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Friday, May 23, 2025
Weekend Argus News

National Zoological Garden enhances marine collection with new arrivals

Staff Reporter|Published

The National Zoological Garden (NZG) has new additions of Marine life, consisting of three Blacktip Reef Sharks and more than 200 colourful marine fish. This latest development forms part of NZG’s ongoing mission to connect people with biodiversity and highlight the importance of marine conservation through education and immersive experiences.

Image: The National Zoological Garden

The National Zoological Garden (NZG) in Pretoria has taken a significant step towards enriching its marine life collection with the arrival of three Blacktip Reef Sharks and over 200 vibrant marine fish.

This new wave of aquatic inhabitants is set to energise the largest inland aquarium on the African continent, providing visitors with an even more captivating look into the complexities and beauty of ocean life.

In a bid to foster greater appreciation for biodiversity and marine conservation, the recent additions underline NZG's commitment to educating the public about the ocean's diverse ecosystems. Tracy Rehse, Director of Animal Collections at NZG, emphasized the importance of the latest arrivals. “The arrival of these animals not only adds to the beauty and diversity of our exhibits but also helps us tell a bigger story about ocean ecosystems and the threats they face.”

The National Zoological Garden has introduced hundreds of colourful marine fish to their aquarium

Image: The National Zoological Garden

The Blacktip Reef Shark (Carcharhinus melanopterus) is known for its striking black-tipped fins and hunting agility. Native to the shallow waters of the Indo-Pacific, these sharks are not just beautiful; they play a vital role in their ecosystem, preying on fish and crustaceans. Unfortunately, they are currently classified as vulnerable by the International Union for Conservation (IUCN) due to pressing threats such as habitat destruction and overfishing. Typically, these sharks live up to 12 years in the wild, yet in well-maintained aquariums, they can thrive for over 20 years, potentially reaching lengths between 1.5 to 2 metres.

The sharks journeyed to their new home, arriving at Johannesburg's OR Tambo International Airport from Kenya after a 10-hour flight. Each shark was carefully transported in a large 1,000-litre plastic tank equipped with secure lids and connected to life support systems, ensuring they received adequate oxygenation throughout their voyage. Upon arrival, the NZG team meticulously acclimatised the sharks, gradually adjusting water temperature, salinity, and pH levels to facilitate a smooth transition into their new environment.

The impressive marine relocation also includes 220 new fish species, such as the Powder Blue Tang, Skunk-striped Anemonefish, Stars and Stripes Pufferfish, and Green Bird Wrasse. Each member of this vibrant group was also transported individually in oxygen-rich marine water and introduced to their new home using controlled floating methods, allowing them to adjust to their surroundings without stress.

With the new marine residents now comfortably settled, they have begun to thrive, actively interacting with their environment and captivating the attention of visitors who flock to see them. The NZG encourages the public to explore this fascinating underwater realm right in the heart of Pretoria, reinforcing the importance of ocean life and marine ecosystems.