Biology

YJ & Na Yeong & Sophie

Idea :
 * Dissect the aquatic species from the lake to see any effects of water contamination on the organisms in the lake (compare organs with that of the same species found on the internet)

Name of dissected fish: Vietnamese: Ca tram den English: Grass Carp Scientific: //Ctenopharyngodon idella// General Criteria of a healthy fish:
 * Even though it's a fish, it should not smell "fishy" -- it should smell fresh and clean.
 * Touch the fish: It should be firm and not slimy.
 * The skin shoudln't present a "rainbow" effect from surface oils. While not a complete fail, if this sign is present, it indicates some age and poor preservation on the fish.
 * Look at the tag which, by law, must tell you where the fish was harvested. If the location is very remote, be on guard.
 * If it smells bad, forget it. The scent of amonia is a killer. If the fish is obviously warm to the touch, forget it.
 * Store-bought fish should be gutted
 * If the fish have any "abnormalities" some parts of the scales are dark
 * Gills should be closed and not inflamed
 * The scales should be flat and intact
 * The stomach shouldn't be bloated
 * The eyes should be clear, cloudy eyes are not good

Obervation of the exterior anatomy:

Observation of the interior anatomy: