Thermal Effect of Acute and Chronic Stress on Hepatic and Renal Tissue of the Pacific Sardine, Sardinops sagax caeruleus (Jenyns, 1842)

SUMMARY: In the thermal range of the Pacific waters, known for the geographical distribution of Sardinops sagax caeruleus(Jenyns, 1842) (Pacific sardine), could be exposed to a stressing temperature environment with dilated effect. This work examines the liver and kidney of sardines acclimated at di...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Hernández-López,Juana R., Hernández-Rodríguez,Mónica, Rivas-Manzano,Patricia, Bückle-Ramirez,L. Fernando
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2018
Materias:	Sardinops sagax caeruleus Temperature stress-induced Histopathology
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022018000100212
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0717-95022018000100212
record_format	dspace
spelling	oai:scielo:S0717-950220180001002122019-09-16Thermal Effect of Acute and Chronic Stress on Hepatic and Renal Tissue of the Pacific Sardine, Sardinops sagax caeruleus (Jenyns, 1842)Hernández-López,Juana R.Hernández-Rodríguez,MónicaRivas-Manzano,PatriciaBückle-Ramirez,L. Fernando Sardinops sagax caeruleus Temperature stress-induced Histopathology SUMMARY: In the thermal range of the Pacific waters, known for the geographical distribution of Sardinops sagax caeruleus(Jenyns, 1842) (Pacific sardine), could be exposed to a stressing temperature environment with dilated effect. This work examines the liver and kidney of sardines acclimated at different temperatures and exposed to the lethal temperature and critical thermal maximum trials. The liver and kidney tissues of Sardinops sagax caeruleus acclimated for 25 days at 19, 21, 23 and 25 °C were anatomically examined after exposure to acute heat stress (AHS) caused by increasing the water temperature at a rate of 1 °C per min, and the chronic heat stress (CHS) effect by abruptly exposure to constant water temperature different from that of acclimation (AT). We observed in fish exposed to AHS that the liver tissue had vacuolated or necrotic hepatocytes and infiltration of inflammatory blood cells (25 °C) and the kidney tissue showed degenerative changes in the glomeruli and renal tubules and increased melanomacrophage centers. The CHS effect in liver and renal tissues produced damage signs of pyknosis, apoptosis, necrotic areas, and an increase in melanomacrophage centers as well as outbreaks of bacterial infection. The results demonstrate that S. sagax caeruleus did not tolerate an abrupt thermal change of more than 4 °C, independently of the ATs, over 50 % died. The consequences of the experimental acute and chronic thermal stress were histopathological alterations of liver and kidney. It was expected that the chronic stress temperature could produce in fish conspicuous histological changes, and indeed it was the most deleterious.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.36 n.1 20182018-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022018000100212en10.4067/S0717-95022018000100212
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Sardinops sagax caeruleus Temperature stress-induced Histopathology
spellingShingle	Sardinops sagax caeruleus Temperature stress-induced Histopathology Hernández-López,Juana R. Hernández-Rodríguez,Mónica Rivas-Manzano,Patricia Bückle-Ramirez,L. Fernando Thermal Effect of Acute and Chronic Stress on Hepatic and Renal Tissue of the Pacific Sardine, Sardinops sagax caeruleus (Jenyns, 1842)
description	SUMMARY: In the thermal range of the Pacific waters, known for the geographical distribution of Sardinops sagax caeruleus(Jenyns, 1842) (Pacific sardine), could be exposed to a stressing temperature environment with dilated effect. This work examines the liver and kidney of sardines acclimated at different temperatures and exposed to the lethal temperature and critical thermal maximum trials. The liver and kidney tissues of Sardinops sagax caeruleus acclimated for 25 days at 19, 21, 23 and 25 °C were anatomically examined after exposure to acute heat stress (AHS) caused by increasing the water temperature at a rate of 1 °C per min, and the chronic heat stress (CHS) effect by abruptly exposure to constant water temperature different from that of acclimation (AT). We observed in fish exposed to AHS that the liver tissue had vacuolated or necrotic hepatocytes and infiltration of inflammatory blood cells (25 °C) and the kidney tissue showed degenerative changes in the glomeruli and renal tubules and increased melanomacrophage centers. The CHS effect in liver and renal tissues produced damage signs of pyknosis, apoptosis, necrotic areas, and an increase in melanomacrophage centers as well as outbreaks of bacterial infection. The results demonstrate that S. sagax caeruleus did not tolerate an abrupt thermal change of more than 4 °C, independently of the ATs, over 50 % died. The consequences of the experimental acute and chronic thermal stress were histopathological alterations of liver and kidney. It was expected that the chronic stress temperature could produce in fish conspicuous histological changes, and indeed it was the most deleterious.
author	Hernández-López,Juana R. Hernández-Rodríguez,Mónica Rivas-Manzano,Patricia Bückle-Ramirez,L. Fernando
author_facet	Hernández-López,Juana R. Hernández-Rodríguez,Mónica Rivas-Manzano,Patricia Bückle-Ramirez,L. Fernando
author_sort	Hernández-López,Juana R.
title	Thermal Effect of Acute and Chronic Stress on Hepatic and Renal Tissue of the Pacific Sardine, Sardinops sagax caeruleus (Jenyns, 1842)
title_short	Thermal Effect of Acute and Chronic Stress on Hepatic and Renal Tissue of the Pacific Sardine, Sardinops sagax caeruleus (Jenyns, 1842)
title_full	Thermal Effect of Acute and Chronic Stress on Hepatic and Renal Tissue of the Pacific Sardine, Sardinops sagax caeruleus (Jenyns, 1842)
title_fullStr	Thermal Effect of Acute and Chronic Stress on Hepatic and Renal Tissue of the Pacific Sardine, Sardinops sagax caeruleus (Jenyns, 1842)
title_full_unstemmed	Thermal Effect of Acute and Chronic Stress on Hepatic and Renal Tissue of the Pacific Sardine, Sardinops sagax caeruleus (Jenyns, 1842)
title_sort	thermal effect of acute and chronic stress on hepatic and renal tissue of the pacific sardine, sardinops sagax caeruleus (jenyns, 1842)
publisher	Sociedad Chilena de Anatomía
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022018000100212
work_keys_str_mv	AT hernandezlopezjuanar thermaleffectofacuteandchronicstressonhepaticandrenaltissueofthepacificsardinesardinopssagaxcaeruleusjenyns1842 AT hernandezrodriguezmonica thermaleffectofacuteandchronicstressonhepaticandrenaltissueofthepacificsardinesardinopssagaxcaeruleusjenyns1842 AT rivasmanzanopatricia thermaleffectofacuteandchronicstressonhepaticandrenaltissueofthepacificsardinesardinopssagaxcaeruleusjenyns1842 AT buckleramirezlfernando thermaleffectofacuteandchronicstressonhepaticandrenaltissueofthepacificsardinesardinopssagaxcaeruleusjenyns1842
_version_	1718445037109379072

Thermal Effect of Acute and Chronic Stress on Hepatic and Renal Tissue of the Pacific Sardine, Sardinops sagax caeruleus (Jenyns, 1842)

Ejemplares similares