baby在大自然中應是吃以下圖底的浮游生物,圖中的輪蟲是~130micro dia,那是我用~60micro的網去迎紅樹林泥灘捕捉的,我不是讀生物的,所以請專家們指點一下,圖中下部浮游生物,究竟是那種生物, 詳細資料可看圖下remark,那段是我在其他討論區發過的版本,對不起我懶去譯中文了.
i try to collect wild copepods by a small plankton net(only wave it in water by two hands), want to know the degree of usefulness of the small net and the abundance of copepod in particular location in winter.
date & time: 26/12/05, 14:00, sunny day
location: a mangrove beach
water temp: 20 degree C(winter)
water depth: 2 feet
tides : rising
i use florida Farm 50 micron plankton net (5"dia,15"long)with a 2m long rod,
wave it by hands slowly on the surfuce of water for 15 mins ,mix the collected bottle';s water up to 1L seawater.
i roughly count the amount and type of copepod in this collection:
1) 2-3 /ml (nauplii of copepods,i only guess it is nauplii)=90%
2) 0.2-0.3/ml ( adult of copepods or one is bigger than nauplii )=10%
3) total collect about 3,000 pcs copepods
below pics are in same magnification,the rotifers are s-rotifer(110-140 micron).
the two nauplii below the rotifers.
just for fun in holiday! any bro. has experience in collecting wild copepods for sharing .
文字
i try to collect wild copepods by a small plankton net(only wave it in water by two hands), want to know the degree of usefulness of the small net and the abundance of copepod in particular location in winter.
date & time: 26/12/05, 14:00, sunny day
location: a mangrove beach
water temp: 20 degree C(winter)
water depth: 2 feet
tides : rising
i use florida Farm 50 micron plankton net (5"dia,15"long)with a 2m long rod,
wave it by hands slowly on the surfuce of water for 15 mins ,mix the collected bottle';s water up to 1L seawater.
i roughly count the amount and type of copepod in this collection:
1) 2-3 /ml (nauplii of copepods,i only guess it is nauplii)=90%
2) 0.2-0.3/ml ( adult of copepods or one is bigger than nauplii )=10%
3) total collect about 3,000 pcs copepods
below pics are in same magnification,the rotifers are s-rotifer(110-140 micron).
the two nauplii below the rotifers.
just for fun in holiday! any bro. has experience in collecting wild copepods for sharing .
文字
