English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

. In coastal regions, rivers and streams may be importantsources of nutrients limiting to primary production in marine waters;however, sampling is still rarely conducted across the land-to-ocean aquaticcontinuum, precluding conclusions from being drawn about connectivitybetween freshwater and marine systems. Here we use a more-than-4-yeardataset (2014–2018) of nutrients (nitrogen, phosphorus, silica, iron) anddissolved organic carbon spanning streams draining coastal watersheds andnearshore marine surface waters along the Central Coast of British Columbia,Canada, at the heart of the North Pacific coastal temperate rainforestregion. Mean freshwater and surface marine N:Si:P ratios were 5:20:1 (P:Fe = 1:67) and 6:11:1, respectively, showing relative consistency across theland–ocean interface but deviation from the extended Redfield ratio.Inorganic nutrient concentrations (NO3-+NO2-,PO43-, Si(OH)4) in fresh waters were less than in thereceiving marine environment, indicating that freshwater nutrient inputs inthis region were of little importance to – or even diluted – the pool ofreadily available inorganic nutrients in nearshore waters. Conversely,fresh waters increased the pool of organic-matter-associated nutrients,namely dissolved organic nitrogen and iron. The organic-matter-richlandscapes of the region yielded globally significant quantities ofdissolved organic nitrogen (304–381 kg km−2 yr−1) and iron(463–596 kg km−2 yr−1), thus acting as important sources ofpotentially limiting nutrients to both nearshore and offshore waters. Theseexports may subsidise heterotrophic microbial communities capable ofdirectly consuming and remineralising these nutrients, potentiallycompensating for the dilution of inorganic nutrients by freshwater inputs.We highlight the need to better understand nutrient limitation in coastalwaters and for concerted research efforts to study the spatial and temporaldynamism at the land–ocean interface along the northeast Pacific coast.

Rain-fed streams dilute inorganic nutrients but subsidise organic-matter-associated nutrients in coastal waters of the northeast Pacific Ocean