Some of the crannógs have natural islands or shoals at their core; others are built entirely in open water.
有的克兰诺格是围绕着水中孤岛、浅滩而建的，有的整栋都直接建造在开阔的水面上。
The concept includes water breaks such as artificial islands or shoals and reintroducing once-plentiful oyster beds.
而对这一观点的展开则包含了像人工岛屿或浅滩此类可以造成水隔断与阻滞的设计，以及对一度丰饶的养蚝场的再引进。
"The warming of the lake is counteracting the mixing we would expect," says McKinley, as the annual period warm water "shoals," or remains shallow, grows longer by a few days every decade.
麦金利说：“湖变暖阻止混合物是我们所希望的。一年一度的温水“险滩”，会在每10年的数天内会变很浅，或变的狭长。”
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