Blue whiting
- Group
- Fish
- Peak month
- November
- Records since 2000
- 34,871
Described in 1827
56 species
Willow Tit
- Group
- Birds
- Peak month
- January
- Records since 2000
- 16,511
Oxydromus flexuosus
- Group
- Worms (annelids)
- Peak month
- June
- Records since 2000
- 4,148
Elliptic trough shell
- Group
- Molluscs
- Peak month
- July
- Records since 2000
- 3,679
Golfingia vulgaris
- Group
- Other invertebrates
- Peak month
- April
- Records since 2000
- 2,595
Narrow-winged Grey
- Group
- Butterflies and moths
- Peak month
- September
- Records since 2000
- 2,406
Sea Lemon
- Group
- Molluscs
- Peak month
- August
- Records since 2000
- 2,152
Thracia villosiuscula
- Group
- Molluscs
- Peak month
- July
- Records since 2000
- 1,715
Lesser Blackclock
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 1,299
Agonum emarginatum
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 1,006
Melosira varians
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 956
Elegant Cuttlefish
- Group
- Molluscs
- Peak month
- March
- Records since 2000
- 916
Arctic Paperbubble
- Group
- Molluscs
- Peak month
- June
- Records since 2000
- 875
Bembidion mannerheimii
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 850
Jaapiella veronicae
- Group
- True flies
- Peak month
- August
- Records since 2000
- 742
Dicheirotrichus placidus
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 600
Microlestes maurus
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 594
Stenus bifoveolatus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 557
Heath Rustic
- Group
- Butterflies and moths
- Peak month
- September
- Records since 2000
- 495
Aplotarsus incanus
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 454
Dinocras cephalotes
- Group
- Stoneflies
- Peak month
- April
- Records since 2000
- 442
Anaspis rufilabris
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 437
Chelon ramada
- Group
- Fish
- Peak month
- October
- Records since 2000
- 403
Dyschirius tristis
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 367
Thicklip Mullet
- Group
- Fish
- Peak month
- September
- Records since 2000
- 331
Calathus erratus
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 319
Octotemnus glabriculus
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 269
Anoplius infuscatus
- Group
- Bees, wasps and ants
- Peak month
- July
- Records since 2000
- 264
Small Tiphia
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 225
Philorhizus notatus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 209
Pyrgiscus crenatus
- Group
- Molluscs
- Peak month
- July
- Records since 2000
- 202
Trixagus obtusus
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 196
Protapion ononidis
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 142
Eudonia murana
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 140
Bembidion saxatile
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 136
Cystiphora sonchi
- Group
- True flies
- Peak month
- August
- Records since 2000
- 121
Sericoderus lateralis
- Group
- Beetles
- Peak month
- October
- Records since 2000
- 114
Stenus carbonarius
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 108
Astarte elliptica
- Group
- Molluscs
- Peak month
- October
- Records since 2000
- 107
Ennearthron cornutum
- Group
- Beetles
- Peak month
- July
- Records since 2000
- 101
Mediterranean Shearwater
- Group
- Birds
- Peak month
- July
- Records since 2000
- 96
Stenus canaliculatus
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 92
Planolinoides borealis
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 90
Anthobium atrocephalum
- Group
- Beetles
- Peak month
- April
- Records since 2000
- 87
Corticarina similata
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 85
Corticaria crenulata
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 82
Gonatopus clavipes
- Group
- Bees, wasps and ants
- Peak month
- August
- Records since 2000
- 69
Mordellistena parvula
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 65
Cylichna alba
- Group
- Molluscs
- Peak month
- July
- Records since 2000
- 64
Scymnus femoralis
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 60
Amara praetermissa
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 59
Omalium laeviusculum
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 58
Malacoceros vulgaris
- Group
- Worms (annelids)
- Peak month
- May
- Records since 2000
- 55
Oulimnius troglodytes
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 54
Monotoma longicollis
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 52
A ground beetle
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 51