Ikigai Daily
WonderMarine migration fact1,741 of 1,961

South Africa's sardine run sends vast shoals north along the coast during winter cool-water conditions, drawing dolphins, gannets, sharks, seals and whales into one marine spectacle.

South Africa's winter sardine migration

MigrationOceanBiologyClimateScience

Why it matters

The idea in context

The sardine run is oceanography becoming theatre. A temporary corridor of cooler water lets sardines surge along South Africa's east coast, and the food web notices. Dolphins herd, gannets dive, sharks slice through the shoals and whales arrive at the commotion. Scientists still debate the full logic of the run, which makes it more interesting: even abundance can be a question in motion.

Türkçe

Aynı kart, başka bir dilde.

Güney Afrika'nın sardalya göçünde dev sürüler, kışın oluşan serin su koşullarında kıyı boyunca kuzeye ilerler; yunusları, sümsük kuşlarını, köpek balıklarını, fokları ve balinaları tek bir deniz gösterisine çeker.
Güney Afrika'nın kış sardalya göçü

Sardalya göçü, okyanus biliminin tiyatroya dönüşmesidir. Geçici bir serin su koridoru, sardalyaların Güney Afrika'nın doğu kıyısı boyunca akmasına izin verir ve besin ağı bunu fark eder. Yunuslar sürüleri sıkıştırır, sümsük kuşları dalar, köpek balıkları sürülerin içinden geçer ve balinalar kargaşaya katılır. Bilim insanları göçün tam mantığını hâlâ tartışıyor; bu da onu daha ilginç kılıyor: bolluk bile hareket halindeki bir soru olabilir.

Source trail

Read beyond the card.

Background reading: Sardine runAttribution and context are revised when stronger evidence appears. Corrections are welcome through the editorial page.
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