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Sharks: Protecting our Oceans from Algae Devastation (An ecosystem…
Sharks:
Protecting our Oceans from Algae Devastation
The rapid decline of Sharks
14 fatal attacks since 2012
(Fatal shore; Shark attacks in Australia, 2017).
Finning-
Removing the fin & leaving the carcass at sea.
(Dell'Apa, Smith & Kaneshiro-Pineiro, 2014).
11,417 sharks finned per hour (Worm et al., 2013).
Commercial Fishing
Sharks are used for human consumption cosmetics,
souvenirs, vitamins, oils and leather
(Department of Fisheries, 2015).
Environmental sustainability- The role of sharks
Regulates the marine ecosystem by 'grooming' marine life
Maintaining the carbon cycle
Maintains algae from overgrown and suffocating reefs
(Ruppert, Travers, Smith, Fortin & Meekan, 2013)
life span
Although long lived, sharks are slow to reach sexual maturity and have a low fertility rate (The Department of Environment and Energy, n.d.).
Protected Species
In Australia all sharks are commercially protected. (Department of Fisheries, 2015)
An ecosystem without sharks?
diminished marine life
damage to coral reef
outbreak of disease
contaminated waters
Without sharks grooming marine life
Larger fish species will eat more smaller fish
The smaller fish prevent algae outbreaks
Algae will suffocate reefs, poison our oceans and harm marine life
effects of algae bloom
Contains toxins that are harmful to animals and humans
reefs that protect our shorelines will be destoyed
Contamination