不需要 螃蟹太多 不要证
不知道这种情况还能持续多久
现在抓很难抓到几只公的 这样下去 怀疑种群规模会锐减的吧 作者: leciel95 时间: 12-8-2013 01:06
wa渔政给的说法
Good years and bad years: recruitment
‘Recruitment’ is a term used by researchers to describe
the addition of crabs or fish (juvenile or of legal size) to a
population, either by reproduction or migration.
Levels of recruitment of adult crabs to WA’s blue swimmer
crab populations fluctuate considerably. A range of
environmental factors – including water temperature
variations, the relative strength of wind and current systems,
and the amount and timing of rainfall – can affect the
survival and growth rates of crab larvae and juveniles. This
in term leads to big fluctuations in the available crab harvest
from time to time.
Estuaries along WA’s west coast, including the Peel-
Harvey near Mandurah, are under pressure from rapid
population growth. This includes increases in recreational
and commercial fishing activity, urban development and
associated environmental change, which may also affect
crab recruitment.作者: 深海2010 时间: 12-8-2013 01:14
这帖子作用强大，今日下午好多华语人士云集作者: leciel95 时间: 12-8-2013 01:23
呵呵 今天天气好 估计人多 好抓么?作者: mingmingzhang 时间: 12-8-2013 13:47
楼主上照片，上周的成果啊作者: leciel95 时间: 12-8-2013 13:54
