Relationship between the aerobic and anaerobic metabolic capacities and the vertical distribution of three intertidal sessile invertebrates: Jehlius cirratus (Darwin) (Cirripedia), Perumytilus purpuratus (Lamarck) (Bivalvia) and Mytilus chilensis (Hupé) (Bivalvia)

Simpfendörfer, Robert W.; Vial, M.Victoria; López, Daniel; Verdala, Marco; González, María Luisa Soriano

doi:10.1016/0305-0491(95)00026-5

Cited by 38 publications

(30 citation statements)

References 16 publications

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“…Our finding agrees with that of other studies that show that the distribution of intertidal organisms, even of closely related species, correlate with their resistance to desiccation (e.g. Iwasaki 1995, Simpfendorfer et al 1995, Davenport 1997. Although S. haemastoma seems to be better adapted to cope with desiccation than H. trunculus, it avoids desiccation conditions by retreating to shelters in the midlittoral zone when such conditions develop (G. Rilov et al unpubl.…”

Section: Behavioral Adaptation To Exposure To Airsupporting

confidence: 93%

Life on the edge: do biomechanical and behavioral adaptations to wave-exposure correlate with habitat partitioning in predatory whelks?

Rilov¹,

Benayahu²,

Gasith³

2004

Mar. Ecol. Prog. Ser.

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The rocky littoral is a highly stressed but species rich environment in which adaptive trade-offs underlie the specialization that permits habitat partitioning by closely-related species. Habitat partitioning by prey species is generally attributed to differential tolerances to physiological stresses and competition for resources. Partitioning by predators is, however, less understood and also mainly related to thermal tolerance. We test the hypothesis that differential biomechanical and behavioral adaptations to wave action can result in habitat partitioning of mobile predators using 2 Mediterranean whelks. Stramonita haemastoma is found mainly at wave-exposed habitats on lower midlittoral or shallow (1 to 3 m) subtidal rocks. By contrast, Hexaplex trunculus is found only subtidally in more quiescent littoral environments (shallow bays and lagoons or deeper in wave-exposed sites). Morphologically, S. haemastoma is squatter than H. trunculus and the ratio of its foot surface area to the maximum projected surface area of its shell is 35% higher, making S. haemastoma less prone to dislodgment by waves. Mechanically, at least a 2-fold higher force (12 N) is required to dislodge S. haemastoma from the substrate, probably due to its larger foot, because tenacity per foot area was similar between species. The feeding technique and foraging behavior of S. haemastoma is also adapted to life in high-energy environments. Higher feeding rates and much shorter prey handling time compared to H. trunculus allow this species shorter foraging bouts that reduce the risk of dislodgment and increase predation success in wave-exposed areas. H. trunculus thrives in low-flow habitats where food density is low compared to shallow subtidal rocks. This is compensated for by a broader diet than S. haemastoma, feeding on any available food item, including conspecifics, and by reducing adhesion when not feeding, thus saving energy. S. haemastoma is more adapted to survive desiccation conditions than H. trunculus, which may exclude the latter from intertidal habitats. Our findings suggest that habitat partitioning between the whelks is maintained mainly by a 'distinct preferences' mechanism that might be relevant for other benthic predatory species.

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Section: Behavioral Adaptation To Exposure To Airsupporting

confidence: 93%

Life on the edge: do biomechanical and behavioral adaptations to wave-exposure correlate with habitat partitioning in predatory whelks?

Rilov¹,

Benayahu²,

Gasith³

2004

Mar. Ecol. Prog. Ser.

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“…Other intertidal species are able to obtain oxygen directly from the air. Simpfendorfer et al (1995) demonstrated that the strategies employed by these species are largely determined by their position in the intertidal zone. Barnacles, usually found in the upper part of the shore, have high rates of aerial respiration that can reach 100% of their underwater rates (Simpfendorfer et al 1995;Clavier et al 2009).…”

Section: Respirationmentioning

confidence: 98%

“…Simpfendorfer et al (1995) demonstrated that the strategies employed by these species are largely determined by their position in the intertidal zone. Barnacles, usually found in the upper part of the shore, have high rates of aerial respiration that can reach 100% of their underwater rates (Simpfendorfer et al 1995;Clavier et al 2009). Aerial respiration rates of bivalves in the mid-tide zone have been found to range from 30% to 87% of underwater respiration (Simpfendorfer et al 1995;Marsden and Weatherhead 1998;Huang and Newell 2002).…”

Section: Respirationmentioning

confidence: 98%

Respiration and Calcification of Crassostrea gigas: Contribution of an Intertidal Invasive Species to Coastal Ecosystem CO2 Fluxes

Lejart

Clavier

Chauvaud

et al. 2011

Estuaries and Coasts

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International audienceRespiration and calcification rates of the Pacific oyster Crassostrea gigas were measured in a laboratory experiment in the air and underwater, accounting for seasonal variations and individual size, to estimate the effects of this exotic species on annual carbon budgets in the Bay of Brest, France. Respiration and calcification rates changed significantly with season and size. Mean underwater respiration rates, deducted from changes in dissolved inorganic carbon (DIC), were 11.4 μmol DIC g−1 ash-free dry weight (AFDW) h−1 (standard deviation (SD), 4.6) and 32.3 μmol DIC g−1 AFDW h−1 (SD 4.1) for adults (80-110 mm shell length) and juveniles (30-60 mm), respectively. The mean daily contribution of C. gigas underwater respiration (with 14 h per day of immersion on average) to DIC averaged over the Bay of Brest population was 7.0 mmol DIC m−2 day−1 (SD 8.1). Mean aerial CO2 respiration rate, estimated using an infrared gas analyzer, was 0.7 μmol CO2 g−1 AFDW h−1 (SD 0.1) for adults and 1.1 μmol CO2 g−1 AFDW h−1 (SD 0.2) for juveniles, corresponding to a mean daily contribution of 0.4 mmol CO2 m−2 day−1 (SD 0.50) averaged over the Bay of Brest population (with 10 h per day of emersion on average). Mean CaCO3 uptake rates for adults and juveniles were 4.5 μmol CaCO3 g−1 AFDW h−1 (SD 1.7) and 46.9 μmol CaCO3 g−1 AFDW h−1 (SD 29.2), respectively. The mean daily contribution of net calcification in the Bay of Brest C. gigas population to CO2 fluxes during immersion was estimated to be 2.5 mmol CO2 m−2 day−1 (SD 2.9). Total carbon release by this C. gigas population was 39 g C m−2 year−1 and reached 334 g C m−2 year−1 for densely colonized areas with relative contributions by underwater respiration, net calcification, and aerial respiration of 71%, 25%, and 4%, respectively. These observations emphasize the substantial influence of this invasive species on the carbon cycle, including biogenic carbonate production, in coastal ecosystems

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“…Samples for the determinations of enzyme activities of citrate synthase (CS) and pyruvate kinase (PK) were taken in the post-(P) and premolt (A) period of the Zoea I (ZIP, ZIA), Zoea III (ZIIIP, ZIIIA) and Zoea V (ZVP, ZVA) instar of larvae reared at the four acclimation temperatures (12, 16, 20, 22°C) and analyzed following a modified method of Sidell et al (1987) (CS) and a modified method of Simpfendörfer et al (1995) (PK), which were adopted for small sample size and measurement in a microplate reader. Three replicates were collected for each "instar × acclimation temperature" combination as available (see Table 1).…”

Section: Enzyme Assaysmentioning

confidence: 99%

“…Hence, PK activity may represent the potential for anaerobic work in the glycolytic pathway (Johnston et al, 1977). Again, the assay according to Simpfendörfer et al (1995) was adapted for use in a microplate reader below ambient temperature. Homogenates (10 μl/well) were assayed in 200 μl of assay buffer (pH 8.0) (6 mM Tris-HCl, 60 mM KCl, 6 mM MgSO 4 ×7 H 2 O) 7 mM NADH, 0.5 mM PEP and 5.5 U/ml LDH.…”

Section: Pyruvate Kinasementioning

confidence: 99%

Physiological capacity of Cancer setosus larvae — Adaptation to El Niño Southern Oscillation conditions

Weiss

Heilmayer

Brey

et al. 2012

Journal of Experimental Marine Biology and Ecology

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Temperature changes during ENSO challenge the fauna of the Pacific South American coast. In many ectotherm benthic species pelagic larvae are the most important dispersal stage, which may, however, be particularly vulnerable to such environmental stress. Thermal limitation in aquatic ecotherms is hypothesized to be reflected first in the aerobic scope of an animal. Here we present results on whole animal oxygen consumption and on the activities of two metabolic key enzymes, citrate synthase (CS) and pyruvate kinase (PK)) of Cancer setosus zoeal larvae, acclimated to different temperatures. Larvae acclimated to cooler temperatures (12 and 16°C) were able to compensate for the temperature effect as reflected in elevated mass specific respiration rates (MSR) and enzyme activities. In contrast, warm acclimated larvae (20 and 22°C) seem to have reached their upper thermal limits, which is reflected in MSR decoupling from temperature and low Q10 values (Zoea I: 1.4; Zoea III: 1.02). Thermal deactivation of CS in vitro occurred close to habitat temperature (between 20 and 24°C), indicating instability of the enzyme close to in vivo thermal limits. The capacity of anaerobic metabolism, reflected by PK, was not influenced by temperature, but increased with instar, reflecting behavioral changes in larval life style. Functioning of the metabolic key enzyme CS was identified to be one possible key for larval limitation in temperature tolerance.

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Relationship between the aerobic and anaerobic metabolic capacities and the vertical distribution of three intertidal sessile invertebrates: Jehlius cirratus (Darwin) (Cirripedia), Perumytilus purpuratus (Lamarck) (Bivalvia) and Mytilus chilensis (Hupé) (Bivalvia)

Cited by 38 publications

References 16 publications

Life on the edge: do biomechanical and behavioral adaptations to wave-exposure correlate with habitat partitioning in predatory whelks?

Life on the edge: do biomechanical and behavioral adaptations to wave-exposure correlate with habitat partitioning in predatory whelks?

Respiration and Calcification of Crassostrea gigas: Contribution of an Intertidal Invasive Species to Coastal Ecosystem CO2 Fluxes

Physiological capacity of Cancer setosus larvae — Adaptation to El Niño Southern Oscillation conditions

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