BIOL 1070 Study Guide - Midterm Guide: Unionidae, Caspian Sea, Glochidium

• School: University of Guelph
• Department: Biology
• Course: BIOL 1070
• Professor: Shoshanah Jacobs

Document Summary

Zebra mussels: the zebra mussel is native to eastern eurasia, specifically the black sea and caspian. ", and "what methods did they use, what evidence do they have, and how reliable is their data?" The native mussel fauna: around the world there are approximately 850 species of freshwater mussels known, na is the most diverse with more than 300. In ontario the native mussels are all part of the family unionidae, but within this there are several distantly related subfamilies, 41 different species in the province alone. Mussel life cycle: unionidae have a very interesting life cycle as part of the cycle includes a component of obligate parasitism, most of the species in ontario are dioecious (two houses), meaning they have separate males and females. Males release their sperm through their exhalent siphon, is taken up by the females by an inhalant siphon.