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Laboratory evaluation of red-tide control agents
Red-tide toxicants were evaluated based on the following requirements: 100% lethality to Gymnodinium breve within 24 hours at concentrations of 0.01 p.p.m. or less and a selectivity threshold concentration at 0.1 p.p.m. ...
A net for sampling the intertidal zone of an estuary
Our problem was to develop a net for estimating relative abundance of postlarval brown shrimp (Penaeus aztecus) and white shrimp (P. setiferus) in the intertidal zone of Galveston Bay. This zone includes marsh, beach, tidal ...