The respiration and hypoxic tolerance of <i>Nucula nitidosa</i> and <i>N. nucleus</i>: factors responsible for determining their distribution?

Holmes, Sebastian P.; Miller, Nicola; Weber, Anke

doi:10.1017/s0025315402006471

Cited by 13 publications

(18 citation statements)

References 22 publications

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“…In terms of secondary production, for the population sampled at Abyfjorden this equates to 457 kJ m -2 yr -1 (see Holmes et al [2002] for calculation details and Laureta [1986], Jensen [1990] for comparisons). Calculation of the respiratory quotient (Kleiber's constant β) for C. gibba produced a value of 0.61, in line with the value calculated by Laureta (1986) using a different methodology (Table 5).…”

Section: Discussionmentioning

confidence: 99%

“…Hence in terms of its metabolism, it is concluded that C. gibba adopts a conservationist type strategy, i.e. β falls within the range of 0.75 to 1 (see Riisgard 1998, Holmes et al 2002. It should be noted that because the measurements were made at roughly the same time over 2 yr, there may be seasonal variation in the respiratory quotient of C. gibba, which has not been 137 Allen ( 1954) accounted for (see Heilmayer et al 2004 for example).…”

Section: Discussionmentioning

confidence: 99%

“…< 2.0 mm shell width) Corbula gibba was in an identical manner to that outlined by Holmes et al (2002), with the exception that water controls were taken every 4 d in the first instance, and every 8 d in the second instance. Since after ~12 d the control death rate (due to starvation) was indistinguishable from the treatment death rate (due to starvation and hypoxia) in the first series of experiments, a second series of experiments were run, whereby a ~10 mg portion (dry weight) of Algarde vacation food block (Algarde Aquatic Products) was added to each container at the start of the experiment.…”

Section: Methodsmentioning

confidence: 99%

“…exploitative vs. conservationist (see Holmes et al 2002 for details); (2) to examine the hypoxic tolerance of C. gibba, adults and juveniles, to determine if this offers an advantage to C. gibba under hypoxic conditions; (3) to measure the salinity tolerance of C. gibba; (4) using a RAPD PCR methodology, examine the population genetics of several geographically separated C. gibba populations to assess both its dispersal potential and larval longevity. For this paper, the terms normoxia and hypoxia are used in accordance with Diaz & Rosenberg (1995) and exploitative and conservationist strategies are as defined by Holmes et al (2002). For Kleiber's (1961) constant, i.e.…”

Section: Introductionmentioning

confidence: 99%

“…In contrast, if β falls within the range 1.00 to 1.25, then the organism is likely to exhibit an exploitative type strategy, i.e. maturation is maximal in the absence of nutritional limits (see Riisgard 1988, Holmes et al 2002for full details and West et al 2002 for discussion).…”

Section: Introductionmentioning

confidence: 99%

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Aspects of the ecology and population genetics of the bivalve Corbula gibba

Holmes¹,

Miller²

2006

Mar. Ecol. Prog. Ser.

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The bivalve mollusc Corbula gibba (Olivi) is often regarded as an invasive weed species that forms monospecific stands in organically enriched hypoxic habitats. However, despite its status as a potential menace, surprisingly little is known about its basic biology, including its dispersal capacity. Measurement of the respiration rate of C. gibba revealed a respiratory demand of 3.12 µl O 2 h -1 and a respiratory quotient of 0.61, which suggests that C. gibba adopts a conservationist rather than exploitative mode of life. Examination of the hypoxic tolerance of C. gibba determined that adults could survive for > 34 d (LT 50 ≥ 34 d) and juveniles for > 30 d (LT 50 = 14 d), indicating that this species is well adapted to living in low oxygen habitats. Unusually, adults under hypoxia had a greater survival rate than control adults in normoxic conditions. Investigation of the salinity tolerance of C. gibba revealed that it could readily survive for 2 d at 0 to 16 psu, with increasing mortality for up to 10 d. In brackish seawater, survival was indistinguishable from that in normal seawater. Examination of the population genetics of 6 different populations of C. gibba separated over various spatial scales, using RAPD PCR methodology, determined that all populations were genetically distinct from each other, including populations separated by as little 5 km, although this may in part be due to the influence of a localised front. This suggests that the larval longevity and dispersal capacity of C. gibba is much less than has been previously considered. In light of all the results, it is concluded that instead of being an insidious pest species, C. gibba is more likely to be an inferior competitor, present in background numbers in normoxic habitats, and only becomes dominant when a system becomes hypoxic, thereby removing competitors and allowing C. gibba to flourish in the habitat to which it is adapted.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Aspects of the ecology and population genetics of the bivalve Corbula gibba

Holmes¹,

Miller²

2006

Mar. Ecol. Prog. Ser.

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Ecosystem change and carbon cycle perturbation preceded the end-Triassic mass extinction

Larina

Bottjer

Corsetti

et al. 2021

Earth and Planetary Science Letters

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Responses of a Northern Adriatic Ampelisca–Corbula community to seasonality and short-term hydrological changes in the Po river

N’Siala

Grandi

Iotti

et al. 2008

Marine Environmental Research

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During the 20th century, increased nutrient inflow has increased the frequency and intensity of eutrophication events in the North-western Adriatic Sea. More recently, evidence of a reduction in the Po river flow and a recovery of the benthic environment were reported. We examined the role played by Po river regime and seasonality in determining the temporal pattern of macrozoobenthos variation: samples were collected from a site located 10-12km off Cesenatico during two years from October 2004 to September 2006, when the mean Po discharge remained exceptionally low. 88 taxa were found, and the community was dominated by few species: Ampelisca diadema, Lumbrineris latreillii, Corbula gibba, Aricidea claudiae, Levinsenia gracilis and Nucula nucleus account for about 80% of total abundances. The density of these species exhibited a marked seasonal variability. Moreover, the total abundance and the density of the sensitive species, A. diadema, were negatively affected by several disturbance events (hypoxic conditions, frequent storms and an anomalous winter flood) that occurred between November 2005 and March 2006. The reduction of C. gibba and the increase of A. diadema densities observed in the investigated period, and verified recently by other authors could be related to the reduction in river inputs as a consequence of climatic changes.

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The respiration and hypoxic tolerance of Nucula nitidosa and N. nucleus: factors responsible for determining their distribution?

Cited by 13 publications

References 22 publications

Aspects of the ecology and population genetics of the bivalve Corbula gibba

Aspects of the ecology and population genetics of the bivalve Corbula gibba

Ecosystem change and carbon cycle perturbation preceded the end-Triassic mass extinction

Responses of a Northern Adriatic Ampelisca–Corbula community to seasonality and short-term hydrological changes in the Po river

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