IMIS | Flanders Marine Institute

Flanders Marine Institute

Platform for marine research


Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (1): add | show Print this page

one publication added to basket [258047]
Heavy metal accumulation in Littoraria scabra along polluted and pristine mangrove areas of Tanzania
De Wolf, H.; Rashid, R. (2008). Heavy metal accumulation in Littoraria scabra along polluted and pristine mangrove areas of Tanzania. Environ. Pollut. 152(3): 636-643.
In: Environmental Pollution. Elsevier: Barking. ISSN 0269-7491; e-ISSN 1873-6424, more
Peer reviewed article  

Available in  Authors 

    Littoraria scabra (Linnaeus, 1758) [WoRMS]
Author keywords
    Dar es Salaam; heavy metals; Littoraria scabra; mangrove; Zanzibar

Authors  Top 

    The periwinkle Littoraria scabra was collected at polluted and pristine mangrove sites along the Tanzanian coastline, including Msimbazi, Mbweni (i.e. Dar es Salaam) and Kisakasaka, Nyamanzi and Maruhubi (i.e. Zanzibar). Periwinkles were morphologically characterized, sexed and their heavy metal content was determined using ICP-MS. Analysis revealed that L. scabra from polluted areas contained higher soft tissue heavy metal levels, were significantly smaller and weighed less compared to their conspecifics from the unpolluted mangroves. The current morphological observations may be explained in terms of growth and/or mortality rate differences between the polluted and non-polluted sites. Although a variety of stressors may account for these adverse morphological patterns, our data suggest a close relationship with the soft tissue heavy metal content. Compared to soft tissue heavy metal levels that were measured in L. scabra along the same area in 1998, most metals, except for arsenic, chromium and iron have decreased dramatically.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors