Silver shimmer of the summer sea. Small, slender and fast, with a brilliant silvery stripe along its side. It lives in huge schools near the surface, feeding on plankton and fish eggs. The anchovy is a vital part of the marine food web. Without it, the kahawai, kingfish and seabirds would have nothing to eat. The system relies on this small fish. Its body is compressed and streamlined, built for speed and manoeuvrability. The lower jaw projects forward, and the mouth is large for such a small fish. It is filled with fine teeth that help strain plankton from the water. The silvery stripe along the flank reflects light. This makes the fish difficult for predators to track in the shimmering surface waters. Camouflage is key. Anchovies school in enormous numbers, sometimes covering hectares of ocean surface. From above, the schools appear as dark patches on the water. From below, the shimmer of thousands of silvery bodies creates a moving, liquid mirror that confuses predators. This is the strategy of the forage fish: safety in numbers. The individual disappears into the whole. They are not targeted by commercial fisheries in New Zealand, but they are occasionally caught as bycatch in trawl nets. Their real value is ecological. They convert microscopic plankton into protein that flows up the food chain to the kahawai, the kingfish, the gannets and the dolphins. The energy transfer is efficient. Summer brings them into northern harbours and estuaries. The water warms, the plankton blooms and the anchovies arrive in shimmering, pulsing schools. They are a sign that the system is working, that the ocean is healthy and that the food web is intact. The arrival signals abundance. To watch an anchovy school from a wharf is to see the ocean breathing. The surface dimples. The silver flashes. The school shifts and reforms, a single organism made of thousands of parts. And then, without warning, it is gone. It vanishes into the green water, leaving only ripples and the memory of silver. The moment passes.