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Use of the Photo Method in the Study of the Composition and Abundance of Soft-Bottom Macrobenthos

机译:摄影方法在研究软底巨底栖动物的组成和丰度中的应用

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—The composition and abundance of the macrobenthic fauna associated with soft-bottom beds of the large bivalve mollusks Crenomytilus grayanus and Modiolus modiolus were studied in the inner part of Vos-tok Bay (Sea of Japan) in spring 2010. More than 30 taxa of animals were found in the mussel beds. Comparison of the data obtained with three different methods of studying muddy-bottom mussel communities showed that 80% of their biomass and only up to 25% of the species composition and 19% of the abundance can be estimated by the photo method. Photo surveys disregard small and/or juvenile animals, as well as infaunal organisms, and thus do not give a complete picture of the species, size, and age composition and abundance of biota.
机译:-2010年春季,在Vos-tok湾(日本海)的内部研究了与大型双壳软体动物Crenomytilus grayanus和Modiolus modiolus的软底床相关的大型底栖动物的组成和丰度。在贻贝床上发现了动物。用三种不同方法研究泥底贻贝群落的数据比较表明,通过照相法可以估算出它们的生物量的80%,仅物种组成的25%和丰度的19%。摄影调查不考虑小型和/或幼小动物以及不常见的生物,因此无法完整了解物种,大小,年龄组成和生物群的丰富度。

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