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首页> 外文期刊>Southeastern naturalist >Freshwater Mussels (Unionidae) in the Headwaters of Chipola River, Houston County, Alabama
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Freshwater Mussels (Unionidae) in the Headwaters of Chipola River, Houston County, Alabama

机译:阿拉巴马州休斯顿县奇波拉河源头的淡水贻贝(Unionidae)

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摘要

Big and Cowarts creeks lie in extreme southeastern Alabama and form the headwaters of Chipola River. Qualitative and quantitative sampling for freshwater mussels in these reaches during 2006 and 2007 revealed an intact fauna, relative to historical reports. A cumulative total of 17 species, including federally protected Elliptio chipolaensis (Chipola Slabshell), Lampsilis subangulata (Shinyrayed Pocketbook), Medionidus penicillatus (Gulf Moccasinshell), and Pleurobema pyriforme (Oval Pigtoe), was encountered. A total of 3382 mussels (density 5.84 per In 2) was estimated for one 65-rn reach of Big Creek and 9627 mussels (density 8.09 per m(2)) were estimated to occur in one 170-m reach of Cowarts Creek. Tributaries had depauperate faunas, apparently due to substrate instability.
机译:大河和小母牛河位于阿拉巴马州的东南部,形成了奇波拉河的源头。相对于历史报道,在2006年至2007年期间对这些河段的淡水贻贝进行了定性和定量采样,发现它们是完整的动物区系。总共遇到了17种,包括受联邦政府保护的Elliptio chipolaensis(Chipola Slabshel​​l),subgloulata Lampsilis subangulata(Shinyrayed Pocketbook),Medionidus penicillatus(Gulf Moccasinshell)和Pleurobema pyriforme(Oval Pigtoe)。一个大溪流65米的河段估计总共有3382个贻贝(密度为5.84 / in 2),而在考特河溪流的170 m范围内估计出现了9627个贻贝(密度为8.09 / m(2))。支流有灭绝的动物群,这显然是由于基质的不稳定性所致。

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