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Full-Text Articles in Physical Sciences and Mathematics
Small-Scale Settlement Patterns Of The Oyster Crassostrea Virginica On A Constructed Intertidal Reef, Ian K. Bartol, Roger Mann
Small-Scale Settlement Patterns Of The Oyster Crassostrea Virginica On A Constructed Intertidal Reef, Ian K. Bartol, Roger Mann
Biological Sciences Faculty Publications
The construction of three-dimensional, intertidal reefs resembling those widely present during colonial times in the Chesapeake Bay, but now absent due to years of overharvesting, may provide a more ecologically advantageous environment for oyster settlement and subsequent survival than present subtidal, two-dimensional habitats. We examined settlement processes on a constructed, 210 x 30 m intertidal reef composed of oyster shell. The reef was destructively and non-destructively sampled weekly throughout the summer and fall at tidal heights ranging from 30 cm above to 90 cm below mean low water (MLW) and at two substrate levels (reef surface and 10 cm below …
Factors Affecting The Recruitment Of Juvenile Caribbean Spiny Lobsters Dwelling In Macroalgae, Mark J. Butler Iv, William F. Herrnkind, John H. Hunt
Factors Affecting The Recruitment Of Juvenile Caribbean Spiny Lobsters Dwelling In Macroalgae, Mark J. Butler Iv, William F. Herrnkind, John H. Hunt
Biological Sciences Faculty Publications
In south Florida, Caribbean spiny lobsters (Panulirus argus) settle and spend their first few months in macroalgae or seagrass. After a few months, these ''algal-phase'' juveniles emerge from vegetation and, as ''postalgal-phase'' juveniles, seek refuge in crevices, often dwelling in groups. The importance of crevice shelters in determining the abundance of postalgal-phase juvenile spiny lobsters has been studied but we know little about the processes affecting lobster distribution and survival during their cryptic algal-dwelling phase. We found that postlarval supply varied independently of changes in the structure of macroalgal settlement habitat. For this reason, postlarval supply alone can not reliably …
Seasonal Abundance Of Autotrophic Picoplankton In The Pagan River, A Nutrient Enriched Subestuary Of The James River, Virginia, Lillian N. Davis, Karen A. Phillips, Harold G. Marshall
Seasonal Abundance Of Autotrophic Picoplankton In The Pagan River, A Nutrient Enriched Subestuary Of The James River, Virginia, Lillian N. Davis, Karen A. Phillips, Harold G. Marshall
Biological Sciences Faculty Publications
Autotrophic picoplankton had average monthly concentrations of 73.5 X 106 cells/L in the Pagan River, with summer-early fall maxima of 108 cells/L. The abundance peaks increased with rising water temperatures, declining to their least abundance in mid-winter (105 cells/L).