Abstract：
The feeding habits of organisms are important elements in their ecological role and are affected by several factors. The present study provides for the first time information on the diet and feeding strategy of Dentex maroccanus (Valenciennes, 1830) and examines the effects of various factors on the species\' feeding activity. Various indices (vacuity index, numerical and weight proportion, frequency of occurrence, alimentary coefficient, index of relative importance, diet breadth and overlap, Shannon-Wiener index, and trophic level) were estimated. The diet of the species consisted of 18 different prey taxa. The most important prey taxon was Decapoda. The study of the feeding strategy showed the narrow width of the species. Body size was found to significantly affect the species\' feeding habits. Polychaeta and Stomatopoda were found only in individuals with size ≥165 mm, Bivalvia mainly in sizes ≤120 mm, and Decapoda in the intermediate sizes. The largest individuals showed the lowest overlap with all other size groups. The trophic level increased from 3.7 in young individuals to 4.0 in larger sizes, indicating the carnivorous character of the species. The results of the present work contribute to a better knowledge of the species\' feeding ecology.
摘要：
生物的摄食习性是其生态作用的重要因素，并受多种因素的影响。本研究首次提供了有关Dentexmaroccanus（Valenciennes，1830年)，并考察了各种因素对物种摄食活动的影响。各种指数(真空指数，数值和重量比例，发生的频率，消化道系数，相对重要性指数，饮食的广度和重叠，Shannon-Wiener指数,和营养水平）进行了估计。该物种的饮食由18种不同的猎物类群组成。最重要的猎物类群是Decapoda。对摄食策略的研究表明，该物种的宽度较窄。发现体型显着影响物种的摄食习惯。仅在大小≥165毫米的个体中发现多毛和腹足动物，Bivalvia主要尺寸≤120mm，和中间尺寸的Decapoda。最大的个体与所有其他体型组的重叠程度最低。营养水平从年轻个体的3.7增加到较大个体的4.0，表明该物种的食肉特征。本工作的结果有助于更好地了解该物种的摄食生态学。
