Presentation on theme: "Wetlands By: International School of Kuala Lumpur Supported by: Zoo Negara."— Presentation transcript:
Wetlands By: International School of Kuala Lumpur Supported by: Zoo Negara
Introduction Zoo Negara: Place where we observed the different species of fish and habitats of themZoo Negara: Place where we observed the different species of fish and habitats of them –Observations: Various fish communities and habitatsVarious fish communities and habitats Physical attributes and adaptationsPhysical attributes and adaptations Possible reasons for variationPossible reasons for variation To enhance comprehension of Malaysian wetlandsTo enhance comprehension of Malaysian wetlands
Objectives To ascertain different factors that affect fishes’ adaptations to their environment.To ascertain different factors that affect fishes’ adaptations to their environment. To understand the purpose of these adaptationsTo understand the purpose of these adaptations In order to comprehend and be able to identify the different habitats along a single continuous streamIn order to comprehend and be able to identify the different habitats along a single continuous stream
Adaptations: Upper Stream Strong Current:Strong Current: –Streamlined ‘torpedo’ bodies –Swims fast Shallow WaterShallow Water –Small bodies Narrow streamsNarrow streams High oxygen contentHigh oxygen content Frigid watersFrigid waters Coarse, rocky substrateCoarse, rocky substrate Did you know?: upper stream fish have extremely hydrodynamic bodies!
Adaptations: Dams/Lakes CamouflageCamouflage –Grayish brown murky colors –Not easily seen by lurking predators Low Current:Low Current: –Flat bodies –Big fins –Superior mouths, only upper jaw moves Evidently, the creation of dams creates lakes; and a new habitat along the river for fish to inhabit.
Adaptations: Mid-Stream Mid-Stream:Mid-Stream: –Mixture of Upper stream & Lower stream –Current is fairly fast Fairly slim bodiesFairly slim bodies No big finsNo big fins Comparatively small fishComparatively small fish Fascinatingly, it is in the Mid- Stream where small headwaters meet up to form larger rivers!
Marshes, Bogs, and Swamps Astonishingly, The water is saturated with mud and dirt; yet fish species thrive here. Inclusive of rice paddy fieldsInclusive of rice paddy fields Rich diversity of fishRich diversity of fish –Suitable living conditions –Either petite and small or very large Home to snakeheadsHome to snakeheads
Adaptations: Lower Stream Surprisingly, lower streams are superior in size to the previous streams and lead into tributaries to the ocean. Low CurrentLow Current –Flat Bodies –Larger Fins –Slower Currents Slower moving fishSlower moving fish –Fairly Large Fish –Stronger to be able to move without aide of current
Adaptations: Peat Swamps Shallow waterShallow water –Surface feeders –Superior (upturned) mouths Murky watersMurky waters –Avoid predators –Plant decomposition –Tannins darken water From decomposing plantsFrom decomposing plants Small & ColorfulSmall & Colorful –Unable to be seen by predators Low DiversityLow Diversity Fun Fact: The peat swamps have PH levels less than 4.5, or as acidic as lemonade!
Adaptations: Mangroves Use low levels of oxygenUse low levels of oxygen Sometimes even develop lungs instead of gillsSometimes even develop lungs instead of gills Crabs are prevalentCrabs are prevalent Home to the amphibious mudskippersHome to the amphibious mudskippers Interestingly, the roots of mangroves are submerged in meters of water before they reach soil!
Unique Malaysian Adaptations Over 500 species of fish throughout MalaysiaOver 500 species of fish throughout Malaysia –Dully colored to remain hidden –Very few brightly colored fish, in contrast to Caribbean and Mediterranean species 70% of the fish present in the Malaysian wetlands are less than 3 centimeters long.70% of the fish present in the Malaysian wetlands are less than 3 centimeters long. –Malaysian fish tend to be extremely small!
Conclusion Fish adapt their physical appearances based on their environmentFish adapt their physical appearances based on their environment Behavioral adaptations of fish are common to accommodate their needsBehavioral adaptations of fish are common to accommodate their needs –Feeding –Survival –Reproduction etc. We learned there are diverse species in the wetlands especially in MalaysiaWe learned there are diverse species in the wetlands especially in Malaysia Special Thanks to :Special Thanks to : –Zoo Negara –Herman Ganapathy