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Physiological effects of simultaneous, abrupt seawater entry and sea lice (Lepeophtheirus salmonis) infestation of wild, sea-run brown trout (Salmo trutta) smolts

Research output: Contribution to journalArticle

DOI

Standard

Physiological effects of simultaneous, abrupt seawater entry and sea lice (Lepeophtheirus salmonis) infestation of wild, sea-run brown trout (Salmo trutta) smolts. / Wells, Alan; Grierson, Christal E; MacKenzie, Monique Lea; Russon, Iain J; Reinardy, Helena; Middlemiss, Claire; Bjorn, Pal A; Finstad, Bengt; Wendelaar Bonga, Sjoerd E; Todd, Christopher David; Hazon, Neil.

In: Canadian Journal of Fisheries and Aquatic Sciences, Vol. 63, No. 12, 12.2006, p. 2809-2821.

Research output: Contribution to journalArticle

Harvard

Wells, A, Grierson, CE, MacKenzie, ML, Russon, IJ, Reinardy, H, Middlemiss, C, Bjorn, PA, Finstad, B, Wendelaar Bonga, SE, Todd, CD & Hazon, N 2006, 'Physiological effects of simultaneous, abrupt seawater entry and sea lice (Lepeophtheirus salmonis) infestation of wild, sea-run brown trout (Salmo trutta) smolts' Canadian Journal of Fisheries and Aquatic Sciences, vol. 63, no. 12, pp. 2809-2821. https://doi.org/10.1139/F06-160

APA

Wells, A., Grierson, C. E., MacKenzie, M. L., Russon, I. J., Reinardy, H., Middlemiss, C., ... Hazon, N. (2006). Physiological effects of simultaneous, abrupt seawater entry and sea lice (Lepeophtheirus salmonis) infestation of wild, sea-run brown trout (Salmo trutta) smolts. Canadian Journal of Fisheries and Aquatic Sciences, 63(12), 2809-2821. https://doi.org/10.1139/F06-160

Vancouver

Wells A, Grierson CE, MacKenzie ML, Russon IJ, Reinardy H, Middlemiss C et al. Physiological effects of simultaneous, abrupt seawater entry and sea lice (Lepeophtheirus salmonis) infestation of wild, sea-run brown trout (Salmo trutta) smolts. Canadian Journal of Fisheries and Aquatic Sciences. 2006 Dec;63(12):2809-2821. https://doi.org/10.1139/F06-160

Author

Wells, Alan ; Grierson, Christal E ; MacKenzie, Monique Lea ; Russon, Iain J ; Reinardy, Helena ; Middlemiss, Claire ; Bjorn, Pal A ; Finstad, Bengt ; Wendelaar Bonga, Sjoerd E ; Todd, Christopher David ; Hazon, Neil. / Physiological effects of simultaneous, abrupt seawater entry and sea lice (Lepeophtheirus salmonis) infestation of wild, sea-run brown trout (Salmo trutta) smolts. In: Canadian Journal of Fisheries and Aquatic Sciences. 2006 ; Vol. 63, No. 12. pp. 2809-2821.

Bibtex - Download

@article{b0b6f46b0560405ab0c90c21ed9f5e6f,
title = "Physiological effects of simultaneous, abrupt seawater entry and sea lice (Lepeophtheirus salmonis) infestation of wild, sea-run brown trout (Salmo trutta) smolts",
abstract = "For wild, sea-run brown trout (Salmo trutta) smolts, the physiological consequences of abrupt transfer to seawater and simultaneous challenge with copepodid larvae of the sea louse, Lepeophtheirus salmonis (Kroyer, 1837), were investigated in the laboratory. Analysis of osmoregulatory, metabolic, and stress markers allowed the derivation of a sublethal threshold burden of L. salmonis, above which the host suffers major physiological stress. Noticeable lice effects, consistent across all measured markers, were not observed until L. salmonis developed to the mobile preadult and adult stages. Preadult L. salmonis caused significant increases in plasma chloride, osmolality, glucose, lactate, and cortisol and a significant reduction in haematocrit. Piecewise linear statistical approaches allowed the determination of abrupt changes in these physiological markers, attributable to the intensity of L. salmonis infestation on individual fish, and identification of overall threshold lice burdens. Thirteen mobile lice·fish-1 (weight range 19-70 g) was a consistent breakpoint across several physiological measures. This information will provide a valuable, objectively derived tool to aid in the formulation of effective wild fisheries management policy concerning S. trutta conservation.",
keywords = "ATLANTIC SALMON, SALAR L., TRANSPORT STRESS, WESTERN SCOTLAND, POST-SMOLTS, LOUSE, REGRESSION, INFECTION, GROWTH, SELECTION",
author = "Alan Wells and Grierson, {Christal E} and MacKenzie, {Monique Lea} and Russon, {Iain J} and Helena Reinardy and Claire Middlemiss and Bjorn, {Pal A} and Bengt Finstad and {Wendelaar Bonga}, {Sjoerd E} and Todd, {Christopher David} and Neil Hazon",
year = "2006",
month = "12",
doi = "10.1139/F06-160",
language = "English",
volume = "63",
pages = "2809--2821",
journal = "Canadian Journal of Fisheries and Aquatic Sciences",
issn = "0706-652X",
publisher = "National Research Council of Canada",
number = "12",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Physiological effects of simultaneous, abrupt seawater entry and sea lice (Lepeophtheirus salmonis) infestation of wild, sea-run brown trout (Salmo trutta) smolts

AU - Wells, Alan

AU - Grierson, Christal E

AU - MacKenzie, Monique Lea

AU - Russon, Iain J

AU - Reinardy, Helena

AU - Middlemiss, Claire

AU - Bjorn, Pal A

AU - Finstad, Bengt

AU - Wendelaar Bonga, Sjoerd E

AU - Todd, Christopher David

AU - Hazon, Neil

PY - 2006/12

Y1 - 2006/12

N2 - For wild, sea-run brown trout (Salmo trutta) smolts, the physiological consequences of abrupt transfer to seawater and simultaneous challenge with copepodid larvae of the sea louse, Lepeophtheirus salmonis (Kroyer, 1837), were investigated in the laboratory. Analysis of osmoregulatory, metabolic, and stress markers allowed the derivation of a sublethal threshold burden of L. salmonis, above which the host suffers major physiological stress. Noticeable lice effects, consistent across all measured markers, were not observed until L. salmonis developed to the mobile preadult and adult stages. Preadult L. salmonis caused significant increases in plasma chloride, osmolality, glucose, lactate, and cortisol and a significant reduction in haematocrit. Piecewise linear statistical approaches allowed the determination of abrupt changes in these physiological markers, attributable to the intensity of L. salmonis infestation on individual fish, and identification of overall threshold lice burdens. Thirteen mobile lice·fish-1 (weight range 19-70 g) was a consistent breakpoint across several physiological measures. This information will provide a valuable, objectively derived tool to aid in the formulation of effective wild fisheries management policy concerning S. trutta conservation.

AB - For wild, sea-run brown trout (Salmo trutta) smolts, the physiological consequences of abrupt transfer to seawater and simultaneous challenge with copepodid larvae of the sea louse, Lepeophtheirus salmonis (Kroyer, 1837), were investigated in the laboratory. Analysis of osmoregulatory, metabolic, and stress markers allowed the derivation of a sublethal threshold burden of L. salmonis, above which the host suffers major physiological stress. Noticeable lice effects, consistent across all measured markers, were not observed until L. salmonis developed to the mobile preadult and adult stages. Preadult L. salmonis caused significant increases in plasma chloride, osmolality, glucose, lactate, and cortisol and a significant reduction in haematocrit. Piecewise linear statistical approaches allowed the determination of abrupt changes in these physiological markers, attributable to the intensity of L. salmonis infestation on individual fish, and identification of overall threshold lice burdens. Thirteen mobile lice·fish-1 (weight range 19-70 g) was a consistent breakpoint across several physiological measures. This information will provide a valuable, objectively derived tool to aid in the formulation of effective wild fisheries management policy concerning S. trutta conservation.

KW - ATLANTIC SALMON

KW - SALAR L.

KW - TRANSPORT STRESS

KW - WESTERN SCOTLAND

KW - POST-SMOLTS

KW - LOUSE

KW - REGRESSION

KW - INFECTION

KW - GROWTH

KW - SELECTION

UR - http://www.scopus.com/inward/record.url?scp=33947181338&partnerID=8YFLogxK

U2 - 10.1139/F06-160

DO - 10.1139/F06-160

M3 - Article

VL - 63

SP - 2809

EP - 2821

JO - Canadian Journal of Fisheries and Aquatic Sciences

T2 - Canadian Journal of Fisheries and Aquatic Sciences

JF - Canadian Journal of Fisheries and Aquatic Sciences

SN - 0706-652X

IS - 12

ER -

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ID: 326822