Higher species richness and abundance of fish and benthic invertebrates around submarine groundwater discharge in Obama Bay, Japan

Utsunomiya, Tatsuya; Hara, Masaki; Sugimoto, Ryo; Honda, Hiroaki; Kobayashi, Shiho; Miyata, Yoji; Yamada, Makoto; Tominaga, Osamu; Shoji, Jun; Taniguchi, Makoto

doi:10.1016/j.ejrh.2015.11.012

Cited by 26 publications

(21 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The outcome of the present work is in line with results from Obama Bay, Japan, showing a significantly higher abundance of fish at a groundwater discharge site (Utsunomiya et al, 2015). Also, a significantly higher abundances of turban snail, hermit crabs and gammarids were reported at the groundwater discharge site (Utsunomiya et al, 2015).…”

Section: Discussionsupporting

confidence: 90%

“…However, fishermen in many regions all over the world observe higher fish abundance around submarine springs and attribute the flourishing influence to the freshwater (Moosdorf and Oehler, 2017). This effect was scientifically confirmed only in locations in Japan reporting significantly higher abundances or biomass of fish (Utsunomiya et al, 2015;Hata et al, 2016;Shoji and Tominaga, 2018;Fujita et al, 2019). In Mauritius, a positive effect of fresh SGD on fitness of juvenile fish was observed (Lilkendey et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Enhanced Productivity and Fish Abundance at a Submarine Spring in a Coastal Lagoon on Tahiti, French Polynesia

2020

View full text Add to dashboard Cite

Submarine groundwater discharge (SGD), the direct discharge of groundwater into the sea, is abundant around the globe. Fresh SGD can occur as focused flow in submarine springs. However, little is known on the impact of submarine springs on marine organisms. For a better understanding of the interaction between SGD and its surrounding organisms, the impact of SGD on the abundance of fish was investigated in a coastal lagoon of Tahiti, French Polynesia. The study is based on the assumption of an enhanced biological production due to increased amounts of nutrient input caused by terrestrial groundwater supply into the sea. Biofouling processes and zooplankton samples were used as indicators for elevated nutrient input due to submarine springs. The main objective was to investigate the effect on the abundance of fish assuming a higher fish abundance possibly caused by a bottom-up control. Presented data show a significantly higher abundance around a submarine spring as well as significantly larger growth of algal turfs exposed to groundwater discharge. Zooplankton evaluations suggest slightly higher abundances around the submarine spring. The results suggest elevated nutrient concentrations transmitted by submarine springs may cause a bottom-up control resulting in a higher abundance of fish around the investigated submarine spring.

show abstract

Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Enhanced Productivity and Fish Abundance at a Submarine Spring in a Coastal Lagoon on Tahiti, French Polynesia

2020

View full text Add to dashboard Cite

show abstract

“…Consequently, they were able to report clear evidence for a direct association between SGD and coastal primary production. This visualization scheme has been applied in subsequent studies for marine organisms including fish (Utsunomiya et al, 2017). Furthermore, telemetry and biologging approaches for studying animal behavior associated with SGD will be helpful for future studies (Shoji et al, 2017;Stieglitz and Dujon, 2017).…”

Section: Bio-ecological Methodologymentioning

confidence: 99%

“…An increase of fish abundance and biomass and utilization of nursery areas has been observed in the vicinity of SGD (Hata et al, 2016;Utsunomiya et al, 2017;Starke et al, submitted;Yamane et al, 2019). The first location where an impact of SGD on fish abundance was directly recorded was in Obama Bay, Japan (Utsunomiya et al, 2017). There, the effect of nutrients transported via SGD on the food-chain was highlighted, because primary production was shown to be higher near SGD sites (Sugimoto et al, 2017).…”

Section: Bio-ecological Processesmentioning

confidence: 99%

Submarine Groundwater Discharge: Updates on Its Measurement Techniques, Geophysical Drivers, Magnitudes, and Effects

Taniguchi

Dulai

Burnett

et al. 2019

Front. Environ. Sci.

Self Cite

206

143

View full text Add to dashboard Cite

The number of studies concerning Submarine Groundwater Discharge (SGD) grew quickly as we entered the twenty-first century. Many hydrological and oceanographic processes that drive and influence SGD were identified and characterized during this period. These processes included tidal effects on SGD, water and solute fluxes, biogeochemical transformations through the subterranean estuary, and material transport via SGD from land to sea. Here we compile and summarize the significant progress in SGD assessment methodologies, considering both the terrestrial and marine driving forces, and local as well as global evaluations of groundwater discharge with an emphasis on investigations published over the past decade. Our treatment presents the state-of-the-art progress of SGD studies from geophysical, geochemical, bio-ecological, economic, and cultural perspectives. We identify and summarize remaining research questions, make recommendations for future research directions, and discuss potential future challenges, including impacts of climate change on SGD and improved estimates of the global magnitude of SGD.

show abstract

“…However, the impacts of groundwater discharge are not limited to nutrient loading: a wide range of organisms also respond to changes in water salinity, light penetration into water column, pH and turbulence (Short and Burdick, 1996;Troccoli-Ghinaglia et al, 2010;Lee et al, 2017). For example, groundwater input has been demonstrated to increase meiofauna diversity (Encarnação et al, 2015) and the abundance and body size of Mediterranean mussels (Piló et al, 2018) in Olhos de Agua beach in Portugal, and enhance species richness, abundance and biomass of fishes and invertebrates in Japanese coastal waters, where high groundwater-borne nutrient concentrations have been reported (Hata et al, 2016;Utsunomiya et al, 2017). Conversely, groundwater discharge reduces coral species diversity in coastal systems due to lower salinity (Lirman et al, 2003;Amato et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Enhanced Growth Rates of the Mediterranean Mussel in a Coastal Lagoon Driven by Groundwater Inflow

et al. 2019

View full text Add to dashboard Cite

Groundwater discharge is today recognized as an important pathway for freshwater, nutrients and other dissolved chemical substances to coastal systems. While its effect on supporting primary production in coastal ecosystems is increasingly recognized, its impact on growth of animals at higher trophic level (primary and secondary consumers) is less well documented. Here, we investigate the impact of groundwater discharge on the growth of the Mediterranean mussel (Mytilus galloprovincialis) in a coastal lagoon. Growth rates and condition index (tissue weight/shell weight) of mussels growing at groundwater-exposed sites and at a control site in Salses-Leucate lagoon (France) were measured. The mussels in this lagoon produce circadian (daily rhythm) growth increments in their shell, as opposed to semi-diurnal increments in tidally influenced systems. Mussels from groundwater-influenced sites have higher growth rate and condition index compared to those from a control site. Importantly, growth rates from groundwater-influenced sites are amongst the highest rates reported for the Mediterranean region (41 ± 9 µm d −1 ). The higher growth rates at groundwaterinfluenced sites are likely a consequence of both the higher winter temperatures of lagoon water as a result of groundwater discharging with relatively constant temperatures, and the groundwater-driven nutrient supply that increase the food availability to support mussel growth. Overall, this study demonstrates that groundwater discharge to Mediterranean lagoons provides favorable environmental conditions for fast growth of mussels of high commercial-quality.

show abstract

Higher species richness and abundance of fish and benthic invertebrates around submarine groundwater discharge in Obama Bay, Japan

Cited by 26 publications

References 18 publications

Enhanced Productivity and Fish Abundance at a Submarine Spring in a Coastal Lagoon on Tahiti, French Polynesia

Enhanced Productivity and Fish Abundance at a Submarine Spring in a Coastal Lagoon on Tahiti, French Polynesia

Submarine Groundwater Discharge: Updates on Its Measurement Techniques, Geophysical Drivers, Magnitudes, and Effects

Enhanced Growth Rates of the Mediterranean Mussel in a Coastal Lagoon Driven by Groundwater Inflow

Contact Info

Product

Resources

About