Watch.
From what I understand, this is precisely what has led to the death of Markus Groh - same species, diver way too close to the bait crate and way too passive, stirred up sand.
Need I add that this is not sustainable?
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Hello Martin, I am the owner of those images and I was very surprised to see them on the blog article you posted. I would like to ask you to immediatly remove them from the web as well as the comments that concerns them- which dont correspond to the reality in that specific situation. The person who is facing the shark had to push the shark away as it was a very intrusive personality and he touched it as little as he could and the dive was aborted immediatly. I don't want the images to be used in a provocative way when they don't reflect the reality of what happened. And I especially don't condone or encourage physical contacts with sharks, but in this specific instance, it could not be avoided by the diver- as I said, he got out of the water right away after the occurence. I am looking forward to hearing from you soon, Thank you, Jean-Marie Ghislain.
Like a high stakes game of musical chairs, (that person) is at the end of a long record that has been playing for almost a decade. When the music runs out someone will find themselves and the sharks in a completely untenable situation. There will be plenty of blame to go around.
We might talk of apex size classes rather than apex species in relation to sharks and other marine predators that grow indeterminately throughout their lives.
Using the criterion of apex size classes, the categorisation of sharks as apex predators would be restricted mainly to adults of large-bodied and wide-ranging species that influence many species within a community. Use of this definition would limit the term apex predator to large individuals (>3 m) such as older juvenile or adult white, tiger, hammerhead and dusky sharks...
(and adult Bull Sharks!)
Most shark species and size classes are in fact best described in the role of mesopredator.
The ecological role of sharks within the diverse and impacted marine environment requires careful consideration.
Our size-based view of the classification of predatory roles raises important questions about what objectives to manage, and how these objectives can be best achieved.
Protection of reef communities through marine protected areas (MPAs) or fisheries regulation (or indeed, naturally on those few locations far from human population centres) would ensure the mesopredator sharks on these reefs are sheltered from fishing pressure. However, the same may not be true for apex predators because their broad movement patterns and large home ranges (Meyer et al. 2009) would expose them to a greater diversity of fishing fleets and gears, and thus a greater overall mortality than the smaller-ranging, reef-dwelling mesopredators. Hence, the apex predators of coral reefs may be silently eliminated by offshore pelagic longline fisheries, unbeknownst to those managing reef diversity and function (Cox et al. 2002).Therefore, reef-based MPAs are not adequate to protect these species.
296 Fig. 2. Conceptual diagram outlining the loss of apex predators from reef regions and corresponding system responses where a marine protected area (MPA) is present (upper) or absent (lower). Presence of MPAs leads to different states of equilibrium on individual reefs
Avoiding and mitigating these impacts may require consideration of the ecosystem- and jurisdiction-crossing movements of apex species and size classes. Therefore, management needs to consider not only the effect of reef-based spatial closure, but the amount of time these regions provide shelter to large, mobile, apex species.
My name is Viktor Hesselberg- Thomsen.
I am 19 years old, live in Fredensborg and graduated buzzer 2013. In my gap year I came to Fiji for six weeks with the organization Projects Abroad to work on a project that aims to protect and conserve sharks primarily here in the South Pacific . We do this by collecting data to hajforskere , develop educational material about sharks , and to train local people in our neighborhood about sharks.I have always been fascinated by the sea and the animals that live in it. When I saw this project , I had to simply join me . I pushed the plans I had at the start of the new year, and wrote me up for the project.
After 35 hours of travel I arrived in this amazing country with a very friendly locals .
In the project we are 20 volunteers, and the age difference is great. There are about ten , which is between 17 and 25 years. The rest are somewhere between 26 and 63 years. Although there is huge difference in age and background between us is really good atmosphere in the group and I have made friends all around the world.
Two to three times a week we'll go diving .
Here we collect data by counting how many and which sharks we see. We also an underwater camera with a feed box . In addition, we develop training materials or game / play ( involving sharks) , these we use when we are once a week take off for a school or a local village to give sharks a positive ' image ' of the people especially the children. We also try to catch baby sharks to take DNA samples and to cause them a ' tag ' that makes it easy to follow them.
Once a month , we take a dive center out and watch them feed the sharks.
Here we have 40-45 bull sharks swimming around , you see how easy and elegant grabs tuna heads , as they are fed . This is one of the best experiences of my life , and along with the rest of the project and unity with the other volunteers have it pushed to my view of sharks and the world at large. I really think that those who get the opportunity to see sharks in the wild , must seize it !
Viktor diving with sharks in Fiji.