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Phytoplankton and Penguins

Phytoplankton are perhaps the most important group of organisms on our planet. They are microscopic, single-celled galaxies that come in many different shapes and sizes. They are the movers and shakers of our marine ecosystems that transfer energy into food webs. Without them, there would be no krill, fish, penguins, seals or albatrosses. Basically, phytoplankton use nutrients from the water and, together with sunshine, create energy (via photosynthesis) that enables them to grow and multiply. When conditions are just right, phytoplankton are capable of erupting into enormous blooms. Below is a satellite image of a phytoplankton bloom associated with upwelling along the edge of a meso-scale eddy north of South Georgia: The focus of my PhD is all about understanding the at-sea movements of two penguin species from Marion Island (the larger of the Prince Edward Islands). Because these penguins feed on krill, and krill feed on phytoplankton, peng...

The Jumping Spider and the Ant

A few weeks ago I was admiring the veggie patch behind our house when I noticed the red pepper plant had a leaf with another stray leaf resting on it. I gave it a tug but it was fastened solidly. I decided to peel away the front and have a look to see who was living inside. I often see jumping spiders prowling through the garden, but I hardly ever see them doing more than that. Their world is so miniature, and so its really special when you happen to meet them at an interesting moment. Two weeks later, a little jumping spider had caught a common house fly just one plant down from the red pepper. He wasn't actively eating it, but just holding onto it, waiting. I then glimpsed a tiny ant making its way up the stem towards the spider. When it approached, the spider, who had been rather still, shuffled to the end of the leaf with the ant hot on its heels. Just as the ant was about to make contact, the spider suddenly rappelled down to a lower leaf along a thin stra...

Spring Flowers

Every September the West Coast explodes into the most amazing colours. Knowing this, Jem and I decided to take a day trip up to Posberg Flower Reserve (West Coast National Park) to soak it all in. I get the same stoked feeling every time I see the flowers and always end up in such awe that a phenomenon like this isn't staged by some supernatural force. Fields and fields of flowers unfurled to the sun, flaunting their saturated petals at buzzers-by. Monkey beetles, flies, wasps, bees and countless other critters whizzing from inflorescence to inflorescence spreading pollen throughout these floral metropolises. The insects are followed by the birds... and so many of them! This truly is a time for the birds and the bees; pollination at its best.

Home

It's always great to take the time to step back from it all and think about the place you call home. Here's a short film  Lauren de Vos  and I made about the beautiful and diverse place that we call home.

Oil spill in Goukamma Nature Reserve

On the 9th of August a German owned vessel, the Kiani Satu , was on its way from Cape Town to Gabon when it ran aground in Goukamma Nature Reserve and Marine Protected Area. The 168 m long vessel was carrying 15 000 tons of rice and 330 tons of fuel oil. Following the event someone remarked: "While there is no current threat to the environment, we hope the ship is towed off soon before this turns into another Seli 1." Since then oil has been leaking out of the vessel which has washed up on beaches and even entered the Goukamma estuary. The damages to local sandy beach and rocky shore ecological systems are likely to be massive, and already there have been incidences of birds completely covered in oil. The oil also threatens our valuable estuaries, which are integral to providing refugia for juvenile fish and are also home to the world's only populations of the Knysna seahorse. Unfortunately, oil has already breached the Goukamma estua...

Dungeons!

In a twist of oceanographical fate, a five metre swell with an 18 second period surged over one of the world's most beautiful big wave reefs. Twiggy Baker, John John Florence, Albee Layer, Frank Solomon, Mike Schlebach, Andy Marr, Simon Lowe and others were there to harvest the stoke. Huge thanks to Steve Benjamin from Animal Ocean for taking me out there! Check out the video I filmed and edited  here .

Cape Town Fog

It was Friday the 24th of May and the fog on the Atlantic seaboard was heavy. Steve predicted it would roll into the city and into Camp's Bay, so we headed up the mountain to search for a fresh perspective of our beautiful city. True enough, as the sun set and the land cooled, the fog rolled in boisterously under the full moon and the city disappeared. Cape Town - I love this city from Otto Whitehead on Vimeo .

Robberg Nature Reserve

Rock Kestrel

Once upon a time there was a pair of rock kestrels that bred at Dias Beach in the reserve. That time is now and this season they laid four eggs (Anthony Van Zyl; pers. comm.). Last week I was lucky enough to glimpse one of the youngsters (photo below) all grown up and munching on a black girdled lizard (which are often seen sunbathing on the rocks). Note: adults have grey head feathers whereas this is absent in the juveniles.

Islands

'These are islands in time - with nothing to date them on the calendar of mankind. In these areas it is as though a person were looking backward into the ages and forward untold years. Here are bits of eternity, which have a preciousness beyond all accounting.' Harvey Broome (1902-1968)

The Woods

'I went to the woods because I wished to live deliberately, to front only the essential facts of life, and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived.' Henry David Thoreau (1817-1862)          

Bain's Kloof Pass

My Thursdays don't usually involve ravines, but I'm so glad this one did. Bain's Kloof is a beaut, with a delicious stretch of rapids, waterfalls and natural pools, it's a biophilic's haven for adventure. When hopping from rock to rock the pools appear as pale cups of rooibos inviting one in for a sip, and as you venture below bearing a mask and snorkel, an emerald green universe beams hello. Little redfins swim about with curiousity, 'What's this strange creature doing in our pool?'. I was really impressed with the health of this stretch of the Witte River and the communities it supports. Submerged pebbles and boulders were teeming with sensitive invertebrates, such as stonefly larvae and leptophlebids. We watched with fascination as stoneflies rested momentarily on the water's surface, only to be gobbled up by the alert redfins below. Frogs croaked upstream whilst those nearer to us splashed into the water to hide away. Dragonflies whizz...

For the love of Wilderness

Rachel Carson once wrote, Those who contemplate the beauty of the earth find reserves of strength that will endure as long as life lasts. There is symbolic as well as actual beauty in the migration of the birds, the ebb and flow of the tides, the folded bud ready for spring. Bontebok at Olifantbos. I have always been drawn to wild places and its creatures, to regularly rediscover those eternal reserves of strength that feed my life inspiration, and thus I am extremely grateful to live in a place where on any given day I can easily find sand between my toes or immerse myself in the sweet honey smell of fynbos. Cape Town is one of few cities with such incredible wilderness areas right on its doorstep. An unknown spider munches away at a snail. Fish Hoek. My good friend Lauren De Vos and I recently embarked on an adventure to capture the beauty of False Bay in the hope that it will remind others just how lucky we are to live here. Together with underwater visual...