Black scorpion fish (Scorpaena porcus) is an important species for both artisanal and industrial fisheries in the Turkish Black Sea, with 306 tonnes landed in 2017. The diet composition of this species was investigated through the examination of their stomach contents. A total of 621 S. porcus (ranging from 12.79–765.5 g) were caught by trammel net in the south-eastern Black Sea (Turkish waters) from December 2015 to November 2016. The importance of prey items in the diet of S. porcus was assessed using the Index of Relative Importance (%IRI). Overall, the dominant species was the isopod Idotea balthica (52.8%IRI) followed by decapods (38.5%IRI) and teleosts (8.7%IRI). Seasonal variations in the diets were observed, with isopods predominant in autumn (>85%IRI), teleosts in winter (>77%IRI) and decapod crustaceans (>78%IRI) in spring and summer. The modified Costello's graphical analysis evinced a specialist feeding strategy for S. porcus during winter, spring and autumn while a shift to generalistic feeding strategy was exhibited in summer by a limited number of S. porcus individuals.

中文翻译：

---

土耳其（Ordu）东南黑海地区黑蝎鱼（Scorpaena porcus Linnaeus，1758）的饲养生态

黑蝎鱼（天蝎座) 是土耳其黑海手工和工业渔业的重要物种，2017 年有 306 吨上岸。通过检查其胃内容物来研究该物种的饮食组成。共有 621 个S. porcus2015 年 12 月至 2016 年 11 月，在黑海东南部（土耳其水域）被铁网捕获（范围从 12.79 到 765.5 克）。S. porcus使用相对重要性指数 (%IRI) 进行评估。总体而言，优势物种是等足类动物紫檀(52.8%IRI) 其次是十足类动物 (38.5%IRI) 和硬骨鱼 (8.7%IRI)。观察到日粮的季节性变化，秋季以等足类动物 (>85%IRI) 为主，冬季以硬骨鱼 (>77%IRI) 为主，春季和夏季以十足类甲壳类动物 (>78%IRI) 为主。修改后的 Costello 的图形分析证明了一种专业的喂养策略S. porcus在冬季、春季和秋季，而在夏季，少数几S. porcus个人。