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dc.contributor.author
Paolucci, Esteban Marcelo
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dc.contributor.author
Thuesen, Erik V.
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dc.date.available
2021-04-16T14:58:56Z
dc.date.issued
2020-01
dc.identifier.citation
Paolucci, Esteban Marcelo; Thuesen, Erik V.; Effects of osmotic and thermal shock on the invasive aquatic mudsnail Potamopyrgus antipodarum: Mortality and physiology under stressful conditions; Pensoft Publishers; NeoBiota; 54; 1-2020; 1-22
dc.identifier.issn
1619-0033
dc.identifier.uri
http://hdl.handle.net/11336/130202
dc.description.abstract
Invasive freshwater species, such as the exotic mollusc Potamopyrgus antipodarum (New Zealand mudsnail), can frequently survive under harsh conditions, including brackish and hypoxic environments. We experimentally assessed the effects of osmotic (0, 10, 20, 25 and 30 psu) and thermal (20 °C) shock on mortality, activity and physiology of P. antipodarum collected at Capitol Lake, Olympia, Washington, USA, during winter and spring seasons when environmental temperature was 5 and 10 °C respectively. We measured standard metabolic rate and enzymatic activities (malate dehydrogenase, lactate dehydrogenase, alanopine dehydrogenase) in snails after a 10-day acclimation period at high salinity. Significantly higher mortalities were observed at higher salinities; the strongest effects occurred on snails collected at the end of winter, and exposed to 30 psu and 20 °C (100% mortality in 3 days). When snails were collected during the spring, 100% mortality was observed after 40 days at 30 psu and 20 °C. Standard metabolic rates were significantly lower when snails were exposed to salinities of 25 and 30 psu, even after 10 days of acclimation. Enzymatic activities showed small but significant declines after 10 days at 30 psu reflecting the declines observed in overall metabolism. The physiological tolerances to temperature and salinity displayed by this population of P. antipodarum make its eradication from Capital Lake difficult to achieve.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Pensoft Publishers
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ECOPHYSIOLOGY
dc.subject
ENZYMATIC ACTIVITY
dc.subject
INVASIVE SPECIES
dc.subject
MORTALITY
dc.subject
NEW ZEALAND MUDSNAIL
dc.subject
SALINITY
dc.subject.classification
Biología Marina, Limnología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Effects of osmotic and thermal shock on the invasive aquatic mudsnail Potamopyrgus antipodarum: Mortality and physiology under stressful conditions
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-02-18T15:44:33Z
dc.identifier.eissn
1314-2488
dc.journal.volume
54
dc.journal.pagination
1-22
dc.journal.pais
Bulgaria
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dc.journal.ciudad
Sofía
dc.description.fil
Fil: Paolucci, Esteban Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
dc.description.fil
Fil: Thuesen, Erik V.. The Evergreen State College; Estados Unidos
dc.journal.title
NeoBiota
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://neobiota.pensoft.net/article/39465/
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3897/neobiota.54.39465
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