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Table 1 Prey items in Anthopleura nigrescens collected

From: Diet of the sea anemone Anthopleura nigrescens: composition and variation between daytime and nighttime high tides

 

Playa Dominical

Mata de Limón

Prey

n

f

P (%)

n

f

P (%)

Mollusca

      

 Juvenile bivalves

626

0.91

43.6

242

0.90

25.7

Brachidontes puntarenensis

1

0.01

0.1

20

0.24

2.1

Brachidontes semilaevis

-

-

-

9

0.10

1.0

 Gastropoda (unidentified)

13

0.13

0.9

5

0.06

0.5

Crustacea

      

 Cypris larvae

667

0.99

46.5

550

0.94

58.3

 Copepoda

      

  Corycaeus

93

0.43

6.5

74

0.59

7.8

  Cyclopoida

-

-

-

1

0.01

0.1

  Harpacticoida

2

0.02

0.1

1

0.01

0.1

  Euterpina acutifrons

1

0.01

0.1

4

0.06

0.4

  Microsetella rosea

1

0.01

0.1

-

-

-

 Cirripedia

1

0.01

0.1

8

0.11

0.8

 Zoea larvae

-

-

-

7

0.09

0.7

 Decapoda: Majoidea

1

0.01

0.1

-

-

-

 Isopoda

1

0.01

0.1

-

-

-

 Cladocera, Evadne

1

0.01

0.1

-

-

-

Arthropoda: Insecta

      

 Insecta (unidentified)

8

0.09

0.6

-

-

-

 Hymenoptera

3

0.03

0.2

-

-

-

 Coleoptera

2

0.02

0.1

-

-

-

 Collembola, Anurida

-

-

-

2

0.03

0.2

Arthropoda: Arachnida

      

 Halacaridae

2

0.02

0.1

-

-

-

Annelida

      

 Polychaeta (unidentified)

1

0.01

0.1

-

-

-

 Sabellaridae

1

0.01

0.1

-

-

-

 Syllinae

1

0.01

0.1

-

-

-

Other

      

 Egg masses

6

0.07

0.4

2

0.01

0.2

 Eggs

3

0.03

0.2

18

0.09

1.9

  1. Total number of each prey item (n), prey item frequency index (f), and prey item percentage (P), in Anthopleura nigrescens collected at Playa Dominical and Mata de Limón, Puntarenas.