International Shark Day today. A time to celebrate those wonderful elasmobranchs. And but Amilla features a particularly distinctive one. It appears to be its own species with a variegated skin patter, but as marine biologists have clarified that it is just an individual with a genetic skin condition. A bit like shark vitiligo.
QI: Shark Sex
Sex…AND Sharks! Now that I have you attention!…
Q: How many penises does a male shark have?
Q: BUZZZ. Nope. Two penises. “He uses only one at a time, depending on which side of the female shark he finds himself.” One is used for depositing and the other is used for “holding on”. Ducks famously have multiple vaginas (so they can choose which of the many male ducks who take her forcibly to actually sire her children). Sharks have multiple penises.
That’s not all they use to literally embrace their beloved. Male sharks also use their teeth used to hold onto female shark (so much so that “female sharks tend to have thicker skins than males and bigger bodies in order to withstand the results of a male shark trying to hang onto her with his teeth” (up to 3x thicker). Now THAT’s a love bite!
Q: Since sharks are fish and not mammals, how many ways can sharks give birth?
A: One (laying eggs)?
Q: BUZZZ. A number of shark are indeed oviparous (lays eggs), but a number of species are viviparous (give birth live).
A: So two??
Q: BUZZZ. Some shark species are actually ovoviparous meaning that the eggs hatch in the oviduct within the mother’s body and that the egg’s yolk and fluids secreted by glands in the walls of the oviduct nourishes the embryos.
Best of the Maldives: Daytime Nurse Sharks – Rihiveli Beach
One of the popular Instagram shots are people mingling with docile nurse sharks. They are quite a big species and so their size and numbers make them look all the more intimidating for those who think are all sharks are scary creatures. Actually, they are about the most docile Selachimorpha you will ever come across.
Nurse sharks are nocturnal and during the day they are often found just lying on the bottom of the seabed or under some overhang. Hence, their French moniker (which is one of my favourite fish names of all time) – “Sleepy Shark”. If anyone claims that a shark always needs to keep moving or it dies, just send them a picture of these dozy dog fish lounging on the seabed. And as a result, unlike the puppy reef sharks so visible cruising the lagoon shallows all day long, nurse sharks are rarely seen during the day from the land.
Rihiveli Dream not only has one of the biggest gathering of resident nurse sharks, but they are very easily seen as they nap in a protected lagoon area just behind the staff quarters. Such proximity and numbers are the result of routine feeding that has lured them in past years; however, the resort no longer engages in such practices. The gang must have decided they like the tranquil and sheltered waters as they continue to hang out there through the day. And guests can go get their Instagram shots from shore during their day-long siesta.
Best of the Maldives: Shark Swing – LUX South Ari Atoll
Shark Awareness Day today! And what better way to appreciate all things than from inside the belly of the beast. Or at least a swing fashioned to look like one of these majestic creatures courtesy of LUX South Ari Atoll.
Maldives QI – Part X
…for “X” marks the spot where in the world the Great Whites are.
Q: When was the last shark attack in the Maldives?
A: A year ago?
Q: Buzzzzz! No. The Maldives have never had a recorded shark attack on a human.
World Tourism Day today and the Maldives stand tall (much taller than its famously low elevation) among the titans of the travel industry as a bucket list destination. And for selachophiles, the bountiful populations of a range of shark species is one of the many oceanic attractions.
Still, for a few of the more aquatically apprehensive, all these dorsal fins can evokes a number of cinematic fears brought on by everything from Jaws to Deep Blue Sea and Thunderball. In fact, nearly all species of shark keep quite a distance from diving and swimming humans. When you spend some time diving and snorkelling with them, you quickly figure out how they are the scaredy-cats of the ocean turning and fleeing at the least disturbance.
In most cases, these cartoonishly portrayed “man-eaters” are the species “Great White”. And if sharks’ docile temperament isn’t enough to re-assure you then, you can at least travel to the Maldives knowing that you won’t encounter any Great Whites. Great Whites are found pretty much all over the world east-to-west, and north-to-south. But there is one place they don’t hang out in and that’s the Indian Ocean (except for a patch off the coast of east Africa).
Best of the Maldives: Zebra Shark – Gangehi
The Discovery Channel’s annual Selachii celebration of these always intriguing ocean characters. In the Maldives, every week is Shark Week especially for the ubiquitous reef sharks (black-tipped and white-tipped). But the waters also are home to some more exotic varieties. One of these is the Zebra Shark. Native to the Indian Ocean, but nonetheless quite uncommon on the Maldives reefs. The best place to spot on is Gangehi resort where several have been spotted (pun intended) with considerable frequency. They are quite similar to the Nurse Sharks with their long caudal fin at back and their lazy daytime habits on the seafloor, but they are distinguished by their many spots along their back.
In honour of Shark Week, I have added the new “Shark” category tag to Maldives Complete so you have your own Maldivian virtual shark extravaganza any time you like.
Best of the Maldives: Nurse Sharks – Huvafenfushi
Photo credit – NICOLE HERZ MSc
International Nursing Day today I thought was an apropos time to call out the eponymous “creature feature” nurse shark. As dependable as those faithful healthcare workers who alleviate our suffering, the similarly calm and composed ‘Ginglymostoma cirratum’ can be found on the Huvfenfushi house reef. Even more precisely, the resident marine biologist Nicole Hertz told us we could see her under the restaurant’s decking among the support pillars. Now, we’ve had lots of snorkel guides enthuse about lots of aquatic residents and, but unfortunately we all too often don’t have the fortune to see these allegedly regular visitors. But as advertised, we swam over and the Huva nurse was sitting on the sand precisely where Nickie said she would be.
Nurse Sharks are much more nocturnally active so it was not unexpected to see her just lying there. But, when we participated in Huvafenfushi’s night time “night aquarium”, she perked to life and paid us a visit with a number of graceful passes by the window (see below).
Watching the nurse shark at night from the underwater spa.
Photo credit – NICOLE HERZ MSc
Best of the Maldives: Shark Feeding – Sun Island
To feed or not to feed. That is the question.
Perhaps one of the many questions that might get addressed in this week’s infamous Discovery Channel “Shark Week”.
The feeding controversy rages across the online travel forums. The opponents tend to start from the ‘take only pictures, leave only footprints’ ethos of minimising interference in nature which is certainly a valid and sensible principle. To compound the protests are the quite serious health damage that can accrue to many fish when fed a number of human foods (most commonly breads). But there are also behavioural and other impacts to fish feeding practices. Even relatively safe foods fed from hands can make fish ‘aggressive’ to humans as they get thinking that any human will have some food to offer them.
Still, fish feeding remains an entertainment staple at many resorts. The most innocuous practice is to scoop out the large quantity of fish scraps that accrue from so many seafood dishes in the resort kitchens. These scraps are exactly the diet that the scavenging fish like sharks and rays eat anyway. Still, the dogmatic environmentalists will protest even these practices.
I have been torn on fish-scrap feeding. For the past year, I have contacted a number of marine biologists and posted on a number of forums to try to identify specific harmful impacts to fish populations of fish-scrap feeding. To date I have been unsuccessful in finding any bona fide harms to fish-scrap feeding.
I’m sure it is not ideal. It is certainly not all ‘natural’. So why would I even consider supporting the practice.
It might be that there is a relatively small downside impact to the practice, but a rather substantial upside. That benefit would be the classic ‘zoo argument’. The notion that having zoos or feedings or other contrived (but controlled for animal welfare) practices that bring humans and animals closer together is good for both humans and the animals. In our manufactured, processed and urbanised world, one of the biggest threats to nature is mankind’s distance from it. When people don’t have strong and deep connections to these creatures, as they are just tasty filets on their plate, then they lose the political will to raise funds for their preservation and pass constraining laws for their protection. By offering guests these feeding events, it gives them an opportunity to witness up close these animals and their inspiring qualities.
The more interactions we can foster between humans and nature, the most admiration and connection we can foster to them, I am convinced the more the world will muster up the resources, understanding and interest in investing in their welfare.
I have seen many of these events at resorts and Sun Island was by far the most mesmerizing. You have the regulars like the rays and the jacks, but the star attraction at Sun were the sharks. Every island has an array of reef sharks. While some get to be quite sizable, few are over a metre in length and most are pygmy-like pups not much more than a foot long. Sun had these, some bigger than I have seen in the lagoon waters, but they also were visited by a collection of nurse sharks. These fellows are quite sizeable and have the peculiar behaviour of ‘sitting’ on the ocean floor. Before the feeding started, Lori and I had arrived early and noticed these and we couldn’t tell if they were really sharks or just shark-shaped rocks on the ocean floor.
The Sun Island shark feeding does respect a number of parameters which do minimise any deleterious effects. First, dietarily, they only feed with fish scraps which would be consistent with the shark’s natural diet. Second, they are feeding from a pier and not from hand (as some sting ray feeding is done and as now stopped diving excursions have done in the past).
Whatever ever your perspective on this healthy debate, enjoy the frights and insights of Shark Week so that everyone can respect and support these wonderful creatures.
Best of the Maldives: Whale Shark Event – Conrad Rangali
Festival season has begun with Glastonbury kicking off this week. But in the Maldives the festivals are even wetter than the infamous British versions, and instead of willies, snorkel and fins are more de rigeur. And the ‘big acts’ aren’t aging rockers, but prehistoric monsters! A big shout out to Conrad Maldives Rangali for their gala “Maldivian Whale Shark Festival” which takes to the stage today drawing people from all over the Maldives and the world…
“The Maldives Whale Shark Research Programme (MWSRP) in association with Conrad Maldives Rangali Island, South Ari Marine Protected Area (SAMPA) and the International Union for the Conservation of Nature (IUCN) will launch the first Maldivian Whale Shark Festival in South Ari atoll on 29th June 2013. This one-day festival has been created to highlight the potential cooperative initiatives between resorts and local island communities while providing a positive platform from which to raise awareness of this magnificent species….Activities include whale shark excursions, an ecological treasure hunt, cultural demonstrations, guest presentations about whale sharks and coral reef ecology, participatory performance art coordinated by London based arts company Emergency Exit Arts and of course traditional bodu beru music and Maldivian food. Guests from surrounding resorts and local islands are invited to join the day of whale shark related festivities on Dhigurah Island in South Ari atoll.”
Best of the Maldives: Guitar Sharks – W Retreat
“Swimming in, lord, the deep blue sea. I’d have a, all you pretty women, fishin’ after me.”
Jimi Hendrix would have been 70 today. And I’m sure that he would be riffing today. Often considered the greatest guitarist of all time, today’s post pays tribute with a similarly rare, striking individual in the Maldives waters – the Guitar Fish.
I was first alerted to these allusive critters during our visit by the W Retreat divemaster Hamid who told me about seeing them regularly. Hamid’s successor, Tessa Van Den Abbeele, added the following when I contacted her…
“Out of experience from being in the Maldives for a few years the Guitar fish is a spectacular specie to see but not often spotted, but said that we have encountered 3 guitar fishes together a few times around the house reef of W Retreat & Spa. Other sites we have seen them is Maaye Thila, Fish Head and Himendhoo thila. The guitarfish are a family, Rhinobatidae, of rays. The guitarfish are known for an elongated body with a flattened head and trunk and small ray like wings. The combined range of the various species is tropical, subtropical and temperate waters worldwide. They often travel in large schools. Guitarfish’s have a body form intermediate between those of sharks and rays. The tail has a typical shark-like form, but in many species the head has a triangular, or shovel-like shape, rather than the disc-shape formed by fusion with the pectoral fin found in other ray. The animal looks like a mix between shark and ray, they are often confused with sharks, especially when seen underwater for the first time. Maldivian fisherman for example simply refer to them as sharks. The largest can reach a length of over 3 meters. Guitarfish or most often seen while resting on the sandy bottoms in the vicinity of coral reefs. The mode of reproduction of all the family members is ovoviviparous (yolk sac viviparity) They swim in a shark like manner with lateral strokes of the tail and caudal fin not by undulating their pectoral fins like most rays do.”
It seems particularly a propos that a resort so imbued with music (and innovative music at that) would have such a captivating creature frequenting its reef.
PS. Joke for the kids…What do guitar fish perform? Guitar reefs?