Thesis (M.S.)--West Virginia University, 2001. / Title from document title page. Document formatted into pages; contains v, 94 p. : ill. (some col.), map. Includes abstract. Includes bibliographical references.

Walleye fry stocking is common practice but success is rarely monitored. Use of oxytetracycline (OTC) can be used as a marking tool to identify stocked fish from naturally produced fish and determine stocking success. Through a series of experiments, parameters in the marking methodology were assessed for their effect on mark quality and retention of the mark over time. Mark quality was improved by marking fry at three days post hatch. Water source also significantly affected OTC mark quality. The use of powdered OTC produced higher quality marks than the use of liquid OTC. Retention of OTC marks was related to the quality of the OTC mark. Electrofishing surveys conducted on five lakes found high recruitment (>80%) among stocked walleye on two lakes, with more 40% recruitment on a third lake. This study found that stocked walleye fry were successfully recruited into the age 0+ year class. / October 2015

published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management

Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1992. / Vita. Abstract. Includes bibliographical references (leaves 101-106). Also available via the Internet.

Thesis (M.S.)--University of Wisconsin -- La Crosse, 1995. / Includes bibliographical references (leaves 36-39).

Thesis (M. Sc.)--University of Hong Kong, 2005.

Thesis (M.S.) in Marine Biology--University of Maine, 2009. / Includes vita. Includes bibliographical references (leaves 44-48).

Thesis (Ph. D.)--University of Wisconsin--Madison, 1961. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 110-112).

Mississippi is home to many small impoundments, providing anglers with local fishing opportunities. Crappie (Pomoxis spp.) fisheries are highly prized in the state, and managers struggle to meet angler expectations in these smaller systems. From 2015 to 2017, white crappie (Pomoxis annularis) and magnolia crappie (male black crappie Pomoxis nigromaculatus x female white crappie Pomoxis annularis), marked with oxytetracycline and alizarin red s, were stocked into five small Mississippi impoundments to evaluate stocking efficacy and long-term mark retention. Overall stocking contribution to established populations was 0.59% with only one marked fish recovered. An additional 12 lakes ranging in size from 28 and 357 hectares were studied to assess factors contributing to successful crappie populations. Highest crappie growth rates were observed in systems where crappie abundance is limited. Findings of this study suggest predator population management can be a valuable tool for managing crappie in small impoundments.

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