The feeding habits of three species of lanternfishes (family myctophidae) off oregon, USA
The feeding habits of three species of lanternfishes (family myctophidae) off oregon, USA
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美国俄勒冈州附近三种灯笼鱼（灯笼鱼科）的摄食习性
DOI：
10.1007/bf00395156
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发表时间：
1975
期刊：
影响因子：
2.4
通讯作者：
W. Pearcy
中科院分区：
文献类型：
--
作者：
H. Tyler;W. Pearcy
常见的MyctophidStenobrachiusleucopsarus、Diaphustheta和Tarletonbeanicrenulatrium主要以磷虾Euphausiapacifica、桡足类Metridialucens和Calanusspp.和端足类太平洋寄生虫这些鱼类的食性多样，广泛重叠，这表明他们是喂养通才。大多数胃包含所有桡足类或所有磷虾类。磷虾是最重要的猎物的生物量的基础上。它们占胃内容物重量的一半以上，三种鱼中有40%以上的个体。胃的饱腹感和胃内容物的消化状态在昼夜期间不同，但不足以表明仅在夜间进食。平均胃饱胀感在早上和晚上最大，而在大多数胃中占主导地位的消化良好的物质在早上和下午最普遍。要么全天都有进食，要么消化速度很慢。
The common myctophidsStenobrachius leucopsarus, Diaphus thetaandTarletonbeania crenulariswere found to feed primarily on the euphausiidEuphausia pacifica, the copepodsMetridia lucensandCalanusspp., and the amphipodParathemisto pacifica. The diets of these species of fishes were diverse and overlapped broadly, suggesting that they are feeding generalists. Most stomachs contained either all copepods or all euphausiids. Euphausiids were the most important prey on the basis of biomass. They comprised over one-half the weight of the stomach contents in over 40% of individuals of each of the three fishes. Stomach fullness and state of digestion of stomach contents differed over the diel period, but not enough to indicate feeding only during the nighttime. Average stomach fullness was greatest during the morning and night and well-digested material, which predominated in most stomachs, was most prevalent in the morning and afternoon. Either some feeding occurs throughout the day or digestion rates are slow.