Ichthyoplankton distribution and feeding habits of fish larvae at the inshore zone of northern Patagonia, Chile

Bernal, A.; Castro, Leonardo R.; Soto, Samuel; Cubillos, Luis A.

doi:10.1007/s12526-020-01069-5

Cited by 5 publications

(1 citation statement)

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“…Intriguingly, fish in the early life history stages did not rely on phytoplankton to receive the energy required for growth and development; instead, they primarily fed on copepods of varying sizes and developmental periods, depending on the size of the fish mouth [54][55][56]. For example, Bernal et al [57] indicated that myctophid larvae off the coast of western Australia feed predominantly on nauplii and copepodites. Contreras et al [58] showed that copepods dominated the larval diet of Diaphus vanhoeffeni, Hygophum macrochir and Myctophum affine in the equatorial and tropical Atlantic.…”

Section: Effect Of Biological Factorsmentioning

confidence: 99%

Assemblage Distribution of the Larval and Juvenile Myctophid Fish in the Kuroshio Extension Region: Winter 2020

Liu

Cao

2023

JMSE

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Myctophids are an ecologically important mesopelagic species in the eastern Pacific Ocean. Due to the wide distribution, great diversity and variable biological characteristics of the species, there is a lack of reliable information regarding their spawning and nursery grounds in the Kuroshio extension region. In this study, we identified a total of 110 myctophid individuals using DNA barcoding and morphological techniques, among which, the dominant genus was Ceratoscopelus, comprising 37.27% of the entire catch. The abundance of each sampling station was calculated, and its relationship with environmental variables was analyzed. Tweedie-Generalized Additive Model (GAM) analysis showed that copepod density, oceanic dynamic processes, and sea surface temperature were the primary factors influencing the distribution pattern of larvae and juvenile myctophid fish. The results further indicate that the Kuroshio extension plays a dominant role in the biological processes of these fish in this region. These findings provide crucial dynamic information for the scientific conservation and exploitation of myctophids, which could have significant implications for the management of these fish populations.

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