Swimming behaviour of the saucer scallop Amusium balloti (Mollusca: Pectinidae)

Joll, L. M.

doi:10.1007/bf00428481

Cited by 47 publications

(50 citation statements)

References 6 publications

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“…Adults reach their commercial size (90 mm SH) in -4 yr. Previous studies of movement and dispersion of adult P. rnagellanicus on Georges Bank (Northwest Atlantic), and other species of scallops elsewhere, have demonstrated or postulated a relationship between the net movement direction of scallops and the main current vectors (Moore & Marshal1 1967, Posgay 1981, Melvin et al 1985, Joll 1989, Thouzeau 1991. Thouzeau et al (1991) found that the distribution of P. magellanicus with increasing age on eastern Georges Bank was consistent with that expected due to advection by currents.…”

Section: Introductionmentioning

confidence: 67%

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Effects of site and season on movement frequencies and displacement patterns of juvenile sea scallops Placopecten magellanicus under natural hydrodynamic conditions in Nova Scotia, Canada

Carsen¹,

Hatcher²,

Scheibling³

et al. 1995

Mar. Ecol. Prog. Ser.

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In this study, we examine the effect of site and season (spnng vs fall) on the movement frequency and net displacement of juvenile sea scallops Placopecten magellanicus, and the relationship between the net movement direction of scallops and the near-bed current direction at 2 sites in Lunenburg Bay, Nova Scotia, Canada. At each site, a total of 150 and 100 individually marked juvenile sea scallops were released on the sea bed at 2 points (Stns 1 and 2) placed 50 m apart for the spring (March) and fall (September) studies. The movement frequency and net displacement of the scallops were monitored within a 10 m radius from the release point approximately once a week durlng the spring study, and once a day during the fall study. Current meters placed 60 cm off the sea bed recorded near-bed current velocity. There was a significant interaction between site and season on the movement frequency of scallops. Scallop activity was low during the spring study at both sites when -30% of scallops were found at their release point on the sea bed after 30 d. Scallops were much more mobile during the fall study when ~5 % of scallops were found at their release point after 2 d. However, the net dally displacement was c 3 m for more than 60% of scallops recorded In -50% of the surveys, the net movement direction of scallops was significantly related to the direction of the main current vectors over daily to monthly periods, whereas in the other cases the net movement direction was independent of the direction of the main current vectors. The results of this study indicate that local hydrodynamics is not a good predictor of the swimming dispersion of juvenile P magellanicus in natural habitats.

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Section: Introductionmentioning

confidence: 67%

“…Small scallops (c30 mm shell height, SH) tend to swim vertically, or in an ascending spiral, and therefore rely on advection by water currents for horizontal displacement (Manuel & Dadswell 1991, Minchin 1992, Carsen 1994. At larger sizes (-50 mm SH), scallops are capable of extended ( > 2 m) level flight (Joll 1989, Dadswell & Weihs 1990.…”

Section: Introductionmentioning

confidence: 99%

Effects of site and season on movement frequencies and displacement patterns of juvenile sea scallops Placopecten magellanicus under natural hydrodynamic conditions in Nova Scotia, Canada

Carsen¹,

Hatcher²,

Scheibling³

et al. 1995

Mar. Ecol. Prog. Ser.

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show abstract

“…In scallops, the relationship of swimming speed and size depends on the species. Joll (1989) found that large Amusium balloti have faster absolute speeds than small conspecifics. However, absolute swimming speed remains constant over a range of scallop size in Amusium pleuronectes (Morton, 1980).…”

Section: Discussionmentioning

confidence: 98%

“…Scallops exhibit a range of swimming abilities, from short-burst, ''zig-zag'' swimmers such as Chlamys (Moore and Trueman, 1971;Donovan et al, 2002) to long-range, gliding swimmers such as Amusium (Morton, 1980;Joll, 1989) and Placopecten (Caddy, 1968). Swimming ability in scallops is related to shell morphometry, and this varies amongst scallop species (Stanley, 1970).…”

Section: Introductionmentioning

confidence: 99%

Swimming behavior and morphometry of the file shellLimaria fragilis

Donovan

Elias

Baldwin

2004

Marine and Freshwater Behaviour and Physiology

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Swimming has evolved in only a few orders of Bivalves. In this study, the behavior, morphometry, and mechanics of swimming in the file shell Limaria fragilis were characterized and compared to the better understood scallops. Absolute swimming speed (cm sec À1 ) increased with increasing shell height, although relative swimming speed (body lengths sec À1 ) did not covary with shell height. The increase in absolute swimming speed was due to an increase in the distance covered during each valve clap as clap distance (cm clap À1 ) also increased with shell height while clapping frequency (claps sec À1 ) did not covary with animal size. Limaria fragilis displayed a variety of morphological changes related to size. Shell length was negatively allometric with shell height indicating the shell became proportionately slimmer in larger animals. Dry shell mass was negatively allometric with shell height, while both dry adductor muscle mass and dry mantle þ tentacle mass were positively allometric. Autotomy of mantle tentacles significantly decreased clap distance by 13% without affecting clapping frequency or swimming speed.

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“…In its natural habitat, A. balloti is free living and found exposed or partly recessed on the seabed. As the maximum single-swim distance of A. balloti is greater than that recorded for any other scallop, Joll (Joll, 1989) suggested that A. balloti is a more active swimmer than P. magellanicus and Amusium pleuronectes. P. magellanicus is an active swimmer (Caddy, 1968;Dadswell and Weihs, 1990) and lives mainly exposed on the seabed.…”

Section: Introductionmentioning

confidence: 88%

Swimming away or clamming up: the use of phasic and tonic adductor muscles during escape responses varies with shell morphology in scallops

Tremblay

Guderley

Himmelman

2012

Journal of Experimental Biology

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SUMMARYThe simple locomotor system of scallops facilitates the study of muscle use during locomotion. We compared five species of scallops with different shell morphologies to see whether shell morphology and muscle use change in parallel or whether muscle use can compensate for morphological constraints. Force recordings during escape responses revealed that the use of tonic and phasic contractions varied markedly among species. The active species, Amusium balloti, Placopecten magellanicus and Pecten fumatus, made more phasic contractions than the more sedentary species, Mimachlamys asperrima and Crassadoma gigantea. Tonic contractions varied considerably among these species, with the two more sedentary species often starting their response to the predator with a tonic contraction and the more active species using shorter tonic contractions between series of phasic contractions. Placopecten magellanicus made extensive use of short tonic contractions. Pecten fumatus mounted an intense series of phasic contractions at the start of its response, perhaps to overcome the constraints of its unfavourable shell morphology. Valve closure by the more sedentary species suggests that their shell morphology protects them against predation, whereas swimming by the more active species relies upon intense phasic contractions together with favourable shell characteristics.

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Swimming behaviour of the saucer scallop Amusium balloti (Mollusca: Pectinidae)

Cited by 47 publications

References 6 publications

Effects of site and season on movement frequencies and displacement patterns of juvenile sea scallops Placopecten magellanicus under natural hydrodynamic conditions in Nova Scotia, Canada

Effects of site and season on movement frequencies and displacement patterns of juvenile sea scallops Placopecten magellanicus under natural hydrodynamic conditions in Nova Scotia, Canada

Swimming behavior and morphometry of the file shellLimaria fragilis

Swimming away or clamming up: the use of phasic and tonic adductor muscles during escape responses varies with shell morphology in scallops

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