| fish lesions in the chesapeake bay: pfiesteria-like dinoflagellates and other etiologies. | ulcerative lesions and mass mortalities of atlantic estuarine fish, particularly menhaden (brevoortia tyrannus), have been associated with exposure to pfiesteria-like dinoflagellates and their toxins. we collected fish from the chicamacomico river, maryland, and observed solitary ulcerative lesions on the majority of menhaden sampled. one striped bass (morone saxatilis) had an area of reddening around the base of the dorsal fin. bluegill (lepomis machrochirus), channel catfish (ictalurus punctat ... | 1998 | 9601194 |
| etiologies, observations and reporting of estuarine finfish lesions. | lesions in estuarine finfish are associated with a variety of organisms including parasites and bacterial, viral, and fungal infectious agents. in addition, trauma, suboptimal water quality, and other abiotic stress factors may result in the loss of homeostasis. we have observed solitary ulcerative lesions on menhaden sampled from the chesapeake bay, maryland, the pimlico river, north carolina, and the st. johns river, florida. histologically, the lesions demonstrated a marked chronic inflammato ... | 2000 | 11460735 |