The Thin Birdsnest Coral, Needle Coral – Seriatopora hystrix is a species of colonial coral known for its delicate, branching structure and its ability to thrive in a wide range of marine environments. This coral’s intricate morphology and adaptability make it a fascinating subject of study for marine biologists and a popular addition to reef aquariums.
Description & Characteristics
The Seriatopora hystrix is characterized by its thin, needle-like branches that grow in a dense, bushy manner. These branches are typically white to yellowish-brown in color and can reach a maximum size of up to 10 inches (25 cm) in height. The coral polyps, responsible for feeding and reproduction, are small and numerous, giving the coral a finely textured appearance. This coral is a popular choice for reef aquariums due to its unique growth habit and vibrant colors, which can range from bright green and yellow to shades of orange and brown.
Habitat and Occurrence
The Thin Birdsnest Coral, Needle Coral – Seriatopora hystrix is a common inhabitant of shallow, tropical reefs throughout the Indo-Pacific region. It typically inhabits the Intertidal (Eulittoral), intertidal zone between the high and low tide lines characterized by the alternation of low and high tides, making it a prevalent presence in these aquatic ecosystems. This coral species is highly adaptable to a range of environmental conditions, including exposure to strong currents and fluctuating water temperatures.
Taxonomy
The species Seriatopora hystrix belongs to the Class: Hexacorallia, Order: Scleractinia, and Family: Pocilloporidae. This classification places it among the stony corals, a diverse group of marine invertebrates known for their hard, calcium carbonate skeletons.
Feeding
The Thin Birdsnest Coral, Needle Coral – Seriatopora hystrix is a heterotrophic organism, meaning it relies on external sources of food. It primarily feeds on plankton, microscopic organisms that drift in the water column. The coral polyps use their tentacles to capture and ingest these tiny food particles. However, they also benefit from a symbiotic relationship with zooxanthellae, single-celled algae that live within their tissues. These algae photosynthesize, providing the coral with a supplementary source of energy in the form of sugars. This symbiotic partnership allows the Seriatopora hystrix to thrive in environments with moderate light levels.
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