing billions of searches annually. Now, it’s information page on Gorontalo activities features Miguel’s Diving.

Gorontalo Travel Guide on Kayak.com

The booking platform Kayak.com is adding destination travel guides for its locations. Recently, they contacted Miguel’s Diving, asking for a photo and basic information helpful for dive travelers. We were happy to accommodate their request.

On their travel guide for Gorontalo, they provide information like population, weather, and hotel options. Now, that guide includes a photo of our dive boats moored along a deserted beach not far from our dive center.

The Kayak travel group began in 2004 with only fourteen staff. Now there are over one thousand, operating seven international brands. Searches for flights, ground transportation, and travel packages are currently available in more than twenty languages. Additionally, in 2013 they acquired Booking Holding, a major travel player in online travel.

Flights to Gorontalo

We have added a link to Kayak.com to the Flights & Travel page on our website. Oftentimes, Indonesian domestic airlines do not accept foreign credit cards for flight bookings. Fortunately, the Kayak website will.

The ease of payment with credit card is only one advantage for flight bookings. For mysterious reasons, domestic carriers in Indonesia supply only limited options on their own websites. One example is the Lion Air website. Travelers wishing to fly from Denpasar, Bali (DPS) to Gorontalo (GTO) are not given complete options. The best flights are via Makassar (UPG). However, flights with that transit option do not appear on the Lion Air website! They are available with Kayak.com.

Gorontalo’s Airport

Our modern airport is located in the central valley of Gorontalo. Because this valley is ringed with mountains, the air approach usually circles over our dive center, above Gorontalo City, and onwards to Limboto Lake. The drive from the airport takes less than one hour.

For flights to Gorontalo, Kayak.com is a great option. For diving, make your dive reservations directly with Miguel’s Diving.

Funnelweed pass unnoticed

Posted on May 1, 2024 by Miguel's Diving • 0 Comments

Funnelweed, though found worldwide, lives in limited locations in Gorontalo. Divers certainly pass by without noticing. But scientists are researching it.

Delicate scalloped algae

Although funnelweed is a member of the brown algae family, its color here in Gorontalo is not brown. It grows in some sandy patches or substrate among other algae. Its color is pale cream. Sometimes, it has tinges of light green.

It grows in beautiful, radiating ribbons. Opaque bands alternate with more transparent ones. Often, this algae forms scallops that curve inwards. On the outer edges and surface sprout almost transparent filaments.

Divers, who take the time to notice funnelweed, quickly appreciate its unique beauty. However, they should not brush against it with unprotected skin. Something about these algae here leaves itchy stings.

Funnelweed around the World

In Gorontalo, this beautiful plant only grows in a few small areas. A few sandy patches are full of these algae. In a couple of other sites, it grows among other algae.

However, it is found worldwide. This includes the Caribbean and Atlantic oceans, as well as the Indian and Pacific ones. The detailed list of locations is quite long. The scientific name for funnelweed is Padina gymnospora. Since it lives in so many oceans, scientist the world over are researching its potential value.

Scientific Research on Padina gymnospora

One group has extracted sulfated polysaccharides from it. Their research indicates anti-inflammatory properties. They used mice in their studies prior to potential use on humans.

Other researchers discovered anti-amyloidogenic agents in funnelweed. This extract in an important component in drugs that combat Alzheimer’s disease.

Field research on Padina gymnospora has found significant absorbent properties in the algae. A synthesized compound from it is over 80% effective in absorbing industrial dyes. Removing these dyes from industrial waste is a priority to build a cleaner world. Using this extract is clean and green solution in reusing industrial wastewater.

Padina gymnospora produces an aragonite calcium carbonate compound as well as phlorotannins. These are found on the algae surfaces. These compounds play an important role in defending the algae from worms and snails.

That chemical protection has no effect on Green turtles, which are herbivores. Padina gymnospora is actually edible. Naturally, it contains no heavy metals or toxins. Although no one really uses funnelweed for human food, it has potential for as a natural fertilizer.

In Gorontalo, only staff of Miguel’s Diving will know where to find these beautiful algae. To see for yourself, please make your dive reservations directly with us.

Duncanopsammia peltata forms pagodas in Gorontalo

Posted on February 6, 2024 by Miguel's Diving • 0 Comments

Duncanopsammia peltata or pagoda coral form immense colonies in Gorontalo’s healthy waters.

Stunning Pagoda Coral Colonies

One of Gorontalo’s ancient and stunning coral formations is pagoda coral. Giant plates form spirals, hence the common name denoting pagodas. The colonies featured in this video measure over four meters across. The video is courtesy of @jhonheriano of Pertamina Dive Club.

Other colonies of this distinctive coral form single plates. Additional plates may take several centuries to form. In other coral reefs of the Indo-Pacific region, this coral forms pillars. That morphology has yet to appear in Gorontalo.

Descriptions of Duncanopsammia peltata

The scientific name for pagoda coral is Duncanopsammia peltata. When we consulted coral experts, they asked for a detailed photograph of the polyps. These are distinctive in determining the species. Usually, corallites measure between three and five millimeters in diameters. However, those of the giant colony featured here measure almost one centimeter!

As with other corals, polyps are only found on the upper surfaces of the colony. They need sunlight and easy access to plankton brought by passing ocean currents. Sometimes, the corallites are embedded flush with the coral plate. However, other times they protrude above the plate like little bumps. Typically, the polyps are extended during daylight hours, ready to sunbathe and catch plankton. Their many arms can measure up to one centimeter in length.

Tiny single-cell organisms called zooxanthellae live inside Duncanopsammia peltata. They turn sunlight into food that they share with their host coral.

Colonies of Duncanopsammia peltata live in coral reefs throughout the Indo-Pacific region. They thrive just below the surface, down to a depth of about forty meters. The color is grey to light brown.

Ask us to show you Gorontalo’s pagoda corals when you make your dive reservations directly with Miguel’s Diving.

Dendrodoris tuberculosa inhabits Gorontalo reefs

Posted on January 12, 2024 by Miguel's Diving • 0 Comments

Dendrodoris tuberculosa rarely appears on Gorontalo’s coral rich dive sites, despite its very large size. After years of absence, in late 2023 divers saw three in the same week!

The Frilly Dendrodoris tuberculosa

Sometimes called the Tuberculate Dendrodoris nudibranch, it can grow to twenty centimeters in length. Colors range from brown to green to pink. Most distinctive about this giant nudibranch are its numerous tubercules. These almost entirely cover its upper body. Among the masses of tubercules, two rhinophores emerge. Perhaps because of its large size, it crawls quite fast. Despite its size, divers can easily miss seeing it.

Three in One Week

The first of three we spotted recently looked like a scrap of old carpet flowing over the substrate. It easily blended in and quickly disappeared under some coral. This sighting was at a depth of two meters. Its length was twenty centimeters.

The second Dendrodoris tuberculosa sighted was at twelve meters. It was crawling on top of plate coral that projected from one of Gorontalo’s spectacular walls. Its pinkish color contrasted nicely with the coral. Much smaller than the first, it measured about twelve centimeters in length. After crawling across the coral, it turned upside down and disappeared underneath the coral.

The third Tuberculate Dendrodoris had beautiful bluish tips on its tubercules. It was still on the small side, measuring about ten centimeters.

Discovery during Around-the-World Expedition

This enormous nudibranch was first discovered during a scientific voyage around the world. Commissioned by the French king, the voyage departed the port city of Toulon on 22 April 1826. The name of the ship was Astrolabe, after an instrument used in marine navigation. Scientists on board collected samples of animals and plants from the coasts of Chile and Peru, Australia, New Zealand, New Guinea, and various Pacific islands. They also surveyed the Molucca islands of Indonesia.

Two French naturalists Quoy and Gaimard named one discovery Doris tuberculosa. The genus name later changed to Dendrodoris.

The expedition returned to France in March 1825.

For your chance to enjoy a dive expedition in Gorontalo, please make your dive reservations directly with Miguel’s Diving.

Sargassum frogfish delights divers

Posted on November 23, 2023 by Miguel's Diving • 0 Comments

Sargassum frogfish float on surface currents to dive sites in Gorontalo. Our diligent diver masters know how to find them, to the delight of guests.

Floating Refuge

As their common name implies, Sargassum frogfish hide among sargassum weeds. Although these weeds initially grow along shallow ocean bottoms, storms will rip them up. Then, these weeds will float on the surface. They have air-filled bladders that look like berries, which helps the weeds float.

Over eighty species of fish use floating mats of Sargassum weed for part of their life cycle. Juvenile fish can hide there from predators. But predators also lurk unseen among the weeds.

Camouflaged Predator

One such predator is the Sargassum frogfish. Like other frogfish

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, this one has a small lure between its eyes and mouth. When the fish is hungry, it will wiggle its lure to tempt prey to approach too closely. With a sudden, giant gulp, the frogfish will ingest the small fish, crab or shrimp. Unhappily, baby frogfish may also be devoured.

This frogfish’s scientific name is Histrio histrio. It is the only species of this genus and no other fish looks quite like it. Its appearance is unmistakable, although finding it is difficult. Its coloration mimics that of Sargassum weed. Also, it has fleshy appendages that look like its weedy host. Although it can swim, this frogfish usually remains motionless. Instead, it grabs onto weeds with its pectoral fins and tail. When necessary, it can alter its color from lighter to darker, or vice versa.

Techniques for Finding Sargassum frogfish

Our dive masters are skilled in finding these shy and delightful critters. During surface intervals between dives, they will search floating weeds near the dive boat. If they find one, they will scoop it into a small bucket along with the weed on which the frogfish clings. That way guests on the dive boat can see it up close. Although this frogfish can survive quite a while above water, we always return it safely to the ocean.

For your chance to see a Sargassum frogfish Gorontalo, please make your dive reservations directly with Miguel’s Diving.

Flower urchin trembles with danger

Posted on September 13, 2023 by Miguel's Diving • 0 Comments

Flower urchin looks like a lovely ball of trembling flowers. However, those flowers contain highly toxic venom. This sea urchin’s maximum diameter is about 15 centimeters. It lives in areas of sand and rubble along coral reefs. It also inhabits areas of sea grass.

Beauty to Avoid

Although commonly known as the Flower urchin, the scientific name of this echinoderm is Toxopneustes pileolus. The genus name Toxopneustes means “poison breath.” And “skullcap” is the meaning of pileolus , the species name. These names underscore the creature’s deadly possibilities.

Its toxins can cause a number of symptoms. These include breathing problems, muscular paralysis, and numbness. Such effects can render the victim disoriented. The combination can result in accidental drowning. Initial contact gives the victim an extremely painful shock. Then numbness and spasms start to travel through the body from the point of contact. Happily, accidental contact with this sea urchin is extremely rare.

Deceptive Flowers

Various projections cover a Flower urchin’s exposed surface. The most noticeable are the flower-like pedicellariae. These colorful appendages are actually jaws. Each jaw has three prongs. Moreover, the flower-like jaws have sensors that detect contact or proximity movement to the sea urchin. Any touch will trigger the jaws to contract. Then the jaws inject venom. To make matters worse, once the jaws are triggered, they can easily break free from the sea urchin. That means they stay embedded and will continually inject venom for several hours.

The flowers of this sea urchin can appear a pinkish or yellowish white. There will be a single lavender dot in the middle. These false flowers typically cover the short spines of the urchin.

On the underside of the Flower urchin are double rows of tubular feet. These emerge along the ten segments of the urchin’s shell. In the center is the creature’s mouth, which contains five plates. These plates function as teeth that crunch food. Sea urchins forage along the bottom on algae, bryozoans and detritus. With the mouth facing the substrate, the anus faces the water column and any curious passing diver.

Flower Urchin Piled with Debris

To observe a Flower urchin, divers must keep a safe distance. Careful observation of the surface of this creature shows thin, translucent, and waving appendages that are longer that the trembling flowers of the urchin. These appendages are tubular feet that end in three claws. These are used to clear the urchin’s surface of debris.

However, the urchin also uses these tubular feet to move debris from the substrate onto its top and sides. Scientists call this covering or heaping behavior. The tubular feet keep debris in place. The function or purpose of this behavior remains a mystery. Because divers think that a small heap of debris is simply rubble, most flower urchins remain unnoticed.

In the rare instances when we see a Flower urchin, our dive masters will warn guests first and then carefully show the beautiful creature. Afterwards, the dive master will use his stick to move debris on top of the urchin. This helps the urchin but also prevents accidental contact by anyone else passing by.

To dive with such caring dive masters, please make your trip reservations directly with Miguel’s Diving.

Fin whale startles crew

Posted on July 4, 2023 by Miguel's Diving • 0 Comments

Fin whale surfaced right next to one of our staff while he was fishing for yellowfin tuna. Tomini Bay where we dive is over four kilometers deep. So, large cetaceans are part of the marine environment in Gorontalo.

Surprise Encounter

Boka, one of Miguel’s Diving dive masters, headed to deep waters offshore. On his day off, he decided to fish for yellowfin tuna. Local fishermen use traditional handlines. This method is ecologically sustainable.

Suddenly, a large whale surfaced only a few meters away from his outrigger canoe. Then the whale exhaled, sending spray into the air.

Boka’s outrigger canoe measures five meters in length. He estimates the fin whale that surfaced next to him to be twelve meters. That means this particular whale was still small. Adult fin whales can reach 22 meters in length. This species is the second largest animal on planet earth, after the larger Blue whale. The cetaceans we see tend to be young. That includes whale sharks, orcas, and whales. It seems that the deep waters of Tomini Bay are a prime location for young cetaceans to grow into adults.

Fin Whale in the Southern Hemisphere

Although fin whales live in all the world’s oceans

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, they are mostly sighted in the southern hemisphere. When a fin whale surfaces, its dorsal fin appears right after the whale blows. The dorsal fin is quite small and points backwards. Its flukes are rarely visible. Most notable, it is large size. Also, fin whales ignore boats. This is what happened when Boka encountered one.

The fin whale used to be hunted commercially. This is now banned. As a result of over hunting, this species is considered endangered. The population of the southern hemisphere has been particularly slow to recover. Balaenoptera physalus is the scientific name.

Fin whales are filter feeders. Those in the southern hemisphere feed almost exclusively on krill. They can also eat plankton, small schooling fish, and squids. Their only known predator is the Orca or killer whale. In Gorontalo we see orca annually, usually in January and February.

Although scuba divers are not likely to see a fin whale in Gorontalo, whale shark sightings are common. So, please make your dive reservations directly with Miguel’s Diving.

DXI2023 marks Miguel’s Diving return

Posted on June 28, 2023 by Miguel's Diving • 0 Comments

DXI2023 or DEEP EXTREME 2023 marks Miguel’s Diving return to Indonesia’s prestigious diving expo. Other adventure sports are also represented there.

Joint Promotion with Tourism Department

Gorontalo Provincial Tourism Department invited Miguel’s Diving to join its booth. We are most grateful for their support. The booth location was D10. Two of Miguel’s Diving staff attended DXI2023. They were Yunis Amu and Maman Abdullah. Other dive staff remained in Gorontalo to take guests diving.

As in many previous years, DEEP EXTREME Indonesia 2023 held its exhibition at the Jakarta Convention Center. The dates were June 1 to 4. The expo combines scuba diving with extreme sports, such as rock climbing. It is now the largest expo of its kind in Southeast Asia. At DXI2023, Miguel’s Diving offered a discount dive packages exclusively to visitors to our booth.

our dive boats — Our custom-built dive boats

We also promoted our custom-built speed boats. The larger one holds a maximum of fourteen divers. It comes complete with a marine toilet. The smaller speed boat can hold eight divers, but we prefer to limit the capacity to six guests plus dive masters. Both boats provide canopies for complete coverage from the sun. We built both specifically for divers rather than renovate boats built for fishing. No one else offering diving in our area has the facilities that we have.

Friends Old & New

The Gorontalo booth for DXI2023 contained a variety of underwater photographs from Gorontalo. Gorontalo is a great place for underwater photos, whether wide angle or macro.

After taking a pause from diving since 2020, many divers wish to return to Gorontalo for our great diving. The Jakarta dive show was a wonderful opportunity to reconnect with longtime friends and to make new ones.

One visitor to our booth was our representative to parliament, Mr. Fadel Muhammad. He is Wakil Ketua MPR for the current period. He will be up for re-election in 2024.

If you could not meet us in person, please book your dive trip with us.

Reticulated puffers delight divers in Gorontalo

Posted on May 25, 2021 by Miguel's Diving • 0 Comments

Reticulated puffer is a clumsy, clownish swimmer that delights divers who chance to see it. This puffer lives throughout the Indo-Pacific tropics

A Distinctive Network of Lines

The scientific name for this fish is Arothron reticularis, which is a fitting name. Reticulated means arranged like a net or marked like a network. Only the Reticulated puffer has the network of white lines around its face and belly. It sports white spots on its body. But so too does Arothron hispidus , another puffer species that lacks the network of lines. The body color for Arothron reticularis range from brown to grey.

Puffer fish have quite distinctive bodies. This includes tough skin and a dental plate in their beak-like mouth. What they lack is more notable. They lack fin spines and ribs. As a result, they can inflate their stomachs with water when afraid. Moreover, their skin, gonads, and liver contain two toxins. These are tetrodotoxin and saxitoxin. Some species are more toxic than others. Because different puffer species have similar body shapes, identification is most accurate when using color patterns.

So, the reticulated pattern makes the Reticulated puffer easy to identify.

Facing a Reticulated Puffer

Typically, puffer fishes are occasional in the marine environment. However, Miguel’s Diving staff know of one dive site in Gorontalo where Reticulated puffers are likely to be seen. Moreover, this species of puffer fish also exhibits the ability to recognize humans. Certain puffers at that dive site swim right to our dive masters.

reticulated puffer smiles — A Reticulated puffer smiles for the camera

The face of a Reticulated puffer makes a delightful photo. Besides showing the distinctive reticulated pattern, the eyes are especially beautiful. Encircled with white rings, the eyes have brown irises and dark pupils. The eyes have great range of motion. This puffer fish smiles for the camera with its four teeth plates. These continually grow. The fish will keep them worn down by eating shrimps and crustaceans. On the snout and between the eyes are twin, forked tuffs. These are actually olfactory organs that allow the fish to smell its watery environment.

Divers will notice that the body of this fish is often sprinkled with sand. During the day, puffer fish often hide in sandy bottoms. They use their pectoral fins to throw sand onto their backs. Their maximum length is 45 centimeters.

Proper Behavior for Divers

Divers should never catch or grab puffer fish to make them inflate. This action frightens the fish

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, causing stress. Like many puffer species, the Reticulated puffer is covered with defensive spines. These short prickles are only visible when the fish is puffed up in a defensive posture.

Although our Reticulated puffers know some of our dive staff, they do not like to be pursued with cameras. Instead, for guests who want a souvenir photo of this cute fish, we recommend approaching patiently. If the fish starts to swim away, leave it alone. Given time, it will return. A photographer’s random behavior that ignores direct pursuit of the fish will calm it down, allowing a closer approach for a photograph.

For your chance to see this delightful puffer fish in Gorontalo, please make your dive reservations directly with Miguel’s Diving.