Close-up view of a Mako Shark in the waters off of New Zealand. Makos are one of the fastest fish in the sea, capable of speed bursts of up to 60mph. Of all shark species, they also have one of the largest brains, relative to body size.
Makos are an endothermic shark, meaning that they can generate heat within their bodies. This adaptation allows them to swim into cooler waters to feed on oily fish, giving them great strength and fueling their powerful muscles.
The numbers of Makos have declined worldwide due to overfishing and the increasing gloval demand for shark fins. They are currently listed as vulnerable by the IUCN.
I was planning to do a post about nudibranchs but then I got all distracted by their chemical warfare and cannibalism and venomous appendages and it turns out nudibranchs are terrifying. So here's a whale shark. Also, I for one welcome our new molluscan overlords.
Bwoaah, SEMUA bagian dari diriku bisa diMANFAATKAN dan diOLAH.
Hiu berkata : "Ku Ingat sebuah video, dimana temanku yang di potong sebagian tubuhnya hanya karena bagian tersebut bisa d uangkan, setelah itu temanku d buang bgtu saja d lautan. Apa kalian tau pentingnya bagian tubuh it untuk kami?? Yaah kami adalah ikan yang spesial, kami akan kedasar lautan dan tidak bisa bergerak saat bagian tersebut tidak kami gerakan. Kami Tidak seperti ikan biasanya yang ada di air"
Lalu seorang pedagang berkata : " hey !! yang kalian liat mengenai video hiu yang tenggelam ke-dasar akibat di potong siripnya, itu hanyalah sebuah fiksi atau kebohongan semata. Itu hanya sebuah akal akalan penggiat konservasi yang membuat video itu. Semua bagian dari ikan itu kami olah dan dapat dimanfaatkan, tidak hanya siripnya saja. Video itu dibuat hanya untuk menggangu per-Ekonomian kami !!"
Hiu berkata : " lantas, kenapa sekarang anak-anak kami kalian tangkap juga ?? Anak anak kami yang baru merasakan asinnya air laut langsung kalian tangkap. Apa yang kalian pikirkan ? Kenapa kalian tangkap semua ? Apa kalian tidak bisa menunggu sampai kami sudah tidak bisa berkembang biak lagi ? Apa kalian tidak bisa menunggu sampai anak kami menjadi dewasa ? Sadarlah, kami juga butuh hidup..
(22 Juli 2017, post ini dibuat ketika hiu dan kawan kawannya masih ada dan belum punah di lautan)
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A school of sardines bands together tightly in the shallows
the most beautiful misunderstood creatures on the planet.
Since they've been evolving for hundreds of millions of years, it's fair to say they've earned their place as an apex predator.
but what happens when you take an animal as stunning and important as the shark out of the picture? The rest of the ecosystem falls.
Sharks have been around longer than plants and trees have been on land. they regulate and maintain a healthy ocean by getting rid of the dead, slow, sick and dying.
Without sharks, the ocean would become a very sick place very fast. and what happens when the ocean gets sick?
We cop the price.
With most shark populations dropping OVER 90% in the past few DECADES, we could see a short future for the health of our oceans.
sharks have been the doctors of the sea the past 400,000,000 years and could be extinct in the next 50. We have to save these beautiful species now, before it's too late.
But still, had an awesome day swimming with these guys, they're so curious and cute!
Have you ever wondered how sharks utilize their gills? There’s a common myth that all sharks must be continuously swimming in order to continue breathing, but this is only true for the pelagic or open water species of sharks. They use a method called ram ventilation which forces the flow of water over their gills as they move forward. Benthic and semi pelagic sharks can utilize ram ventilation, but have also adopted a different way of breathing called buccal pumping. This method is used to pump water across their gills with the power of their cheeks and is typically used when they are resting on the bottom of the ocean (Alexis L. Morris, Elisa J. Livengood, Frank A. Chapman, 2015). When fisherman use longlines (usually in pelagic zones and sometimes for up to 12 hours at a time) obligate ram ventilators are at an especially high risk to become bycatch. When caught on a line, they will suffocate because they can’t move forward to pass water over their gills (Tripp, 2016). In the Pacific Ocean alone, 3.3 million sharks are caught each year as bycatch on longlines (World Wildlife Fund). A great way to take action is to choose seafood that is fished or farmed in ways that have less negative impact on the environment (Jordan T. Watson, Keith A. Bigelow, 2014). Check out the app Seafood Watch for an easy way to tell where your fish is coming from!
Meet-The-locals! I can't remember if we were building up to #sharkweek or the next #gameofthrones episode. Either way we're closing in! These next photos illustrate another dilemma we might encounter. Both photos are of the same shark, the notches are distinct enough to make for a pretty easy ID, but when this shark passes from the left, as in the second photo, it becomes a lot more "detectable". The patch of black parasite scarring can be spotted in even the blurriest photos.