Roff, J. C.,  1942- <br/><br/>
Marine conservation ecology / 
John Roff and Mark Zacharias 
 - London :  Earthscan,  2011 
 - xx, 439 p. :  ill., maps ;  25 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781844078837 (hardback) 9781844078844 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marine resources conservation<br/>Marine ecosystem health<br/>Marine ecology