Impact of hypoxia on the structure and function of benthic epifauna in Tolo Harbour, Hong Kong

Response of the epibenthic macrofaunal community to a strong upwelling-driven hypoxic event in a shallow bay of the southern Humboldt Current System

“…Justic et al, 1996;Keeling and Garcia, 2002;Gilbert et al, 2010;Stramma et al, 2010), development of hypoxia in coastal ecosystems has been recognized as an important system-level perturbation affecting ecological dynamics and also threatening fisheries around the globe (Grantham et al, 2004;UNEP, 2004;Chan et al, 2008;VaquerSunyer and Duarte, 2008;Rabalais et al, 2010;Stramma et al, 2010;Fleddum et al, 2011). Hence there is a pressing need to understand the structural and functional consequences of oxygen depletion in marine ecosystems (Levin, 2003).…”

The impact of a strong natural hypoxic event on the toadfish Aphos porosus in Coliumo Bay, south-central Chile

“…The former is associated with processes of coastal eutrophication, mainly due to the discharge into the coastal ocean of continental waters with high nutrient and organic matter loads. These human-caused hypoxias, in which dissolved oxygen is consumed mostly by prokaryote metabolism, are fairly common and widely studied, including their effects on populations and communities (Rabalais et al 2010 and references therein, Fleddum et al 2011, Kodama & Horiguchi 2011. The naturally-caused hypoxias, which are due principally to the photosynthetic generation of carbon and the associated microbial respiration, are related to permanently hypoxic water masses in the open ocean, referred to as Oxygen Minimum Zones (OMZ) (Helly & Levin 2004).…”

Implications of changes in the benthic environment and decline of macro-benthic communities in the inner part of Ariake Bay in relation to seasonal hypoxia

“…The other phenomenon is the occurrence of hypoxic waters near the shore in the innermost shallow areas, where a strong pycnocline tends to occur seasonally owing to large discharges of river water and increased solar radiation during the summer (e.g., Laholm Bay in the Southeastern Kattegat Sea in Sweden (Rosenberg et al 1992); the western Long Island Sound (Welsh & Eller 1991); and the Tampa Bay Estuary, Florida in the U.S. (Malloy et al 2007); as well as the estuarine areas of the Gulf of St. Lawrence Bay in Canada (Belley et al 2010); Dokai Bay (Ueda et al 1994(Ueda et al , 2000, Tokyo Bay , Kodama & Horiguchi 2011, and Osaka Bay (Tsujimoto et al 2008) in Japan; Youngsan Estuary and Chinhae Bay in Korea (Lim et al 2006); and Tolo Harbour in Hong Kong, China (Fleddum et al 2011).…”