farmsandcanbeusedasbiofilters,butthecapabilityof mangroves to cope with solid sediments dredgedfrom shrimp ponds is limited. Our study in PakPhanang, Thailand, confirmed that the excess sed-iments discharged from nearby shrimp pondsreduced mangrove growth rates and increasedmortality rates. A series of transformed multi-temporal satellite images was used in combinationwiththefielddatatosupportthisclaim.Inaddition,acomparison between four dominant mangrove spe-cies revealed that
Avicennia marina
could toleratesedimentation rates of >6 cm year
–1
, while
Brugui-era cylindrica
tolerated sedimentation rates of 5 cmyear
–1
(totalsedimentdepth = 25 cm)beforedying,while
Excoecaria agallocha
and
Lumnitzera race-mosa
performed intermediate. This outcome im-plied that in our situation
A. marina
and to lesserextent
E. agallocha
and
L. racemosa
could be moreeffectiveasbiofiltersthan
B. cylindrica
,astheymaysurvive the sedimentation longer in the disposalareas. Further studies on the impact of sedimenta-tionandchemicalpollutionofshrimpfarmwastesonmangrove mortality and growth are required