Seagrass Meadows 0.0 / 5 ? zoologyMarine EcologyUniversityNone Created by: Maria5Created on: 29-12-19 22:28 Are seagrass meadows widely distributed? Yes 1 of 30 How extensive is the seagrass meadow in Spencer Gulf meadow, Australia? 4000km2 2 of 30 What type of habitat are seagrass meadows? Coastal 3 of 30 Most seagrass meadows require soft sandy-mud substratum 4 of 30 What do seagrasses prefer? Clear light water with mild currents 5 of 30 What is seagrasses relationship with sediment? Increase sedimentation rates and organic content 6 of 30 Seagrasses first appeared 100mya 7 of 30 Most seagrasses within how many genera? 3 8 of 30 Leaves with sheaves live in high energy environments 9 of 30 What transports oxygen to lower structure Lacuna system 10 of 30 Rhizomes spread horizontally 11 of 30 How do seagrasses reproduce sexually 12 of 30 Algae, sponges, hydroids, sea anemones, snails and bryozoans are examples of Epibionts 13 of 30 High structural complexity of meadow provides? All 14 of 30 Green turtles forage during day time 15 of 30 Sea cows have cheek teeth adapted to grinding cellulose rich vegetation 16 of 30 During feeding dugongs create what? tracks 17 of 30 Manatees have a wider or small range than dugongs? wider 18 of 30 Manatees have a more generalist diet including all 19 of 30 Seagrasses bury what % of the estimated organic carbon buried by the ocean 10% 20 of 30 What percent of the oceans surface do seagrass meadows occupy? 0.2% 21 of 30 The lack of stability and resuspension of sediment in meadows means organic carbon can be preserved in soils for millannia 22 of 30 What gets trapped in meadow blades? all 23 of 30 Which researchers found microplastic trapped in seagrass sediment? (Huang et al,. 2019) 24 of 30 Ecosystem services estimated at what by (Short, 2011)? US$34,000 per ha 25 of 30 Construction of a single harbour in France directly destroyed ?? ha and indirectly ??ha 11ha and 68ha 26 of 30 Why does removal of coastal vegetation threaten seagrass meadows? affects water clarity 27 of 30 An estimated total area of ??? was lost globally between 1879 and 2006 3370km2 28 of 30 Losses of two football pitches every minute 29 of 30 in how many yrs did a transplanted area merge into natrual meadow in Australia? 5 30 of 30
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