BIOL 1070 Study Guide - Midterm Guide: Glochidium, Unionidae, Bivalve Shell
11 Dec 2016
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Document Summary
Introduction to the course and the teaching team. Strategies for infecting fish host: baits and traps. Glochidia enclosed in membranous capsules that mimic host prey. Packets of glochidia, eaten by host or stick to host. Mussel physically grips host and pumps glochidia over gills. Modified mantle tissue catches fish attention to attract host. Modified mantle tissue mimics fish or invertebrate prey item to attract fish host. Can settle on and attach to any solid surface. Statement with regard to the mussels having veliger vs. glochidia larvae. Species with veliger larvae are more likely to go extinct due to higher levels of gene flow. Veliger larvae that disperse freely, contributes the most to the extraordinary success of. Abundance (distribution and number of individuals of a specific species in a specific ecosystem) Intraspecific variation (variation occurring within a specific species where as interspecies is different species) Diversity (verity of different species in a certain area)
