The angel shark is a fascinating species of shark that belongs to the family Squatinidae. It is also known as the monkfish or the angel shark, and it is one of the most unique and unusual looking sharks in the world.
Angel sharks are flat-bodied sharks that are perfectly adapted to life on the ocean floor. They have broad, flattened bodies that allow them to blend in with their surroundings and avoid detection by predators. Their body shape also makes them excellent ambush predators, as they can lie completely motionless on the sea floor, waiting for their prey to come close before striking.
Another unique feature of the angel shark is its ability to partially bury itself in the sand or mud, leaving only its eyes and the top of its body exposed. This allows the shark to remain hidden from prey and predators alike, and it also makes it difficult for humans to spot them.
Were do we spot Angel sharks
Angel sharks are generally found in shallow, sandy areas in temperate and tropical waters around the world. They are most commonly found in the western Atlantic Ocean like the Canary islands, but they can also be found in the Mediterranean Sea and eastern Pacific Ocean.
In the winter period, the angel shark is a common sighting while diving in Tenerife.
Despite their relatively harmless nature, angel sharks have been hunted extensively for their meat, oil, and fins. This has led to a significant decline in their populations, and they are now considered endangered in many areas.
Conservation efforts are currently underway to protect the angelshark and ensure that its populations recover. These efforts include restrictions on fishing, habitat conservation, and education programs aimed at raising awareness about the importance of these unique and valuable creatures.
The angel shark is a fascinating species of shark that has adapted to life on the ocean floor in remarkable ways. Its unique body shape and behavior make it a truly remarkable creature, but it is also under threat due to human activities. It is up to us to take action to protect these incredible animals and ensure that they can continue to thrive in our oceans for generations to come.
Discover scuba diving experience
Have you been wondering what it’s like to breathe underwater ?
With one of our professionals, you will have an explanation about what you're likely to see, go through a thorough safety briefing and he or she will demonstrate how the dive equipment all works.
After that we move to a shallow reef site, gear up and enter the water for your first experience of breathing underwater. You will do some basic skills to get comfortable with breathing and the necessary dive equipment. Once you are comfortable we take you for a mesmerizing tour of the underwater marine life from south Tenerife.
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Discover Scuba FAQ's
In our Discover scuba diving experience you will learn some safety rules and in the water a few basic skills. Further you experience what wearing scuba equipment feels like and how easy it is to move around underwater while wearing it. All this will carry over to your full scuba certification, open water diver course.
You must have a minimum age of 10 years, be comfortable in the water and the Discover scuba diving program is for Non-certified divers.
The complete Discover scuba diving program takes approximately 4 hours.
In Confined Water the maximum depth is 6 meter/20 feet and in Open Water is 12 meter/40 feet.
PADI Discover scuba diving is not a scuba diving course so you will not be certified as a diver. After completion you can book inside a time frame of 14 days with the same PADI dive center/ instructor more dives without the need to do a DSD experience again.
Because of the abundance of marine life, the beautiful volcanic surrounding, calm and clear warm water the south of Tenerife is excellent and very suitable for doing a Discover scuba diving experience.
Invest for success
When I talk about ‘Invest for success’, I am not just talking about spending money, investing can be time and energy, so just remember during your diving career you do not need to continue spending copious amounts of money on new dive equipment. Also, I am writing this in the hope for you not to make the same mistake I done at the beginning of my professional career.
For anyone that has looked up diving equipment, it can look more confusing than the Rosetta stone. There are many different brands that specialise in different parts of equipment. Diving is also a sport with an individual needed lots of different piece of equipment;
- Wetsuits / dry suits
- Dive computers
- Dive instruments
The list can be endless, it is also made even more confusing with the types of diving there is;
- Warm water
- Cold water
- Wreck diving
- Ice diving
- Cave and cavern diving
Your own opinion
Once again, this list goes on. For someone who has just started their diving adventure this can be daunting. However, like with most things, the more you do it and research the more of an understanding you will have. Just so everyone who reads this knows, there are many different people with many different opinions, but for me personally I would always try something before ever either dismissing it or buying it. Always make up your own opinion on something.
When I was starting off my professional diving career I made the mistake that I do not want anyone else to make which was to invest poorly in equipment I knew I would have to invest in again after a little while. This was from the fact I felt that people cared more about me spending money than rather help me choose the right equipment for what I wanted. It was caused by naivety and greed. I invested in equipment that after diving for a few months I needed to replace as it was not good enough for a professional. So, I ended up spending twice as much on the same but better-quality equipment for the second time.
Diving equipment if treated correctly and properly maintained can last a life time. This is why I say if you invest for the long term at the beginning of your career you will not need to invest again if you are happy with your equipment.
There are always two things I recommended to any new or experienced diver to own and that is a dive mask and dive computer. These two pieces of equipment do not take any room up in your luggage whilst you travel, and diving always feels better with your own tested stuff.
The reason I say you should have your own mask is for fact that like any experienced diver knows, just like your hair, you can have a bad mask day. However, owning your own mask that you have properly fitted and are comfortable with can reduce these bad mask days. The mask I use at the moment and I would 100% recommend to anyone is the Scubapro Devil. It costs around 59€ and is a single frame. But like I said before, before buying anything especially a mask, go try them on first as a mask that fits my big head might not fit someone with a smaller face.
The second piece of equipment I would always recommend for a diver to own personally is a dive computer. A lot of beginner divers over look this as you may think ‘I will just rent it from the center’ which is obviously a choice or you may think as it is a little more expensive you do not want to invest right now. What I can say is that having your own computer that you understand and can set to your personal comfort is something that can keep you out of danger.
Renting a computer from a dive center is not a problem but lots of different dive centers use different computers, with different settings. If you read the manual and understand the computer before the dives then all is fine. Having your own computer, you will understand your limits and the computers directions which makes any dive more comfortable.
Dive computers can cost anywhere between 190-1100€, the computer I use now is the Scubapro Galileo G2, which is an amazing computer for divers of all skill levels, from beginner to tech diver. However, if you are more a casual recreational divers a dive computer I would recommend is the Scubapro Aladin A1. It is around 330€. If you think about it, a dive computer can last years if looked after properly. Lots of centers will charge around 6€ a day to rent a computer, so that is works out to 55 days of diving. Which many of you can easily do in a year. A dive computer is a long-term investment and it will prove to be one any diver should make.
Scubapro demo center
With all the other equipment make sure you do your own investigation before purchasing, if you have any questions on equipment, please feel free to send us an email and we will help in any way we can.
At the dive center you will find a full range of regulators for single, double, stage and sidemount configurations, computers, bottom timers, compasses, BCD´s and wings for single and double cylinders, sidemount systems, fins, masks, snorkels, suits, boots and SeaLife underwater camera´s.
For testing we have some rules so feel free to contact us and see if we can work something out.
Here at Aquarius, we are here to help first to make sure all divers are happy with their own equipment.
SAC and RMV
SAC stands for Surface Air Consumption and RMV for Respiratory Minute Volume. Your SAC rate is to measure the amount of gas consumed in bar while you are breathing for one minute on the surface. While the RMV measure the amount of gas consumed in liters per minute on the surface. Note, in our examples we will use the metric system, meter, bar and l/min.
Keep in mind, that your SAC rate is cylinder specific. If your SAC rate was based on the use of a 12 liter cylinder but you change for example to a 15 liter, than you need to recalculate your SAC rate.
The benefit of knowing how to calculate SAC and RMV rate is that you can use these values during your dive (gas) planning. This is as well for a recreational as for a technical diver an important aspect because running out of gas is one of the most common issues in diving incidents.
Time needed: 4 minutes.
How to calculate SAC and RMV
- Check consumed gas
Check the amount of gas you consumed in bar during the dive or period of measurement, start pressure minus end pressure.
- Note the average or maximum depth
For a complete dive you can use the average depth. For a period of measurement at a constant depth use this depth, both depths are in ATA.
- Determine the time
Use the total dive time for a complete dive or the time, i.e. 10 minutes for a period of measurement at a constant depth.
- Calculate total bar used / total dive time = bar per minute used
i.e. 200 - 150 bar / 10 min. = 5.0 bar per minute used
- Calculate average or maximum depth in ATA
(depth / 10 m) + 1 = Atmospheres Absolute (ATA)
i.e. (20 m / 10 m) + 1 = 3 ATA
- Calculate SAC
SAC = (total bar used / total dive time) / (average or maximum depth in ATA)
i.e. (200 - 150 bar / 10 min.) / (20 m / 10 m) + 1
i.e. SAC = 5 / 3 = 1.67 bar/min.
- Calculate RMV
RMV = SAC x Cylinder size in liter, i.e. 10 liter, 12 liter, 15 liter
i.e. RMV = 1.67 x 12 = 20 l/min.
To find the answer, determine how many liters you consume at 30 m, 18 l/min x 4 ATA = 72 l/min. Calculate your total gas, 12 x 120 bar = 1440 liter. 1440 / 72 = 20 minutes. The answer is 20 minutes.
It is better to determine your SAC and RMV over multiple dives and under different conditions. i.e. current, warm and cold water, limited and good visibility, effort, at rest, etc. With this approach you will get a more accurate average SAC and RMV rate.
There is no such thing as a best SAC or RMV rate however you see that there is an average RMV of 20 l/min at work and around 15 l/min at rest. But don´t take these numbers as a fixed value, calculate yours and work with it.
SAC stands for Surface Air Consumption and RMV stands for Respiratory Minute Volume.
We wish you a good SAC and RMV calculation, last but not least safe and awesome diving!