Biophysical Survey of Mafia Island Marine Reserves

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97% 0% Figure 28. Average percentage cover of substrates at site 1 (inner shallow) at MBIMR. 37% 3% 38% 25% Figure 29. Average percentage cover of substrates at site 2 (inner shallow) at MBIMR. . b) Benthic composition Rock Rubble Sand Rock Rubble Sand Biomass of benthic flora and fauna was assessed alongside substrate composition. Site 1 (inner shallow) was highly dominated by Thalassodendron cilatum (54%) with much lower percentage of Thalassia hemprichi present (4%); low levels of macroalgae, sponge, and scleractinian corals were also recorded (Figure 30). Of the total area, on
average 35% was formed of bare substrates. Site 2 had similar levels of Thalassodendron cilatum and bare substrates to site one (Figure 31). However, in contrast to site 1, site 2 had almost four times the amount of algae (primarily Sargassum spp.) and no Thalassia hemprichi present. 35% 0% 4% 1% 2% 0% 4% 54% Thalassodendron cilatum Thalassia hemprichi Haduole universis Hadoule ovalis Sponge Hard Coral Algae Anenome Soft Coral Figure 30. Pie chart showing percentage cover of organic benthic communities. 33% 0% 0% 15% 1% 1% 0% 50% Bare Substrate Thalassodendron cilatum Thalassia hemprichi Haduole universis Hadoule ovalis Sponge Hard Coral Algae Anenome Soft Coral Bare Substrate Figure 31. Pie chart showing percentage cover of organic benthic communities.
Page 1: Frontier Tanzania Environmental Res
Page 4 and 5: Suggested Technical Report citation
Page 6 and 7: Executive Summary Major Findings
Page 8 and 9: price it fetches may be contributin
Page 10 and 11: IV. RESULTS A. Nyororo Island Marin
Page 12 and 13: I. INTRODUCTION Project Aim To cond
Page 14 and 15: The reserves were established under
Page 16 and 17: III. METHODS A. Field Methods 1. Re
Page 18 and 19: Ground Proofing Methodology (Low Re
Page 20 and 21: Invertebrate Abundance Invertebrate
Page 22 and 23: Commercially Targeted Fish The meth
Page 24 and 25: Indian Ocean Bird wrasse Gomphosus
Page 26 and 27: Several areas of coral reef habitat
Page 28 and 29: area, the most extensive continuous
Page 30 and 31: Average abundance (+/- SE) 30 25 20
Page 32 and 33: Average abundance (+/- SE) 3 2.5 2
Page 34 and 35: stop off or shelter. Boats from the
Page 36 and 37: 2. Coral Reef Habitat a) Benthic Co
Page 42 and 43: 68% 5% 18% 2% 0% 1% 0% 6% 0% 0% Tha
Page 44 and 45: on Mbarakuni. At times of good weat
Page 46 and 47: edge is visible at around 10m deep.
Page 52 and 53: c) Invertebrate abundance Invertebr
Page 54 and 55: lobster fishing. A foreign financed
Page 56 and 57: (Chaetodon trifascialus) are closel
Page 58 and 59: transects. Commercial fish species
Page 60 and 61: damage at present, but if further u
Page 62 and 63: VI. Appendices Appendix 1. Fish spe
Page 64 and 65: Whitespotted Epinephelus Grouper ca

Biophysical Survey of Mafia Island Marine Reserves

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