Desiccation resistance in <i>Sphaerium occidentale</i> and <i>Musculium securis</i> (Bivalvia: Sphaeriidae) from a temporary pond

McKee, P. M.; Mackie, Gerry

doi:10.1139/z80-231

Cited by 22 publications

(9 citation statements)

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“…Sphaerium occidentale collected from a dry pond was at least 10 times more resistant to desiccation than that from the flooded pond. This seems a natural adaptation to desiccation prior to the drying of the pond ( McKee & Mackie 1980).…”

Section: Discussionmentioning

confidence: 99%

Effect of temperature and relative humidity on the tolerance of the Japanese clam, Ruditapes philippinarum (Adams & Reeve), to air exposure

Ali

Nakamura

1999

Aquaculture Research

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Laboratory studies showed that higher relative humidity (RH) and lower air temperature increase the tolerance of the Japanese clam, Ruditapes philippinarum (Adams & Reeve), to exposure. Aerial respiration of the clam was also measured. At high RH, the exposure time which gave 50% survival (LT 50 ) was 1.97 and 1.75 times longer than in low RH at air temperatures of 15 and 25°C, respectively. At 15°C, all clams previously acclimatized at 15°C survived for 58 h at low RH and 102 h at high RH. These differences can potentially be exploited to improve the shipment of clams. The aerial respiration experiment showed that the increase of the oxygen consumption rate at 25°C was greater than that at 15°C, following an increase in exposure time. The aerial respiration rates of the clams were » 41.6% and 50.0% of those in water at 25 and 15°C, respectively. The survival of the clams in air was dependent on aerobic rather than anaerobic respiration.

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Section: Discussionmentioning

confidence: 99%

Effect of temperature and relative humidity on the tolerance of the Japanese clam, Ruditapes philippinarum (Adams & Reeve), to air exposure

Ali

Nakamura

1999

Aquaculture Research

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“…For example, Coleoptera including active Agabus adults were observed pre-rehydration in sediments that had dried 4.8 months previously; these dytiscid adults typically obtain oxygen from air and have a relatively impermeable cuticle that reduces water loss (Holdgate, 1956). Sphaeriids were common and are also typical temporary-water inhabitants (Williams, 2006), their desiccation tolerance being facilitated by valve closure to minimise water loss and by entrance into a dormant state in which gas exchange occurs through minute pores (McKee & Mackie, 1980;Williams, 2006).…”

Section: Seedbank Assemblage Composition In Relation To Dry-phase Durmentioning

confidence: 99%

Macroinvertebrate seedbank composition in relation to antecedent duration of drying and multiple wet‐dry cycles in a temporary stream

et al. 2016

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SUMMARY1. The aquatic invertebrate 'seedbank' comprises life stages that remain viable in the bed sediments of temporary freshwaters during dry phases. This seedbank promotes persistence of temporary-stream macroinvertebrates, but how its inhabitants respond to extended dry phases or repeated transitions between wet and dry phases remains unknown. 2. We rehydrated samples collected from the dry bed of a temperate-zone stream during a supra-seasonal drought, to examine the seedbank assemblage. Samples were first collected in autumn, from 12 sites along the ephemeral (4 sites), intermittent (2) and near-perennial (6) reaches, which had been dry for up to 8 months. Our first hypothesis was that assemblage composition would be related to the dry-phase duration preceding sampling, with longer dry phases reducing abundance and richness. 3. We revisited the same sites in three subsequent seasons, collecting and rehydrating sediments from all dry sites: five sites in early spring, three in late spring and four in late summer. Unpredictable flow resumption and redrying occurred between sampling dates. Our second hypothesis was that repeated wet-dry cycles would not degrade the assemblage because temporary-stream taxa would be adapted to fluctuating hydrological conditions. 4. Multiple individuals of only Chironomidae, Oligochaeta and Pisidium were present at sites that experienced the longest dry phases, providing some support for our first hypothesis. An additional 21 taxa were recorded across the remaining (shorter dry phase) sites in autumn, indicating that such sites act as refuges and potential recolonist sources following flow resumptions. 5. Although several insect orders first recorded in early spring were absent in later seasons, taxon-specific life cycles indicated that these absences were probably seasonal and not due to repeated wet-dry cycles. 6. We recorded 38 taxa in total, highlighting the seedbank as a dry-phase resistance mechanism for many temporary-stream macroinvertebrates. Our results also suggest that seedbank diversity may be threatened by increases in drought extent and duration.

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“…Organisms remaining on exposed substratum can survive for some time, but mortality inevitably increases (Pozna nska et al, 2013). Furthermore, mobile organisms can (v) escape from exposed sites following the decreasing water level (Extence, 1981;Richardson, Hanson & Locke, 2002;Pozna nska et al, 2013Pozna nska et al, , 2015 or (vi) burrow into the moist substratum (McKee & Mackie, 1980;Imhof & Harrison, 1981;Pozna nska et al, 2013Pozna nska et al, , 2015Verdonschot et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Life on the edge: survival and behavioural responses of freshwater gill‐breathing snails to declining water level and substratum drying

et al. 2015

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Summary Reductions in water level and temporary exposure of substratum to air are two of the most important factors structuring communities in temperate near‐shore zones. Snails are suitable model organisms to study responses of aquatic communities to water‐level fluctuations, as they often inhabit near‐shore zones and are relatively mobile. In a laboratory study, we investigated survival and behavioural responses (horizontal migration and burrowing) of three freshwater gill‐breathing snails: Viviparus viviparus (L.) (large and small individuals), Bithynia tentaculata (L.) and Potamopyrgus antipodarum (Gray) to substratum drying. We studied the effect of distance to a suitable habitat (24 and 48 cm) and rate of dewatering (gradual: eight days or sudden) on horizontal migrations of snails as well as their burrowing depth. Large V. viviparus individuals were best adapted to dewatering: they were resistant to drying (surviving more than 3 weeks of air exposure) and migrated in response to decreasing water level and/or burrowed into the substratum. Their horizontal movement was negatively related to the rate of dewatering and distance needed to get to a submerged area. However, they were able to migrate to some extent even after a sudden dewatering and to reach a distant submerged refuge. Small V. viviparus exhibited similar behavioural responses as large individuals, but were less resistant to drying, surviving approximately one week of air exposure. Neither B. tentaculata nor P. antipodarum exhibited behavioural adaptations to desiccation, although resistance to drying differed markedly from approximately 3 weeks for B. tentaculata to 3–4 days for P. antipodarum. Resistance to drying and behavioural adaptations are two factors enabling benthic organisms to survive in harsh near‐shore environments. Our study revealed marked intra‐ and interspecific differences in response to dewatering, depending on body size, distance to a refuge and rate of dewatering. Appropriate physiological and behavioural responses may increase fitness of organisms under changing environmental conditions and contribute to their survival.

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Desiccation resistance in Sphaerium occidentale and Musculium securis (Bivalvia: Sphaeriidae) from a temporary pond

Cited by 22 publications

References 0 publications

Effect of temperature and relative humidity on the tolerance of the Japanese clam, Ruditapes philippinarum (Adams & Reeve), to air exposure

Effect of temperature and relative humidity on the tolerance of the Japanese clam, Ruditapes philippinarum (Adams & Reeve), to air exposure

Macroinvertebrate seedbank composition in relation to antecedent duration of drying and multiple wet‐dry cycles in a temporary stream

Life on the edge: survival and behavioural responses of freshwater gill‐breathing snails to declining water level and substratum drying

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