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ADVANTAGES AND DISADVANTAGES OF MECHANIZATION

ADVANTAGES AND DISADVANTAGES OF MECHANIZATION farm mechanization ensures that all farm operation are done and completed within a given per...

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ECOLOGICAL FACTORS COMMON TO AQUATIC HABITATS



ECOLOGICAL FACTORS COMMON TO AQUATIC HABITATS

The following are the factors affecting aquatic habitat1. temperature, humidity, rainfall, wind ,pressure, pH and light have all ben explained earlier
2. SALINITY: salinity is defined as the degree of saltiness or concentration of salt solution in water. Salinity is low in fresh water, high in sea water and moderate ion brackish water
Aquatic organisms need to maintain the osmotic balance between their body fluid and their






aquatic fluid in order to survive. For example, organisms living in salt water will require some adaptive features to enable them get rid of some excessive water that enters their body while those in sea water equally have adaptations to enable them cope with excess water in their body
3.

TURGIDITY/TRANSPARENCY:

turgidity is caused as a result of suspended materials in water. Clear water has low turgidity. Turgidity is also influence by season. Turgidity is higher in the rainy season. Turgidity reduces light penetration into water, resulting in the inability of aquatic green plants to carry out photosynthesis. Turgidity also causes pollution

DISSOLVED GASES:

dissolved gases in this case refer to oxygen and carbon dioxide. The oxygen concentration of water decreases with depth. Oxygen is required by most aquatic organisms for respiration. It is also required for the decaying of organic materials or substances.. carbon dioxide is required as raw material for photosynthesis







4.
5.

DENSITY:

density of water varies the type of aquatic habitat. While the density of pure fresh water is 1.00, that of sea water is 1.028 at atmospheric pressure and at 0C. organisms like fishes have streamlined bodies which enable them to move through water easily while other organisms which float on the surface of the water are sensitive to changes in density
6.

CURRENTS:

water current increase aeration and turgidity of the water. It also affects the distribution of aquatic organisms. The type of organism found in an aquatic habitat is affected by the speed of current. For example, animals living in fast moving waters have structure that enables them to attach themselves to rock surfaces to avoid being swept away

TIDAL MOVEMENTS AND WAVES:

tidal movement and waves affects organisms in aquatic habitat. Most organisms in certain level of the water attach themselves to substances or they may even live in borrow. Some may possess hard body cover to prevent evaporation of water from their body. In the open sea, wave cause the aeration of the surface water, enabling aquatic organisms to have sufficient supply of dissolved gases for their respiration






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ecology and major biomes of the world

HERE YOU WILL FIND EVERY AVAILABLE TOPICS ABOUT AGRICULTURAL SCIENCE AND BIOLOGY. AND THE LINKS TO THEIR VARIOUS SOURCES.

1. DEVELOPMENT OF AGRICULTURE
2. IMPORTANCE OF AGRICULTURE
3. SUBSISTENCE AGRICULTURE
4. COMMERCIAL AGRICULTURE
5. PROBLEM OF AGRICULTURAL DEVELOPMENT
6. SOLUTIONS TO POOR AGRICULTURAL DEVELOPMENT
7. AGRICULTURAL LAWS AND REFORMS
8. ROLES OF GOVERNMENT IN AGRICULTURAL DEVELOPMENT
9. AGRICULTURAL POLICIES
10. PROGRAM PLANNING IN AGRICULTURE
34. FORESTRY
35. WILDLIFE CONSERVATION
36. FACTORS AFFECTING LAND AVAILABILITY
37. TOPOGRAPHY
38. SOIL
39. BIOLOGICAL FACTORS
40. SOCIAL-ECONOMIC FACTORS
41. ENVIRONMENTAL FACTORS AFFECTING AGRICULTURAL PRODUCTION
42. CLIMATIC FACTORS AFFECTING AGRICULTURAL PRODUCTION
43. TEMPERATURE
44. RAINFALL
45. WIND
46. SUNLIGHT
47. SOLAR






48. BIOTIC FACTOR AND AGRICULTURAL PRODUCTION
49. PESTS
50. BIRDS
51. DISEASES
52. SOIL MICRO-ORGANISMS
53. SOIL PH
54. ROCK FORMATION
55. IGNEOUS ROCK
56. SEDIMENTARY ROCKS
57. METAMORPHIC
58. SOIL AND ITS FORMATION
59. FACTORS OF SOIL FORMATION
60. LIVING ORGANISM
61. PARENT MATERIALS
62. SOIL FORMATION TOPOGRAPHY
63. PROCESS OF SOIL FORMATION
64. WEATHERING
65. PHYSICAL WEATHERING
66. CHEMICAL WEATHERING
67. PRESSURE
68. WATER
73. BIOLOGICAL WEATHERING
74. CHEMICAL AND BIOLOGICAL COMPOSITION OF THE SOIL
75. SOIL WATER
76. MICRO AND MACRO NUTRIENTS
77. SOIL MICRO ORGANISM
78. PROPERTIES OF SOIL
79. SOIL STRUCTURE
80. SANDY SOIL
83. SOIL TEXTURE
84. IDENTIFICATION OF SOIL TYPES THROUGH EXPERIMENTS
85. RETENTION OF WATER BY VARIOUS SOIL TYPES
86. DETERMINATION OF SOIL PH REACTION
87. COLORIMETRIC DETERMINATION OF SOIL PH LEVEL
88. PH SOIL TEST
89. PLANT NUTRIENTS
90.
MACRO NUTRIENTS IN GENERAL
112. THE MAINTENANCE OF SOIL FERTILITY
113. CROP ROTATION
114. APPLICATION OF ORGANIC MANURES
115. FARM YARD MANURE
116. APPLICATION OF INORGANIC MANURE
117. LIMING
118. FARMING PRACTICES
119. BUSH BURNING AND CLEARING
121. FERTILIZER APPLICATION
122. ORGANIC MANURING FARM YARD MANURE
124. HUMUS
125. COMPOST
126. CROP ROTATION
133. FARM POWER AND MACHINERY
134. SOURCES OF FARM POWER
135. HUMAN SOURCE/a>
149.
PLOUGHS
142. FIELD MACHINES
157. PLANTERS
164. SIMPLE FARM TOOLS
165. AGRICULTURAL MECHANIZATION
166. THE CONCEPT OF MECHANIZATION

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