云南一水电开发公司擅自开闸放水致数万尾鱼死亡，赔偿268万元

Group 1 - The case involves a hydropower development company that unlawfully released water, resulting in the death of over 40,000 fish due to decreased dissolved oxygen and increased turbidity in the river [1] - The company was ordered to pay a total of 2.68 million yuan for ecological restoration costs and service function losses, following a court-mediated agreement [2] - The court emphasized the urgency of restoring the damaged ecological environment and highlighted the challenges in establishing unified standards for environmental damage assessments [2] Group 2 - The Supreme People's Court, along with other governmental bodies, issued a joint opinion to enhance the collaboration in law enforcement and judicial work to protect the ecological environment of the Yangtze River Basin [2] - The court's approach included expert discussions, supplementary assessments, and scientific consultations to resolve discrepancies in ecological restoration cost evaluations [2] - A total of 200,000 fish fry from eight species were determined for release to restore the local aquatic ecosystem [2]