搜索结果: 46-60 共查到“国际动态 水产学”相关记录217条 . 查询时间(0.846 秒)
修建大坝影响亚马孙河流域生态
英国 环境科学
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2017/6/16
英国《自然》杂志在2017年6月14日发表的一篇环境科学文章中称，研究人员量化了大坝对整个亚马孙河流域的生态影响，并尝试展开讨论：一方面，建造大坝发展水电可以带来潜在的环保效益，但另一方面，又可能对这条以生物多样性著称的河流系统造成巨大破坏，这样做的收益是否能超过成本？
科学家实现罗非鱼性别人工控制
罗非鱼 人工控制
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2017/2/15
近日，西南大学淡水鱼类资源与生殖发育教育部重点实验室率先建立起罗非鱼室内人工繁殖技术体系，实现鱼性别的人工控制，可大幅提高水产养殖收益。该研究成果发表于《公共科学图书馆—遗传学》。
Climate change prompts Alaska fish to change breeding behavior
Climate change Alaska fish change breeding behavior
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2017/2/16
One of Alaska’s most abundant freshwater fish species is altering its breeding patterns in response to climate change. This could impact the ecology of northern lakes, which already acutely feel the e...
Diversification key to resilient fishing communities
Diversification key resilient fishing communities
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2017/2/16
Fishing communities can survive ― and even thrive ― as fish abundance and market prices shift if they can catch a variety of species and nimbly move from one fishery to the next.These findings, p...
最新全球濒危物种红色名录发布 甲鱼上榜（图）
濒危物种 甲鱼
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2016/7/7
世界自然保护联盟近日发布最新版全球濒危物种红色名录，其中新增了甲鱼。日本共同社2016年7月5日报道，作出这一调整，是考虑到野生甲鱼在亚洲等国的生存状况。世界自然保护联盟认为，在日本、中国等地，野生甲鱼被捕获用于食用或人工养殖，个体数量持续减少；不过，就人工养殖甲鱼而言，数量仍然较多。在最新调整中，甲鱼被列入濒危物种三个级别中的最轻一档“易危”，即“灭绝几率大增种类”，这并不意味着限制转让或捕获，...
Whales dine with their own kind
Whales dine own kind
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2016/3/11
For a few weeks in early fall, Georges Bank — a vast North Atlantic fishery off the coast of Cape Cod — teems with billions of herring that take over the region to spawn. The seasonal arrival of the h...
Penn Study Reveals How Fish Control Microbes Through Their Gills
Penn Study Fish Microbes Gills
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2016/2/23
Oriol Sunyer, a professor at the University of Pennsylvania School of Veterinary Medicine, has described fish as “an open gut swimming.” Their mucosal surfaces — their skin, digestive tract ...
Warming waters contributed to the collapse of New England's cod fishery
Warming waters New England cod fishery
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2015/11/12
For centuries, cod were the backbone of New England's fisheries and a key species in the Gulf of Maine ecosystem.Today, cod stocks are on the verge of collapse, hovering at 3-4 percent of sustainable ...
New Study:Warming Waters a Major Factor in the Collapse of New England Cod
Warming Waters New England Cod
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2015/11/12
For centuries, cod were the backbone of New England’s fisheries and a key species in the Gulf of Maine ecosystem. Today, cod stocks are on the verge of collapse, hovering at 3-4% of sustainable levels...
Fish Story:Analysts See Nations’ Misuse of “Rational Use” When It Comes to Fishing Rights
Fish Story Rational Use Fishing Rights
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2015/11/12
The term “rational use,” as applied to fishing rights in Antarctic waters, has been misused by certain countries, an analysis by a team of researchers has concluded. Its work, which comes ahead of the...
National Science Foundation selects Amanda Hallberg Greenwell
National Science Foundation Amanda Hallberg Greenwell
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2015/7/13
The National Science Foundation (NSF) has selected Amanda Hallberg Greenwell to head the agency's Office of Legislative and Public Affairs (OLPA). OLPA communicates information about NSF's activities,...
澳大利亚西澳州渔业代表团访问中国水产学会
澳大利亚 西澳州渔业代表团 中国水产学会
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2013/9/29
2013年9月1～4日，以澳大利亚西澳州渔业部常务副部长Stuart Smith，西澳州休闲渔业顶尖机构Recfishwest主席Andrew Matthews及首席执行官Andrew Rowland一行8人访问中国水产学会，与中国水产学会进行人工鱼礁项目合作协商，并在北京、天津考察访问。
在我国，鲤鱼是餐桌上的美食，可是如果鲤鱼到了美国，美国人却视繁殖能力极强的鲤鱼为大敌。在过去几年为了避免出现生态灾难，美国政府曾经拨出了大量的款项，甚至还出动军队来阻止鲤鱼入侵美国的五大湖。
澳大利亚在藻类生物燃油上取得突破
澳大利亚 藻类生物燃油 突破
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2013/6/9
澳大利亚阿德莱德的一个科学家小组目前在微藻商业化产出可再生生物燃油的国际竞赛中处于领先地位。一个800万澳元(约合830万美元)的微藻生物燃油示范项目即将启动。合资公司将于今年6月开始建造澳大利亚第一个微藻(生物燃油)转化示范性工厂。它将在池塘中培植微藻，然后将微藻转化成与燃油的属性极为相似的生物燃油。