Article

Does the survivorship of activated resting stages in toxic environments provide cues for ballast water treatment?

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The toxic effects of three inorganic metals (Cu, Cr, Hg), three organic (phenol, formalin, ammonium) chemicals, ozone-enriched water and peroxides (H2O2) on embryonic development were tested in 8 species
from the Porifera, Bryozoa and Crustacea. Toxicants with lower molecular weight showed stronger negative impacts on post-diapause embryos than chemicals with higher molecular weight if related to the toxicity of the chemicals to active adult stages. Only few embryos of the cladoceran Moina macrocopa and none of the cladoceran Wlassicsia pannonica treated with peroxides at concentration 0.3% developed further. Ozone-enriched water had no significant effect on post-diapause embryonic development in cladocerans. Ammonium (the product of NH4OH dissociation) in concentration 100 mg/l and higher killed all embryos of M. macrocopa inside protective membranes. Peroxides and ammonium are suggested for the purification of ship ballast waters as effective, non-expensive and non-persistent toxic chemicals. Resting stages of invertebrates including at least Crustaceans, Porifera and Bryozoa seem to allow not only dispersal among toxic industrial environments such as ship ballast compartments, but may also endure serious pollution events common in seaports and estuaries. Artemia cysts due to their strong protection against different toxic substances are recommended as a model for studies of toxic effects in diapausing stages in polluted estuaries and marine environments

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Ketersediaan

Informasi Detail

Judul Seri

Marine Pollution Bulletin

No. Panggil

ATC PO EEV d

Penerbit

Rusia : Elsevier., 2010

Deskripsi Fisik

5 p.

Bahasa

English

ISBN/ISSN

0025-3260

Klasifikasi

PO

Tipe Isi

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Tipe Media

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Tipe Pembawa

online resource

Edisi

-

Subjek

Diapause
Invertebrates
Toxicants
Estuary pollution

Info Detail Spesifik

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Pernyataan Tanggungjawab

Victor Alekseev

Versi lain/terkait

Lampiran Berkas

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