Ecological survey of freshwater ecosystems of Ovia, Edo state Nigeria for gastropod molluscs

Animal Research International Pub Date : 2016-12-27 DOI:10.4314/ARI.V12I2

Benjamin Igho Igbinosa, J. I. Izegaegbe, F. Okafor, David Ayowie Uhunwangho

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引用次数: 6

Abstract

The survey for freshwater snails in streams, rivers and a lake in Ovia Southwest LGA of Edo State, Nigeria was carried out from June to November, 2013. Samples were collected by using sweep-net and by hand picking of snails within the open water habitat, at marginal areas and on submerged vegetation at edges of the habitats. A total number of 579 individual snails belonging to 6 families, Ampullariidae ( Lanistes varicus ), Mutelidae ( Aspatharia subreniformis ), Thiaridae ( Melanoides tuberculata ), Bulimlidae ( Bulimulus teniussimus, Drymaeus multilineatus ), Bithyniidae ( Gabbiella humerosa ), Hygrniidae ( Monacha catiana ) were collected. In terms of number and distribution, the Lanistes varicus was the most dominant species consisting of 258(44.6%) of the total number of snails collected. 330(56.9%) number of snails were collected from the open water, 209(36.1%) in the marginal areas and 40(6.9%) on submerged vegetation. Keywords : Freshwater snails, Ampullariidae, Mutelidae, Thiaridae, Bulimlidae, Bithyniidae, Hygrniidae, Submerged vegetation, Ovia, Edo State, Nigeria

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尼日利亚江户州奥维亚淡水生态系统腹足类软体动物生态调查

2013年6月至11月对尼日利亚埃多州奥维亚西南LGA的溪流、河流和湖泊中的淡水蜗牛进行了调查。在开阔水域生境、边缘区域和生境边缘淹没植被上采用扫网法和手采法采集钉螺样本。共收集钉螺579只，分属6科，分别为:壶形钉螺科(大角钉螺科)、小角钉螺科(小角钉螺科)、黑尾钉螺科(黑尾钉螺科)、圆尾钉螺科(长尾钉螺科)、长尾钉螺科(长尾钉螺科)。从数量和分布上看，钉螺为优势种，共有258只(44.6%);开阔水域钉螺330只(56.9%)，边缘地带钉螺209只(36.1%)，淹没植被钉螺40只(6.9%)。关键词:淡水蜗牛，壶形蜗牛科，钝尾蜗牛科，细尾蜗牛科，水蛭蜗牛科，水下植被，奥维亚，埃多州，尼日利亚

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Animal Research International

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