1![Relative abundance and habitat association of three crayfish (Orconectes virilis, O. rusticus, and O. immunis) near an invasion front of O. rusticus, and long-term changes in their distribution in Lake of the Woods, Cana Relative abundance and habitat association of three crayfish (Orconectes virilis, O. rusticus, and O. immunis) near an invasion front of O. rusticus, and long-term changes in their distribution in Lake of the Woods, Cana](https://www.pdfsearch.io/img/65d4e468f34614d9b77b5e077e5abc77.jpg) | Add to Reading ListSource URL: www.aquaticinvasions.net- Date: 2009-12-16 04:34:22
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2![Virile Crayfish Orconectes virilis Identification Varies in color from brown to reddish-brown with green hues; Virile Crayfish Orconectes virilis Identification Varies in color from brown to reddish-brown with green hues;](https://www.pdfsearch.io/img/a54c535de9e68b7907bb9f641dda42ab.jpg) | Add to Reading ListSource URL: dnr.maryland.govLanguage: English - Date: 2014-07-29 09:00:30
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3![Virile Crayfish Orconectes virilis Identification Varies in color from brown to reddish-brown with green hues; Virile Crayfish Orconectes virilis Identification Varies in color from brown to reddish-brown with green hues;](https://www.pdfsearch.io/img/e6a1373092980d701dfed0baf931c824.jpg) | Add to Reading ListSource URL: dnr.state.md.usLanguage: English - Date: 2014-07-29 09:00:30
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4![Virile Crayfish Orconectes virilis Identification Varies in color from brown to reddish-brown with green hues; Virile Crayfish Orconectes virilis Identification Varies in color from brown to reddish-brown with green hues;](https://www.pdfsearch.io/img/d5e337e7483a178d4e51a83fb64a3199.jpg) | Add to Reading ListSource URL: www.dnr.state.md.usLanguage: English - Date: 2014-07-29 09:00:30
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5![Observing & Collecting Crayfish Crayfish in their Natural Habitat Crayfish are found in many streams and lakes of the Pacific Northwest. This provides teachers the opportunity to observe crayfish in their natural environ Observing & Collecting Crayfish Crayfish in their Natural Habitat Crayfish are found in many streams and lakes of the Pacific Northwest. This provides teachers the opportunity to observe crayfish in their natural environ](https://www.pdfsearch.io/img/0c0e93709f0a0a157ced02e36f1c9be3.jpg) | Add to Reading ListSource URL: www.k12.wa.usLanguage: English - Date: 2011-12-01 18:45:29
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6![](https://www.pdfsearch.io/img/c0e61e8ee8e27551afa7e83905cbb915.jpg) | Add to Reading ListSource URL: www.schweizerbart.deLanguage: English - Date: 2013-03-26 12:52:35
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