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AG_1212_SANCCOB_Penguins

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AG_1212_SANCCOB_Penguins

  1. 1. 54 A F R I C A G EO G R A P H I C • D EC E M B E R 20 1 2 55W W W. A F R I C AG EO G R A P H I C .CO M SANCOBB PORTFOLIOSANCCOB PORTFOLIO It may come as something of a shock to those of us who’ve visited the penguin colonies just outside Cape Town to learn that these endearing birds face a daily battle for survival. With their numbers in precipitous decline, photojournalist Cheryl-Samantha Owen explains what is going wrong, who is working to put it right, and what we can do to help. TEXT & PHOTOGRAPHS BY CHERYL-SAMANTHA OWEN SO LONG, ᮣ and thanks for taking all the fish…
  2. 2. 56 A F R I C A G EO G R A P H I C • D EC E M B E R 20 1 2 57W W W. A F R I C AG EO G R A P H I C .CO M SANCOBB PORTFOLIOSANCCOB PORTFOLIO Scientists worldwide have linked fluc- tuations in the numbers of fish in the sea around seabird colonies to their suc- cess in producing and rearing future gen- erations. Unfortunately for African pen- guins, these endemic birds share our appetite for sardines and anchovies, and compete directly with both South Africa’s and Namibia’s commercial fish- eries. Throughout the 1950s sardines were fished off South Africa’s west coast at an increasing and unsustainable rate until the annual catch peaked at around 400000 tonnes and the stocks collapsed. By the 1990s the fish had made a come- back, a result linked to conservative management practices. Then in 2001 the sardines disappeared completely, surfac- ing to the south and east, and leaving the seabird colonies along the west coast hungry again. The oceanography of the west coast’s Benguela Current is highly complex, and scientists have put forward two main fac- tors that could be responsible for the fish’s eastward shift. First, intensely localised fishing pressure along the west coast could have depleted this part of the population, causing another sardine crash. Second (or in combination), an increase in sea surface temperatures in other parts of the ocean is thought to have changed the distribution of small pelagic fish. It looks as though the humble anchovy and sardine have not escaped the effects of our soaring carbon emissions. Seabirds along the west coast rely on the greater Benguela Current for the rich banquet of life that it provides, but scientists have observed that the current is changing. Its edges are warming and its route has moved further offshore, which means that the penguins have to travel further to reach their prey. An African penguin’s fishing expedition is limited to about 20 kilometres from its colony dur- ing breeding season and when the fish aren’t there, its chicks starve. South Africa’s northernmost colonies have suffered the worst. As the sardines relocated, the populations of African penguins at Lambert’s Bay, Malgas and Marcus islands packed up too. ‘Breeding adults are site faithful, so they will try to return to breed at a site even if feeding conditions get quite poor,’ states Sherley. It is a sad ending: failing to find enough food, the birds cannot survive through the moulting season. L ife at sea is not as easy as it once was either. Today, some parts of the ocean are afloat with more plastic than plankton and more globules of oil than octopus. Heading across the bay from Cape Town’s bustling waterfront with our five squawking boxes in tow, I watched as plastic bags disguised as jellyfish drifted past the boat and a rainbow-coloured sheen crept across the surface. No wonder the penguins were hesitant about returning to life in the wild. Few people living in South Africa in 2000 will forget the wreck of the Treasure, which affected 19 000 African penguins when it lost more than 1 000 tonnes of fuel oil near Robben Island. But oil pollu- tion is not confined to large spills. Passing ships that illegally dump contaminated bilge and ballast water ensure that SANCCOB has a never-ending stream of oiled seabirds to care for. The honking duet of the penguin pair’s tone-deaf donkey brays reminds me of the title first given to these Dr Seuss-like creatures: jackass penguins. But, as they leap into the sea, it is their scientific name that springs to mind – Spheniscus demersus or ‘plunging wedge’. An unlikely candidate for ‘canary in the coalmine’ status they may seem, but these seabirds are indeed critical indic- ators of ocean health. If we don’t protect the African penguin before its flightless plummet catches up with that other poster bird of extinction, then we risk losing far more than a comical, endear- ing endemic bird. T wo African penguins teetered on the edge of their cargo box. Faced with the blue yonder, they seemed doubtful about returning to their natural element. I had already plunged off the ship and was waiting in Table Bay’s murky, ice-cold waters to freeze- frame their freedom jump. A few seconds later, with some cajoling by a volunteer from the Southern African Foundation for the Conservation of Coastal Birds (SANCCOB), they were submerged, and two fat black-and-white and cerise-painted torpedoes streaked through the water. They were the first two of seven African penguins and one Cape gannet that were released back into the ocean near South Africa’s Robben Island (an appropriate place for such an occasion) that afternoon. Some had been rescued as chicks from near starvation in wild penguin colonies in the Cape; others were found washed up, weak and exhausted. Many were suffocating under a thick wrapping of black oil. The history of how and why the seabirds arrived here deserves to be told, as it is indicative of the global environmental changes that are taking place around us. Unique to southern Africa, the popula- tion of African penguins has plummeted by more than 95 per cent since the turn of the 20th century. If African penguins could tap out a tune, I fear it would be a blues refrain, lamenting their struggle to find enough fish to feed themselves and their offspring, and the tidal wave of pollution they have to ride every day. Perhaps a few would even bray about the days when egg collectors invaded their nests and guano diggers scraped clean the white gold (guano) that coated their breeding hab- itats, removing vital layers of burrowing material. Though these practices were banned in 1967 and 1991 respectively, they had already delivered the first big blow to the penguin population. In 1910 there were more than 1.5 (pos- sibly three) million African penguins. Today fewer than 26 000 pairs waddle stiff- legged along beaches in Namibia and South Africa, and their place on the IUCN Endangered list means that your last chance to see wild penguins in Africa may arrive within the next 50 years. S wallowed up to the armpit by thick coastal scrub, Cuan McGeorge gently rummages in the undergrowth for a penguin chick that he’s had his eye on. As the warden of the Stony Point Nature Reserve, about an hour outside Cape Town, McGeorge monitors the condition of chicks in the penguin colony and knows exactly which ones are growing fat and fluffy and those that are not. The ones in poor condition are quite often abandoned chicks, which are sent to SANCCOB to be hand-reared. McGeorge explains, ‘Late breeders often start to moult before their chicks can fend for themselves, and since a moulting pen- guin cannot swim the youngsters would starve to death without help. It isn’t easy deciding whether to remove a chick from the colony – meddling with nature can have repercussions we don’t understand.’ With the weak chick safely tucked under his arm, he talks to onlooking tourists about the perils seabirds face, and how we have already interfered with nature. ‘In the race to save a species,’ he says, ‘this life counts.’ Why the breeding and moulting sea- sons are not perfectly synchronised, scien- tists cannot explain, but Stony Point is the only colony with a population that has increased substantially (from about 110 to 950 breeding pairs) since 2001. ‘It’s complicated,’ says Richard Sherley, a biologist at the University of Cape Town who studies penguins on Robben Island, ‘but the species’ free fall is the result of a range of pressures, there isn’t one simple explanation.’ The end of African penguins is tangible. The last breeding pair disap- peared from Lambert’s Bay in 2006, and the colonies at other locations are hang- ing on by their webbed toes: the Boulders Beach colony has dropped from 1 054 to 444, Robben Island’s from 8 000 to 1 800 and Dassen Island’s from 25000 to 4 000, and all within the past 10 years. The dan- gers to them – overfishing, climate change and pollution – are not as clearly defined. Help to save our seabirds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the species’ free fall is the result of a range of pres- sures, there isn’t one simple explanation SOUTH AFRICA NAMIBIA BREEDING COLONIES OF AFRICAN PENGUINS MOZAMBIQUE Cape Town Cape TownLüderitz Walvis Bay Port Elizabeth Extant colony Extinct colony De HoopDyer Is. Dyer Is. Geyser Is. Stony Point Boulders Beach Seal Is. Robben Is. Dassen Is. Marcus Is. Seal, Stag & Bird Is. Jahleel, St Croix & Brenton Is. Malgas Is. Jutten & Vondeling Is. Lambert’s Bay Ichaboe Is. Halifax & Penguin Is. Plumpudding & Sinclair Is. Mercury Is. Oyster Cliffs Neglectus Is. Possession Is. Pomona Is. Sylvia Hill Hollamsbird Is. N !" ABOVE After fishing expeditions African penguins return to the rocky shore, though fierce Atlantic waves sometimes force them to dive back in again. ᮣ
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`$-"(&"2&$(;-',"1<'+/*?"(;-"%&%$8*(+&,"&<"" 1<'+/*,"%-,=$+,2";*2"%8$::-(-0"A9":&'-"(;*,"IL"%-'"/-,("2+,/-" (;-"($',"&<"(;-"RG(;"/-,($'95"V;+2"WA8$-D"3*2"a$7-,+8-"%-,=$+,2?" B;+/;";*7-"*"A8$-"2;--,"(&"(;-+'"<-*(;-'2?"*'-"/*88-04"+2"&,"(;-" '&*0"(&"'-/&7-'9"(;*,@2"(&"(;-"/*'-"+("'-/-+7-0"*("#1NOOPQ5" FN#6V""E-B"%-,=$+,2"*("(;-"<*/+8+(9"'-*0+89"(*@-">2;"3(;&2-"(;*("" 0&"*'-"@,&B,"*2"W<'--"<--0-'2D4?"2&":&2(",--0"(&"A-"<&'/-"<-05 ᮣ 58 A F R I C A G EO G R A P H I C • D EC E M B E R 20 1 2
  4. 4. ABOVE""b;-,"F"%;&(&='*%;-0"(;-"'-8-*2-"&<"(;-2-"(B&"%-,=$+,2?"F"/&$80,D(";-8%"A$("+:*=+,-"(;*("(;-9"B-'-"2*9+,="" Wc&$">'2("[D5""b*(/;+,="(;-+'"2%8+(2-/&,0";-2+(*(+&,?"F"B&,0-'-0"B;-(;-'"(;-9"B-'-"`$-2(+&,+,="(;-"B+20&:"&<"'-($',+,=" (&"2$/;"*"%&88$(-0"2-*5" OPPOSITE, ABOVE""]*(;-'+,="(;-"('&&%2"*<(-'"*"2B+::+,="2-22+&,"+2",&("*2"2+:%8-"*2"+("8&&@2?"*,0"%-'2$*0+,="%-,- =$+,2"(&"8-*7-"(;-"B*(-'"&<(-,":-*,2"=&+,="<&'"*"0+%"9&$'2-8<5 OPPOSITE, BELOW""WVB+,@8-2D"B*2"'-:&7-0"<'&:"*"B+80"%-,=$+,"/&8&,9"*<(-'"(;-"#1NOOPQ"7-(",&(+/-0";-'";$,/;-0" A*/@"*,0"B*,(-0"(&"%'-7-,("(;-"A*0"=-,-"<'&:"%*22+,="(&"(;-",-d("=-,-'*(+&,5""18(;&$=;"2;-",--02"*";-8%+,=";*,0"(&" B*8@?"2;-"+2"8+@-"*">2;"+,"(;-"B*(-'5 60 A F R I C A G EO G R A P H I C • D EC E M B E R 20 1 2 SANCOBB PORTFOLIOSANCCOB 60 A F R I C A G EO G R A P H I C • N OV E M B E R 20 1 2 ᮣ 61W W W. A F R I C AG EO G R A P H I C .CO M
  5. 5. 62 A F R I C A G EO G R A P H I C • D EC E M B E R 20 1 2 SANCOBB PORTFOLIOPORTFOLIO ABOVE""1<(-'"*A&$("e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a$0=-:-,("/*882"*A&$(" B;-(;-'"(&"+,(-'<-'-"&'"8-(",*($'-"(*@-"+(2"/&$'2-5 62 A F R I C A G EO G R A P H I C • D EC E M B E R 20 1 2 6 3W W W. A F R I C AG EO G R A P H I C .CO M

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