News

BFAR explains causes of Metro Manila fish kill

"THE  fish kill in the coastal areas of Las Piñas and Parañaque was not caused by blast fishing but from the poor level of oxygen and high levels of ammonia and phosphates in said water body.

Based on the tests conducted by the Bureau of Fisheries and Aquatic Resources-National Fisheries Laboratory Division and BFAR 4A on the water quality in three sampling areas, it showed that there is a poor level of dissolved oxygen and higher levels of ammonia and phosphates than the standard level. The  sampling areas were in San Dionisio and Bay City, both in Parañaque. [...]"

Read the full article here.


Marine fish kill in Jurien Bay Marina is being investigated

"Investigations are underway following the report of a fish kill at the Jurien Bay Marina, where large numbers of dead fish from a range of species have been found.

Department of Primary Industries and Regional Development officers are investigating the event, to gather information and assess the extent of the fish kill. They have also gathered suitable fish and water samples for laboratory testing. [...]"

Source: Department of Primary Industries and Regional Development (Australia)

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An oceanographic, meteorological, and biological ‘perfect storm’ yields a massive fish kill

Abstract.

"Mass mortality events are ephemeral phenomena in marine ecosystems resulting from anthropogenically enhanced and natural processes. A fish kill in King Harbor, Redondo Beach, California, USA, in March 2011 killed ~1.54 × 105 kg of fish and garnered international attention as a marine system out of balance. Here, we present data collected prior to, during, and following the event that describe the oceanographic conditions preceding the event, spatial extent of hypoxia (dissolved oxygen < 1.4 ml l−1), and subsequent recovery of the harbor. In situ sensors within the harbor revealed rapid decreases in dissolved oxygen in surface waters from 7 to 9 March 2011, coincident with the mortality event on 8 March. [...]"

Source: Marine Eco Progress Series
Authors: Beth A. Stauffer et al.
DOI: 10.3354/meps09927

Full article


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