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根据2007年秋季在黄海北部海域进行的定点底拖网调查,对黄鮟鱇(Lophius litulon)的摄食习性进行了初步研究。结果表明,黄鮟鱇在秋季主要以底层鱼类和虾类为食,优势饵料生物是矛尾虾虎鱼(Chaeturichthys stigmatias)和脊腹褐虾(Crangon affinis),其中矛尾虾虎鱼在食物组成中所占的比例最高,是黄鮟鱇最重要的饵料生物。典范对应分析表明,水深、经度和纬度对黄鮟鱇的食物组成有显著影响(P<0.05),而体长、性别和性腺成熟度则没有显著影响(P>0.05)。黄鮟鱇摄食矛尾虾虎鱼和脊腹褐虾的体长范围分别是32~152 mm和34~79 mm,平均体长分别为(80.8±1.88)和(53.2±3.11)(S.E.)mm,它与2种饵料生物的体长之间没有显著的相关关系。黄鮟鱇与矛尾虾虎鱼和脊腹褐虾体长的比率分别为1.19~5.14和2.38~6.02,平均值分别为(2.67±0.09)和(4.23±0.29)(S.E.),黄鮟鱇与2种饵料生物体长的比率与黄鮟鱇的体长之间存在极显著的正相关关系。
Based on the bottom-trawl surveys carried out in the autumn of 2007 in the northern Yellow Sea, the feeding habits of Lophius litulon was preliminary studied. The results showed that in the autumn, the chief catfish fed on groundfish and shrimp, and the dominant bait organisms were Chaeturichthys stigmatias and Crangon affinis. Among them, In the highest proportion, is the most important food bait creatures. Canonical correspondence analysis showed that water depth, longitude and latitude had significant effects on food composition (P <0.05), while body length, sex and gonadal maturity had no significant effect (P> 0.05). The body length of Phasianus emigginse and Cichlasoma pardus were 32-152 mm and 34-79 mm, respectively, and the mean body lengths were (80.8 ± 1.88) and (53.2 ± 3.11) mm (SE) There is no significant correlation between it and the body length of two kinds of food organisms. The ratio of body length of Phasianus colchicus and Phasianus population was 1.19-5.14 and 2.38-6.02, respectively, and the average values were (2.67 ± 0.09) and (4.23 ± 0.29) (SE) There was an extremely significant positive correlation between the ratio of body length to body length and the body length of Fagaceae.