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Prey delivered to roseate tern chicks in the azores

机译:猎物被运送到亚速尔群岛的玫瑰燕鸥小鸡

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摘要

We analyzed food provisioning of Roseate Tern (Sterna dougallii) chicks at a col- ony in the Azores, 16 Jun.-5Jul. 1995. Prey offered to chicks and feeding frequency were examined in relation to the age of the chick, fish size, and time of day. Overall, Trumpet fish (Macroramphosus scolopax) predominated in the diet, but sauri (Scomberesox saurus and Nanichthys simulans), mackerel (Trachurus picturatus), garfish (Belone belone gracilis), and Lanternfish (Myctophidae) were important on certain days. Mostly epipelagic fish were taken, But mesopelagic fish became more common prey as the season progressed.
机译:我们于6月16日至7月5日在亚速尔群岛的一家医院分析了玫瑰燕鸥(Sterna dougallii)小鸡的食物供应。 1995年。研究了与雏鸡的年龄,鱼的大小和一天中的时间相关的提供给雏鸡的猎物和喂养频率。总体而言,在饮食中,喇叭鱼(Macroramphosus scolopax)占主导地位,但在某些日子中,sa鱼(Scomberesox saurus和Nanichthys simulans),鲭鱼(Trachurus picturatus),鱼(Belone belone gracilis)和灯笼鱼(Myctophidae)很重要。大多捕捞上鱼类,但随着季节的发展,中生鱼类成为更常见的猎物。

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