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Effect Of Beta 1,3 Glucan In Stress Responses Of The Pencilfish (Nannostomus Trifasciatus) During Transport Within The Rio Negro Basin, Janessa S. Abreu, Richard P. Brinn, Levy C. Gomes, Dawn Michelle Mccomb, Bernardo Baldisserott, Sérgio F. Zaiden, Elisabeth C. Urbinati, Jaydione L. Marcon
Effect Of Beta 1,3 Glucan In Stress Responses Of The Pencilfish (Nannostomus Trifasciatus) During Transport Within The Rio Negro Basin, Janessa S. Abreu, Richard P. Brinn, Levy C. Gomes, Dawn Michelle Mccomb, Bernardo Baldisserott, Sérgio F. Zaiden, Elisabeth C. Urbinati, Jaydione L. Marcon
Department of Biological Sciences
We investigated the use of beta 1,3 glucan as an imunostimulant during a transport experiment to determine the effects upon the stress response of the pencilfish (Nannostomus trifasciatus). Pencilfish were fed for seven days with different concentrations of beta 1,3 glucan: 0.0% (control); 0.01%; 0.1% and 0.5% of beta 1,3 glucan per kg of feed-1. Fish were then transported for 24 hours by boat from Barcelos to Manaus. The highest dose of beta 1,3 glucan in the food increased Na+ influx after 12 hours of transport and 0.1 and 0.5% beta 1,3 glucan maintained the flux of …
Provision Of Ecosystem Services By Human-Made Structures In A Highly Impacted Estuary, Craig A. Layman, Zachary R. Jud, Stephanie K. Archer, David Riera
Provision Of Ecosystem Services By Human-Made Structures In A Highly Impacted Estuary, Craig A. Layman, Zachary R. Jud, Stephanie K. Archer, David Riera
Department of Biological Sciences
Water filtration is one of the most important ecosystem services provided by sessile organisms in coastal ecosystems. As a consequence of increased coastal development, human-made shoreline structures (e.g., docks and bulkheads) are now common, providing extensive surface area for colonization by filter feeders. We estimate that in a highly urbanized sub-tropical estuary, water filtration capacity supported by filter feeding assemblages on dock pilings accounts for 11.7 million liters of water h−1, or ~30% of the filtration provided by all natural oyster reef throughout the estuary. Assemblage composition, and thus filtration capacity, varied as a function of piling type, …