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Trophic level influences larval Shortbelly Rockfish development
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2024
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Source: Marine and Coastal Fisheries, 16(6)
[PDF-1.15 MB]
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Journal Title:Marine and Coastal Fisheries
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Description:Early life success of fishes is considered one of the most important drivers of recruitment to adult populations, and elucidating the governing mechanisms is important for management efforts. Many hypotheses over the past century have been proposed to explain recruitment fluctuation, with the recently postulated Trophic Efficiency in Early Life (TEEL) hypothesis arguing that a shorter food chain length equals greater energy transfer efficiency from primary producers to larval fishes, thereby reducing early‐life mortality and ultimately leading to stronger recruitment. Under TEEL it would then be assumed that feeding low in the food chain would improve growth and body condition, as these are often shown to be associated with increased survival in larval fishes. The objective of this study was to test this aspect of the TEEL hypothesis by quantifying condition, growth, and trophic level of larval Shortbelly Rockfish Sebastes jordani collected by the California Cooperative Oceanic Fisheries Investigations program and archived at the Ichthyoplankton Collection.
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Source:Marine and Coastal Fisheries, 16(6)
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ISSN:1942-5120
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Rights Information:CC BY
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Compliance:Submitted
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