Swimming in the Antarctic scallop <i>Adamussium colbecki</i>: analysis of <i>in situ</i> video recordings

Ansell, A. D.; Cattaneo‐Vietti, Riccardo; Chiantore, Mariachiara

doi:10.1017/s0954102098000455

Cited by 48 publications

(57 citation statements)

References 20 publications

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“…These correspond to free-swimming resonant frequencies of 2.00 and 1.45·Hz, respectively. These freeswimming resonant frequencies are approximately equal to the clapping frequencies measured both in the holding tanks (1.39 and 1.46·Hz) and in the field [1.32-2.08·Hz, mean=1.52·Hz (Ansell et al, 1998)]. …”

Section: Resonant Oscillationmentioning

confidence: 58%

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Jet propulsion in the cold: mechanics of swimming in the Antarctic scallopAdamussium colbecki

Denny

Miller

2006

Journal of Experimental Biology

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drastic reduction in adductor-muscle mass. By contrast, A. colbecki's abductin maintains a higher resilience at low temperatures than does the abductin of a temperate scallop. This resilience may help to compensate for reduced muscle mass, assisting the Antarctic scallop to maintain its marginal swimming ability. However, theory suggests that this assistance should be slight, so the adaptive value of increased resilience remains open to question. The high resilience of A. colbecki abductin at low temperatures may be of interest to materials engineers.

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Section: Resonant Oscillationmentioning

confidence: 58%

“…However, it is evident that the Antarctic scallop is on the edge: A. colbecki swims at speeds of only 25-50% of those found in temperate scallops (Ansell et al, 1998), barely above the minimal speed required to stay aloft (Cheng and DeMont, 1996).…”

Section: Introductionmentioning

confidence: 97%

Jet propulsion in the cold: mechanics of swimming in the Antarctic scallopAdamussium colbecki

Denny

Miller

2006

Journal of Experimental Biology

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“…However, this question remains to be answered. Similarly, despite a large number of studies on scallop escape responses (Ansell et al, 1998;Bailey and Johnston, 2005;Cheng et al, 1996;Himmelman et al, 2009;Perez et al, 2009;Schmidt et al, 2008;Stephens and Boyle, 1978;Thomas and Gruffydd, 1971), little is known about their ETs. Analysis of the escape response in the vertical plane shows it comprises three phases: take-off, level swimming and sinking (Ansell et al, 1998).…”

Section: Molluscsmentioning

confidence: 99%

“…Similarly, despite a large number of studies on scallop escape responses (Ansell et al, 1998;Bailey and Johnston, 2005;Cheng et al, 1996;Himmelman et al, 2009;Perez et al, 2009;Schmidt et al, 2008;Stephens and Boyle, 1978;Thomas and Gruffydd, 1971), little is known about their ETs. Analysis of the escape response in the vertical plane shows it comprises three phases: take-off, level swimming and sinking (Ansell et al, 1998). Analysis of the escape response of the scallop Chlamys hastata in the horizontal plane, startled by the sea star Pycnopodia helianthoides, found that mechanical stimuli applied to the anterior mantle consistently resulted in an anticlockwise rotation during the initial escape whereas posterior stimulation resulted in a clockwise rotation (Brown, 2009).…”

Section: Molluscsmentioning

confidence: 99%

Animal escapology II: escape trajectory case studies

Domenici¹,

Blagburn

Bacon

2011

Journal of Experimental Biology

131

151

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Summary Escape trajectories (ETs; measured as the angle relative to the direction of the threat) have been studied in many taxa using a variety of methodologies and definitions. Here, we provide a review of methodological issues followed by a survey of ET studies across animal taxa, including insects, crustaceans, molluscs, lizards, fish, amphibians, birds and mammals. Variability in ETs is examined in terms of ecological significance and morpho-physiological constraints. The survey shows that certain escape strategies (single ETs and highly variable ETs within a limited angular sector) are found in most taxa reviewed here, suggesting that at least some of these ET distributions are the result of convergent evolution. High variability in ETs is found to be associated with multiple preferred trajectories in species from all taxa, and is suggested to provide unpredictability in the escape response. Random ETs are relatively rare and may be related to constraints in the manoeuvrability of the prey. Similarly, reports of the effect of refuges in the immediate environment are relatively uncommon, and mainly confined to lizards and mammals. This may be related to the fact that work on ETs carried out in laboratory settings has rarely provided shelters. Although there are a relatively large number of examples in the literature that suggest trends in the distribution of ETs, our understanding of animal escape strategies would benefit from a standardization of the analytical approach in the study of ETs, using circular statistics and related tests, in addition to the generation of large data sets.

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“…In this species, it is also possible to note a change in its behaviour: the juveniles are bissally attached on the free adults and use the organic matter resuspended by the clapping of the adults (Ansell et al, 1998). Other forms of epibiosis, adopted by serpuloids, bryozoans, holothurians and ophiuroids, are frequent in well structured communities and could be considered an adaptation to find better feeding conditions above the seafloor (Arntz et al, 1994).…”

Section: Pelagic-benthic Coupling In Terra Nova Baymentioning

confidence: 99%

The role of pelagic-benthic coupling in structuring littoral benthic communities at Terra Nova Bay (Ross Sea) and in the Straits of Magellan

Cattaneo‐Vietti¹,

Chiantore²,

Misic³

et al. 1999

Sci. Mar.

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SUMMARY: In Antarctic and peri-Antarctic regions, benthic communities are persistent in time and show high biomass and large numbers of individuals, mainly consisting of suspension and deposit feeders. In fact, apart from recruitment, the major factor structuring these communities is the high flow of organic matter from the pelagic domain to the bottom, representing an important energy source for the benthic organisms. The aim of this paper is to review, compile and compare the data from earlier investigations in Terra Nova Bay (Ross Sea) and the Straits of Magellan, in order to come to a more general conclusion about the role of the pelagic-benthic coupling in structuring littoral benthic communities in southern coastal areas. Few measurements of flux rates and the biochemical composition of the sinking particles occurring in Antarctic and peri-Antarctic shallow waters are available, but a compilation of our own data and others allows a comparison of these two systems. The different environmental conditions between Antarctica and the Straits of Magellan lead to differences in the origin of the particulate organic matter and in its biochemical composition, and consequently in the coupling between pelagic and benthic domains. At Terra Nova Bay the summer particulate matter shows a high labile fraction of a good food value: its flux has been evaluated at about 0.67 g m -2 d -1 . Conversely, the Straits of Magellan show multi-structured ecosystems where the quality and quantity of the organic matter flux towards the bottom change according to the local geomorphology and current dynamics. Moreover, the three-dimensional assemblages of suspension-feeders, so common in Antarctic shallow waters, seem to be absent in the Magellan area. In particular sponges, gorgonarians and bryozoans play a secondary role inside the Straits of Magellan, where polychaetes (60%) and molluscs (9-10%) are dominant on soft bottoms, and where they reach high values in density and biomass. Bivalves seem to play an important role in both regions: for instance, at Terra Nova Bay, the scallop Adamussium colbecki processes about 14 % of the total carbon flux, with an assimilation efficiency of 36 %. This scallop seems to be able to adapt its reproductive period and its trophic behaviour to the changes in the quality and quantity of the pelagic events. The pulsing trend of the vertical flux, which in a few weeks can reach the total annual input, produces significant changes in the physiology (growth, reproduction, spawning) and trophic behaviour of many benthic species, such as sponges and polychaetes. The study of the pelagic-benthic coupling could be essential in the evaluation of the trophic capacity and the environmental response around sites of sea-farming, which are an ever-growing activity in the Magellan area.

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Swimming in the Antarctic scallop Adamussium colbecki: analysis of in situ video recordings

Cited by 48 publications

References 20 publications

Jet propulsion in the cold: mechanics of swimming in the Antarctic scallopAdamussium colbecki

Jet propulsion in the cold: mechanics of swimming in the Antarctic scallopAdamussium colbecki

Animal escapology II: escape trajectory case studies

The role of pelagic-benthic coupling in structuring littoral benthic communities at Terra Nova Bay (Ross Sea) and in the Straits of Magellan

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