Veliki morski toplinski val u blizini kalifornijske obale doveo je do smrtnih slučajeva morskih ptica, što je izazvalo zabrinutost među znanstvenicima i zaštitnicima prirode.
Morski ornitolog Tammy Russell, postdoktorant na Sveučilištu Kalifornije u San Diegu, Scripps Institution of Oceanography, opisala je prizor s kojim se susrela dok je pregledala plažu u San Diegu, gdje je pronašla brojne leševe morskih ptica raštrkane među ispiranim kelpima i pod stijenama.
Morski toplinski val, koji je trajao nekoliko mjeseci, značajno je utjecao na dostupnost hranjivih tvari neophodnih za život u moru. Rekordne temperature oceana smanjile su prisutnost hladne, hranjive površinske vode u kojoj krill, sardine i sardine obično napreduju. Kao rezultat toga, ovi kritični izvori hrane za morske ptice postali su oskudni, što je dovelo do masovnog gladi.
Izumiranje nije izolovano na određene vrste; čini se da utječe na širok raspon morskih ptica diljem cijele obale.
Potencijalno pogoršanje ove krize povezano je s formiranjem El Niña, prirodnog klimatskog fenomena koji karakteriše zagrijavanje središnjeg i istočnog ekvatorijalnog Tihog oceana. Znanstvenici upozoravaju da bi se trenutni El Niño, koji je već počeo oblikovati, mogao pojačati, što bi dovelo do većih globalnih temperatura i potencijalno pogoršati postojeći morski toplinski val.
Ovaj razvoj predstavlja značajnu prijetnju morskim ekosustavima, jer bi mogao dodatno poremetiti prehrambene mreže i ugroziti opstanak različitih vrsta, od sivih kitova do morskih ptica.
Istorijski gledano, smrt morskih ptica događala se povremeno, ali stručnjaci sugeriraju da takvi događaji postaju sve češći zbog tekućih učinaka klimatskih promjena.
Podvodni roboti opremljeni senzorima također su zabilježili visoke temperature na moru i na većim dubinama, uspoređujući ih s uvjetima doživljenim tijekom posljednjeg događaja El Niño 2023. godine.
D. Bergeron, izvršni direktor Međunarodne organizacije za spašavanje ptica, naglasio je da, iako nije rijetko pronaći mrtve ptice na plažama, veliki broj umrlih morskih ptica je vrlo neobičan.
Ova promatranja naglašavaju šire poremećaje u morskim ekosustavima i kaskadne učinke klimatskih promjena kako na morsko tako i na kopno okruženje.
2 izvještaja
UN NewsDržavni / javniSredinaČinjenice 95Objektivnost 75prije 3 danaThe World Meteorological Organization (WMO) has issued a warning that El Niño conditions are expected to develop rapidly from July to September 2026, with high confidence in this outlook. The phenomenon is projected to cause significant warming in the central and eastern equatorial Pacific, potentially leading to sea-surface temperature anomalies exceeding 2°C. This could result in extreme weather events globally, including prolonged heatwaves in the U.S., drier conditions in Central America and the Caribbean, and potential flooding in East Africa due to the Indian Ocean Dipole. The WMO urges immediate action to prepare for these impacts, emphasizing the need for water security in affected regions. El Niño, part of the El Niño-Southern Oscillation (ENSO), is known for its influence on global climate patterns.
Procjena pristranosti (Sredina): The article presents a scientific assessment of El Niño's impact on global weather patterns, relying on data from the WMO and its partner organizations. While the subject matter is politically charged due to its implications for disaster preparedness and resource management, the framing remains fact
Zašto ove ocjene (Činjenice 95 · Objektivnost 75): Factually accurate, aligns closely with the WMO report on El Niño intensity and global temperature impacts. Objectivity is lower due to emphasis on urgency and calls to action, which may introduce emotional framing.
ABC News (US)NeovisanSredinaČinjenice 85Objektivnost 70prije 5 danaA marine heatwave has led to widespread seabird deaths along the California coast, with scientists warning that the situation could worsen due to the developing El Niño phenomenon. Ornithologist Tammy Russell described finding numerous dead seabirds on San Diego beaches, noting that many had starved due to the decline of cold, nutrient-rich surface waters that support their food sources like krill and small fish. The National Oceanic and Atmospheric Administration (NOAA) confirmed the formation of El Niño, which is expected to intensify and potentially extend into 2027. Scientists report that while seabird die-offs are not uncommon, they are occurring more frequently as ocean temperatures rise globally. Data collected over decades by Scripps Institution of Oceanography indicates that this marine heatwave is among the most prolonged on record, with some coastal areas experiencing record-high temperatures for extended periods.
Procjena pristranosti (Sredina): The article presents scientific findings and expert observations regarding environmental changes and their effects on wildlife. It does not take a stance on political issues, nor does it show bias toward any particular ideology or policy. The focus is on climate-related phenomena and ecological data
Zašto ove ocjene (Činjenice 85 · Objektivnost 70): Factual claims about marine heat waves and seabird deaths are supported by the WMO report, though specific local impacts are not detailed in the primary source. Objectivity is somewhat compromised by focus on distressing imagery and potential bias toward environmental concern.
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