Sunday, January 24, 2010

Four go to the beach - 23rd December




We had an afternoon off yesterday. As many of the chicks have fledged and the nest checking takes much less time these days, if we work hard in the mornings there is less to do in the afternoon. So we took the spare time in the afternoon to go paua hunting in Thinornis Bay. Even though we got there just before low tide, the waves were huge, due to the gale-forced winds during the previous few days. The pauas are big in Thinornis Bay. I’ve never seen paua this big before on the mainland. But as no one except researchers land here on Rangatira, they aren’t fished and have plenty of time to grow.


When we collect them, we get only a few and this leaves a population of adults around to keep the generations going. Paua have planktonic larvae, which means that the larvae get carried around in the ocean current, and it’s possible that the larvae can chemically detect areas of rock that are covered with seaweed to settle on. Seaweed is a paua's favourite food. You can find all three of NZ’s paua species here but we were looking for the black- footed paua. There is a commercial fishery for paua in the Chathams with the meat selling for about $100 per kg! And we’ve all seen their shells in tourist shops and probably have some at home too. They are a valuable resource for the Chatham Islands.


The rock pools here are relatively shallow and quite high up the beach too, so finding paua isn’t something which is necessarily going to get you wet and mucky. That is except for today when the waves were cranking in, covering the rocky platform which a few days ago I was walking around with no fear of wet boots.



The sea can be like that. One day it looks benign and as though you’d love to go for a dip, and the next only the local seals feel comfortable surfing in the waves. But we were careful and triumphantly carried back enough paua for a small feast.

3 comments:

  1. Hi there, I'm really enjoying the stories and pictures you all post here. I'd like it even better though if the person (or people) writing each post signed their name(s) as the end, because you often say "I" or "we" but not who is speaking. Using names would make these stories more personal and engaging.

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  2. Glad you are enjoying the blog, thank you.
    At the moment the posts being put up are written by Sophie Fern, the science communicator who went to Rangatira Island on behalf of Science Outreach. All the susubsequent posts will be from her too. Sophie took over from Alex Sides at the beginning of December. "We" refers to the whole team of researchers and assistants who were on the island at the time.

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  3. Hi, is that Sophie? My point wasn't about needing to know your identity, but just about making the posts slightly more personal. If James Herriot had signed his stories "Yorkshire Dales Veterinary Practice" instead of his name, they would have been much less engaging.

    If a story has a clearly identified narrator it immediately draws the reader in. It doesn't matter if the name is real or a pseudonym, it makes the story easier to relate to.

    Just a suggestion.

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