Current status of the megabenthic community in coastal Fukushima Prefecture, Japan, in the wake of the Great East Japan Earthquake
| Autor: | Toshihiro Horiguchi, Takafumi Aramaki, Keita Kodama |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Aquatic Organisms 010504 meteorology & atmospheric sciences Biodiversity Aquatic Science Oceanography 01 natural sciences Japan Abundance (ecology) Earthquakes Animals Biomass Transect 0105 earth and related environmental sciences Biomass (ecology) biology 010604 marine biology & hydrobiology Community structure General Medicine biology.organism_classification Pollution Crustacean Invertebrates Shrimp Fishery Geography Submarine pipeline Environmental Monitoring |
| Zdroj: | Marine environmental research. 140 |
| ISSN: | 1879-0291 |
| Popis: | We conducted fisheries-independent bottom-trawl surveys along the coast of Fukushima, Japan, from 2013 to 2017 to study the megabenthic community structure after the 2011 earthquake, tsunami, and nuclear disaster. Although we observed no substantial changes in biodiversity, total abundance and biomass fluctuated among years, primarily because of temporary increases in the abundance or biomass of small shrimp and squid, or variations in abundance or biomass of mid-sized fishes (i.e. puffers and flatfishes) and large elasmobranchs. Echinoderm abundance and biomass decreased in all areas. Crustacean abundance and biomass were extremely low in the central and southern offshore transects. Our results suggest that there has been no recognizable recovery in the megabenthic community, and megabenthic species off the coast of Fukushima might have been experiencing reproductive or recruitment failure. Further research is needed to reveal the causal factors behind changes in these megabenthic communities. |
| Databáze: | OpenAIRE |
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