Tab. 1 in Feeding habits of billfishes (Carangaria: Istiophoriformes) in the Ecuadorian Pacific Ocean

Tab. 1. Diet composition of Makaira nigricans, Kajikia audax, Istiophorus platypterus and Xiphias gladius by frequency of occurrence O), per cent prey- specific abundance Ni), per cent number (%N), prey-specific weight (%P) per cent weight (%W), and prey-specific index of relative importance (%PSIRI). *observed only during dry season, **observed only during rainy season. Makaira nigricansKajikia audaxIstiophorus platypterusXiphias gladiusO%P Ni %NWi%W% PSIRI%F O%P Ni%N%P Wi%W% PSIRI%F O%P Ni%NWi%W% PSIRIO%P Ni%NWi%W% PSIRIOsteichthyesAluterus monoceros1.21001.21001.21.2*0.61000.61000.60.6*Auxis spp.57.192.152.7915252.351.385.643.98543.643.775.088.866.689.066.866.72.875.02.170.42.02.0Auxis thazard0.61000.61000.60.61.01001.01001.01.0Balistes polylepis1.375.01.069.10.90.9*Belonidae1.31001.31001.31.3**3.059.61.856.71.71.7Coryphaena hippurus1.21001.21001.21.2*Decapterus macrosoma1.375.01.067.60.90.9Etrumeus teres3.032.91.038.81.21.1*1.914.60.36.30.10.2*Katsuwonus pelamis7.187.56.393.56.76.51.91001.91001.91.91.941.70.834.60.60.7Lagocephalus lagocephalus7.186.76.285.26.16.110.459.56.257.36.006.119.064.612.365.512.412.46.574.34.870.84.64.7Merluccius gayi1.986.71.789.41.71.73.076.92.360.51.82.11.953.11.044.30.80.9*Mugil cephalus6.093.35.695.65.75.61.91001.91001.91.9*1.966.71.261.41.11.2*Opisthonema libertate1.01001.01001.01.0*Pristigenys serrula1.216.70.23.8<0.10.1**1.362.50.891.91.21.0Scombridae1.21001.21001.21.20.6500.364.80.40.41.033.30.315.00.20.2Scomber japonicus2.022.50.540.10.80.6Thunnus albacares1.357.10.799.61.31.0Uninditified osteichthyes17.990.216.187.415.615.926.084.221.984.321.921.99.071.86.573.47.36.93.737.51.429.11.11.2CephalopodaAncistrocheirus lesueurii1.21001.21001.21.2*Argonauta spp.0.650.00.334.50.20.30.950.00.525.00.20.3**Dosidicus gigas8.356.54.7675.65.116.266.710.865.610.610.78.049.03.952.14.24.078.789.570.489.270.270.3Hyaloteuthis pelagica0.922.20.223.60.20.2Liocranchia reinhardti1.012.50.15.40.10.1Loligo sp.2.058.31.221.70.40.8**Onychoteuthidae1.21001.21001.21.2*1.98.50.26.10.10.1**Sthenoteuthis oualaniensis0.61000.61000.60.62.886.72.486.72.42.4Thysanoteuthis rhombus10.257.45.861.16.26.0**Uninditified cephalopoda2.41002.41002.42.45.872.64.270.64.14.23.052.81.638.91.21.413.964.69.069.210.29.6