The Ecology of Tijuana Estuary, California: An Estuarine Profile

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Table 17. Conceptual model of channel algal dynamics, based on the work of Rudnicki (1 986) and Fong (1 986;. Environmental condition Phytoplankton response Macroalgal response Marme t~des dom~nate ln~t~al low b~omass Nulrtent addiilon Increase Increase Warni tomperatures Increase Decrease D~nofiagellates bloom lntt~al low biomass Sal~n~ty rcduct~on Bluegreen monads bloom General decrease urlless at 10 ppt high nutr~ent conc Stuggcsh currents D~lut~ort anci export Biomass accumulates bloom develops No currents Blooms develop Water temperature rlses and l~m~ts macroalgal bloom Optcrnol cnv~ronniertt,iI H~gh nutrients High nutrients cand~tions No ttdal flush~ng Reduced currents Warm temperatures Cool temperatures Any sal~rr~ty Salrne water Table 18, Producttvity of benthtc algal mats and compar~son wtth vascular plants (from Zedler 1980). idr.icjt.r Unricr Ulldt'r ilrider Algal prcstitrt,trvily ~bsl~~rlalus cardqra54, Jaotrtc,4 scrltworl .,tiore gld~i Wei prrnlary prudutt~v~ty esllmdtc OtiS Gross prc prcd F'S 1 2. %~dd:e irlarsh datum C(~~ffic~ent o+ varialaon
Page 1 and 2:
June 1986 I THE ECOLOGY OF TIJUANA
Page 3 and 4:
The findings in this report are not
Page 5 and 6:
CONVERSION TABLE Metric to U.S. Cus
Page 7 and 8:
Page 4.5 Energy Flow ..............
Page 9 and 10:
Number Page The channel fish cornrn
Page 11 and 12:
ACKNOWLEDGMENTS The California Sea
Page 13 and 14:
Figure 1. Lacatlcrn of 71juana Estu
Page 15 and 16:
Figure 3. Map6 of Tijuana Estuary s
Page 17 and 18:
FI(I(uPc$ 4. Wei&rahOt@ patt@rns of
Page 19 and 20:
also limitrng Hot, dry desert winds
Page 21 and 22:
2.3 LAND USE HlSPQWV Through exami!
Page 23 and 24: The nearby bridge remained, and ext
Page 25 and 26: flushing until mid-December 1984. E
Page 27 and 28: with seawater. Even in years with s
Page 29 and 30: flats ~n winter but not in midsumme
Page 31 and 32: Each "island" of higher topography
Page 33 and 34: The vegetation and soils of the upp
Page 35 and 36: populations (Massey 1979) The brrds
Page 37 and 38: c~n~entrations of insects, especial
Page 39 and 40: Frgufe 29. The Ifght-footed clapper
Page 41 and 42: Figure 30. During winter (above) th
Page 43 and 44: anlmal footprints, In the hardpan f
Page 45 and 46: Tijuana Estuary salt marsh Such exp
Page 47 and 48: Frgura 36 The etraracrel an& tidal
Page 49 and 50: ^_ _I __"___I _-a_. -- fable 7. Inv
Page 51 and 52: Pre- 1980 (excluding Hosrner Rehse
Page 53 and 54: Table 8. Average density (number/m2
Page 55 and 56: changes in envlronment has not been
Page 57 and 58: was dominated by goby species, Cali
Page 59 and 60: compared the ,chthyoplankton commun
Page 61 and 62: Figure 43, Birds of the intertidal
Page 63 and 64: -" and that the community was compo
Page 65 and 66: Willet (1 73) i - Water Depth (cm)
Page 67 and 68: Table 14. Early information on dune
Page 69 and 70: Figure 48. Birds that nest on the s
Page 71 and 72: CHAPTER 4 ECOSYSTEM FldNCTlONlNG St
Page 73: were no? irght-saturated untri expo
Page 77 and 78: Table 19. Net aboveground productiv
Page 79 and 80: _I___ I__-~--- 4.4.1 Nitragen Fluxe
Page 81 and 82: i i t 1 1 I Table 22. Standing crop
Page 83 and 84: calculated from chlorophyll a measu
Page 85 and 86: Dissolved Organic Biomass Carbon De
Page 87 and 88: CHAPTER 5 THE ROLE OF DISTURBANCES
Page 89 and 90: Table 25. Changes in elevation in t
Page 91 and 92: Table 26. Change in pickleweed cano
Page 93 and 94: Table 27. Occurrence (in circular 0
Page 95 and 96: perennials can survive long periods
Page 97 and 98: An experiment was designed to deter
Page 99 and 100: CHAPTER 6 MANAGEMENT CONSIDERATIONS
Page 101 and 102: Closely associated with the researc
Page 103 and 104: c. Dredging at Tijuana Estuary will
Page 105 and 106: Table 30. Predicted impacts of redu
Page 107 and 108: footed clapper rails; the picklewee
Page 109 and 110: overwashas, and slabiiizatran rs rl
Page 112 and 113: REFERENCES Allen, L.G. 1980. Struct
Page 114 and 115: Minsky, D. 1984. California least t
Page 116: 30272 -101 REPORT WUMENTATION 1. RE
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