| genetic diversity of attached bacteria in the hindgut of the deposit-feeding shrimp neotrypaea (formerly callianassa) californiensis (decapoda: thalassinidae). | microbial colonization of marine invertebrate guts is widespread, but in general the roles that these bacteria play in the nutrition of their hosts are unknown. to examine the diversity and potential nutritional roles of hindgut microbiota in a deposit feeder, pcr-amplified 16s rrna genes were cloned from the bacterial community attached to the hindguts of the thalassinid shrimp neotrypaea californiensis exposed to different feeding treatments. partial 16s rdna sequences were analyzed for 30 clo ... | 2002 | 12043003 |
| brain acetylcholinesterase activity in shiner perch (cymatogaster aggregata) and juvenile chinook salmon (oncorhynchus tshawytscha) after application of carbaryl to control burrowing shrimp within willapa bay, washington. | carbaryl has been applied in willapa bay, washington, for five decades to control burrowing shrimp (neotrypaea californiensis and upogebia pugettensis) on commercial oyster (crassostrea gigas) beds. concerns about effects on nontarget species, including fishes, have led to restrictions in use despite a lack of data on in situ exposure. we measured brain acetylcholinesterase (ache) activity in adult shiner perch (cymatogaster aggregata) and juvenile chinook salmon (oncorhynchus tshawytscha) after ... | 2013 | 24042340 |
| response of an estuarine benthic community to application of the pesticide carbaryl and cultivation of pacific oysters (crassostrea gigas) in willapa bay, washington. | oyster culture operations on the west coast of north america have developed into complete farming operations for the introduced japanese oyster, crassostrea gigas, which now covers vast areas of the intertidal landscape, particularly in washington state where the pesticide carbaryl has also been used to control burrowing thalassinid shrimp for more than 30 years. field experiments were conducted to examine the effects of these habitat modifications on the benthic community in willapa, bay washin ... | 2001 | 11693637 |