Animals, Australia, Beach & Coastal Walking
Comments 12

The Farthest Shore

People often talk about what a thriving and diverse ecosystem the intertidal or littoral zone is, but I’m just as struck on my coastal wandering by what a realm of death the strip between the low- and high-water marks can be.

One of the triggers for an instant flashback to my childhood is the odour of banks of rotting seaweed deposited along the upper edge of the tide’s advance. Throw in some deceased fish, beached molluscs, the odd unfortunate seabird and mix it all up in a heady mulch of driftwood, putrefying jellyfish and millions of decaying mangrove seedpods, and there you have it: the Smell of Summer.

A whiff of Aerogard or Rid — the spray-on insecticides favoured Down Under — and perhaps a salubrious coating or two of sunscreen, might take some of the edge off this seaside incense, but overall we who live or lived near a real (rather than TV or resort) beach know it’s not all a monoculture of (often imported) coconut palms and a sterile infinity of white sand. It’s far messier and more interesting than that. Our dogs used to think so too, and would often enjoy a nice roll in some fragrant flotsam so that they could bring the perfume home to share with us.

To date the biggest dead thing I’ve found deposited on a beach is a whale — or a vertebra thereof, bleached and ancient-looking, tossed up among the beds of weed and sticks on a wild beach in southern Tasmania. It now takes pride of place in an assortment of walking memorabilia slowly taking over Kate’s place in the States.

mmm

A scanned film picture of my treasure from the South Coast Track, Tasmania, 10 years or so ago.

There was also a dolphin on my last Moreton trip…

dead dolphin moreton island

..but it wasn’t exactly ready for exhibition.

I’ve had a lot more “luck” with sea turtles. The very tolerant/bewildered Kate has made space also for a turtle breastplate I brought home (and transported at great expense) from a Moreton Island trip. Old bones can be beautiful things, once sea, sun, salt and time have played their part in making them presentable.

According to the World Wildife Fund, six of the world’s seven species of marine turtle occur in Australian waters. On Moreton Bay you might see a bony head bob above the surface, but apart from divers, most of us on the coast see little more of them than that. But with their beached remains after death, I’ve had a lot more luck.

A Moreton trip usually means finding one or two, but on one walk round the island I came across four, enough to make me worry that an epidemic or other catastrophe might be to blame. That adventure was shortly after serious flooding in Brisbane, and there was some talk of pesticide run-off being a factor in turtle die-off. (I also recall a meeting with a ranger on Moreton who described seeing from an aircraft dozens of live ones in the waters offshore, which was reassuring.)

Apart from old age, illness and predators, I’m sure collisions with boats and ships account for a large percentage of the casualties. A fully grown marine turtle is enormous, and even in death they make an impressive sight. The really old ones (they can apparently enjoy roughly humanoid longevity), their shells battle-scarred and encrusted with barnacles, make a particularly arresting sight, and they’re visible from a long way off.

A few veterans on their last trip ashore:

mmm

mmm

mmm

mmm

dead turtle moreton island

The littoral zone is in constant flux, and even here in the relatively sedate Bayside suburbs of Brisbane, the tide can deposit treasures or artefacts that flavour even a well-stomped walking route with a potential to surprise. Yesterday I came upon a big and not-long-dead turtle deposited at the ever-eroding base of Shorncliffe.

Journey’s end for this gentle and charismatic ocean voyager:

mmm

mmm

~ And that’s all the Goat wrote

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12 Comments

  1. Interesting that you should write about dead sea turtles. When I lived at Hervey Bay for 7 in my teens I never saw a dead turtle on the beach. Many years later when living out west I took the kids back the bay on two holidays. On both occasions we saw dead bloated turtles. It was very concerning.

    We also enjoy bones/skeletons. When the children were young they would put small dead creatures onto large meat ant nests. The ants would do a great job of “cleaning” up the fleshy parts and after further drying, we’d have great classroom specimens. Whale bones were pretty rare in the outback though… 😉

    • Even a few pretty decent tides and some choppy seas have not yet dislodged this one — and it’s getting more fragrant by the day. Must admit I’ve toyed with the image of a huge turtle skull on the bookshelf — the logistics are pretty daunting, though!

  2. I saw something about the mass turtle deaths on TV over here.
    The theory given was that flooding caused the destruction of seaweed growths, leaving the turtles prone to starvation and / or infection in their weakened state.
    I wouldn’t be counting out pesticides etc. from the equation, however.

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