{"success":true,"type":"rich","version":"1.0","cache_age":86400,"width":440,"height":500,"provider_name":"RiffReporter","provider_url":"https:\/\/www.riffreporter.de","safety":"nonadult","asset_type":"article","url":"https:\/\/www.riffreporter.de\/de\/umwelt\/raetselhafte-wanderfische","category":"Umwelt","author_name":"Rainer B. Langen","author_url":"https:\/\/www.riffreporter.de\/de\/autorinnen-und-autoren\/rainer-b-langen","title":"Fischwanderungen bergen noch viele R\u00e4tsel","summary":"Die Migration der Wanderfische zwischen verschiedenen Lebensr\u00e4umen wird oft gest\u00f6rt oder unterbunden, z. B. durch Staud\u00e4mme und Wasserverschmutzung.. Dabei ist\u2026","publication_date":"13.12.2019","thumbnail_url":"https:\/\/riff.media\/images\/lachs-wanderung-laichen-fluss.jpg?w=440&h=247&fit=crop-53-47&s=3c3489e03285ef1f7f3aea679809c2a3","thumbnail_width":440,"thumbnail_height":247,"thumbnail_credit":null,"thumbnail_credit_url":null,"thumbnail_credit_note":null,"html":"