Newsletter: 70,000 wheels

Hi divers

Weekend dive plans

Saturday: Shore dives at Long Beach

The weekend looks quite rosy for change, and both Saturday and Sunday should be great. False Bay would be best on Saturday but on Sunday there are going to be approximately 70,000 wheels all trying to pass one another on the peninsula from really early until late afternoon. This is going to severely hamper diving opportunities around the peninsula, so you’re either going to have to get creative, or crack out the popcorn and a lawn chair and enjoy the Cycle Tour spectacle.

I am doing shore dives with students on Saturday, most likely at Long Beach. Let me know if you want to join us.

Clouds at Scarborough
Clouds at Scarborough

Be a good ocean citizen

The Department of Environmental Affairs has proposed 22 new Marine Protected Areas for South Africa. It only takes an email to throw your support behind this excellent development. Read this for more information.

regards

Tony Lindeque
076 817 1099
www.learntodivetoday.co.za
www.learntodivetoday.co.za/blog/

Diving is addictive!

To subscribe to receive this newsletter by email, use the form on this page!

Marine-related MOOCs from edX

As a fourth and final (perhaps) installment to our guide to ocean-related MOOCs for the curious armchair scholar, here is a list of offerings from provider edX, including one about SHARKS. All about sharks!

I have only just discovered edX, so (unlike Coursera, Future Learn and Open2Study) I have not done any of these courses, and don’t speak from experience. The format looks similar to Coursera, so you can pay to get a “verified certificate” for the course, or just choose to audit it (like a Scientologist… bad joke, sorry), which doesn’t cost anything. Like Coursera, edX has an app so you can work (on certain mobile-friendly courses) on your iPad or Android tablet.

Sharks! Global Biodiversity, Biology, and Conservation is from Cornell University and the University of Queensland, and looks like a complete primer about sharks, from their evolutionary and life history all the way through to management issues and human-shark interactions. The next sessions starts on 28 June. Will I see you there?

Tropical Coastal Ecosystems (also from the University of Queensland) is self-paced, which means you can start whenever you want to. The Great Barrier Reef is used as a study example in many instances, and the course deals with coral reefs, seagrass meadows, and mangrove swamps.

Two courses that are focused more specifically on climate and related science are:

Climate Change: The Science from the University of British Columbia in Canada doesn’t have any current or future sessions scheduled, but you can still view the course material. This course not only covers climate, science, but aims to equip you to evaluate climate science, and to communicate facts about the climate to others.

Sensing Planet Earth – Water and Ice from Chalmers University of Technology in Sweden deals with the measurement and monitoring of earth’s ice and water bodies, in order better to understand the changing climate.

Have fun!

Say yes to 22 new Marine Protected Areas for South Africa

Twenty two new marine protected areas have been proposed for South Africa. The benefits of MPAs are well known, so this is excellent news for the future of our marine environment. The public is invited to comment on the proposal, and as a responsible ocean loving individual, sending an email to comment would be one of the ways you can save the ocean. Read on to find out the details.

Proposed new MPAs for South Africa (existing ones in navy blue)
Proposed new MPAs for South Africa (existing ones in navy blue)

Included in the proposed new Marine Protected Areas are South Africa’s first offshore MPAs. The press release from the Department of Environmental Affairs states that:

Many of these new MPAs aim to protect offshore ecosystems and species, ranging from deep areas along the Namibian border to a more than tenfold expansion of iSimangaliso Wetland Park in the KwaZulu-Natal Province. They include charismatic features, such as, fossilised yellow wood forest at a depth of 120m off Port Nolloth, a deep cold-water coral reef standing 30m high off the seabed near Port Elizabeth and a world famous diving destination where seven shark species aggregate, at Protea Banks in KwaZulu-Natal. These MPAs also include undersea mountains, canyons, sandy plains, deep and shallow muds and diverse gravel habitats with unique fauna.

What good will these MPAs do? According to the press release:

The new MPAs will secure protection of marine habitats like reefs, mangroves and coastal wetlands which are required to help protect coastal communities from the results of storm surges, rising sea-levels and extreme weather. Offshore, these MPAs will protect vulnerable habitats and secure spawning grounds for various marine species, therefore helping to sustain fisheries and ensure long-term benefits important to food and job security.

The new MPAs will increase the protected portion of South Africa’s territorial waters from less than 0.5%, to 5%. The government has undertaken to get this figure to 10% by 2019.

What does this mean for you?

Scuba diving

If you’re a scuba diver, you probably know that diving in a Marine Protected Area – particularly in a no-take zone – is an extra special experience because of the abundant fish and other marine life. The prospect of richer, more diverse dive sites to explore is an exciting one, but there are more benefits to this proposal than just enhanced eco-tourism opportunities.

Scuba diving businesses will have to acquire permits from the Department of Environmental Affairs (for about R500 per year) to operate in the Marine Protected Areas. (This has been in force for some time, and ethical dive operators in Cape Town who take clients diving in any of the existing MPAs should be in possession of a permit already.) There are also the permits issued to individual scuba divers (for about R100 per year, obtainable at the post office) to dive in an MPA – you will see this mentioned in Tony’s newsletter now and then, as a reminder.

Environmental protection

Some of the new MPAs are in offshore regions that would otherwise be at risk from destructive trawl fishing and other exploitative activities such as mineral, oil and gas extraction from the seabed.

Many of these MPAs will, like the Tsitsikamma MPA, serve as nurseries for fish stocks. Recreational and commercial fisheries will benefit from allowing the fish to spawn unmolested in protected areas along the coast. Holding ourselves back from fishing everywhere, at every opportunity, shows long-term thinking, and will have short-term benefits as well as for future generations.

Undesirable activities

Not all of the MPAs will be closed to fishing – those of you familiar with the network of protected areas around the Cape Peninsula will be familiar with this idea. For example, a number of pelagic game- and baitfish species may be caught within the Controlled Pelagic Zones of the Amathole, iSimangaliso, Protea and Aliwal Shoal Marine Protected Areas. Commercial fishing permits may also be issued for use in the MPAs.

Existing discharges of effluent are permitted to continue – specifically into the Aliwal Shoal MPA.  This means that SAPPI may continue to pump wood-pulp effluent onto the dive sites there.

What to do?

If you would like to show your support for the proposal – and who doesn’t love a well-chosen MPA? – send an email to MPARegs@environment.gov.za. You have until 2 May 2016 to do so, and you can include any other relevant comments about the MPA proposal in your missive.

You can download the full document detailing the proposed new MPAs complete with maps, management regulations and co-ordinates (a 336 page pdf) here.

Tony and I are looking forward to passing over some of the new MPAs on the Agulhas Bank (maybe numbers 11 and 12 on the map above) next year – without getting wet. You can come too! (But you may have to impersonate a twitcher.)

Who to thank?

This project has been spearheaded by a team at SANBI (the South African National Biodiversity Institute) led by Dr Kerry Sink. Dr Sink has been awarded a prestigious Pew Fellowship in Marine Conservation for 2016, and her fellowship work encompasses a range of projects aimed at strengthening and expanding South Africa’s network of Marine Protected Areas.

We are extraordinarily fortunate to have a scientist and conservationist of Dr Sink’s calibre as a champion for MPAs in South Africa. So you can thank her!

Newsletter: Blooming tides

Hi divers

Weekend dive plans

Saturday: Launching at 6.00am from Simon’s Town jetty for a double tank dive

Coral display at the aquarium in Copenhagen
Coral display at the aquarium in Copenhagen

The water is really doing its best to limit diving right now. It is either murky green or way too windy for decent diving on a regular basis. At some point it will change, but I doubt it will change in time for the weekend. There are areas in False Bay that are clean and free of red tide, but you need to go and look for them.

Saturday has pretty strong south easterly wind and a fair amount of swell, Sunday is not looking much better. I have students who require shore and boat dives so I will launch at 6.00am on Saturday for a quick look and double tank dive, and plan the weekend around what we find.

If you’d like to be notified of diving plans that may materialise if we find suitable conditions, let me know!

regards

Tony Lindeque
076 817 1099
www.learntodivetoday.co.za
www.learntodivetoday.co.za/blog/

Diving is addictive!

To subscribe to receive this newsletter by email, use the form on this page!

Bookshelf: Sharks in Question

Sharks in Question – Victor G Springer & Joy P Gold

Sharks in Question
Sharks in Question

After an extremely enjoyable and informative experience with Whales and Dolphins in Question, another volume in the Smithsonian’s “in question” series, I sought out Sharks in Question.

Published in 1989, this book is chiefly enlightening as a primer in how shark science and attitudes towards sharks have progressed in the last quarter century. Like Ainley and Klimley’s Great White SharksSharks in Question is seriously dated. Far from making this a frustrating reading experience, I found it incredible how much more certain we are of so many things that the authors mention here in speculative terms.

If you’re looking for some current shark science, I would recommend Global Perspectives on the Biology and Life History of the White Shark or Sharks of the World. You could also check out the BBC’s wonderful Sharks series. If you are looking to complete your library of all things shark, however, you could find a place for this volume.

You might be able to get a copy here (South Africa), otherwise here or here.

Giant short tailed sting rays at Millers Point

Giant short tailed sting ray behind the boat at Millers Point
Giant short tailed sting ray behind the boat at Millers Point

Giant short tailed sting rays reliably appear in the warm, shallow waters of False Bay during the summer months. They are seen frequently at inshore dive sites such as Long Beach, but mostly during the warmest months of the year.

They can be seen fairly reliably year-round, however, near the Millers Point slipway. As with Parrie the ray at Struisbaai harbour, the rays at Millers Point have figured out that the discarded fish guts thrown overboard by the fishermen returning from a day on the bay are a steady source of snacks.

Here’s some fly by traffic coming past the boat one November day near the slipway, where we paused between double tank dives to change cylinders and de-gas.

It is illegal to feed these rays or to bait the water to attract them (or anything, if you don’t have a permit), but a short cruise in amongst the fishing boats queuing for the slipway will cause them to come and investigate. Snorkeling or diving this area is very risky because of the boat traffic, so take care.

Marine-related MOOCs from Open2Study

Let me continue to encourage you to use your spare time to pursue the subjects and ideas that interest you even if you have spectacularly missed your calling in life. It is a great time to be alive! I have heard about this thing called the Internet, that apparently contains almost all of human knowledge. Including a bunch of MOOCs.

Among the first MOOCs I did were these two from Open2Study, an Australian course provider.

If you enjoyed The Outlaw Sea, or are interested in piracy, illegal, unreported and unregulated fishing, or general ocean governance issues, Contemporary Issues in Ocean Governance from the University of Wollongong will tickle your fancy.

If you’re interested in the Antarctic, have a look at Marine and Antarctic Science from the University of Tasmania for a quick tour of marine food webs, fisheries issues, and how the ocean regulates earth’s climate.

The final MOOC I want to mention is one I haven’t done, but Georgina and Kate have (and found it fascinating – I trust their judgment). The United Nations Environment Program (UNEP) has launched a MOOC on marine debris. You can find more information about it here. The MOOC ran until December 2015, but one hopes it will be repeated!

Newsletter: Think again

Hi divers

Weekend diving

No dives planned

Diving has been far from spectacular of late and the weekend looks marginal again. There is a wind window on Saturday morning, but it is under pressure from a chance of rain, and a 3 metre swell with a 15 second period. Sunday looks a little too windy (again).

I don’t think that it’s going to be worthwhile to plan anything. If you choose to dive on Saturday, take your time and check out a few different spots before you decide where to get in.

Balloon offshore of Hout Bay
Balloon offshore of Hout Bay

If you’ve ever considered releasing balloons into the air at a party (or a wedding) because it looks pretty, please think again. We found this balloon far offshore near Tafelberg Reef outside Hout Bay. Unsuspecting marine life could have eaten it, or gotten tangled in the ribbon tied to it.

regards

Tony Lindeque
076 817 1099
www.learntodivetoday.co.za
www.learntodivetoday.co.za/blog/

Diving is addictive!

To subscribe to receive this newsletter by email, use the form on this page!

Marine-related MOOCs from Future Learn

Coursera is not the only provider of MOOCs. In fact, providers are legion. Future Learn is another provider, owned by the Open University, with an emphasis on European (mostly British) institutions as course providers. I have enjoyed a couple of their courses and can see a few more that interest me!

My favourite Future Learn MOOC is Shipwrecks and Submerged Worlds: Maritime Archaeology from the University of Southampton. I’d like to think that it covers similar ground to the NAS course, but obviously without the practical aspect.

Also from the University of SouthamptonExploring our Oceans deals with ocean exploration and the variety of ecosystems found beneath the waves.

Introduction to Ecosystems from The Open University deals with the web of life and how organisms interact with their environment.

There are several climate-related Future Learn MOOCs on offer, including Climate Change: Challenges and Solutions, Our Changing Climate: Past, Present and Future and Causes of Climate Change.

Courses related to sustainable solutions to the world’s problems include Elements of Renewable Energy and Water for Liveable and Resilient Cities.

Don’t use these courses as a cudgel to beat yourself with. If you sign up for one and circumstances intrude and prevent you from finishing it within the allotted time, don’t be alarmed. The learning is meant to be for your own enjoyment, and the material will either remain accessible to you as a past student, or you can re-enroll for a future iteration of the course.

Marine-related MOOCs from Coursera

MOOC stands for Massive Online Open Course. These courses are available over the internet, allowing theoretically unlimited class sizes. Courses typically comprises a mix of short video lectures, supplemental reading material, assignments and/or quizzes. Many MOOCs are offered free of charge.

Coursera is one of the largest providers of MOOCs, offering top quality classes from a range of universities, including many excellent ones. Through Coursera I have learned about chicken husbandry, animal behaviour, R programming, maps and map making, statistics, machine learning and some marine-related topics. Here is a selection of Coursera offerings that you might enjoy if you are interested in the ocean and, more broadly, the environment:

Marine Megafauna from Duke University is about large ocean creatures – turtles, whales, sharks, seals, penguins – and what they reveal about the ocean. As part of the course we read scientific papers and extracted data and conclusions from them. This is an excellent skill to learn.

Paleontology: Ancient Marine Reptiles from the University of Alberta is about dinosaurs that lived in the ocean, and the evolutionary changes that took place in their bodies when they moved from land back to the sea. My five year old self is looking forward to this!

Ocean Solutions from the University of Western Australia is concerned with the resources of the ocean and how we can use them to mitigate water and food scarcity, cope with climate change, and use them to source sustainable energy.

Water: The Essential Resource from National Geographic is aimed at teachers (but is still interesting for the rest of us), and deals with ocean and freshwater ecosystems, water use and environmental stewardship.

Our Earth: Its Climate, History and Processes from the University of Manchester is about earth as a system, shaped by its natural processes. I am currently busy with it, and it seems to be providing a good grounding in basic geology, the water cycle, and life’s impact on the climate of earth.

Finally, because I am still completely obsessed:

Introduction to the Arctic: Climate from the University of Alberta is the first of a planned series of MOOCs about the Arctic. It deals with the various environments that make up the Arctic, how climate systems operate there, and the impacts of climate change on this sensitive region. If you do this one, I suggest playing the lecture videos at 1.5x speed to preserve sanity.

The Changing Arctic from Tomsk State University also deals largely with climate and climate change as it relates to the Arctic. The supplementary material is outstanding, and the course uses the work of scientists to tell stories that shed light on Arctic issues. This course comes highly recommended.

Some of these courses have set start dates; you can either enroll and wait for the date to roll around, or, if the next starting date is undetermined, sign up to be notified when it is announced. Other courses are self-paced, so you can sign up whenever you want to and work at your own pace. Coursera has a fantastic app that functions extremely well (at least on my iPad) for learning on the go.

Coursera is not the only provider of MOOCs – I’ll share some others in a later post.