Fish Feces as Fish Food on a Pacific Coral Reef
Fish Feces as Fish Food on a Pacific Coral Reef
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太平洋珊瑚礁上的鱼粪作为鱼食
DOI：
10.3354/meps007253
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发表时间：
1982
影响因子：
2.5
通讯作者：
Robertson
中科院分区：
文献类型：
--
作者：
Robertson
在帕劳（西太平洋）监测了88种珊瑚鱼产生的5,975种粪便的命运。至少有45条鱼除了吃其他食物外，还吃鱼粪。种内食虫和自食虫非常罕见，大多数食虫相互作用发生在不同营养群的成员之间。粪便物质通过鱼类的进食网络移动，从食肉动物到以肉质微藻（主要是红色）为食的低碳酸盐饮食的食草动物，再到以棕色大藻为食的食草动物，再到以高碳酸盐饮食为食的食草动物和营养动物。中间环节常常被省略。这个网络保留了进入其中的食物，而且，因为食草动物吃鱼鱼的粪便，似乎回收了一些食物。鱼类几乎吃掉了浮游动物和其他食肉动物的所有粪便，并且吃掉了微藻类液晶的食草动物和硬珊瑚组织液晶的珊瑚动物产生的大部分粪便。鱼类对以褐藻为主的LCD食草动物的粪便摄食较少，对以hcd为主的食草动物和营养动物的粪便摄食基本为零。一些鱼类经常与浮游动物和LCD微藻动物的当地集中联系在一起，并消耗后者产生的大量粪便。虽然食食是一种常见的进食策略，但它对鱼类群落“普通”成员的重要性尚不清楚。
The fates of 5,975 feces produced by 88 species of reef fishes were monitored at Palau (western Pacific Ocean). At least 4 5 fishes ate fish feces in addition to other foods. Intraspecific coprophagy and autocoprophagy were very rare and most coprophagous interactions were between members of different trophic groups. Fecal material moved through a feeding network of fishes, from carnivores to herbivores with low carbonate diets (LCDs) of fleshy (principally red) microalgae to herbivores with LCDs of brown macroalgae to high carbonate diet (HCD) herbivores and detritivores. Intermediate links were often omitted. This network retained food material entering it, and, because herbivores ate piscivore feces, appeared to recycle some food. Fishes ate almost all the feces of zooplanktivores and other carnivores, and most of the feces produced by herbivores with LCDs of microalgae and by coralivores with LCDs of hard-coral tissue. Fishes ate few feces of LCD herbivores that led on brown macroalgae and virtually no feces of herbivores and detritivores with HCDs. A few fishes regularly associated with local concentrations of zooplanktivores and LCD microalgivores and consumed large amounts of the feces the latter produced. Although coprophagy is a common feeding tactic its importance to the 'average' members of the fish community is unknown.