Revisiting in Situ Chlorophyll-a Data Along the Coast in North-Central Chile Considering Multiscale Environmental Variability

Montecino, Vivian; Astoreca, Rosa; Paredes, M. Alejandra; Rutllant, José A.

doi:10.4067/s0717-71782002030100031

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…growth in the ocean may be affected by variations in food availability, despite them being omnivores with a wide diet range, including zoo-and phytoplankton as well as small sh and invertebrates (Anderson 1994; Howard & Scott 1959; Tsikhon-Lukanina & Nikolaeva 2004). In the Humboldt Current System, increased phytoplankton concentrations induced by local upwelling events and increased radiation and temperature in austral summer (Marin et al 2003;Montecino et al 2002) may additionally contribute to enhanced growth rates of L. anatifera during the summer months. However, growth rates of L. australis in winter were only slightly lower compared to L. anatifera in summer, suggesting that food supply in winter was not a limiting factor.…”

Section: Seasonal and Regional Growth Rate Variationmentioning

confidence: 99%

Seasonal variation in growth rates of stalked barnacles (Lepas spp.): A proxy for floating time in temperate marine ecosystems

Goehlich

Luna‐Jorquera

Picard

et al. 2023

Preprint

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Gooseneck barnacles of the genus Lepas are sessile crustaceans settling and growing on free-floating substrata. They can be used as indicators for floating time of objects such as plastic, algae, airplane wrecks or human corpses. Precise estimates of floating time are only possible when accurate growth rates of Lepas are known. However, many factors modulate the growth of these crustaceans, making floating time estimates difficult. In this study, we measured growth rates of L. australis and L. anatifera in the Central Humboldt Current System over two consecutive summer and winter seasons. Growth patterns were best described by a logistic growth curve. Using the asymptotic value (maximum size) for each species and each season, we selected the linear phase of growth to fit simple predictive linear models to estimate floating time. Growth rates of L. anatifera were almost twice as high in the warmer summer months compared to the winter season suggesting that growth rates are strongly associated with temperature. Consequently, seasonal or regional growth rates are required to precisely estimate floating time of objects at sea.

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Section: Seasonal and Regional Growth Rate Variationmentioning

confidence: 99%

Seasonal variation in growth rates of stalked barnacles (Lepas spp.): A proxy for floating time in temperate marine ecosystems

Goehlich

Luna‐Jorquera

Picard

et al. 2023

Preprint

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Seasonal growth rates of gooseneck barnacles (Lepas spp.): Proxies for floating time of rafts in marine ecosystems

Goehlich,

Luna-Jorquera,

Drapeau Picard

et al. 2023

Mar Biol

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Diversity of culturable filamentous Ascomycetes in the eastern South Pacific Ocean off Chile

Vera

Gutiérrez

Palfner

et al. 2017

World J Microbiol Biotechnol

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Our study reports the diversity of culturable mycoplankton in the eastern South Pacific Ocean off Chile to contribute with novel knowledge on taxonomy of filamentous fungi isolated from distinct physicochemical and biological marine environments. We characterized spatial distribution of isolates, evaluated their viability and assessed the influence of organic substrate availability on fungal development. Thirty-nine Operational Taxonomic Units were identified from 99 fungal strains isolated from coastal and oceanic waters by using Automatic Barcode Gap Discovery. All Operational Taxonomic Units belonged to phylum Ascomycota and orders Eurotiales, Dothideales, Sordariales and Hypocreales, mainly Penicillium sp. (82%); 11 sequences did not match existing species in GenBank, suggesting occurrence of novel fungal taxa. Our results suggest that fungal communities in the South Pacific Ocean off Chile appear to thrive in a wide range of environmental conditions in the ocean and that substrate availability may be a factor influencing fungal viability in the ocean.

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Revisiting in Situ Chlorophyll-a Data Along the Coast in North-Central Chile Considering Multiscale Environmental Variability

Cited by 3 publications

References 13 publications

Seasonal variation in growth rates of stalked barnacles (Lepas spp.): A proxy for floating time in temperate marine ecosystems

Seasonal variation in growth rates of stalked barnacles (Lepas spp.): A proxy for floating time in temperate marine ecosystems

Seasonal growth rates of gooseneck barnacles (Lepas spp.): Proxies for floating time of rafts in marine ecosystems

Diversity of culturable filamentous Ascomycetes in the eastern South Pacific Ocean off Chile

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