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Fig. 4 | Movement Ecology

Fig. 4

From: Sympatric Atlantic puffins and razorbills show contrasting responses to adverse marine conditions during winter foraging within the North Sea

Fig. 4

Catch per unit effort (CPUE) per hour data, per ICES statistical rectangle for age class 0 sprat, sandeel, herring and snake pipefish, in quarter 1 in 2008 and 2015. CPUE/hr. values were averaged in each ICES rectangle and displayed as log10(CPUE/hr. + 1). Data were obtained from ICES North Sea IBTS database. Green line indicates the 55° mark, separating the northern and southern North Sea

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