Kajian aspek perikanan dan biologi ikan kembung (rastrelliger brachysoma, Bleeker 1851) yang didaratkan di Pelabuhan Perikanan Nusantara Karangantu, Serang, Banten = Fisheries and biological aspect of short bodied mackerel (rastrelliger brachysoma, Bleeker 1851) which landed in the Karangantu Fishing Port, Serang, Banten