Sphondylothamnion multifidum
- Peak month
- August
- Records since 2000
- 150
- Group
- Seaweeds and algae
Cladophora Ball
- Peak month
- July
- Records since 2000
- 148
- Scientific name
- Aegagropila linnaei
Gymnogongrus crenulatus
- Peak month
- September
- Records since 2000
- 148
- Group
- Seaweeds and algae
Lychaete pellucida
- Peak month
- September
- Records since 2000
- 148
- Group
- Seaweeds and algae
Ulva flexuosa
- Peak month
- September
- Records since 2000
- 148
- Group
- Seaweeds and algae
Caulacanthus okamurae
- Peak month
- September
- Records since 2000
- 147
- Group
- Seaweeds and algae
Coscinodiscus concinnus
- Peak month
- May
- Records since 2000
- 147
- Group
- Seaweeds and algae
Compsothamnion thuyoides
- Peak month
- July
- Records since 2000
- 146
- Group
- Seaweeds and algae
Gyrosigma acuminatum
- Peak month
- September
- Records since 2000
- 145
- Group
- Seaweeds and algae
Peacock’s tail
- Peak month
- August
- Records since 2000
- 145
- Scientific name
- Padina pavonica
Surirella roba
- Peak month
- May
- Records since 2000
- 145
- Group
- Seaweeds and algae
Gomphonema acuminatum
- Peak month
- September
- Records since 2000
- 143
- Group
- Seaweeds and algae
Chaetoceros sociale
- Peak month
- May
- Records since 2000
- 142
- Group
- Seaweeds and algae
Red seaweed
- Peak month
- September
- Records since 2000
- 142
- Scientific name
- Gracilaria multipartita
Erythrotrichia carnea
- Peak month
- June
- Records since 2000
- 139
- Group
- Seaweeds and algae
Monostroma grevillei
- Peak month
- April
- Records since 2000
- 139
- Group
- Seaweeds and algae
Asperococcus bullosus
- Peak month
- July
- Records since 2000
- 137
- Group
- Seaweeds and algae
Gomphonema angusta
- Peak month
- April
- Records since 2000
- 136
- Group
- Seaweeds and algae
Navicula veneta
- Peak month
- September
- Records since 2000
- 136
- Group
- Seaweeds and algae
Navicula claytonii
- Peak month
- April
- Records since 2000
- 135
- Group
- Seaweeds and algae
Achnanthes laevis
- Peak month
- April
- Records since 2000
- 133
- Group
- Seaweeds and algae
Bostrychia montagnei
- Peak month
- September
- Records since 2000
- 133
- Group
- Seaweeds and algae
Ellisolandia elongata
- Peak month
- September
- Records since 2000
- 133
- Group
- Seaweeds and algae
Navicula minuscula
- Peak month
- September
- Records since 2000
- 132
- Group
- Seaweeds and algae
Gelidium crinale
- Peak month
- May
- Records since 2000
- 131
- Group
- Seaweeds and algae
Synedra famelica
- Peak month
- May
- Records since 2000
- 131
- Group
- Seaweeds and algae
Kirchneriella aperta
- Peak month
- January
- Records since 2000
- 130
- Group
- Seaweeds and algae
Nitzschia tubicola
- Peak month
- April
- Records since 2000
- 129
- Group
- Seaweeds and algae
Tetmemorus granulatus
- Peak month
- June
- Records since 2000
- 129
- Group
- Seaweeds and algae
Gomphonema vitreum
- Peak month
- September
- Records since 2000
- 128
- Group
- Seaweeds and algae
Surirella minuta
- Peak month
- April
- Records since 2000
- 128
- Group
- Seaweeds and algae
Amphora inariensis
- Peak month
- September
- Records since 2000
- 127
- Group
- Seaweeds and algae
Amphora libyca
- Peak month
- September
- Records since 2000
- 127
- Group
- Seaweeds and algae
Plagiogramma brockmanni
- Peak month
- April
- Records since 2000
- 127
- Group
- Seaweeds and algae
Fragilaria perminuta
- Peak month
- April
- Records since 2000
- 126
- Group
- Seaweeds and algae
Blidingia marginata
- Peak month
- June
- Records since 2000
- 124
- Group
- Seaweeds and algae
Achnanthes marginulata
- Peak month
- April
- Records since 2000
- 123
- Group
- Seaweeds and algae
Euastrum ansatum
- Peak month
- July
- Records since 2000
- 123
- Group
- Seaweeds and algae
Euastrum pectinatum
- Peak month
- July
- Records since 2000
- 123
- Group
- Seaweeds and algae
Solieria chordalis
- Peak month
- July
- Records since 2000
- 123
- Group
- Seaweeds and algae
Navicula cincta
- Peak month
- September
- Records since 2000
- 122
- Group
- Seaweeds and algae
Leptosiphonia brodiei
- Peak month
- August
- Records since 2000
- 121
- Group
- Seaweeds and algae
Encyonema caespitosum
- Peak month
- May
- Records since 2000
- 120
- Group
- Seaweeds and algae
Halopithys incurvus
- Peak month
- May
- Records since 2000
- 118
- Group
- Seaweeds and algae
Nitzschia acidoclinata
- Peak month
- September
- Records since 2000
- 117
- Group
- Seaweeds and algae
Halopteris scoparia
- Peak month
- May
- Records since 2000
- 115
- Group
- Seaweeds and algae
Nitzschia delicatissima
- Peak month
- September
- Records since 2000
- 115
- Group
- Seaweeds and algae
Achnanthidium lineare
- Peak month
- April
- Records since 2000
- 114
- Group
- Seaweeds and algae