Identification of larvae: the zebra mussel (Dreissena polymorpha), quagga mussel (Dreissena rosteriformis bugensis), and Asian clam (Corbicula fluminea)
Identification of larvae: the zebra mussel (Dreissena polymorpha), quagga mussel (Dreissena rosteriformis bugensis), and Asian clam (Corbicula fluminea)
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DOI：
10.1139/z94-057
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发表时间：
1994-03
影响因子：
1.4
通讯作者：
S. Nichols;M. Black
中科院分区：
文献类型：
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作者：
S. Nichols;M. Black
目前，美国有四种淡水双壳贝类，它们产生的幼虫或丝状幼体通常在水柱中发现：两种形式的亚洲文蛤和两种鱼腥科动物。其中三种双壳类的地理范围部分重叠，造成幼体识别方面的问题。为了确定哪些特征可以用来区分幼虫形态，将成年的亚洲文蛤、斑马贻贝和斑马贻贝带到实验室并诱导产卵，然后饲养产生的幼虫。斑马贻贝和斑马贻贝之间的杂交也被培育出来，但没有饲养到成熟。能够最快速和准确地分离幼虫的特征是铰链长度、贝壳长度/高度、贝壳形状、贝壳大小以及是否有脚和膜。在已知亲本的实验室饲养的幼虫中观察到了这些特征。
There are presently four freshwater bivalves in the United States that produce larvae or veligers commonly found in the water column: two forms of Asian clams and two species of dreissenids. Portions of the geographic range of three of these bivalves, one species of Asian clam (Corbicula fluminea), zebra mussels (Dreissena polymorpha), and quagga mussels (Dreissena rosteriformis bugensis), overlap, causing problems with larval identification. To determine which characteristics can be used to separate larval forms, adult Asian clams, quaggas, and zebra mussels were brought into the laboratory and induced to spawn, and the resulting larvae were reared. Hybrids between quaggas and zebra mussels were also produced, but not reared to maturity. Characteristics allowing for the most rapid and accurate separation of larvae were hinge length, shell length/height, shell shape, shell size, and the presence or absence of a foot and velum. These characteristics were observed in laboratory-reared larvae of known parent...