{"query_echo":{"q":"","filters":{"geography":["Humboldt Current System"]},"warnings":[{"code":"facet_value_not_in_vocabulary","message":"Value 'Humboldt Current System' for facet 'geography' is not in the controlled vocabulary."}]},"total":{"value":1,"relation":"eq"},"page":1,"page_size":20,"self":"https://climateinsightsdirectory.org/api/v1/search?geography=Humboldt+Current+System","stability":"beta","ai_marking":{"digital_source_type":{"uri":"http://cv.iptc.org/newscodes/digitalsourcetype/trainedAlgorithmicMedia","name":"Created using Generative AI"},"notice":"Summary and key insights are generated using artificial intelligence."},"results":[{"id":"iai-000125","url":"https://climateinsightsdirectory.org/document/iai-000125","title":"Growth and production of the copepod community in the southern area of the Humboldt Current System","publisher":{"name":"Inter-American Institute for Global Change Research","organization":"inter-american-institute-for-global-change-research"},"document_type":"research paper","language":"en","date_published":"2025-01-15","source_url":"https://iai.int/es/pub_acad/growth-and-production-of-the-copepod-community-in-the-southern-area-of-the-humboldt-current-system/","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","analysis_type"],"summary":{"text":"The study found that copepod biomass and production in the coastal upwelling zone off central-southern Chile decreased from 2004 to 2006, coinciding with a shift from large-sized to small-sized species and more persistent upwelling. While annual copepod production ranged from 24 to 52 g C m-2 year-1, the researchers suggest that increased wind-driven upwelling may lead to a negative trend in zooplankton biomass due to increased offshore advection.","ai_generated":true,"unit":"iai-000125#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"Copepod biomass (CB) and production (CP) were higher in the coastal upwelling zone (within 50 km) but showed a substantial decrease between 2004 and 2006. Annual CP was measured between 24 and 52 g C m-2 year-1, with a mean annual P/B ratio of 2.7.","ai_generated":true,"unit":"iai-000125#insight-1","date_modified":"2026-10-23"},{"text":"The decline in copepod biomass and production from 2004 to 2006 was linked to a change in community structure where small-sized species replaced large-sized forms, occurring alongside more persistent and extended upwelling.","ai_generated":true,"unit":"iai-000125#insight-2","date_modified":"2026-10-23"},{"text":"The study suggests that increased wind-driven upwelling in coastal systems may cause a negative trend in zooplankton biomass, potentially because extended upwelling increases the offshore advection of coastal plankton.","ai_generated":true,"unit":"iai-000125#insight-3","date_modified":"2026-10-23"}],"climate_tags":[],"geography_discussed":[],"frame_perspective":[],"analysis_type":["empirical study","time series analysis"]}]}