Dorsal aorta catheterization in rainbow trout (Salmo gairdneri). II. Glucocorticoid levels, hematological data and resumption of feeding for five days after surgery

Bry, C.; Zohar, Yonathan

doi:10.1051/rnd:19801008

Cited by 31 publications

(11 citation statements)

References 25 publications

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“…This could reflect the anaesthesia and surgical preparation of these fish, as such manipulations have been reported to elevate plasma cortisol (Donaldson, 1981;Brown et al, 1986b). However, while plasma cortisol is elevated immediately after surgery, in the rainbow trout levels fell rapidly and were generally stable after 3 days (Bry & Zohar, 1980). Our preliminary studies of the brown trout show a similar pattern with levels rapidly declining to stabilize at the somewhat high levels reported here.…”

Section: Discussionsupporting

confidence: 68%

Cortisol and thyroid hormone responses to acid stress in the brown trout, Salmo trutta L.

Brown

Edwards

Whitehead

1989

Journal of Fish Biology

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Individual cannulated brown trout monitored during exposure to acidic water showed increased plasma cortisol after 3 h at pH 4.0 with low (0.05 mM) or high (2.8 mM) calcium (Ca) content, and after 2 days in acidic water with a high Ca content. Most fish did not survive for 2 days in acidic water with a low Ca content. Non-cannulated fish showed a similar increase in mean plasma cortisol after 2 days in high-Ca acidic water (pH 4.W.6). but not in acidic water of a low Ca content. After 7 days of exposure to acidic water, plasma cortisol appeared to recover when there was a high Ca content but increased 20-fold when Ca content was low. In cannulated fish severe acid stress resulted in a marked and rapid thyroid response. Plasma thyroxine (T,) was elevated after 3 h exposure to acidic water of both low and high Ca content and remained elevated for 2 days of acid exposure with high Ca. In non-cannulated fish an increase in mean T, was apparent only after 7 days in low-Ca acidic water. Plasma triiodothyronine (T,) levels were not significantly altered by any of the acid regimes. Plasma glucose of cannulated fish was elevated within 3 h of acid-exposure and remained elevated after 2 days in highCa acidic water.

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Section: Discussionsupporting

confidence: 68%

Cortisol and thyroid hormone responses to acid stress in the brown trout, Salmo trutta L.

Brown

Edwards

Whitehead

1989

Journal of Fish Biology

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“…1), indicating a possible stress response due to repetitive sampling. Brown et al (1986), Bry (1982 and Bry and Zohar (1980) reported increased cortisol levels in serially bled rainbow trout, possibly due to blood removal. The significantly lower cortisol levels at 3 and 6h in the immediate treatment fish compared with the delayed treatment fish (Fig.…”

Section: Experiments 2 Effect Of Serial Sampling On the Stress Responsementioning

confidence: 99%

“…Researchers using channel catfish (Limsuwan et al 1983), red drum (Sciaenops ocellatus; Robertson et al 1988), striped bass (Morone saxatilis; Davis et al 1982), and chinook salmon v (Oncorhynchus tshawytscha; Strange and Schreck 1978) reported that rapid anesthetization prior to handling reduced the stress response to subsequent stressors compared with non-anesthetized fish. Bry and Zohar (1980) reported increased cortisol levels at 30 min to 6h post-surgery in 4 out of 6 cannulated rainbow trout. All fish but one had a rapid decrease in cortisol to pre-surgery levels similar to the results seen in the delayed treatment in our study (Fig.…”

Section: Experiments 2 Effect Of Serial Sampling On the Stress Responsementioning

confidence: 99%

Effects of dorsal aorta cannulation on the stress response of channel catfish (Ictalurus punctatus)

Mazik

Plakas

Stehly

1994

Fish Physiol Biochem

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The stress response to dorsal aorta cannulation and serial blood sampling was examined in the channel catfish Ictalurus punctatus. Channel catfish cannulated and repetitively sampled once a day for 7 days did not exhibit a change in response to surgery or to the 24h sample regime as measured by plasma cortisol, glucose, and chloride. In fish that were either serially bled (0, 1, 3, 6, 9, 12, 24, and 48h) immediately after surgery or allowed to recover 6 days before being serially bled, overall plasma cortisol levels were higher than those of fish bled every 24h. Catfish serially bled immediately after surgery had significantly higher plasma glucose levels compared with catfish allowed to recover from surgery 6 days before serial sampling. Although channel catfish recover from cannulation surgery in 24h, a longer recovery period may be needed prior to serial sampling if the samples are taken more frequently than every 24h.

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“…Anaesthesia (MS-222) has also been shown to affect glucose levels in brook and rainbow trout only after several minutes of exposure (Houston et al, 1971;Soivio et al, 1977). Plasma cortisol and chloride levels were only moderately affected by handling and MS-222 (Wedemeyer, 1970;Strange & Schreck, 1978;Bry & Zohar, 1980;Barton et al, 1980). To minimize any handling or anaesthesia effects, all fish were sampled between 1 100 and 1300 h in exactly the same manner and in less than 3 min.…”

Section: Experimental Animalsmentioning

confidence: 99%

Biochemical indicators of thermal stress in Tilapia aurea (Steindachner)

Kindle

Whitmore

1986

Journal of Fish Biology

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Tilapia aurea muscle and liver adenylate nucleotides, the adenylate energy charge (EC), plasma glucose, cortisol and chloride were monitored during acute and chronic temperature stress. Muscle EC is unaffected during acute cold water exposure but decreases significantly when tilapia are exposed to chronic, sublethal, low temperature stress. The decrease in EC is primarily the result of a decrease in ATP concentration. Plasma glucose and cortisol increase when tilapia are exposed to 11-12" C for 60 min, 11 days, and a 5-week period. Incomplete compensation is evident in 5-week acclimated fish since glucose and cortisol levels are intermediate between controls and acutely stressed fish. Acclimation to 35" C does not significantly affect plasma glucose and cortisol compared to controls (22" C). Plasma chloride is relatively unaffected by acute and chronic temperature stress. Liver adenylates are not significantly affected when tilapia are subjected to a sudden drop in water temperature (22" down to 11" C). EC is a useful indicator of chronic low temperature stress in T. aurea, while plasma glucose and cortisol are sensitive to both acute and chronic temperature stress.

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Dorsal aorta catheterization in rainbow trout (Salmo gairdneri). II. Glucocorticoid levels, hematological data and resumption of feeding for five days after surgery

Abstract: Summary. Plasma

Cited by 31 publications

References 25 publications

Cortisol and thyroid hormone responses to acid stress in the brown trout, Salmo trutta L.

Cortisol and thyroid hormone responses to acid stress in the brown trout, Salmo trutta L.

Effects of dorsal aorta cannulation on the stress response of channel catfish (Ictalurus punctatus)

Biochemical indicators of thermal stress in Tilapia aurea (Steindachner)

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