This is a video about the Cagayan river in the Philippines; part 1.
Part 2 is here.
From ARI News:
Asia’s most expensive fish in danger of extinction due to quarrying
Sep, 23 2008
(TUGUEGARAO CITY, Philippines) — Priced at about P4,000 a kilogram ($US86 per kilo) and probably one of Asia’s most expensive fish, “Ludong“, which is found in the seas off Cagayan, is in danger of extinction if irresponsible quarrying activities continue.
As a response to the mounting protests by residents and concerned agencies against illegal sand quarrying operations in the Cagayan River along the towns of Lal-lo and Camalaniugan, Malacañang has issued Executive Order 747 creating the Cagayan River Basin Project Management Office.
The order mandates the PMO in coordination with the Department of Environment and Natural Resources to implement policies and studies on the river basin
The Bureau of Fisheries and Aquatic Resources reported that support has swelled to put a stop on the destructive quarrying.
BFAR Director Jovita Ayson warned of the possible extinction of two endemic and economically important bivalves locally known as ‘unnok’ (Delillia sp.) and ‘cabibi’ (Batissa violacea) due to the disturbance of their habitat.
Another species that might be affected is the migratory ‘ludong’, a very expensive fish whose migration route can be affected because of sand extractions.
“It is very important that these illegal activities be regulated because it’s true that it may pose risks to agriculture due to possible salt-water intrusion, I cannot allow this to happen, we need to carefully study its effects to avoid regret in the future,” Ayson said.