BioBlitz Battle Report - BRPC Menai Bridge October 2026

Cover image

Content

You can view all the wildlife recorded at this event on iNaturalist.

Overall Results

Records 147
Species 88
Verified species 67
Observers 10
Potential score 2,540
Confirmed score 1,388
Top verified species Catriona aurantia
Top species rarity score 200
Registered participants 28
Children attending 1

Team results

Congratulations to Jinaturalist for taking the gold medal in this BioBlitz Battle! And well done to everyone for a great game and some fantastic wildlife finds.

Team Records Potential Score Confirmed Score
Jinaturalist 79 786 751
Goat Emoji Jpeg 6 395 395
Bald Cap 14 90 87
Super really cool rock pool guys 9 73 64
The Cult 5 36 35
Pheonix 2 23 23

Individual results

Participant Records Potential Score Confirmed Score
Isaac Mawer 33 473 458
unorthodox_sketch 6 395 395
Will 36 396 366
Harrison Usher 10 166 101
evefraj 9 73 64
tbs26txp 11 61 61
nina_03 5 36 35
Pheonix_M 2 23 23
Jay 1 16 16
millie_cath 2 13 13

Top species found

A total of 5 species have a verified rarity score of 55 or higher.

Catriona aurantia
Rarity score: 200
Discovered by: unorthodox_sketch
Bluff oyster - Ostrea chilensis
Rarity score: 88
Discovered by: Isaac Mawer
Black Limapontia - Limapontia capitata
Rarity score: 75
Discovered by: unorthodox_sketch
Alder's Seaslug - Alderia modesta
Rarity score: 72
Discovered by: unorthodox_sketch
Cryptopleura ramosa
Rarity score: 55
Discovered by: Will

BioBlitz Battle team

Loved your BioBlitz Battle? There's more to explore!

Dive deeper into the world of rock pooling, discover upcoming events, and share your finds with our growing community.
Visit us at: www.therockpoolproject.co.uk
Check out our upcoming events: www.therockpoolproject.co.uk/events

Event species list

Community verified records only

Click any image to view the taxon on iNaturalist.

Name Rarity Score
Catriona aurantia 200
Bluff oyster - Ostrea chilensis 88
Black Limapontia - Limapontia capitata 75
Alder’s Seaslug - Alderia modesta 72
Cryptopleura ramosa 55
Elachista fucicola 53
Haliclona cinerea 42
Hooded Shrimp - Athanas nitescens 33
Goosebump Sponge - Dysidea fragilis 32
ladder ascidian - Botrylloides leachii 28
Keyhole Bryozoan - Cryptosula pallasiana 28
Marsenia perspicua 28
Painted Goby - Pomatoschistus pictus 25
Harmothoe 24
Aeolidia filomenae 20
Anurida 20
Northern cowrie - Trivia arctica 20
Rock Goby - Gobius paganellus 19
Dead Man’s Fingers - Alcyonium 18
Side-gilled Seaslug - Berthella plumula 17
Five-bearded Rockling - Ciliata mustela 16
Rock Gunnel - Pholis gunnellus 16
Long-clawed Porcelain Crab - Pisidia longicornis 16
Blow Lugworm - Arenicola marina 15
Sycamore Aphid - Drepanosiphum platanoidis 15
Bread-crumb Sponge - Halichondria panicea 15
Common Prawn - Palaemon serratus 15
Beaked Barnacle - Austrominius modestus 14
Sand Mason Worm - Lanice conchilega 14
Great Scallop - Pecten maximus 14
Spiral Tube Worms - Spirorbinae 14
Star Tunicate - Botryllus schlosseri 12
crumb-of-bread sponge - Hymeniacidon 12
Flat Periwinkle - Littorina obtusata 12
Christmas Tree Worms - Spirobranchus 12
Pacific Oyster - Magallana gigas 11
Common Brittle Star - Ophiothrix fragilis 11
Mites and Ticks - Acari 10
Grey Mail-shell - Lepidochitona cinerea 10
Spiny Spider Crab - Maja brachydactyla 10
Channelled Wrack - Pelvetia canaliculata 10
Lined Top Shell - Phorcus lineatus 10
Hairy Porcelain Crab - Porcellana platycheles 10
Broadleaf Sea Lettuce - Ulva lactuca 10
Amphipods - Amphipoda 9
Common Sea Star - Asterias rubens 9
Cushion Star - Asterina gibbosa 9
Common Cockle - Cerastoderma edule 9
Blue Mussel - Mytilus edulis 9
Common Hermit Crab - Pagurus bernhardus 9
conifers - Pinales 9
Purple Topshell - Steromphala umbilicalis 9
Gutweed - Ulva intestinalis 9
Great Egret - Ardea alba 8
Knotted Wrack - Ascophyllum nodosum 8
Edible Crab - Cancer pagurus 8
Saw Wrack - Fucus serratus 8
bladder wrack - Fucus vesiculosus 8
European Shag - Gulosus aristotelis 8
Grey Seal - Halichoerus grypus 8
Shanny - Lipophrys pholis 8
Common Periwinkle - Littorina littorea 8
Atlantic Dogwhelk - Nucella lapillus 8
Common European Limpet - Patella vulgata 8
Grey Heron - Ardea cinerea 7
European Green Crab - Carcinus maenas 7
Enthemonae 4