Education Phylum chordata - Fish

1.Phylum ChordataSubphylum Vertebrata2. Infraphylum Gnathostomata• Class Placodermi (Paleozoic armoured fishes)– Extinct• Class Chondrichthyes (Cartilaginous fishes)–…

Documents Demographic or ecosystem management?

The Pew Oceans Commission Demographic or ecosystem management? 2 What is a âpopulationâ of a fish species? How do we define âpopulationâ? spatial component reproductive…