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Table 1 Frequency of occurrence (FO %), percent volume (V %), and alimentary importance index (IA i ) of the items identified in the stomach contents of Conodon nobilis (n = 160) sampled in Caraguatatuba Bight from October 2003 through October 2004

From: The barred grunt Conodon nobilis (Perciformes: Haemulidae) in shallow areas of a tropical bight: spatial and temporal distribution, body growth and diet

Dietary items

FO (%)

V (%)

IA i

Phylum Cnidaria

   

 Hydrozoa n.i.

1.91

0.02

0.00048

Phylum Sipuncula

   

 Sipuncula n.i.

1.91

0.03

0.00097

Phylum Echiura

   

 Echiura n.i.

0.64

0.01

0.00006

Phylum Mollusca

   

 Class Bivalvia

   

  Bivalve siphons

1.91

0.08

0.00213

Phylum Annelida

   

 Polychaeta n.i.

1.91

0.05

0.00145

 Polychaete tubes

1.27

0.03

0.00058

Phylum Arthropoda

   

 Crustacean fragments

13.38

1.12

0.22030

  Class Branchiura

   

   Branchiura n.i.

0.64

0.00

0.00003

  Class Malacostraca

   

   Crab n.i.

1.27

0.40

0.00749

   Mysida n.i.

83.44

63.50

78.07830

   Amphipoda n.i.

16.56

0.41

0.10071

   Amphipod tubes

20.38

1.30

0.39147

   Isopoda n.i.

0.64

0.04

0.00039

Phylum Bryozoa

   

 Bryozoa n.i.

1.91

0.01

0.00039

Phylum Chordata

   

 Class Pisces

   

  Fish fragments

4.46

10.63

0.69840

  Fish scales

62.42

14.15

13.02001

Others

   

 Organic matter n.i.

61.78

8.21

7.47680

Total

 

100

100