Does the handedness of the pebble crab <i>Eriphia smithii</i> influence its attack success on two dextral snail species?

Shigemiya, Yusuke

doi:10.1017/s095283690300373x

Cited by 29 publications

(18 citation statements)

References 30 publications

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“…Ng and Tan, 1985;Dietl and Hendricks, 2006). In the xanthid crab Eriphia smithii, lefthanded crabs had more difficulty in breaking the shell aperture of large individuals of the dextrally coiled snail Planaxix sulcatus (Shigemiya, 2003). However, left-handedness may not have any disadvantage for left-handed crabs in either feeding or agonistic behaviour (Ladle and Todd, 2006).…”

Section: Shell-cracking Behaviourmentioning

confidence: 99%

Chela asymmetry in a durophagous crab: predominance of right handedness, and handedness reversal linked with chela size and closing force

Masunari¹,

Hiro-oku²,

Dan

et al. 2015

Journal of Experimental Biology

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The swimming crab Portunus trituberculatus is a durophagous brachyuran. Right-handed crabs are predominant, but left-handed crabs are also found in nature. Left-handedness may arise from loss of the right crusher. We examined whether heterochely (morphology) was correlated with differences in closing force ( physical property) and handedness (behaviour). The closing force was stronger in larger chela with greater apodeme height and handedness resided in the chela with stronger closing force. With loss of the right chela (autotomy), handedness transitioned from the right to left chela, and all crabs were left-handed thereafter. Reversed handedness was accompanied with a reduction of size and closing force in the regenerated right chela, and growth of the original left chela. After handedness reversal, dentition on the left dactylus of the newlyconverted crusher was close to that of the original right crusher, but did not attain the same shape, even after 10 moults. Left-handed crabs were significantly worse than right-handed crabs at crushing hard-shelled prey. Chela formation was symmetrical in the zoea, and heterochely and right-handedness started in the megalopa, regardless of maternal handedness. Since the left chela is capable of being the crusher, heterochely may be caused by differences in morphogenetic velocity between the right and left chelae, under a signal discriminating right from left. Right-handedness is an attribute of P. trituberculatus, that would be inheritable across generations. It is probable that right-handedness was used in the earliest durophagous crabs, and this trend has been succeeded to extant species.

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Section: Shell-cracking Behaviourmentioning

confidence: 99%

Chela asymmetry in a durophagous crab: predominance of right handedness, and handedness reversal linked with chela size and closing force

Masunari¹,

Hiro-oku²,

Dan

et al. 2015

Journal of Experimental Biology

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“…In another marked contrast to primary asymmetry, secondary asymmetry has frequently evolved from symmetry as well as through polarity reversal (Palmer, 2004). Thus, the polarity of the secondary asymmetry is far more variable among species, as in bivalve shells (Odhner, 1919) and flounder eyes (Policansky, 1982), and within species, as in crab claw (Shigemiya, 2003) and fish body shape (Nakajima et al, 2007).…”

Section: Evolution Of Lr Reversal In the Secondary Asymmetry Of Snailsmentioning

confidence: 99%

The development and evolution of left‐right asymmetry in invertebrates: Lessons from Drosophila and snails

Okumura

Utsuno

Kuroda

et al. 2008

Developmental Dynamics

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The unique nature of body handedness, which is distinct from the anteroposterior and dorsoventral polarities, has been attracting growing interest in diverse biological disciplines. Recent research progress on the left-right asymmetry of animal development has focused new attention on the mechanisms underlying the development and evolution of invertebrate handedness. This exploratory review of currently available information illuminates the prospective value of Drosophila and pulmonate snails for innovative new research aimed at elucidating these mechanisms. For example, findings in Drosophila and snails suggest that an actin filament-dependent mechanism may be evolutionarily conserved in protostomes. The polarity conservation of primary asymmetry across most metazoan phyla, which visceral handedness represents, indicates developmental constraint and purifying selection as possible but unexplored mechanisms. Comparative studies using Drosophila and snails, which have the great advantages of using genetic and evolutionary approaches, will accelerate our understanding of the mechanisms governing the conservation and diversity of animal handedness. Developmental Dynamics 237: 3497-3515, 2008.

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“…6 Handling time of T. fluviatilis prey against A carapace width and B average chela height for E. sinensis operculum which required more time. In comparison, whilst handling snails, other crab species primarily crush the shell rather than pull the flesh from the aperture which shortens handling time (Zipser & Vermeji, 1978;Bertness & Cunningham, 1981;Schindler et al, 1994;Shigemiya, 2003;Rochette et al, 2007). This behaviour of crushing a molluscan shell may not be possible in sub-adult E. sinensis as they do not possess a distinct crushing chela, and also, in the present study, the crabs were relatively small individuals (10-40 mm carapace width).…”

Section: Discussionmentioning

confidence: 55%

“…Ozius verreauxii Saussure, 1853 and Eriphia squamata Stimpson, 1860, whilst failing to crush the snail shell, break only the shelf of the shell allowing them to remove the operculum and then remove the flesh from the shell (Bertness & Cunningham, 1981). Another technique is used by E. smithii MacLeay, 1838, and here the crab would break away the shell from the lip of the aperture until it could remove the flesh (Shigemiya, 2003). A possible Fig.…”

Section: Discussionmentioning

confidence: 99%

Flexible prey handling, preference and a novel capture technique in invasive, sub-adult Chinese mitten crabs

2016

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Eriocheir sinensis (Crustacea: Brachyura: Varunidae) is one of only two crabs on the world's list of 100 most invasive aquatic invertebrates. This crab has successfully invaded NE Europe as well as the United States, eastern Canada, southern Iraq and Tokyo Bay, Japan. In England, the River Thames population of E. sinensis continues to increase in numbers and disperse westward upstream, although little is known about foraging. The present study undertook a preference and prey handling study of sub-adult mitten crabs collected from the Thames. A digital camcorder, capable of detecting infrared light, was used in the laboratory overnight to identify crab food preference, document prey handling times and record behaviour. The test prey species, namely the amphipod Gammarus zaddachi, and two species of gastropod molluscs, Theodoxus fluviatilis and Radix peregra, were collected in the same habitat as the crabs, and all were consumed under laboratory conditions. Eriocheir were able to capture mobile G. zaddachi using a novel prey capture technique not previously described in brachyurans and use different skills for handling each prey species. This flexibility in prey handling may be an important contributory factor in their freshwater invasive capacity. Results indicated that the crabs had a preference for G. zaddachi which were consumed most frequently and preferentially over both mollusc species. Prey choice may be based on maximising net energy gain as consuming G. zaddachi was shown to provide the highest rate of potential energy consumption by the crab due, in part, to a much shorter handling time than for both species of snails.

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Does the handedness of the pebble crab Eriphia smithii influence its attack success on two dextral snail species?

Cited by 29 publications

References 30 publications

Chela asymmetry in a durophagous crab: predominance of right handedness, and handedness reversal linked with chela size and closing force

Chela asymmetry in a durophagous crab: predominance of right handedness, and handedness reversal linked with chela size and closing force

The development and evolution of left‐right asymmetry in invertebrates: Lessons from Drosophila and snails

Flexible prey handling, preference and a novel capture technique in invasive, sub-adult Chinese mitten crabs

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