In this video I first take a look at the Banggai cardinalfish, Pterapogon kauderni. This is an invasive species which was introduced to the Lembeh Strait in the year 2000, and now competes with anemonefish for territory. Although it appears to be thriving in the Lembeh Strait and a few other locations, the Banggai cardinalfish is nonetheless still an endangered species because of its popularity in the ornamental fish trade.
We then encounter other species of cardinalfish (Apogonidae) in the area, Moluccan cardinalfish, Ostorhinchus moluccensis, the orbiculate cardinalfish, Sphaeramia orbicularis, and the frostfin cardinalfish, Ostorhinchus hoevenii, sheltering in the spines of sea urchins.
Finally we witness a trumpetfish, Aulostomus chinensis, preying on a small group of frostfin cardinalfish. The trumpetfish's slim profile and stealth allow it to creep up very slowly on the unsuspecting cardinalfish, before making its attack. The trumpetfish sucks in the cardinalfish in a method known as "pipette feeding".
There are English captions showing either the full narration or the common and scientific names of the marine life, along with the dive site names.