Effects of salinity gradients on the tolerance and bioenergetics of juvenile blue crabs (Callinectes sapidus) from waters of different environmental salinities

Guerin, J. L.; Stickle, William B.

doi:10.1007/bf00350029

Cited by 74 publications

(28 citation statements)

References 24 publications

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“…Identical observations were made by Jakubowska & Normant (2011) and Normant et al (2012) for the Chinese mitten crab. Moreover, similar values of R/A and P/A ratios were obtained for the lesser blue crab Callinectes similis (Guerin & Stickle 1992) and the white shrimp Litopenaeus setiferus (Sãnchez et al 2002), i.e. 0.2:1.0 and 0.8:1.0, and 0.2:1.0 and 0.7:1.0, respectively.…”

Section: Discussionsupporting

confidence: 75%

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Effect of temperature on physiology and bioenergetics of adult Harris mud crab Rhithropanopeus harrisii (Gould, 1841) from the southern Baltic Sea

Hegele-Drywa

Normant

2014

Oceanological and Hydrobiological Studies

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Rates of physiological processes and bioenergetics of the Harris mud crab Rhithropanopeus harrisii were determined during a 7-day experiment on adult males (mean wet weight 0.83 ± 0.16 g) exposed to temperatures of 15ºC and 20ºC (S = 7). The results show that the change in temperature by 5ºC caused detectable changes in locomotor activity, food consumption and faeces production and significant (p < 0.05) changes in metabolic rates. Food assimilation efficiency and the ammonia excretion rate did not change significantly (p > 0.05). The energy expended on metabolic processes was similar at both temperatures (15ºC and 20ºC) and amounted to 17.7 ± 6.4% and 16.7 ± 4.3% of the assimilated energy, respectively. Similar values were obtained for net production efficiency K2 (P/A) at 15ºC and 20ºC, i.e. 80.4 ± 22.4% and 82.9 ± 9.7%, respectively. The amount of energy available for production was 2-fold higher at a temperature of 20ºC than at 15ºC and amounted to 103.69 ± 25.61 and 206.40 ± 20.76 J d -1 g -1 wet wt, respectively. The results show that from the bioenergetic point of view, higher experimental temperature is more "profitable" for adult R. harrisii specimens because it provides better conditions for the growth and reproduction.

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Section: Discussionsupporting

confidence: 75%

“…at physiological and biochemical levels. Furthermore, according to literature the largest amounts of energy for the growth and reproduction are available in environmental conditions to which organisms are adapted (Guerin & Stickle 1992, Sãnchez et al 2002, Normant & Lamprecht 2006, Hulathduwa et al 2007.…”

Section: Discussionmentioning

confidence: 99%

Effect of temperature on physiology and bioenergetics of adult Harris mud crab Rhithropanopeus harrisii (Gould, 1841) from the southern Baltic Sea

Hegele-Drywa

Normant

2014

Oceanological and Hydrobiological Studies

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“…Methods such as scope for growth (SFG) have long been used to indicate anthropogenic stress in marine and estuarine areas (e.g., Widdows and Johnson, 1988). However, Navarro (1988) and Guerin and Stickle (1992) both indicate the way in which salinity stress, through natural freshwater inputs, reduces energetic budgets.…”

Section: Recovery 14)mentioning

confidence: 99%

Classifying Ecological Quality and Integrity of Estuaries

Borja¹,

Basset²,

Bricker³

et al. 2011

Treatise on Estuarine and Coastal Science

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There is an increasing need in assessing ecological quality and integrity of estuaries and lagoons. This chapter shows the most recent efforts in assessing individual biological elements (from phytoplankton to fishes), together with the integrative tools developed in different geographical areas worldwide. However, reducing complex information from multiple ecosystem elements to a single color or value is a substantial challenge to marine scientists, and requires the integration of different disciplines (chemists, engineers, biologists, ecologists, physics, managers, etc.), to reach agreement on the final assignment of ecological status. Hence, in the near future, emphasis needs to be directed at understanding the complexities of estuarine system functioning rather than simplifying and scaling down the system into smaller components. Provided for non-commercial research and educational use.Not for reproduction, distribution or commercial use.This chapter was originally published in Treatise on Estuarine and Coastal Science, published by Elsevier, and the attached copy is provided by Elsevier for the author's benefit and for the benefit of the author's institution, for noncommercial research and educational use including without limitation use in instruction at your institution, sending it to specific colleagues who you know, and providing a copy to your institution's administrator.All other uses, reproduction and distribution, including without limitation commercial reprints, selling or licensing copies or access, or posting on open internet sites, your personal or institution's website or repository, are prohibited.For exceptions, permission may be sought for such use through Elsevier's permissions site at: Author's personal copy AbstractThere is an increasing need in assessing ecological quality and integrity of estuaries and lagoons. This chapter shows the most recent efforts in assessing individual biological elements (from phytoplankton to fishes), together with the integrative tools developed in different geographical areas worldwide. However, reducing complex information from multiple ecosystem elements to a single color or value is a substantial challenge to marine scientists, and requires the integration of different disciplines (chemists, engineers, biologists, ecologists, physics, managers, etc.), to reach agreement on the final assignment of ecological status. Hence, in the near future, emphasis needs to be directed at understanding the complexities of estuarine system functioning rather than simplifying and scaling down the system into smaller components.

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“…With the increase in respiratory and cardiovascular studies, a pattern is now emerging, to which many decapod crustaceans conform. The efficient osmoregulators remain active, increasing cardiac and respiratory parameters (Dehnel, 1960;King, 1965;Engel et al, 1975;Hume and Berlind, 1976;Cumberlidge and Uglow, 1977;Taylor, 1977;Spaargaren, 1982;Guerin and Stickle, 1992;McGaw and Reiber, 1998). Weaker regulators tend to become inactive (Sugarman et al, 1983;McGaw et al, 1999) and show no change in oxygen uptake (Brown and Terwilliger, 1999) and mixed cardiac responses (McGaw and McMahon, 1996;McGaw and McMahon, 2003;McGaw, 2006a;Dufort et al, 2001).…”

Section: Feeding and Low Salinitymentioning

confidence: 99%

“…The most common response to low salinity is a pronounced tachycardia (Hume and Berlind, 1976;Cumberlidge and Uglow, 1977;Spaargaren, 1982;McGaw and McMahon, 1996;McGaw and McMahon, 2003;McGaw and Reiber, 1998;Dufort et al, 2001;McGaw, 2006a). This is coupled with an increase in oxygen uptake (Dehnel, 1960;King, 1965;Engel et al, 1975;Taylor, 1977;Guerin and Stickle, 1992;Jury et al, 1994), which is driven by an increased scaphognathite beat frequency (McGaw and McMahon, 1996;Dufort et al, 2001). These changes are thought to reflect an increased energy requirement for active ion uptake (Taylor, 1977;Jury et al, 1994) as well as increased activity levels of crabs in low salinity (McGaw et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Feeding and digestion in low salinity in an osmoconforming crab, Cancer gracilis I. Cardiovascular and respiratory responses

McGaw

2006

Journal of Experimental Biology

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SUMMARY The osmoregulatory physiology of decapod crustaceans has received extensive attention. Within this field there is a growing body of literature on cardiovascular and respiratory responses to low salinity. Most species exhibit a tachycardia coupled with an increase in ventilation rate and oxygen uptake. However, these previous experiments were conducted on animals that were starved prior to experimentation in order to avoid increases in metabolism associated with digestive processes. Because organisms are not necessarily starved prior to experiencing environmental perturbations, results from previous experiments may not represent natural physiological responses. The present study investigated how an osmoconforming decapod, the graceful crab Cancer gracilis, balanced the demands of physiological systems(prioritization or additivity of events) during feeding and digestion in a low salinity environment. Cancer gracilis exhibited a typical increase in oxygen uptake and less pronounced increases in cardiovascular variables (heart rate, stroke volume, cardiac output) during feeding in 100% seawater. In 3-day starved crabs, exposure to 65% seawater resulted in a pronounced bradycardia,with a concomitant decrease in cardiac output and haemolymph flow rates and a temporary decrease in oxygen uptake. When crabs were exposed to low salinity,3 h and 24 h after food ingestion, heart rate increased slightly and cardiac output and ventilation rates remained stable. Although oxygen uptake decreased transiently, feeding levels were quickly regained. During a recovery phase in 100%SW there was an overshoot in parameters, suggesting repayment of an oxygen debt. Thus, it appears that feeding and digestion are prioritized in this species, allowing it to survive acute exposure to hyposaline water. Furthermore, the results show that the nutritional state of an animal is important in modulating its physiological responses to environmental perturbations. This underscores the importance of studying physiological responses at the whole organism level under conditions closely approximating those of the natural environment.

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Effects of salinity gradients on the tolerance and bioenergetics of juvenile blue crabs (Callinectes sapidus) from waters of different environmental salinities

Cited by 74 publications

References 24 publications

Effect of temperature on physiology and bioenergetics of adult Harris mud crab Rhithropanopeus harrisii (Gould, 1841) from the southern Baltic Sea

Effect of temperature on physiology and bioenergetics of adult Harris mud crab Rhithropanopeus harrisii (Gould, 1841) from the southern Baltic Sea

Classifying Ecological Quality and Integrity of Estuaries

Feeding and digestion in low salinity in an osmoconforming crab, Cancer gracilis I. Cardiovascular and respiratory responses

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