The effects of starvation on the respiration and major nutrient stores of thais lamellosa

Stickle, William B.; Duerr, Frederick G.

doi:10.1016/0010-406x(70)90379-8

Cited by 40 publications

(11 citation statements)

References 11 publications

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“…An exception to this is starvation stress, which has been well studied in marine invertebrates especially with respect to its effect on tissue metabolite levels (e.g. Emerson 1967, Stickle and Duerr 1970, Hiller-Adams and Childress 1983. In aplysiids, starvation stress leads to a depressed metabolic rate accompanied by low blood-sugar levels and to exhaustion of digestive-gland glycogen stores after only I to 2 wk, depending on the temperature (Young 1990, Carefoot et al 1993.…”

Section: Discussionmentioning

confidence: 99%

Effects of environmental stressors on blood-glucose levels in sea hares, Aplysia dactylomela

Carefoot

1994

Marine Biology

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Abstract. Effects of natural stressors such as tidepool strandings, air exposure, and low salinity on blood-glucose levels were investigated in the sea hare Aplysia dactylomela from shallow areas of Discovery Bay, Jamaica. All treatments produced large and significant elevations in blood-glucose titre, 1.5-to 2.3-fold above baseline levels of 25 to 35 gg glucose ml-1. Response times were variable, with significant elevations being manifested within 30 to 120 min from initiation of the stressor. Recovery was swift, within an hour or two of restoration to pretreatment conditions, and often involved an undershoot to levels below control values. In two experiments involving tidepool strandings and associated high body-temperatures, excessively low blood-glucose titres were followed by death of all test individuals. When sea hares were exposed to 75 and 50% seawater (100% = 33%o S) for 1 h, maximum elevation in blood-glucose concentrations occurred I to 2 h from onset of exposure, coincidental with maximum dilution of the body fluids of test individuals. The responsiveness of blood-glucose titres to relatively small temperature or salinity changes, or to short-duration air exposures, suggests that monitoring this physiological parameter may be a useful and sensitive means of diagnosing a wide variety of stressors in marine gastropods.

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Section: Discussionmentioning

confidence: 99%

Effects of environmental stressors on blood-glucose levels in sea hares, Aplysia dactylomela

Carefoot

1994

Marine Biology

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“…Pulmonate and prosobranch snails differ from each other not only morphologicalIy but also-in an equally fundamental metabolic way (Stickle and Duerr 1970).…”

Section: Discussionmentioning

confidence: 99%

“…A good quantity of information is available on the effect of starvation stress in molluscs (Martin and Goddard 1966;Giese 1966;Emerson and Duerr 1967;Stickle and Duerr 1970). Interestingly, some of the gastropods show polysaccharide-oriented metabolism (Barry and Munday 1959) whereas in other gastropods, it is lipid-oriented (Stickle and Duerr 1970).…”

Section: Introductionmentioning

confidence: 99%

“…Several investigations on the starvation metabolism of gastropod molluscs revealed that, though there is a preferential utilisation of one particular body reserve during the course of starvation typical for a particular species Stickle and Duerr 1970;Ricardo and Brennes 1981), the other products also are being utilised equally or to a lesser extent. Thus work was done on several types of snails where specifications exist among the various types of gastropods.…”

Section: Introductionmentioning

confidence: 99%

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Starvation as a stress factor influencing the metabolism of a tropical intertidal gastropodMorula granulata (Duclos)

Devi

Rao

1986

Proc. Indian Acad. Sci. (Anim. Sci.)

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The snail Morula granulata (Duclos) survived the starvation stress over a period of 30 days but 50% mortality occurred on the 70th day. The changes in the level and content of different biochemical constituents viz carbohydrates, glycogen, Cree sugars, protein, total ninhydrin positive substances and lipids were investigated in foot, gonad digestive gland complex and viscera of the animal at intervals of 10 days up to 70 days. All these biochemical constituents (both level and content) were Cound to decrease with the period of starvation showing their utilisation except total ninhydrin positive substances which exhibited an increase. OC all the 3 tissues, the gonad digestive gland complex was affected most during starvation. 'Lipid-oriented' metabolism was observed in this animal showing maximum utilisation of lipids during starvation. Respiratory studies revealed a decreased pattern of oxygen consumption with increasing period or starvation when calculated per snaii or per tissue weight The recalculated intercept values (a) also showed a decreasing trend when exposed to starvation.

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“…Under this condition the reserve food energy within the body is utilized in order to make good the difference between ration and respiratory loss (see Bayne 1973). Studies on the effect of starvation on metabolism of molluscs are well documented (Martin and Goddard 1966;Emerson 1967;Emerson and Duerr 1967;Stickle and Duerr 1970;Uma Devi et al1986), but that on food utilization is meagre (Haniffa and Mullainathan 1982). The present work examines the effects of starvation on mortality, weight loss and food utilization in a freshwater snail Pi/a qiobosa.…”

Section: Introductionmentioning

confidence: 99%

Effect of starvation on food utilization in the freshwater snailPila globosa (Swainson)

Haniffa

1987

Proc. Indian Acad. Sci. (Anim. Sci.)

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The effects of starvation on the respiration and major nutrient stores of thais lamellosa

Cited by 40 publications

References 11 publications

Effects of environmental stressors on blood-glucose levels in sea hares, Aplysia dactylomela

Effects of environmental stressors on blood-glucose levels in sea hares, Aplysia dactylomela

Starvation as a stress factor influencing the metabolism of a tropical intertidal gastropodMorula granulata (Duclos)

Effect of starvation on food utilization in the freshwater snailPila globosa (Swainson)

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