ppt coral reefs final

Coral ReefsCoral Reefs

presented bypresented byNagarjuna. PamanjiNagarjuna. Pamanji

11stst Semester SemesterDepartment of Marine BiologyDepartment of Marine Biology

V.S.U CollegeV.S.U College

INTRODUCTIONINTRODUCTION Corals are marine animalsCorals are marine animals Coral colonies grow Coral colonies grow continuously in size by budding continuously in size by budding of polypof polyp

Coral themselves construct reefCoral themselves construct reef Coralline algae and Coralline algae and foraminiferan protozoansforaminiferan protozoans

INTRODUCTIONINTRODUCTION They requires above 20 degree They requires above 20 degree centigrade.centigrade.

They are limited Indian They are limited Indian Pacific, the Central Western Pacific, the Central Western Pacific, and the Caribbean Pacific, and the Caribbean region North of Bermuda.region North of Bermuda.

TYPESTYPES Corals are two typesCorals are two types 1. soft corals1. soft corals 2. hard corals2. hard corals Soft coralsSoft corals Sea plums are called soft coralsSea plums are called soft corals Hard coralsHard corals Made up of the hydrocorals and the stony coralsMade up of the hydrocorals and the stony corals

Soft coralsSoft corals

Hard coralHard coral

FORMATION TYPESFORMATION TYPES The coral reefs are three The coral reefs are three kindskinds

1.Fringing reef1.Fringing reef 2.Barrier reef2.Barrier reef 3.Atoll reef3.Atoll reef

ECONOMIC IMPORTANCE OF ECONOMIC IMPORTANCE OF CORAL REEFSCORAL REEFS

TOURISMTOURISM ORNAMENTATIONORNAMENTATION SERVES AS HABITAT FOR MANY SERVES AS HABITAT FOR MANY PLANTS AND ANIMALSPLANTS AND ANIMALS

RAW MATERIAL FOR LIME MORTAR AND RAW MATERIAL FOR LIME MORTAR AND CEMENTCEMENT

BARRIER AGAINST SEA EROSION AND BARRIER AGAINST SEA EROSION AND CYCLONIC STORMSCYCLONIC STORMS

ECONOMIC IMPORTANCE OF ECONOMIC IMPORTANCE OF CORAL REEFSCORAL REEFS

GOOD NURSERY GROUNDSGOOD NURSERY GROUNDS PETROLIUM DEPOSITSPETROLIUM DEPOSITS AS A DRUGAS A DRUG SELF EMPLOYMENTSELF EMPLOYMENT