Showing posts with label isopod. Show all posts
Showing posts with label isopod. Show all posts

Monday, 27 July 2015

Its all happening under the pier

The Safari spotted a most welcome returnee on the drive up the hill, the Peregrine was back on the tower after an absence of several months.
Our planned whale and dolphin watched was totally scuppered by the weather, visibility in the totally dreek conditions was only a few hundred yards. But after that we had an event for young children and their parents on the beach up by the pier. While we waited for them to arrive the weather started to clear a bit. They arrived in dribs and drabs and as we waited for the last few to arrive we chatted to the others and it wasn't long before the subject of killer gulls came up. There were some concerned parents of not much more than toddlers in the group - they've really believed the Daily Fail's rubbish - and here we were stood around with at least 50 of the ravening feathered monsters hanging around.
We told them about the different species found on our beach - more than the whole of Australia - and how the lessening amount of brown showed how they aged. We pointed out the Black Headed Gulls brown heads and looked at the silvery mantle of the Herring Gulls but then noticed one of them wasn;t quite 'right', far too dark but not a Lesser Black Back Gull either. It was (possibly) the long staying Yellow Legged Gull that's been hanging round here for a few years.
Once on the beach and now not worried about any species of gull no matter which they started their beachcombing. Being little ones we'd told them not to touch any jellyfish, it wasn't long before the shout of "jellyfish" went up for along the beach. Oh my it was a real whopper! A Lion's Mane Jellyfish nearly a metre across the widest visible tentacles. 
The beach wasn't over-exciting so they wandered down under the piers where there are pools of water around the legs. Minutes later the firsts small Green Shore Crabs and Brown Shrimps were in the pots. What we hadn't realised was there were quite a lot of Sabellaria 'reefs' amongst the piles.
This wasn't the best find of the day though. One of the little ones caught something quite unusual, some kind of Isopod the like of which we've never seen before. It was very thin about a centimetre long with a pair of long antennae almost as long as the body. Wish we could have been able to get a pic. We have our marine biologist friend DB on the case, wonder what she'll be able to tell us tomorrow.
All good stuff!
Where to next? More sea staring - weather permitting
In the meantime let us know what's amongst the piles in your outback.


Tuesday, 31 July 2012

Two new to 'science'

The Safari saw the sea was almost flat calm this morning and could hardly wait to get the scope out. Unfortunately there wasn't much doing, a distant Grey Seal and a dozen Gannets was all we could muster.
At lunchtime we must have had the best part of a 100 whale and dolphin watching helpers most of them children too small to see over the wall. A/the Grey Seal was no much closer, only yards from the wall,  but playing hard to get by only popping up for seconds before disappearing beneath the tiny waves for long minutes at a time. Distantly we had about 150 Common Scoters but they too were hard to get the multitudes on to.
All the while Sandwich Terns mooched about some quite close in but these probably looked too much like 'seagulls' to be 'interesting', a few Common Terns were in the mix too.
We managed to wangle a pic of yesterday's dead Harbour Porpoise off AB's phone but the injury marks are inconclusive, the large square graze in front of the dorsal fin could have been made as the carcass rubbed on the sand as it washed in...always sad to see them like this though.

After the watch we had a quick lunch while the hordes descended on to the beach. This is jut some of them...

 And some more...we've never had to entertain so many before!
All those eyes nets were bound to find something interesting...and they did.
A nice but small Compass Jellyfish.

After hundreds of Brown Shrimps, several Common Prawns and a few Sand Gobies were identified the less numerous species came to light, tiny 'new born' Blennies, the smallest Green Shore Crabs you ever did see and a Lion's Mane Jellyfish.
And then the biggies appeared, first up a Chiton, apparently there were a fair number in one pot - never seen one before and told Monika a while ago we didn't get them on our shoreline = ooopps!!! Being an American hers was far larger than ours!
Which species? One for iSpot we think!
Then in one of the trays we saw a little white thing like a piece of white plastic but it was swimming. We're pretty sure it's an Isopod; another for iSpot!

This is how it swam round, like a folded upside-down paper dart, flicking out those paddle-like legs.
A fascinating day on the beach was topped by the discovery of Gammerid type shrimps, very similar to the freshwater shrimps that swim on their sides and not at all like the Brown Shrimps.
All this new stuff was due to the fact we were looking in a slightly different place along the wall, the tide had left runnels too deep for the small children to cross in our usual places - thanks very much Mr Tide you've played a blinder!
Where to next? More flat calm sea we hope.
In the meantime let us know what's waiting to be discovered in your outback.