利用人工鱼礁工程增殖海洋水产资源的研究

该文分析了人工鱼礁用于海洋牧场建设的可行性和人工鱼礁集鱼的机理，并介绍了人工鱼礁的种类、结构形式、平面布置以及制作人工鱼礁投放场地的若干问题进行了深入的探讨。     

基于改进遗传算法的岛礁区航路规划模型

为解决船舶穿过岛礁区时危险度大、航行难、航路规划复杂等问题,提出应用实数路径点编码配合采取精英保留策略的遗传算法。考虑船舶的转向困难性、航程、人为指定经过路径点以及船舶安全性,建立适应度函数评价模型。在电子海图平台上提取障碍物特征多边形顶点坐标,规划出最佳航路。该算法能解决多约束条件下的多目标优化问题。对舟山岛礁区进行实例验证。结果表明,改进后的遗传算法能够解决岛礁区的复杂航路规划问题,且实现简单,收敛速度较快,也不易陷入局部极小值。随着自动控制技术的不断发展,可为船舶在岛礁区的自主航行提供理论支持。     

Questions of ecopedagogy in tropical oceanScapes in the age of coral ecocide: An autoethnographic description

ABSTRACT

OceanScaping/scoping and the ecopedagogy of snorkeling are not well documented in the environmental education literature. This article focuses on the educative value of immersive saltwater experiences as pedagogical experience/s within coral reefs offshore from the tropical Australian city of Cairns. Drawing on a series of autoethnographic accounts of snorkeling journeys undertaken over the period 2015–2017, the article describes educators experiencing changes on coral reefs, temporally and spatially, during a time of reef ecocide. The author argues that offshore immersive learning enables a much deeper sense of understanding and integrated theoretical and practical ecopedagogy to unfold. However, in the Anthropocene, any discussion or practice of oceanScape ecopedagogy cannot escape the matter of marine ecocide. The professional implications for environmental educators are that if we are going to continue to educate with authenticity, then the timeliness, or not, of the antecedents and consequences of anthropogenic climate destabilization has to be front and center of every ecopedagogical discussion we have.     

藏北地区侏罗纪生物礁的发现及其意义

迄今为止,侏罗纪生物礁在国内报道极少,且仅限于西藏西南部[1,2].本文报道的侏罗纪生物礁是近3年中作者等在气候十分恶劣的高寒地区-藏北进行油气地质勘探过程中发现的,其产地共3处,即安多县东巧区、巴青县马乡和索县一带.     

海洋牧场 3.0：历程、现状与展望

20世纪30年代以来，海洋牧场的建设先后经历了以农牧化和工程化为特征的海洋牧场1.0（即传统海洋牧场）阶段和以生态化和信息化为特征的海洋牧场2.0（即海洋生态牧场）阶段，如今即将进入以数字化和体系化为特征的海洋牧场3.0（即涵盖淡水和海洋的全域型水域生态牧场）阶段。海洋牧场3.0必须坚持“生态、精准、智能、融合”的现代化水域生态牧场发展理念，以保护与利用并进、场景空间拓展、核心技术突破、发展模式创新为特征，构建科学选址—规划布局—生境修复—资源养护—安全保障—融合发展的全链条产业技术发展格局，打造北方海洋牧场“现代升级版”，拓展南方海洋牧场“战略新空间”，开启水域生态牧场“淡水新试点”，支撑国家级海洋牧场示范区建设，引领国际现代化水域生态牧场建设与发展。