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Distribution of Yellow Grub (Clinostomum Marginatum) Metacercariae in Black Bass (Micropterus Spp.) from Arkansas Ozark and Ouachita Reservoir Lakes James J

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Distribution of Yellow Grub (Clinostomum Marginatum) Metacercariae in Black Bass (Micropterus Spp.) from Arkansas Ozark and Ouachita Reservoir Lakes James J View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by ScholarWorks@UARK Journal of the Arkansas Academy of Science Volume 67 Article 31 2013 Distribution of Yellow Grub (Clinostomum marginatum) Metacercariae in Black Bass (Micropterus spp.) from Arkansas Ozark and Ouachita Reservoir Lakes James J. Daly Sr. University of Arkansas for Medical Sciences, [email protected] Follow this and additional works at: http://scholarworks.uark.edu/jaas Part of the Animal Diseases Commons, and the Zoology Commons Recommended Citation Daly, James J. Sr. (2013) "Distribution of Yellow Grub (Clinostomum marginatum) Metacercariae in Black Bass (Micropterus spp.) from Arkansas Ozark and Ouachita Reservoir Lakes," Journal of the Arkansas Academy of Science: Vol. 67 , Article 31. Available at: http://scholarworks.uark.edu/jaas/vol67/iss1/31 This article is available for use under the Creative Commons license: Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0). Users are able to read, download, copy, print, distribute, search, link to the full texts of these articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author. This General Note is brought to you for free and open access by ScholarWorks@UARK. It has been accepted for inclusion in Journal of the Arkansas Academy of Science by an authorized editor of ScholarWorks@UARK. For more information, please contact [email protected]. Journal of the Arkansas Academy of Science, Vol. 67 [2013], Art. 31 Distribution of Yellow Grub (Clinostomum marginatum) Metacercariae in Black Bass (Micropterus spp.) from Arkansas Ozark and Ouachita Reservoir Lakes J.J. Daly Sr. Department of Microbiology, University of Arkansas for Medical Sciences, 4301 W. Markham, Little Rock AR 72205 Correspondence: [email protected] Running title: Yellow Grub in Black Bass from Ozark and Ouachita Reservoir Lakes Yellow grub (Clinostomum margintum) is a host), mean intensity (average of infected fish only) commonly found parasite in fish. Numerous species of and prevalence (percent of infected hosts), Standard fish have been found to harbor the metacercarial stage length, ranging from 30 to 50 cm, as well as of this parasite and it presumably can infect any North circumference, of bass hosts were measured but no American freshwater fish (Hoffman 1999). Fish are significant correlation was found between size and any infected by larval forms released from the first of the population parameters; results similar to stream intermediate host, a planorbid snail, which in turn have studies by Daly and coworkers. been infected by larvae hatched from eggs deposited in The new distribution and abundance data of yellow the water from the definitive host, the fish-eating great grub in Arkansas upland reservoirs can be found in blue heron (Ardea herodias). The metacercariae can Table 1. When compared to data on Arkansas streams invade most tissues of the host’s body with the and older lake reports infection with yellow grub in exception of bone and perhaps internal organs. reservoir lakes is very light compared to those in Ozark Most of the reports of this parasite in Arkansas and Ouachita streams (Fig. 1). Stream locales were (and Missouri) have been concerned with black bass much higher in yellow grub mean abundance with two (Micropterus spp.) with one other major host reported, exceptions: The White River in Northwest Arkansas the channel catfish (Ictalurus punctatus), which was and in Missouri streams with M. salmoides. The first found to be heavily infected in a commercial pond in may have been due to an increase of human activity Northwest Arkansas (Daly and Singleton 1994). The disturbing the herons during at the building of Beaver first report on yellow grub in Ozark bass was made in Dam and the second due to the different susceptibilities 1972 on 72 bass collected from 6 Southwest Missouri of bass species in a stream relative to a lake setting. streams (Taber 1972). Since then there have been a Although in Arkansas and Missouri yellow grub in number of reports from Arkansas but most have bass are found more abundantly in streams than in concerned infected black bass in rivers and creeks lakes that is not necessarily true elsewhere in lake fish. (Daly et al 2002, Daly Jr. et al 1999). One lake study Heavy infections have been found in yellow perch was by Cloutman (1975) who found no yellow grub in (Perca flavescens) from lakes in Northern Minnesota 88 largemouth bass from Lake Fort Smith, and very (Elliot and Russert 1949, Fischthal 1949). The size, light and uncommon infections in smaller centarchid age, and general conditions of the lake (natural versus hosts. Another was by Becker et al (1978) who found man-made) may indicate physical factors that may no yellow grub in Beaver Lake bass. The purpose of have something to do with the less infected bass in this study was to obtain more data on lake bass hosts Arkansas reservoir lakes. Insofar as size of the lakes is and to compare the distribution and abundance of concerned, Lake Erie, which is much larger than the yellow grub in lake bass with bass infections in Minnesota lakes, has a substantial perch fishery but streams. there have been no reported problems with the grub. In 1990, 17 smallmouth (M. dolomieu), 88 spotted Anecdotally, much smaller Lake Simcoe, just north of (M. punctulatus), and 73 largemouth bass (M. Lake Erie in Canada has reported infections (pers. salmoides) were collected from boat marinas and other comm., Ohio State University Biological Station, bass tournaments and examined for the presence of Sandusky, Ohio). The lack of ability for the parasite to yellow grub. Necropsy was done on all soft tissues and survive in a reservoir lake environment in Arkansas recorded. The population parameters, as defined by was best shown by the decreasing prevalence and Bush et al 1997, are mean abundance (average/fish), abundance of C. marginatum in largemouth bass (M. maximum abundance (heaviest infection in a single Salmoides) from pre-impoundment to post- Journal of the Arkansas Academy of Science, Vol. 67, 2013 173 Published by Arkansas Academy of Science, 2013 173 Journal of the Arkansas Academy of Science, Vol. 67 [2013], Art. 31 J.J. Daly Sr 25 M. dolomeiu M M. punctulatus e 20 a n A 15 b u n 10 d a M. salmoides n 5 c e 0 S S S F S S F C C R B R R B A A D D D D O O O O O M M W W F L L B B B L L L S S C C L L G A O O O L L M M L L L L M M M N N U C R R B W W Locales Figure 1. Abundance and distribution of Clinostomum marginatum (yellow grub) in Arkansas black bass. The locales are designated with respect to lakes, which are preceded by an L and streams that are not preceded by an L, with the exception of the Maumelle Spillway (MS). Locale abbreviations are as follows: Ouachita river (OR), Pre-impounded river forming Beaver Lake (WRNW), 6 Missouri streams in Southwest Missouri (Mo), Crooked Creek (CC) Saline River (SA), Caddo River (CAD), Buffalo River (BUFF), Lake Maumelle (LM), Lake De Gray (LD), Lake Bull Shoals (LBS), Lake Ouachita (LO), and Beaver Lake (LB). The data on Lakes Ouachita, De Gray, Maumelle, Bull shoals and the Maumelle spillway are newly reported here (Table I.). Data from Crooked Creek and Caddo River are from Daly et al 1992, Daly JJ Jr. et al 1999 and Daly et al 2002. Saline River and Ouachita River data are from Daly et al 2007. Data from other locales are as follows: Buffalo River, Kilambi and Becker 1977; Beaver Lake, Becker et al 1978; Missouri streams, Taber 1972. Data from Arkansas streams are an average for all locales on a given stream. Variances for published data and from lake bass can be found in Literature Cited and Table 1. impoundment conditions as reported by Becker et al grub life cycle is missing. Survival of yellow grub 1978. Populations dwindled to zero. In the same depends upon the presence of all three hosts, but the study, another digenetic trematode, proper dispersion of these hosts is also necessary to Posthodiplostomum minimum (white grub), which also affect transmission and keep the reproductive potential uses a planorbid snail and the great blue heron and at a level needed for maintaining the parasite other fish eating birds as hosts, showed an initial population. That snail and fish hosts are present in the decrease in abundance and prevalence after reservoirs is indicated by some level, albeit low, of impoundment but rebounded in the lake after 6 years. yellow grub infections in the bass. Bonett et al 2012, Reservoirs are relatively recent in Arkansas when found that salamanders in a small creek with few fish compared to natural bodies of water. One physical had C. marginatum metacerariae that were a genomic factor is that reservoirs are deep and offer less feeding match for the same forms in largemouth bass from an opportunities for the herons than streams. Ponds and adjacent pond indicating infection was spread by shallower lakes such as those in Minnesota and Lake herons defecating in the stream which may not have Simcoe may provide more shallow feeding areas for been their preferred feeding area based on paucity of the birds. Given that conditions may not be right for fish in the stream. It would seem likely that the low the parasites to develop substantial populations in prevalence of yellow grub in Arkansas reservoir lakes reservoir lakes may mean that unless adaptive changes may also be due to infection of snails by transitory are made (unlikely) then they will continue to be herons that were infected by feeding on contaminated mainly river (and pond) parasites in Arkansas.
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