On the reliability of Ponar grab samples for the quantitative study of benthic invertebrates in ponds L. Int PanisB. GoddeerisR. F. Verheyen OriginalPaper Pages: 147 - 152
Populations and production of fish in two small tributaries of the ParanĂ¡ River, ParanĂ¡, Brazil A. A. AgostinhoT. Penczak OriginalPaper Pages: 153 - 166
Streblocerus superserricaudatus sp. nov. from Venezuela N. N. SmirnovHaymara AlvarezMaria M. Castillo OriginalPaper Pages: 167 - 170
Feeding selectivity of Corbicula fluminea (Bivalvia) on natural phytoplankton Demetrio BoltovskoyIrina IzaguirreNancy Correa OriginalPaper Pages: 171 - 182
Change of microplankton community structure in response to fertilization of an arctic lake Parke A. RubleeNeil Bettez OriginalPaper Pages: 183 - 190
Use of the index of biotic integrity to assess physical habitat degradation in warmwater streams F. D. Shields Jr.S. S. KnightC. M. Cooper OriginalPaper Pages: 191 - 208