A01-K106 Study on mechanisms to cause fish weight decrease in the 2010s using a fish growth-migration model
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A01-K106
Principal Investigator
ITO Shin-ichi
U. Tokyo
Research Collaborators
ENOMOTO Takeshi
Kyoto U., PI of A02-6
HAYASHIDA Hakase
JAMSTEC, Co-I of A02-6
USUI Norihisa
Meteorological Research Institute, PI of A03-7
OHISHI Shun
RIKEN, Co-I of A03-7
KOMATSU Kosei
U. Tokyo, Co-I of A03-7
LIN Zhen
Tohoku U.
YU Zeshu
U. Tokyo
It was reported that the body weights of many fish species have decreased in the waters surrounding Japan in the 2010s. We propose the hypothesis that “the decreased prey production associated with global climate change is intensifying competition among fish species for prey and causing the decline in fish weight in the 2010s,” for the phenomenon. We will test this hypothesis in this study. Specifically, we will investigate where and how the intra/interspecific competition for food (density effect) are acting around Japan by integrating a growth-migration-population dynamics coupled model of fish species under the output environments of marine ecosystem data assimilation by A02-6.
from Lin Z., S. Ito, 2024, Fish weight reduction in response to intra- and interspecies competition under climate change. Fish and Fisheries, 25, 455-470. https://doi.org/10.1111/faf.12818
