There are more than 3,000 known types of nudibranch, and new ones are being discovered every day. They are found all through the world's seas, yet are most abundant in shallow, tropical waters. Their scientific name, Nudibranchia, comes from the Latin nudus, naked, and the Greek βραγχια, brankhia, gills. They portray the feathery gills and horns that most wear on their backs. Generally oblong in shape, nudibranchs can be thick or flat, long or short, Luxuriously colored or camouflaged to bend to their surroundings. They can be as little as 0.25 inches (6 millimeters) or as huge as 12 inches (31 centimeters) in length.
All known nudibranchs are carnivorous. Some feed on sponges, others on hydroids, and some eat other sea slugs or their eggs or, on some occasions, are cannibals and prey on members of their own species. To distinguish prey, they have two very sensitive tentacles, called rhinophores, located on top of their heads. Nudibranchs get their coloring from the food they eat, which helps in blending in with their environment, and some even hold the foul-tasting toxins of their prey and emit them as a defense against predators.
Nudibranchs are simultaneous hermaphrodites, and can mate with any mature member of their species. Their lifespan differs greatly, with some living not as much as a month, and others up to a year.
Nudibranchs have both female and male reproductive organs, however they don't regularly self-fertilize. Having both sexual organs implies that there is always a chance for propagation if two grown-ups of the same species cross ways. This is keen, considering their solitary, wandering lifestyle. Egg masses are for the most part laid on whatever surface they are feeding on and are typically winding formed or snaked. The eggs form into planktonic (free swimming) hatchlings, which float on sea streams until they settle out as adults.
Nudibranchs are gastropod mollusks. They have a place with the same phylum that includes the whelks and numerous different shells that you find along the seashore. Nudibranchs have just developed an alternate kind of body for an altogether different lifestyle – one that doesn't oblige them to surround themselves with a protective shell.
Their body is delicate and meaty, they move around on a long muscular foot (very similar to land snails) and they have rhinophores on their head that researchers accept they use to touch and sense their immediate surroundings.
A few nudibranchs have a thick bunch of gills toward the back of their body that they use for respiration, while others have arm like structures (cerata) everywhere on their body that are utilized for both respiration and defense.
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Are you anticipating going on vacation because you are a bit uncertain about your dive skills?
If it has been a while since your last dive or have not been in the water since you completed your PADI course a year or so ago, you may need a refresher before hitting the waters.
If its not too much trouble get in touch with us to book your Refresher program.
Remember, if you are not sure about what your doing, or feel you that you are not a hundred percent confident about what you're doing, don't hesitate to ask - you'd be glad you did. Stay safe and have fun diving!
Article by Merideth Cally
Swimming could be the best workout for you for many reasons.
Its benefits can range from sheer pleasure to holistic fitness and well being.
And guess what? You can reap the most benefit out of it if you're willing to devote some time and effort.
If you doubt that getting into your swimsuit (and the water) can seriously help you reach your fitness goals, then let’s dive a little deeper.
Below are some reasons why swimming is a superior workout:
1. Swimming makes you slim.
Swimming makes your arms and legs work hard against the water.
This is tantamount to exercising using weights but with reduced risks of muscle or joint injury.
Resisting strong water currents not only builds firmer and stronger muscles, it also provides a lot of cardiovascular exercise and training.
Every swimming stroke or style targets a different muscle group.
For example, you engage your core, shoulder muscles, (upper and lower) limb muscles, (front and back) trunks and neck when you do freestyle or breaststroke.
When you engage your body’s largest muscle groups in a vigorous swim, it leads to faster metabolism.
Even if you do a light to moderate swim for about 30 minutes, this will burn about 500 calories.
If you keep a regular swimming routine, it will gradually result to weight loss.
2. Beat stress with a regular, vigorous swim.
According to sports psychologists, swimming for about 30 minutes a day releases endorphins.
These ‘happy’ hormones help defeat anxiety and depression.
You are literally going to feel better after a strenuous swim based on research.
Don’t believe me?
Try swimming five laps and see how it turns a bad day into a good one.
3. Reap the benefits of aerobic exercises without putting too much strain on your joints.
Other active sports offer similar aerobic benefits such as improved digestion, clearer skin, improved alertness, and weight loss as swimming.
But they put more strain on your bones and joints.
For example, runners are susceptible to muscle injuries than swimmers.
Because of buoyancy, swimming is easy on your bones, joints and muscles but they provide the same benefits as other full body work-outs.
4. Swimming is open to people of all ages and fitness levels.
I know a handful of 70-plus divers, so what’s stopping you?
Whether you’re young or old, novice or expert, you can choose swimming to keep your mind and body in great shape.
Even those with previous injuries (or handicapped) can also integrate swimming as part of their rehabilitation or regular fitness program.
This is one of the best things about swimming, whatever your capabilities and limitations may be, you can transcend them if you’re willing to try.
5. Playing in the water never feels like a chore – it is always pleasurable activity.
Time flies when you do what you love - so it is when you swim.
As you learn more about the strokes and other swimming techniques, you discover more ways to enjoy the water.
Science confirms that swimming is more than just a fun pastime.
Picture kids wearing mermaid tails for swimming.
Aren’t they enjoying very much?
Swimming at Turtle Bay Dive Resort
When you stay at Turtle Bay Dive Resort you can choose to:
- do laps in our 19m lagoon pool;
-swim in the calm sea in front of the resort; or
- swim from White Beach Savedra - one of the best natural beaches in the island of Cebu (White Beach is only 20 minutes from Turtle Bay)
Article by: Danielle Schofield
With regular appearances from the seabed to the big screen’s cartoons, the starfish is a widely-known and well-loved sea creature, especially with children. However, it’s not actually a fish and for that reason, marine biologists prefer to call the invertebrate a sea star.Most people know that sea stars typically have 5 (or multiples of 5) identical arms. These arms extend from a center body in a star shaped arrangement, and they travel across the seabed slowly with suction-cup “tube feet.”Here are seven more fun facts on sea stars you can use to impress your kids/friends/fellow divers the next time you spot one: #1 – Sea stars can reproduce sexually and asexually. During ideal conditions, sea stars group together to spawn, and have sexual organs, or gonads, in each arm. Males and females release thousands of sperm and eggs into the water and hope they meet for fertilization. Asexual reproduction usually occurs as a result of dismemberment. #2 – Sea stars have unusual stomachs. It pushes its stomach through its mouth, digesting food while the stomach is outside its body. #3 – Sea stars don’t have a brain or blood. Instead of blood, they have a seawater vascular system. In the place of a brain, the sea star has an intricate nervous system. #4 – Sea stars can change gender. Depending on availability of food and the water temperature, a sea star can change its gender to whichever one is best suited for its environment. #5 – Sea stars can regenerate body parts. A new sea star can regenerate if part of it becomes severed. Regeneration is a less than ideal way to reproduce because it doesn’t allow for DNA diversification. #6 – The female sea star can produce millions of eggs. Other animals eat most of the eggs, meaning only a few will ever become adults. #7 – They have an eyespot at the end of each arm. Their vision is primitive, and they can only sense movement, light and dark.
Cebu is a very well-loved destination, and for good reason: no matter what type of traveler you are.
There is just too much to see — from the northern islands of Malapascua and Bantayan, to Camotes, all the way south to Sumilon — that it would take multiple trips to see just the well-documented sights of this province.
On the western side of the province, facing the Negros landmass and Tañon Strait — an incredibly rich marine environment — is the tiny town of Moalboal. Moalboal has a quiet, small-town feel, perfect for those of you yearning for a vacation from their vacation — until you discover what’s underneath its waters. Quiet, sleepy Moalboal sees unmatched action underwater — yet another reason to keep coming back to Cebu.
Here are 5 reasons why this underwater paradise is worth it, and why you should consider it for your next Cebu adventure:
The sardine run — a phenomenon in which millions of sardines form shoals as a defense mechanism against predators — is one of the most fascinating underwater spectacles to witness. Moalboal makes it rather easy to appreciate this sight: just off the shore at Panagsama Beach, millions of sardines congregate, creating long swaths or tornado-like shapes, moving in a slow rhythm that will leave most spectators speechless.
The best way to see the sardine run is from down below, by scuba diving or freediving. But it is still possible to see the sardines from snorkeling depths.
Moalboal is home to several spectacular dive sites, including Pescador Island, just 10 minutes from Panagsama Beach. Considered one of the world’s best dive sites, Pescador Island offers fairly regular sightings of sea turtles, schools of jacks, frogfish, sea fans, and sundry soft and hard corals. Snorkeling trips are also possible for non-divers.
Other dive sites around the area include Tuble, Tongo Point, White Beach, Basdako Sanctuary, and Airplane Wreck, in which a two-seater plane was sunk to serve as an artificial reef. Sea turtles are also regularly sighted at the house reefs off Panagsama Beach.
With world-class dive sites just a stone’s throw away, Moalboal also makes for the perfect place to take scuba diving certification courses.
Facing the west with a distant view of Negros, Moalboal’s sunsets are another stunning sight, especially after spending a long day underwater. It’s not unusual too to spot a sea turtle wading in the waters of Panagsama as the sun sinks and bathes the beach various hues of red, orange, and purple.
With its long stretch of white sand and clear waters, White Beach, or Basdaku, compensates well for Panagsama Beach’s lack of shoreline for those who want their dose of sun, sea, and sand. White Beach also hosts a line of resorts, making it an alternative base to Panagsama Beach.
Most travelers to Moalboal opt for a sidetrip to Kawasan Falls, which is about 30 minutes away in the next town of Badian. A multi-tiered falls, Kawasan’s first and biggest tier can be reached by walking 1.5 kilometers inland, where a natural pool awaits visitors. Snacks are available from stores surrounding the falls. Getting to the second and topmost tiers will require another 15 to 20 minutes.
Tags: It's more fun in the Philippines, Philippine dive resort, preparing for scuba vacation, dive resort cebu, diving vacations in the Philippines, Booking dive vacations, places of interest in Cebu City
By Jessica Vyvyan-Robinson
Respecting the ocean is a huge part of being a responsible diver, as is the understanding that we are privileged visitors to the underwater world and should conduct ourselves accordingly.
Part 2 of 2
Experience is expensive, which goes along with the old adage that an expert is just a person who's made every mistake possible in a very narrow field. Whether you're approaching expert status in the world of dive travel, or you're just hoping to lessen the cost, we offer these tips on getting the most out of your diving vacation. 21. Wear sunscreen beginning on the first day. A sunburn in paradise is no fun. 22. If the divemaster sets up your gear, check it before the dive. 23. Stash a pen in your carryon for filling out immigration forms. 24. If you're traveling with new dive gear, give it a test run in a swimming pool or watering hole before the trip. 25. Dive suits have a way of shrinking, especially over the holidays. Make sure yours still fits. 26. Keep a protein bar and bottle of water in your carryon to stave off hunger pangs. 27. Flying to the other side of the world? Stay up as late as possible the night before leaving to lessen jet lag. 28. Baby powder. You'll know what it's for when you need it. 29. Keep a firm grip on your luggage upon arrival, not because of crime, but because island cab drivers can be very aggressive in soliciting your business. 30. Get some cash changed into the local currency at the beginning of your trip, even if credit cards and gringo bills are widely accepted. It's great for tipping and light souvenir shopping. 31. A bottle of the pink stuff can be worth its weight in gold. 32. Forget to log a dive? Check with your boat crew or dive shop, they can verify site names, dive depths and the name of that funny little fish with the thingy on its head. 33. Full-foot fins, even ones that fit like a glove, can cause blisters after several days of hard diving. A simple pair of socks will help. 34. If you rent a car, first find out what the terms of the agreement are and what the local regulations are (do you need a special driver's license? is the driving on the opposite side of the road? do you need to return the car with a full tank of gas?) 35. Stay healthy by washing your hands the same way you clear your ears on a dive: early and often. 36. If you have a sensitive tummy, beware of ice cubes made from the local water supply. 37. Smile. You're on vacation! 38. Slip-on deck shoes or Teva-style sandals are better than flip-flops for a week on a liveaboard. 39. Sometimes a bad movie is better than a boring flight.40. Hardworking dive crews appreciate verbal praise, but a good tip is worth a thousand words.
Part 1 of 2
Experience is expensive, which goes along with the old adage that an expert is just a person who's made every mistake possible in a very narrow field. Whether you're approaching expert status in the world of dive travel, or you're just hoping to lessen the cost, we offer these tips on getting the most out of your diving vacation. 1. Don't overstuff your bags — you'll need room for souvenirs.