Spatial patterns of microparticle ingestion by myctophids near a major river mouth in the northeast Pacific Ocean

Frontiers in Marine Science, Год журнала: 2024, Номер 11

Опубликована: Авг. 16, 2024

Introduction Plastics carried in the outflow of major rivers can be made available and subsequently ingested by marine fishes, causing lethal sublethal effects. Highly abundant, vertically migrating myctophids play a crucial role facilitating nutrient cycling between epi- mesopelagic zones. However, this diel movement may also make significant conduits for transporting microparticles from surface waters to deeper food webs. Methods We examined gastrointestinal tracts 340 caught at varying distances Columbia River mouth epipelagic zone northeast Pacific Ocean determine if proximity presumed point source influences microparticle ingestion. Results While we found no direct spatial connection with ingestion frequency, discovered that (a) ~34% had either synthetic or other anthropogenic particles retained their GI tract, (b) was higher an active-feeding species myctophid ( Tarletonbeania crenularis ) than inactive-feeding Stenobrachius leucopsarus ), (c) standard length were most influential predictors consumption our best fit model. Discussion Our failure detect relationship distance is likely due undergoing fluctuations dispersal patterns once they enter ocean, particularly microfibers which transported across large distances. Biological factors like body size more relevant understanding fishes. Overall, study highlights potential serve as multidirectional transporters Northern California Current webs, impacts on fisheries human systems.

Язык: Английский

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Micro– and mesoplastic pollution in the surface water and nekton from the Eastern Indian Ocean: Spatiotemporal variation, correlation and risk assessment

Environmental Research, Год журнала: 2024, Номер 264, С. 120377 - 120377

Опубликована: Ноя. 15, 2024

Язык: Английский

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>b<DNA barcoding of the western South Atlantic deep-sea fishes (Actinopterygii:Teleostei)>/b<

Опубликована: Дек. 12, 2023

Язык: Английский

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