| accumulation of polychlorinated terphenyls in aquatic biota of an estuarine creek. | aroclor 5432, a mixture of polychlorinated terphenyls (pct), was detected in several biological compartments including saltmarsh cordgrass (spartina alterniflora), american oysters (crassostrea virginica), red-jointed fiddler crabs (uca minax), wharf crabs (sesarma reticulatum), and mummichogs (fundulus heteroclitus) collected from tabbs creek. this tidal creek is located in the southern chesapeake bay region and contains sediments with high concentrations of pct. samples were collected at four ... | 1993 | 7507821 |
| substrate mediates consumer control of salt marsh cordgrass on cape cod, new england. | cordgrass die-offs in cape cod, massachusetts, usa, salt marshes have challenged the view that the primary production of new england salt marshes is controlled by physical factors. these die-offs have increased dramatically over the last decade and are caused by the common herbivorous marsh crab sesarma reticulatum, but other factors that control crab impacts remain unclear. we examined the influence of plant nutrient supply and disturbances on sesarma herbivory by fertilizing plots and creating ... | 2009 | 19739373 |
| morphological and behavioral antipredatory adaptations of decapod zoeae. | zoeae of some species of estuarine decapods are retained in the estuary throughout development while others are exported into nearshore coastal waters. the horizontal migrations of decapod zoeae to coastal waters may have evolved to reduce the probability of encountering planktivorous fishes which are most abundant in the estuary. if so, then the morphological vulnerability of zoeae to fish predation should be inversely related to the number of predators occurring where they develop. six species ... | 1987 | 28311521 |
| an invasive species facilitates the recovery of salt marsh ecosystems on cape cod. | with global increases in human impacts, invasive species have become a major threat to ecosystems worldwide. while they have been traditionally viewed as harmful, invasive species may facilitate the restoration of degraded ecosystems outside their native ranges. in new england (usa) overfishing has depleted salt marsh predators, allowing the herbivorous crab sesarma reticulatum to denude hundreds of hectares of low marsh. here, using multiple site surveys and field caging experiments, we show th ... | 2013 | 24279265 |