Skip to main content

Advertisement

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.