DANIELS: FEEDING ECOLOGY OF ANTARCTIC FISHES 



Table 3.— Diets by percentage frequency of occurrence, number, and point volume and diet diversity by number of taxa consumed 

 (P) and diversity index (//) of fishes of the genera Trematomus, Pleuragramma, and ( 'ryothemia collected off Antarctic Peninsula, 

 1975. See text for explanation of terms. 



Table 4.— Diets by percentage frequency of occurrence, number, and point volume and diet diversity by 

 number of taxa consumed (P) and diversity index (H) of harpagiferids and bathydraconids collected off 

 the Antarctic Peninsula, 1975. See text for explanation of terms. 



Seasonal Changes 



Changes in diet in N. neglecta and H. bispinis 

 were monitored at monthly intervals in Arthur 

 Harbor through the year. Notothenia neglecta 

 showed a significant seasonal diet change (x 2 = 

 727, df = 104, P<0.01); these fishes switched 



from being omnivores in the austral spring and 

 summer to a carnivorous diet through autumn 

 and winter. Notothenia neglecta also consumed a 

 large variety of organisms, including individuals 

 from several different microhabitats such as 

 isopod Serolis polita and nemertean worm 

 Lineas corrugatus from mud bottom areas, 



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