Effects of substrate size and cleaning regime on growth and survival of captive-bred juvenile freshwater pearl mussels, Margaritifera margaritifera (Linnaeus, 1758)

Hdl Handle:
http://hdl.handle.net/10545/584275
Title:
Effects of substrate size and cleaning regime on growth and survival of captive-bred juvenile freshwater pearl mussels, Margaritifera margaritifera (Linnaeus, 1758)
Authors:
Lavictoire, Louise; Sinclair, William; Sweeting, Roger A.; Moorkens, Evelyn ( 0000-0002-9701-5027 ) ; Ramsey, Andrew ( 0000-0002-5550-9977 )
Abstract:
The freshwater pearl mussel is critically endangered and most English populations are at risk of extinction unless conservation measures are implemented immediately. The study objectives were to test a culture system for rearing Margaritifera margaritifera in captivity, and to investigate the effects of substrate size (0.25–1 and 1–2 mm) and cleaning regime (weekly and monthly) on survival and growth. In total, 1207 and 518 juveniles were reared to 362 (12 months) and 758 days (25 months), respectively. After 362 days, survival was significantly higher in 1–2 mm substrate treatments cleaned monthly (55 ± 6 %) and lowest in 0.25–1 mm substrate cleaned weekly (14 ± 3 %). Growth was significantly higher in 1–2 mm substrates cleaned weekly (length = 1.15 ± 0.21 mm) and lowest in 0.25–1 mm substrates cleaned monthly (length = 0.83 ± 0.23 mm). Juveniles from most treatments did not display sizedependent over-winter survival, but a significant correlation was found between shell length and survival in the 0.25–1 mm weekly treatment. This low-maintenance system utilised features of previously described systems and growth and survival rates were comparable to, if not better than, other studies culturing M. margaritifera. The system could be scaled up to rear significant numbers of juveniles in captivity.
Affiliation:
University of Derby
Citation:
LAVICTOIRE, L., MOORKENS, E., RAMSEY, A., SINCLAIR, W. & SWEETING, R. 2015. Effects of substrate size and cleaning regime on growth and survival of captive-bred juvenile freshwater pearl mussels, Margaritifera margaritifera (Linnaeus, 1758). Hydrobiologia, 1-14.
Publisher:
Springer
Journal:
Hydrobiologia
Issue Date:
4-Sep-2015
URI:
http://hdl.handle.net/10545/584275
DOI:
10.1007/s10750-015-2445-4
Additional Links:
http://link.springer.com/10.1007/s10750-015-2445-4
Type:
Article
Language:
en
ISSN:
0018-8158; 1573-5117
Appears in Collections:
Environmental Sustainability Research Centre

Full metadata record

DC FieldValue Language
dc.contributor.authorLavictoire, Louiseen
dc.contributor.authorSinclair, Williamen
dc.contributor.authorSweeting, Roger A.en
dc.contributor.authorMoorkens, Evelynen
dc.contributor.authorRamsey, Andrewen
dc.date.accessioned2015-12-21T11:20:58Zen
dc.date.available2015-12-21T11:20:58Zen
dc.date.issued2015-09-04en
dc.identifier.citationLAVICTOIRE, L., MOORKENS, E., RAMSEY, A., SINCLAIR, W. & SWEETING, R. 2015. Effects of substrate size and cleaning regime on growth and survival of captive-bred juvenile freshwater pearl mussels, Margaritifera margaritifera (Linnaeus, 1758). Hydrobiologia, 1-14.en
dc.identifier.issn0018-8158en
dc.identifier.issn1573-5117en
dc.identifier.doi10.1007/s10750-015-2445-4en
dc.identifier.urihttp://hdl.handle.net/10545/584275en
dc.description.abstractThe freshwater pearl mussel is critically endangered and most English populations are at risk of extinction unless conservation measures are implemented immediately. The study objectives were to test a culture system for rearing Margaritifera margaritifera in captivity, and to investigate the effects of substrate size (0.25–1 and 1–2 mm) and cleaning regime (weekly and monthly) on survival and growth. In total, 1207 and 518 juveniles were reared to 362 (12 months) and 758 days (25 months), respectively. After 362 days, survival was significantly higher in 1–2 mm substrate treatments cleaned monthly (55 ± 6 %) and lowest in 0.25–1 mm substrate cleaned weekly (14 ± 3 %). Growth was significantly higher in 1–2 mm substrates cleaned weekly (length = 1.15 ± 0.21 mm) and lowest in 0.25–1 mm substrates cleaned monthly (length = 0.83 ± 0.23 mm). Juveniles from most treatments did not display sizedependent over-winter survival, but a significant correlation was found between shell length and survival in the 0.25–1 mm weekly treatment. This low-maintenance system utilised features of previously described systems and growth and survival rates were comparable to, if not better than, other studies culturing M. margaritifera. The system could be scaled up to rear significant numbers of juveniles in captivity.en
dc.language.isoenen
dc.publisherSpringeren
dc.relation.urlhttp://link.springer.com/10.1007/s10750-015-2445-4en
dc.rightsArchived with thanks to Hydrobiologiaen
dc.subjectMargaritiferaen
dc.subjectCaptive rearingen
dc.subjectLow-maintenance syatemen
dc.subjectMussel conservationen
dc.titleEffects of substrate size and cleaning regime on growth and survival of captive-bred juvenile freshwater pearl mussels, Margaritifera margaritifera (Linnaeus, 1758)en
dc.typeArticleen
dc.contributor.departmentUniversity of Derbyen
dc.identifier.journalHydrobiologiaen
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