Salinity-temperature relationships in the queen scallop Chalamys opercularis

Paul, Jeremy D.

doi:10.1007/bf00386867

Cited by 42 publications

(13 citation statements)

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“…Identification and interpretation of annual growth bands in A. opercularis were based on previous studies in this species (Broom and Mason, 1978;Paul, 1980;Hickson et al, 1999) as well as other scallop species (e.g. Dare and Deith, 1990;.…”

Section: Growth Band Reading and Analysismentioning

confidence: 99%

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Population dynamics and metabolism of Aequipecten opercularis (L.) from the western English Channel (Roscoff, France)

Heilmayer

Brey

Storch

et al. 2004

Journal of Sea Research

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Population dynamics of the queen scallop, Aequipecten opercularis, was investigated in the western English Channel off Roscoff. Annual formation of natural growth rings on the shell surface was validated by stable isotope (y 18 O and y 13 C) analysis. A von Bertalanffy growth function (H t = 58.9 mm . (1Àe À 0.604.(t + 0.235) )) was fitted to size-at-age data of 249 individuals. Annual somatic and gonad production amounted to 19.74 kJ m À 2 and 0.98 kJ m À 2 y À 1 , respectively. Total mortality rate Z was estimated to be 1.716 y À 1 . Net growth efficiencies (ranging from 45% in 1-y-old to 11% in 6-y-old individuals) were in the same range as in other short-lived scallops. Individual growth, however, was distinctly slower in this population than in other A. opercularis populations from similar latitudes, most likely due to a more stressful environment. D

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Section: Growth Band Reading and Analysismentioning

confidence: 99%

“…Paul (1980) investigated salinity and temperature tolerances, Vahl (1972) described the relationship between water transport and oxygen uptake, and McLusky (1973) determined the effect of temperature acclimation on filtration and oxygen consumption rates.…”

Section: Introductionmentioning

confidence: 99%

Population dynamics and metabolism of Aequipecten opercularis (L.) from the western English Channel (Roscoff, France)

Heilmayer

Brey

Storch

et al. 2004

Journal of Sea Research

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“…The queen scallop Aequipecten opercularis from the Isle of Man, UK is short lived [8 to 10 years (Ansell et al, 1991;Philipp et al, 2006)] and belongs to an active swimming ecomorph within the scallop group (Minchin, 2003). These animals actively swim and change their location to avoid unfavourable environmental conditions including the escape from predators (Paul, 1980;Wong and Barbeau, 2003). A decline in physiological fitness, e.g.…”

Section: Introductionmentioning

confidence: 99%

Size- and age-dependent changes in adductor muscle swimming physiology of the scallopAequipecten opercularis

Philipp

Schmidt

Gsottbauer

et al. 2008

Journal of Experimental Biology

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SUMMARYThe decline of cellular and especially mitochondrial functions with age is, among other causes, held responsible for a decrease in physiological fitness and exercise capacity during lifetime. We investigated size-and age-related changes in the physiology of exercising specimens of the short lived swimming scallop Aequipecten opercularis (maximum life span 8 to 10 years) from the Isle of Man, UK. A. opercularis swim mainly to avoid predators, and a decrease in swimming abilities would increase the risk of capture and lower the rates of survival. Bigger (older) individuals were found to have lower mitochondrial volume density and aerobic capacities (citrate synthase activity and adenylates) as well as less anaerobic capacity deduced from the amount of glycogen stored in muscle tissue. Changes in redox potential, tissue pH and the loss of glutathione in the swimming muscle during the exercise were more pronounced in young compared to older individuals. This indicates that older individuals can more effectively stabilize cellular homeostasis during repeated exercise than younger animals but with a possible fitness cost as the change in physiology with age and size might result in a changed escape response behaviour towards predators. Supplementary material available online at

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“…As animals grow in size and age they transform morphologically and biochemically, often involving changes of behaviour and physiological responsiveness to environmental stressors (Castagna & Chanley 1973;Paul 1980;Tatar et al 1997). These may either be abiotic stressors like temperature or salinity extremes in marine environments, but may also consist of organisms' interactions through predation, competition or parasitism.…”

Section: Introductionmentioning

confidence: 99%

“…In situ studies of Chapman and co-workers (1979) on the queen scallop yielded swimming velocities between 29 and 40 cm per second and a distance of 1.5 m covered within one swim series. In many scallop species an escape response to various forms of stress has been documented (Paul 1980;Wong & Barbeau 2003). The response seems to be versatile, and a single species can show graded response reactions upon attack of different sea stars, meaning that the animals react stronger to predatory than nonpredatory sea stars (Thomas & Gruffydd 1971).…”

Section: Introductionmentioning

confidence: 99%

Size and age-dependent changes of escape response to predator attack in the Queen scallopAequipecten opercularis

Schmidt

Philipp

Abele

2008

Marine Biology Research

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To cite this Article Schmidt, Maike, Philipp, Eva E. R. and Abele, Doris(2008)'Size and age-dependent changes of escape response to predator attack in the Queen scallop Aequipecten opercularis ',Marine Biology Research,4:6,[442][443][444][445][446][447][448][449][450] To link to this Article: DOI: 10.1080/17451000802270346 URL: http://dx.doi.org/10.1080/17451000802270346Full terms and conditions of use: http://www.informaworld.com/terms-and-conditions-of-access.pdf This article may be used for research, teaching and private study purposes. Any substantial or systematic reproduction, re-distribution, re-selling, loan or sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden.The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material. ORIGINAL ARTICLESize and age-dependent changes of escape response to predator attack in the Queen scallop Aequipecten opercularis MAIKE SCHMIDT, EVA E. R. PHILIPP* & DORIS ABELE* Alfred-Wegener-Institute for Polar and Marine Research, Department of Biosciences, Shelf Sea Ecology, Bremerhaven, Germany Abstract Physiological fitness and exercise capacity decrease with age in humans and rodents, a finding for which, among other causes, the decline of cellular and especially mitochondrial functions with age is held responsible. We investigated changes of escape response to predator attacks in swimming scallops (Aequipecten opercularis) with size using the natural predator Asterias rubens. Aequipecten opercularis swim mainly to avoid predators and a decrease in swimming abilities would increase risk of capture and lower survival. The queen scallop A. opercularis is a very active, epibenthic species with a short lifespan of 8Á10 years and a shell height up to 90 mm in the investigated fishing ground around the Isle of Man. No difference in clap rate was found between smaller and bigger A. opercularis individuals, but differences were found in swimming mode (jumping and swimming) and valve opening and closure behaviour between the two size groups in response to predator attack. Smaller individuals showed less jumping movements and closed valves more often and remained closed for longer time than bigger animals. The difference in swimming behaviour is discussed in respect to size and age-dependent changes in morphology and cellular physiology as well as interactions of different main predators (sea stars, crabs) with the different size classes.

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Salinity-temperature relationships in the queen scallop Chalamys opercularis

Cited by 42 publications

References 11 publications

Population dynamics and metabolism of Aequipecten opercularis (L.) from the western English Channel (Roscoff, France)

Population dynamics and metabolism of Aequipecten opercularis (L.) from the western English Channel (Roscoff, France)

Size- and age-dependent changes in adductor muscle swimming physiology of the scallopAequipecten opercularis

Size and age-dependent changes of escape response to predator attack in the Queen scallopAequipecten opercularis

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