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Richardson_etal_Mate Availability_Snail Reproduction_DATA.xlsx (25.15 kB)

Data from: Effects of mate availability on egg production in the marsh ramshorn snail, Planorbella trivolvis, and ghost ramshorn snail, Biomphalaria havanensis

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posted on 2024-01-24, 23:20 authored by Bradley RichardsonBradley Richardson, Charles C. Mischke, Matt J. Griffin, David J. Wise

Pulmonate snails are the first intermediate host in the life cycle of Bolbophorus damnificus, an important digenetic trematode in Mississippi catfish aquaculture. Two species, the marsh ramshorn snail Planorbella trivolvis and the ghost ramshorn snail Biomphalaria havanensis, commonly inhabit commercial catfish ponds in northwest Mississippi, USA. Low-level, repeated applications of copper sulfate have negative effects on snail reproduction and are effective in reducing snail populations in commercial catfish ponds, although they must be applied judiciously to minimize the phytotoxic and ichthyotoxic effects of copper. At present, little is known regarding population dynamics of these snails and underlying mechanisms driving their proliferation in catfish aquaculture ponds. This study investigated effects of mate availability on egg production in both snail species. Twelve individuals of each species were assigned to one of three treatments based on access to potential mates: continuously (“control”), weekly (“cyclic”), or at a single timepoint (“solitary”). Eggs were collected weekly, and the number of clutches, eggs, and non-viable eggs counted. The study ended at 21 weeks, one week after the final B. havanensis had died. More than 93,000 eggs were counted during the study, with over 60% from P. trivolvis.


Mississippi State University Catfish Production Project 6066-31320-007-000D

USDA-ARS: 6066-31000-016-000D


Data contact name

Richardson, Bradley M.

Data contact email


Ag Data Commons

Intended use

This data provides baseline information on reproductive output of two aquatic snails in laboratory conditions. As all snail are taken from colonies that have been reared in laboratory conditions for several generations and, as such, should be free of parasites, this data may be used for comparative studies investigating reproductive output of diseased or parasitized individuals in similar conditions.

Use limitations

As data were collected from laboratory snails, and using laboratory conditions, they should not be used as direct estimators of snail reproduction or survivability in field studies, though they may provide a basic framework for preliminary estimates. Snail density may also influence reproductive output and should be taken into account. Finally, observations took place once per week throughout the study, so the exact day/time of mortality is largely unknown. This also means that if a snail died within a given week, the exact reproductive output contributed to that snail, for that week, cannot always be discerned.

Temporal Extent Start Date


Temporal Extent End Date



  • asNeeded


  • Non-geospatial

ISO Topic Category

  • farming
  • environment
  • biota

National Agricultural Library Thesaurus terms

egg production; marshes; snails; Planorbella; Biomphalaria; intermediate hosts; Trematoda; Mississippi; fish culture; catfish; ponds; copper sulfate; phytotoxicity; copper; population dynamics; eggs; reproductive performance; laboratory experimentation; rearing; parasites; comparative study; parasitism; mortality

OMB Bureau Code

  • 005:18 - Agricultural Research Service

OMB Program Code

  • 005:040 - National Research

ARS National Program Number

  • 106

Pending citation

  • Yes

Public Access Level

  • Public