What is it about?
We found the fishes that preyed on glass eels and the proportion of predation.
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Why is it important?
More than 99% of Japanese eel we consume are reared from naturally recruited glass eels, caught by fishers. Although predation could affect the recruitment, it is not known if glass eels are preyed on by other animals, what the predators are, how much they are eaten. Our findings are important in regard to these questions.
Perspectives
Although we successfully found the potential predators, it was surprising that glass eels were rarely found in the stomachs. It may be due to the declining recruitment of glass eels in recent years.
Dr Yoichi Miyake
National Research Institute of Fisheries and Environment of Inland Sea
Read the Original
This page is a summary of: Predation on glass eels of Japanese eel Anguilla japonica in the Tone River Estuary, Japan, Fisheries Science, July 2018, Springer Science + Business Media,
DOI: 10.1007/s12562-018-1238-x.
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Resources
Glass eel found in the stomach of channel catfish Ictalurus punctatus
This glass eel was found in the stomach of channel catfish Ictalurus punctatus, which had been caught by a frame trawl during glass eel fishing.
Glass eel found in the stomach of blackfin sea bass Lateolabrax latus
This glass eel was found in the stomach of blackfin sea bass Lateolabrax latus, which had been caught by lure fishing.
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