Structural Changes in Molluscan Community over a 15-Year Period before and after the 2011 Great East Japan Earthquake and Subsequent Tsunami around Matsushima Bay, Miyagi Prefecture, Northeastern Japan

Sato, Shinichi; Chiba, Tomoki

doi:10.1371/journal.pone.0168206

Cited by 14 publications

(7 citation statements)

References 25 publications

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“…10-20 μm broad FCCL fringes composed of small acute crystallites that gradually increased in size along the growth direction ( Fig 4B). We also observed several, erratically distributed, fainter growth lines, aka disturbance lines (reflecting physiologically stressful conditions [67][68][69], consisting of spherical prismatic (SphP) and fibrous prismatic microstructures ( Fig 4A). These growth lines thus differ microstructurally from periodic growth lines (made of ISP), such as annual growth lines [28,31].…”

Section: Naturally and Laboratory-grown Shell Portionsmentioning

confidence: 80%

Temperature-induced microstructural changes in shells of laboratory-grown Arctica islandica (Bivalvia)

Höche¹,

Walliser²,

Winter

et al. 2021

PLoS ONE

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Bivalve shells are increasingly used as archives for high-resolution paleoclimate analyses. However, there is still an urgent need for quantitative temperature proxies that work without knowledge of the water chemistry–as is required for δ18O-based paleothermometry–and can better withstand diagenetic overprint. Recently, microstructural properties have been identified as a potential candidate fulfilling these requirements. So far, only few different microstructure categories (nacreous, prismatic and crossed-lamellar) of some short-lived species have been studied in detail, and in all such studies, the size and/or shape of individual biomineral units was found to increase with water temperature. Here, we explore whether the same applies to properties of the crossed-acicular microstructure in the hinge plate of Arctica islandica, the microstructurally most uniform shell portion in this species. In order to focus solely on the effect of temperature on microstructural properties, this study uses bivalves that grew their shells under controlled temperature conditions (1, 3, 6, 9, 12 and 15°C) in the laboratory. With increasing temperature, the size of the largest individual biomineral units and the relative proportion of shell occupied by the crystalline phase increased. The size of the largest pores, a specific microstructural feature of A. islandica, whose potential role in biomineralization is discussed here, increased exponentially with culturing temperature. This study employs scanning electron microscopy in combination with automated image processing software, including an innovative machine learning–based image segmentation method. The new method greatly facilitates the recognition of microstructural entities and enables a faster and more reliable microstructural analysis than previously used techniques. Results of this study establish the new microstructural temperature proxy in the crossed-acicular microstructures of A. islandica and point to an overarching control mechanism of temperature on the micrometer-scale architecture of bivalve shells across species boundaries.

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Section: Naturally and Laboratory-grown Shell Portionsmentioning

confidence: 80%

Temperature-induced microstructural changes in shells of laboratory-grown Arctica islandica (Bivalvia)

Höche¹,

Walliser²,

Winter

et al. 2021

PLoS ONE

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“…B. attramentaria is well suited for studying phenotypic changes in invasive species because it (1) exhibits direct development and has limited dispersal capacity (Kojima, Hayashi, Kim, Iijima, & Furota, 2004); (2) quickly forms relatively closed local populations after anthropogenic translocation (Bonnot, 1935;Galtsoff, 1932) or natural disasters (Sato & Chiba, 2016); and (3) has been introduced to areas that differ strongly in salinity conditions from its native region. In addition, this species exhibits a geographic subdivision that apparently corresponds to the main trajectories of the Tsushima and Kuroshio seawater currents which flow around the north and south of the Japanese archipelago, resulting in two divergent mitochondrial lineages termed Tsushima and Kuroshio (Ho, Kwan, Kim, & Won, 2015;Kojima et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Locomotor responses to salt stress in native and invasive mud-tidal gastropod populations (Batillaria)

Nguyen

Kern

et al. 2020

Preprint

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Plasticity in salt tolerance can be crucial for successful biological invasions of novel habitats by marine gastropods. The intertidal snail Batillaria attramentaria, which is native to East Asia but invaded the western shores of North America from Japan eighty years ago, provides an opportunity to examine how environmental salinity may shape behavioral and morphological traits. In this study, we compared the movement distance of four B. attramentaria populations from native (Korea and Japan) and introduced (USA) habitats under various salinity levels (13, 23, 33, and 43 PSU) during 30 days of exposure in the lab. We sequenced a partial mitochondrial CO1 gene to infer phylogenetic relationships among populations and confirmed two divergent mitochondrial lineages constituting our sample sets. Using a statistic model-selection approach, we investigated the effects of geographic distribution and genetic composition on locomotor performance in response to salt stress. Snails exposed to acute low salinity (13 PSU) reduced their locomotion and were unable to perform at their normal level (the moving pace of snails exposed to 33 PSU). We did not detect any meaningful differences in locomotor response to salt stress between the two genetic lineages or between the native snails (Japan versus Korea populations), but we found significant locomotor differences between the native and introduced groups (Japan or Korea versus the USA). We suggest that the greater magnitude of tidal salinity fluctuation at the USA location may have influenced locomotor responses to salt stress in introduced snails.

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“…Such monitoring can provide essential information about the life history and demography of the species of interest ( Hoskin et al, 2011 ), its interactions with other species in the same community ( Seitz, Knick & Westphal, 2011 ), and abiotic or biotic factors influencing recruitment to its populations ( Scrosati & Ellrich, 2016 ). When observational periods coincide with particularly disruptive events, for example natural disasters ( Sato & Chiba, 2016 ), the introduction of new invasive species ( Delaney et al, 2008 ), or climate-driven shifts in oceanographic regimes ( Mills et al, 2013 ; Pinsky et al., 2013 ), the impacts of such events on the studied species can be illuminating. Changes in abundances and the size or reproductive structure of species’ populations following such events, as well as overall shifts in community specific composition, illustrate which ecological changes impact particular species and how ( Ruth & Berghahn, 1989 ; Palumbi & Pinsky, 2014 ; Bertness et al, 1992 ).…”

Section: Introductionmentioning

confidence: 99%

Dramatic decline and limited recovery of a green crab (Carcinus maenas) population in the Minas Basin, Canada after the summer of 2013

Quinn

2018

PeerJ

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This paper reports the results of a ten-year monitoring program of an Atlantic Canadian population of green crabs, Carcinus maenas, in the Minas Basin of the Bay of Fundy. Intertidal densities, sex and reproductive ratios, juvenile recruitment, subtidal catch-per-unit-effort (CPUE), and sizes of crabs in this population were recorded from 2008 to 2017. In 2013 intertidal densities, mean crab sizes, subtidal CPUE, and proportions of crabs mature and reproducing all dramatically decreased to all-time lows, and large crabs virtually disappeared from the population. From 2014 to 2017 the population partially recovered but remained in an altered state. Potential causes of interannual changes to this population were investigated by correlating intertidal densities to 257 monthly environmental variables and performing stepwise multiple regression analyses. Crab densities in a given year were best explained by potential settlement during the summer and the maximum sea-surface temperature during March of the same year. However, potential roles of other factors (e.g., autumn winds, summer temperatures, North Atlantic Oscillation index) could not be ruled out. Changes in abundances of other species in the area, particularly predators and prey of green crabs, have also been observed and present possible alternative causative agents that should be investigated. Populations of other marine species in the Gulf of Maine-Bay of Fundy region within which the Minas Basin is situated have also been reported to have undergone dramatic changes in and after 2013, suggesting the occurrence of some oceanographic event or regime shift in the region. Declines to the monitored crab population in this study may have resulted from this same 2013 event. These observations have implications for recruitment to marine populations in this region.

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Structural Changes in Molluscan Community over a 15-Year Period before and after the 2011 Great East Japan Earthquake and Subsequent Tsunami around Matsushima Bay, Miyagi Prefecture, Northeastern Japan

Cited by 14 publications

References 25 publications

Temperature-induced microstructural changes in shells of laboratory-grown Arctica islandica (Bivalvia)

Temperature-induced microstructural changes in shells of laboratory-grown Arctica islandica (Bivalvia)

Locomotor responses to salt stress in native and invasive mud-tidal gastropod populations (Batillaria)

Dramatic decline and limited recovery of a green crab (Carcinus maenas) population in the Minas Basin, Canada after the summer of 2013

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