Genetic Structures of Laguncula pulchella Metapopulations Along the Northeast Coast of Japan After the Tsunamis Caused by the Great East Japan Earthquake

Ohtsuki, Hajime; Suzuki, Takao; Kinoshita, Kyoko; Kanaya, Gen; Hirama, T.; Sato, Shinichi; Shibata, Kiyotaka; Okoshi, Kenji; Urabe, Jotaro

doi:10.1007/978-4-431-56448-5_14

Cited by 6 publications

(2 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Mitochondrial DNA analyses have shown that L. pulchella individuals collected from Site H (Ohtsuki et al unpublished data) and Site F (Ohtsuki et al 2016) belong to a genetically foreign population. Pink-colored individuals were detected at Site H, with this coloration only being found in foreign populations (Fukuda & Kimura 2012).…”

Section: Discussionmentioning

confidence: 99%

Abundance and body size of the moonsnail <i>Laguncula pulchella</i> in the Misuji River estuary, Seto Inland Sea, Japan: comparison with a population in northern Japan

Yoshida

Sato

Narita

et al. 2017

Plankton Benthos Res

View full text Add to dashboard Cite

Abstract:The moonsnail Laguncula pulchella (Naticidae, formerly known as Euspira fortunei) is an invasive species that has had a negative impact on the Manila clam (Ruditapes philippinarum) population in northern Japan. In southern Japan, few records of L. pulchella exist; furthermore, the knowledge concerning the ecology of this organism is currently limited. Unexpectedly, we found many L. pulchella individuals in the Misuji River estuary, located in Hiroshima in southern Japan, during May 2015. We conducted a field survey on the density and body size of L. pulchella at a tidal flat in the Misuji River estuary (Site H) and compared those to L. pulchella in Matsukawaura Lagoon, located in Fukushima in northern Japan (Site F). The adult population of L. pulchella in a clam fishing ground (40,500 m 2 ) at Site H was estimated to be 2,048 individuals in 2015. Densities of both surfaced individuals and egg collars of L. pulchella were lower at Site H than at Site F. Sizes of L. pulchella individuals and their egg collars as well as the somatic weight of the individuals at Site H were significantly smaller than those at Site F. These results suggest that the biological characteristics of L. pulchella largely differ between the two sites.

show abstract

Section: Discussionmentioning

confidence: 99%

Abundance and body size of the moonsnail <i>Laguncula pulchella</i> in the Misuji River estuary, Seto Inland Sea, Japan: comparison with a population in northern Japan

Yoshida

Sato

Narita

et al. 2017

Plankton Benthos Res

View full text Add to dashboard Cite

show abstract

“…While the production of these mollusks, apart from the Manila clam, has been gradually recovering since the earthquake (Tanabe 2013; Nagasawa et al 2016), far less is known about the post-quake impact of the alien snail L. pulchella. Before the earthquake, we conducted a series of field surveys along the Pacific coast of the Tohoku district over several years to examine the impacts of the invasive snail L. pulchella on the coastal ecosystem of the region and the commercially important Manila clam resources (Okoshi 2004;Okoshi and Sato-Okoshi 2011;Tomiyama et al 2011;Ohtsuki et al 2016). The surveys covered coastal areas from the inner bay of Soma City, Fukushima Prefecture, to Rokkasyo Village, Aomori Prefecture.…”

Section: Introductionmentioning

confidence: 99%

The “tsunami break:” impact of the Great East Japan Earthquake and the accompanying tsunamis on the shell growth of the invasive clam-eating snail Laguncula pulchella

Suzuki

Okoshi

2018

Fish Sci

Self Cite

View full text Add to dashboard Cite

The Great East Japan Earthquake and accompanying tsunamis occurred on 11 March 2011, causing huge damage to marine organisms. The invasive naticid gastropod Laguncula pulchella (Euspira fortunei), which was introduced with the imported clam Ruditapes philippinarum from China and Korea, survived the earthquake. The "growth break line" observed on the shell surface in over 90% of the individuals collected in Matsushima Bay and Matsukawa-ura Lagoon after the tsunamis was examined by scanning electron microscopy. Each shell presented three layers before and three after the growth break. However, the fracture surface consisted of five layers-two prismatic and three crossed lamellar-around the growth break line. This suggests that shell formation temporarily ceased following the tsunamis and that the five-layered shell may have developed in response to the stress caused by the tsunamis. The newly formed middle layer became thinner after the "tsunami break," which may be the result of a rapid change in the mineralization process, including rapid shell growth and/or repair. These results suggest that the damage to and forcible removal of habitats by the tsunamis was stressful for L. pulchella. A decrease in or the cessation of shell formation after a tsunami may be a common phenomenon in mollusks that inhabit tidal flats.

show abstract

The Effects of Liquefaction, Tsunami, and Land Subsidence on Intertidal Mollusks Following the Great East Japan Earthquake

Okoshi

2016

Ecological Impacts of Tsunamis on Coastal Ecosystems

View full text Add to dashboard Cite

Genetic Structures of Laguncula pulchella Metapopulations Along the Northeast Coast of Japan After the Tsunamis Caused by the Great East Japan Earthquake

Cited by 6 publications

References 13 publications

Abundance and body size of the moonsnail <i>Laguncula pulchella</i> in the Misuji River estuary, Seto Inland Sea, Japan: comparison with a population in northern Japan

Abundance and body size of the moonsnail <i>Laguncula pulchella</i> in the Misuji River estuary, Seto Inland Sea, Japan: comparison with a population in northern Japan

The “tsunami break:” impact of the Great East Japan Earthquake and the accompanying tsunamis on the shell growth of the invasive clam-eating snail Laguncula pulchella

The Effects of Liquefaction, Tsunami, and Land Subsidence on Intertidal Mollusks Following the Great East Japan Earthquake

Contact Info

Product

Resources

About