Page 195 - Freshwater-Biology-and-Ecology-Handbook
P. 195

Figure 4.10
                                                                        Carbon dioxide freeze corer (Photo John Davy-Bowker)




























                                                                                                    Figure 4.11
                                                         Material collected on a liquid nitrogen freeze corer (Photo John Davy-Bowker)



                                                                  Freshwater Biology and Ecology Handbook  |  195
                                                                                                                 –
   190   191   192   193   194   195   196   197   198   199   200