Role of the statolith in functioning of the acceleration receptor system in squids and sepioids

Arkhipkin, Alexander I.; Бизиков, В. А.

doi:10.1017/s0952836900001035

Cited by 16 publications

(24 citation statements)

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“…Statoliths, made of ~95% CaCO 3 in the aragonite crystal form [35], are used by squid as part of their equilibrium and motion sensory organs (statocysts; [30,32,33,36]). Paired statoliths develop in each market squid embryo during the last two-thirds of the embryogenesis period ( Figure 1; [37]), then remain embedded within the statocyst as it grows during each following life stage.…”

Section: Introductionmentioning

confidence: 99%

Environmental pH, O2 and Capsular Effects on the Geochemical Composition of Statoliths of Embryonic Squid Doryteuthis opalescens

Navarro

Bockmon

Frieder

et al. 2014

Water

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Section: Introductionmentioning

confidence: 99%

Environmental pH, O2 and Capsular Effects on the Geochemical Composition of Statoliths of Embryonic Squid Doryteuthis opalescens

Navarro

Bockmon

Frieder

et al. 2014

Water

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“…As calcified structures embedded in cartilage, a pair of statoliths is an indispensable part of the acceleration receptor system that controls the movement and direction of the cephalopod (Hanlon andMessenger 1996, Arkhipkin andBizikov 2000). They are also used in studies of species identification (Clarke 1978, Dommergues et al 2000, Lombarte et al2006, age estimation (Villanueva 1992, Sánchez 1995, Arkhipkin and Shcherbich 2012, growth pattern (Yatsu 2000, Yatsu et al 1997) and trace elements (such as strontium) (Durholtz et al 1997, Ikeda et al 1996, Yatsu et al 1998b) to determine life history and relevant environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

Stock identification of neon flying squid (<em>Ommastrephes bartramii</em>) in the North Pacific Ocean on the basis of beak and statolith morphology

Fang¹,

Liu²,

Li³

et al. 2014

Sci. Mar.

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Summary:Cephalopods are becoming increasingly important in global fisheries as a result of increased landings and are playing an important ecological role in the trophic dynamics of marine ecosystems. Ommastrephes bartramii is a pelagic cephalopod species with two widely distributed spawning stocks in the North Pacific Ocean. It is also a major fishing target for the Chinese squid jigging fleets. Successful separation of these two spawning stocks is critical to fisheries management, but tends to be challenging because of their similar morphology. In this study we attempted to identify the stocks based on discriminant analyses of 9 morphological variables of statolith and 12 variables of beaks measured for O. bartramii samples in the North Pacific. A significant difference was revealed in the standardized beak and statolith variables between sexes in the northeast (NE) stock (P<0.05). The northwest (NW) stock showed significant differences between sexes for all variables (P<0.05) except for upper wing length (P>0.05), whereas the NW stock showed no significant difference in either sex for the statolith variables (P>0.05). The same sex also revealed different patterns with different hard structures between the two stocks. In t-tests females showed significant differences between stocks in statolith morphology (P<0.05) and beak morphology (P<0.05); males also showed this difference between cohorts in statolith variables (P<0.05) except dorsal dome length and wing length (P>0.05), but showed no difference between cohorts (P>0.05) in beak morphometric variables. With the combination of two standardized hard parts, correct classification of stepwise discriminant analysis (SDA) was raised by nearly 20% compared with using only one structure, although overlaps of the NW stock were still found in the scatter-plots. It is concluded that adding more appropriate hard structure variables will effectively increase the success of separating geographic stocks by the SDA method.Keywords: Ommastrephes bartramii; statolith; beaks; morphology; geographic stock; stepwise discriminant analysis.Identificación de las poblaciones de pota saltadora (Ommastrephes bartramii) en el Pacífico Norte a partir de la morfología de estatolitos y mandíbulas Resumen: Los cefalópodos son cada vez más importantes en las pesquerías mundiales como consecuencia de su volumen de capturas, jugando un importante rol en la red trófica de los ecosistemas marinos. Ommastrephes bartramii es una especie de cefalópodo pelágico con dos poblaciones de desove de amplia distribución en el Pacífico Norte. Asímismo, es un importante objetivo de las flotas pesqueras chinas de potera automática. La adecuada identificación de sus dos poblaciones de desove es fundamental para la gestión de esta pesquería, siendo una difícil tarea debido a su morfología similar. En este estudio se pretende identificar los stocks en función de los análisis discriminantes de nueve variables morfológicas del estatolito y doce variables de las mandíbulas, obtenidas en muestras de O. bartramii d...

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“…These differences, although they may slow down research on the general rules of biomineralization, may be useful for evolutionary studies. Shapes of statoliths may be convergently similar in very diverse cephalopods (ARKHIPKIN & BIZIKOV 2000), but the deposition process, being governed by a circadian clock, is likely to reflect true evolutionary lineages in gross structures (such as the relation of the wing to the rest of the statolith, since elemental fingerprints in otoliths are thought not to reflect genetic links; CAMPANA & TZENG 2000). The circadian mechanism in cephalopods was not studied, but it is believed that the light/dark change acts as a "zeitgeber" (DURHOLTZ 1999).…”

Section: Squid Statolith Deposition Processmentioning

confidence: 99%

Statoliths as archives of cephalopod life cycle: a search for universal rules

Lipiński¹

2001

Folia Malac.

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The role of various hard structures of fish and cephalopods as living archives is briefly reviewed, and the role of the cephalopod statolith as an archive of age is treated in more detail. The statolith deposition hypothesis is considered as a complete validation tool (in contrast to the more common partial validation). The hypothesis emphasises the role of crystallisation stabilisers (such as Sr) early on, reaction switchers (such as pH) which are the deposition engines, and regulators-linkers (such as proteins) which control runaway crystallisation and are responsible for species-specific shapes and other individual details. Implications of deposition-oriented approach and research for understanding of growth and application of growth studies are also discussed.

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Role of the statolith in functioning of the acceleration receptor system in squids and sepioids

Cited by 16 publications

References 0 publications

Environmental pH, O2 and Capsular Effects on the Geochemical Composition of Statoliths of Embryonic Squid Doryteuthis opalescens

Environmental pH, O2 and Capsular Effects on the Geochemical Composition of Statoliths of Embryonic Squid Doryteuthis opalescens

Stock identification of neon flying squid (<em>Ommastrephes bartramii</em>) in the North Pacific Ocean on the basis of beak and statolith morphology

Statoliths as archives of cephalopod life cycle: a search for universal rules

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