Trace element accumulation in sp. (Scyphozoa) from urban marine environments in Australia

Michelle A. Templeman (1) , Michael J. Kingsford (1)

1 JCU - James Cook University

Jellyfish are robust, short-lived animals, tolerant to a wide range of environmental conditions and pollutants. The benthic jellyfish, sp. was collected from five locations along the north eastern coast of Australia and analysed for trace elements to determine if this species has potential as a marine biomonitor. Both the oral arm and bell tissues readily accumulated aluminium, arsenic, barium, cadmium, chromium, copper, iron, manganese and zinc above ambient seawater levels. In contrast, lithium appeared to be actively regulated within the tissues while calcium, magnesium and strontium reflected the ambient environment. The multi-element signatures showed spatial variation, reflecting the geographical separations between locations, with locations closer together showing more similar elemental patterns. The combination of bioaccumulative capacity, life history traits and biophysical aspects indicate that this species has high potential as a biomonitor in coastal marine systems.

Mots clés: jellyfish; trace metals; bio-uptake; Australia; biomonitor

Michelle A. Templeman, Michael J. Kingsford. Trace element accumulation in sp. (Scyphozoa) from urban marine environments in Australia. Marine Environmental Research, 2010, 69 (2), pp.63. ⟨10.1016/j.marenvres.2009.08.001⟩. ⟨hal-00563094⟩