CAS BI 260 Lecture Notes - Lecture 8: Thalassia Testudinum, Sporophyte, Gametophyte
2 Mar 2020
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2 small animals cepifauna epiphytes and detritus are consumed c providing substrate for planktivorus epi fauna facilitates more energy being incorporated vi threats to seagrass a nutrient addition seaweeds may respondmore rapidly to nutrient addition outcompete seagrasses. Suspension feeder reduction removal mars result in phytoplanktonicebloom prevents c seagrass wasting disease epidemic causes massive loss light from reaching seagrasses. A global distribution i require hard substrates since they don"t have roots they have hold fasts ii widespread but often on lower west side of continents. B dominant species i lam in atra sp ii macrousstis sp iii nereoosstis sp iv peragophisarssp. 2 microscopic haploid gamete producing gametophyte ii holdfasts. D formation of kelp forests iii one1mand stripesgrow from holdfasts and fronds grow from stipes iv frondssuspended by gas filled pneumato cysts. Fsupportcommunities i rockybottoms inhabited bysponge seaurchins ii many live on stipes and fronds iii not many grazers eat kelp because they"re strong.
