Friday morning, 22 March 2002 8:30 Session I (Superior) Functional Morphology chair: Alexander G. Cheroske Functional morphology of antennular setae of scyllarid lobsters. Dolores Weisbaum* and Kari Lavalli 8:45 The design of the decapod claw: inferring closing force from claw mechanical advantage. Graeme M. Taylor* and Paul S. Schmidt 9:00 A vision in white . . . and blue?: flexibility in stomatopod color communication associated with different light environments. A. G. Cheroske* and T. W. Cronin Burrow ventilation by thalassinid shrimp from the northern Gulf of Mexico: mechanics of effluent plumes and effects on benthic communities. Christopher Finelli* Life history phases and the biomechanics of Chondrus crispus. E. Carrington,* S. P. Grace, and T. Chopin 9:15 9:30 9:45 Reconfiguration in intertidal Chondrus crispus Stackhouse. Michael L. Boller* and Emily Carrington 7:30-8:30 Continential Breakfast Session II (Michigan) Session III (Okeechobee 1) Species Distribution Human Impacts and Restoration chair: Linda Sedlacek chair: David Eggleston Small-scale spatial variability in Spawning and developmental success harpacticoid emergence on a of horseshoe crabs in Jamaica Bay, continental shelf. Linda Sedlacek* NY: a highly disturbed urban and David Thistle estuary. Mark L. Botton,* Robert E. Loveland, and Tomio Itow Distribution and abundance of Anthropogenic impacts and zooplankton at three depth increments plant/plant interactions. E. Irlandi,* over a Florida coral reef. K. L. M. Reiber, and K. Taplin O’Neil,* K. B. Heidelberg, and K. P. Sebens Size-class spatial distribution of the Mortality estimates of the southern soldier crab Mictyris longicarpus bay scallop (Argopecten irradians Latreille. Francesca Rossi* concentricus), in the Gulf of Mexico. J. M. Greenawalt,* T. K. Frazer, and Stephanie R. Keller Spatial and temporal distribution of Long-term changes in intertidal oyster life history variants in the red alga, reefs and the potential effects of Mastocarpus papillatus. Janna boating activities. Raymond Fierst,* Janet Kübler, and Steve Grizzle,* Jamie Adams, and Linda Dudgeon Walters Factors controlling the distribution of The interacting effects of humans and the green algal species Codium nature on marine populations: fragile at the Isles of Shoals. Adam hurricanes and fishing contribute to C. Jones* and Larry G. Harris population decline in the blue crab. David B. Eggleston,* L. E. Etherington, and E. G. Johnson Spatial displacement of the snail Fishing pressure and the blue crab, Melampus bidentatus by a sympatric Callinectes sapidus: reproductive salt marsh snail. Sarah Lee* and consequences. D. L. Wolcott,* A. M. Brian Silliman Carver, T. Wolcott, and A. H. Hines 10:00-10:30 Coffee break Session IV (Okeechobee 2) Feeding chair: Melissa A. Tillack Differential dissolution and sorption of 234Th, 210Pb, and 7Be in depositfeeder digestive fluids. David H. Shull* and Lawrence M. Mayer Lipid class and fatty acid profile of a benthic harpacticoid copepod, Heteropsyllus nunni; with a comparison of pelagic copepod lipid classes. Judith L. Williams* Can whelks find food in flowing fluid?. Matthew C. Ferner* and Marc J. Weissburg Feeding methods of Balanus eburneus and Balanus amphitrite in the Indian River Lagoon, Florida. Melissa A. Tillack* and Lee F. Braithwaite Benefits and costs of fast food: feeding and growth of southern oyster drills, Stramonita haema-stoma (Gastropoda: Muricidae), on sabellariid worm reefs. J. T. Watanabe* and C. M. Young Gut passage times in penaeid shrimp: differences between field and laboratory measurements and relevance to aquaculture. Jennifer Beseres* and Robert Feller Friday morning, 22 March 2002 Session I (Superior) Life History chair: Mark Hay Fiddler crab fitness: exercise and the cost of sex. Bengt J. Allen* and Jeffrey S. Levinton Session II (Michigan) Spatial Ecology chair: John Vavrinec Mussel patch dynamics and spatial temporal heterogeneity. R. A. Coleman,* L. Benedetti-Cecchi, J. Paula, N. J. Frost, and S. J. Hawkins Session III (Okeechobee 1) Human Impacts and Restoration chair: TBA Testing the effects of crab predation cues on enhancing clam restoration efforts. Lindsay Whitlow,* William Walton, and Beth Walton 10:45 Fitness consequences of prey depletion for the common goby, Pomatoschistus microps. Angus C. Jackson,* Simon D. Rundle, and Martin J. Attrill Factors determining the composition of infaunal beach communities at large scales. M. T. Frost, M. J. Attrill, A. A. Rowden 11:00 Tough decisions—having sex or being dinner: the dilemma for some tropical seaweeds. Mark E. Hay* and Julia Kubanek Marine macroecology: evidence from patterns in soft sediment fauna in the UK. Andy Foggo* Sustainability of a new mechanical clam harvesting rotation plan to manage the hard clam (Mercenaria mercenaria) fishery in North Carolina. Eileen M. Vandenburgh,* Charles H. Peterson, Sean P. Powers, and Patricia L. Murphey Estimation of expectation and uncertainty of augmented fish production of artificial reef. Sean P. Powers,* Jonathan H. Grabowski, Charles H. Peterson, and William J. Lindberg 11:15 Fitness consequences of allorecognition-mediated agonistic interactions in the colonial hydroid Hydractinia [GM]. D. L. Ferrell* Pen shell community patterns and assemblage: local and regional dynamics. Pablo Munguía* Ecological impacts of artificial structures in estuaries. Fabio Bulleri* 11:30 The effect of substrate abundance on oviposition behavior and the consequences of communal egglaying in the apple murex snail, Phyllonotus pomum. Cheryl A. Swanson* Indiscriminate fusion of swimming sponge larvae. Katie E. McGhee* Do regional assembly rules determine the structure of coral reef assemblages in the Indo-Pacific Ocean?. Camilo Mora,* Paul Chittaro, and Peter Sale Assessing the roles of habitat complexity and scale in oyster reef restoration. Mark Luckenbach,* P. G. Ross, Alan Birch, Stephanie Bonniwell, and Susan Spears 10:30 11:45 Spatial and temporal complexity in Infaunal colonization and succession the progression and perpetuation of in a 21-acre disturbance: the creation alternate algal states of the Friendship marsh. S. John Vavrinec,* Robert S. Steneck, Moseman,* C. Forder, and L. Levin Douglas C. McNaught 12:00-13:30 Lunch Session IV (Okeechobee 2) Feeding chair: John D. Parker Dietary preference for leaves of the red mangrove (Rhizophora mangle) as measured by leaf damage and by mangrove tree crab (Aratus pisonii) gut contents. A. A. Erickson,* M. Saltis, S. S. Bell, and C. J. Dawes Foraging ecology of Herring Gulls (L. argentatus) and Great Black-backed Gulls (Larus marinus) in New England. Michelle Rome* and Julie C. Ellis Does preferential herbivory of manatee grass over turtle grass explain zonation of these two species in seagrass beds adjacent to the Belize barrier reef? E. J. von Wettberg,* A. H. Altieri, E. W. Boyd, M. D. Lage, C. P. Mullan, B. R. Silliman, Y. Toyanaga, and M. D. Bertness Predation on seeds of seagrasses by a tanaid crustacean Zeuxo sp.: impact on seed production of Zostera marina and Zostera caulescens. Masahiro Nakaoka* Specialization on Spartina alterniflora by a detritivorous amphipod. John D. Parker,* Mark E. Hay, and Joseph P. Montoya Friday afternoon, 22 March 2002 Session I (Superior) Fertilization, Spawning, and Settlement chair: TBA Fertilization success on a surface brooding gorgonian. Howard R. Lasker* Session II (Michigan) Symbionts chair: TBA Session III (Okeechobee 1) Ecosystem chair: Lulien Lartigue Session IV (Okeechobee 2) Spiny Lobsters chair: Mark J. Butler Digestive symbionts of the fiddler crab Uca pugnax: who, where, and why? Lara K. Gulmann* and Lauren S. Mullineaux Consumer regulation of marsh primary production. Brian Reed Silliman* and Mark Bertness 13:45 The effect of pre-settlement factors on life history patterns in red algae (Rhodophyta). Casey Terhorst,* Janna Fierst, Janet Kübler, and Steve Dudgeon Star-crossed sponges: the spongebrittlestar association between Callyspongia vaginalis and Ophiothrix lineata. Timothy P. Henkel* and J. R. Pawlik 14:00 Influence of secondary metabolites from Caribbean sponges on bacterial surface colonization. Sarah R. Kelly* and Joseph R. Pawlik 14:15 Responses of juvenile and adult Streblospio benedicti (Spionidae) to chemical cues bound to glass microbeads H. K. Mahon* and D. M. Dauer 14:30 Are we chronically underestimating the abundance of lobster postlarvae? Eric R. Annis,* Ruth Howell, and Robert S. Steneck Hitchhiking hydroids: assessing the relationship between the coquina clams Donax and the hydroid Lovenella gracilis. Joanne R. Dougherty* and Michael P. Russell Mining biodiversity: molecular profiles of eubacterial associates of Caribbean marine sponges. Jose V. Lopez,* Cheryl L. Peterson, P. J. McCarthy, Holly Page, T. Pitts, and Shirley A. Pomponi Possible sources for symbiont variation within the genus Aiptasia over time and space. Meredith Dorner,* Scott Santos, Gemma May, and Mary Alice Coffroth Linking habitat change and nutrient dynamics: comparison of food webs and nitrogen fluxes in burrowing shrimp- and oyster-dominated habitats. Theodore H. DeWitt* and Peter M. Eldridge Measuring microphytobenthic production and consumption using a spectrophotometric method. A. L. Dunsmuir* and J. Cebrian Everglades restoration and the effects of changing salinity on hard-bottom communities in Florida Bay. Mark J. Butler,* Scott Donahue, and Tom Dolan Quarantined! Ecological ramifications of disease in the caribbean spiny lobster, Panulirus argus. Donald C. Behringer, Jr.*, Mark J. Butler IV, and Jeffery D. Shields 14:45 Control of hatching in an estuarine crab: hatching program in the embryo, and a few chemicals as an analog of the “hatching-program inducing substance (HPIS)." M. Saigusa* and H. Ikeda 13:30 Marine reserves in the Florida Keys National Marine Sanctuary: are they protecting spiny lobsters?. Carrollyn Cox* and John H. Hunt The relationship between surface water nutrients, seagrasses and their associated epiphytes along Florida’s central gulf coast. S. R. Keller,* J. M. Greenawalt, and T. K. Frazer The impact of sponge loss and recovery on the florida bay benthic community Michael J. Childress* An ecophysiological approach to understanding patterns of nitrate reduction in estuarine macroalgae. Julien Lartigue* and Tim D Sherman Behavior of grouped spiny lobsters, Palinurus argus, under attack by piscine predators, Balistes capriscus. K. L. Lavalli,* W. F. Herrnkind, M. Childress, and A. Evans The variable effects of suspension feeders and nutrient enrichment on phytoplankton biomass in intertidal pools on Swan’s Island, Maine. Elizabeth T. Methratta* Friday afternoon, 22 March 2002 Alphabetical index to poster session Saturday morning, 23 March 2002 Session I (Superior) Blue Crab Ecology chair: Thomas G. Wolcott 8:30 Population dynamics and movement patterns of blue crabs in estuarine salt marshes. Eric G. Johnson* and David B. Eggleston 8:45 Environmental cues and secondary dispersal of blue crabs. Nathalie B. Reyns* and David B. Eggleston 9:00 Selective tidal-stream transport behavior of ovigerous blue crabs Callinectes sapidus: role of circatidal activity rhythms. Richard A. Tankersley,* Richard B. Forward, Jr., and Patricia N. Pochelon Ultrasonic telemetry of blue crab nocturnal ebb-tide transport near a barrier island inlet. Sarah D. Carr,* Richard A. Tankersley, James L. Hench, Richard B. Forward, Jr., and Richard A. Luettich, Jr. Entrainment of the larval release rhythm of the blue crab, Callinectes sapidus, by step changes in salinity and the light:dark cycle. Tracy A. Ziegler,* Richard A. Tankersley, and Patricia Pochelon Migration of adult female blue crabs—do they smoke after mating? Thomas G. Wolcott,* Donna L. Wolcott, Heather V. Turner, and Anson H. Hines 9:15 9:30 9:45 7:30-8:30 Continental breakfast Session II (Michigan) Session III (Okeechobee 1) Environmental Effects Coral Reef Disease, Bleaching, and chair: Steve Jury Stress chair: Joseph R. Pawlik Ecological consequences of El-Niño Redwoods of the reef? Demography Southern Oscillation to coral reef of the Caribbean barrel sponge Foraminifera. F. Kelmo* and M. Xestospongia muta. Joseph R. Attrill Pawlik* Catastrophic disturbance, ecosystem degradation, and population phase shifts in Chesapeake Bay. Romuald N. Lipcius* and Rochelle D. Seitz Effects of hemichordate bioturbation on infaunal abundance and composition on a sandflat in southeastern North Carolina. Troy Alphin,* Martin Posey, and David Wells The effect of dynamic hypoxia on the movement patterns and depth distribution of adult blue crabs within a highly eutrophic river. Geoffrey W. Bell,* David B. Eggleston, and Thomas G. Wolcott The influence of temperature on activity and density relative to catch per unit effort in lobster traps. Steve Jury,* Walter Golet, Hunt Howell, and Win Watson Antioxidant response of Leiostomus xanthurus (spot) to hypoxia Rebecca Cooper,* Lisa Clough, Mary Farwell, and Terry West Is mucus a primary means of ultraviolet radiation protection in reef building corals?. S. A. Schopmeyer* and D. F. Gleason Modeling the effects of chronic increases in seawater temperature on the population biology of reef corals. Peter J. Edmunds* Session IV (Okeechobee 2) Species Distribution chair: Cliff Cunningham Physiology in the field: large and small-scale gradients of photosynthetic performance in fucoid algae M. Lamote, Y. Lemoine, and L. E. Johnson.* Discrimination of fish from mangroves and reefs using otolith microchemistry. Paul M. Chittaro* To drill or not to drill? Ecology and evolution of a latitudinally variable predator-prey interaction. Eric Sanford,* Melissa S. Roth, Glenn C. Johns, and George N. Somero Bleaching stress and photosensitivity in Amphistegina gibbosa, a reefdwelling foraminifer. D. E. Williams,* P. Hallock, G. McRae, and D. Otis Life at the edge: examination of the northern geographic range limit of an intertidal snail. S. E. Gilman* How will warming temperatures affect a gorgonian–coral-pathogen system? Experiments with the sea fan (Gorgonia ventalina)–Aspergillus interaction. Jessica R. Ward,* Drew Harvell, and Kiho Kim Size-specific rates and magnitude of inducible antifungal defense in gorgonian sea fans Laura Petes* and Drew Harvell Ice age kelp forests: climate-driven changes in kelp forest distribution and productivity since the last glacial maximum. Michael H. Graham* 10:00-10:30 Coffee break A research coordination network to study the historical ecology of the trans-Atlantic marine biota. Cliff Cunningham* Saturday morning, 23 March 2002 10:30 10:45 Session I (Superior) Plant and Animal Dispersal chair: Susan Bell Session II (Michigan) Nutrient Uptake and Effects chair: Joseph Staton Seed dispersal and landscape-scale dispersal limitation in the cobble beach plant metacommunity. Jacqueline L. P. Gamiño,* Margaret A. Dolan, and John F. Bruno Desiccation resistance during the seato-land transition in the land hermit crab postlarva. Renae Brodie* Analysis of Biscayne Bay sediments: do benthic Foraminifera of the bay reflect trace metal contamination? A. M. Hoare,* P. Hallock Muller, B. H. Lidz, C. D. Reich, and E. A. Shinn Effect of salinity variation and pesticide exposure on an estuarine harpacticoid copepod, Microarthridion littorale (Poppe), in the southeastern US. J. L. Staton,* N. V. Schizas, S. L. Klosterhaus, R. J. Griffitt, G. T. Chandler, and B. C. Coull The effects of zinc on arm regeneration rates and tissue development patterns in the brittlestars Ophiothrix angulata and Amphipholis gracillima. Rosemary E. Hall* and Steve E. Stancyk Nutrient limitation of benthic macrophytes in the upper Florida Keys: an in-situ nutrient enrichment experiment. Meredith Ferdie* and James W. Fourqurean Biogeochemical controls on the stable C and N isotopic composition of marine sponges in the Florida Keys. J. B. Weisz,* M. Southwell, C. S. Martens, and N. Lindquist Hydrodynamic characterization of shoal communities in Florida Bay: implications for nutrient uptake Chris D. Cornelisen* and Florence I. M. Thomas 11:00 Dispersal and recruitment in terrestrial versus marine environments: the benthos is not just an underwater landscape. C. Ashton Drew* and David B. Eggleston 11:15 Seagrass dispersal: seeds, sediments, and serendipity. S. S. Bell,* M. S. Fonseca, Margaret O. Hall, Kamille Hammerstrom, W. J. Kenworthy, P. Whitfield, and M. Finkbeiner Fragments of the seagrasses Halodule wrightii and Halophila johnsonii as potential recruits in Indian River Lagoon, Florida. L. M. Hall,* M. D. Hanisak, and R. W. Virnstein Movement of the green sea urchin, Strongylocentrotus droebachiensis, within three subtidal habitats of the Gulf of Maine. Kristine E. Faloon* and C. E. Siddon 11:30 11:45 Session III (Okeechobee 1) Hybridization and Coral Reproduction and Speciation chair: David B. Carlon Asymmetric gametic incompatibility between the blue mussels Mytilus edulis and Mytilus trossulus. Christin T. Slaughter,* Paul D. Rawson, and Phil O. Yund Hybrid resistance in the tropical Pacific soft coral Sinularia maxima x S. polydactyla: chemical and structural defenses. Marc Slattery, Valerie J. Paul, and Robert Thacker Session IV (Okeechobee 2) Community Ecology chair: Steve Dudgeon Reproductive isolation among the Montastraea annularis species complex. Don R. Levitan* and Nancy Knowlton Inclusion of facilitation into ecological theory, models, and paradigms. John F. Bruno,* John J. Stachowicz, Mark D. Bertness Incipient speciation across a depth gradient in the tropical coral Favia fragum. D. B. Carlon* and A. F. Budd Shifts in wetland community composition across estuarine salinity gradients: physical and biological determinants. Caitlin Mullan,* Mark Bertness, and Brian Silliman Soft-bottom benthic assemblages associated to intertidal boulder fields: testing for generality of patterns across time and space. J. J. Cruz* Sex expression of a Caribbean coral, Porites astreoides. S. Tso* and D. F. Gleason 12:00-13:30 Lunch How big is big enough? Modeling the establishment of alternative states on rocky intertidal shores in the Gulf of Maine. Peter S. Petraitis* and Steve Dudgeon The when, where and why of alternative states in rocky intertidal landscapes. Steve Dudgeon,* Christin Slaughter, and Peter S. Petraitis Biodiversity of Bear Seamount, New England seamount chain: results of exploratory trawling. J. A. Moore,* M. Vecchione, K. E. Hartel, B. B. Collette, J. K. Galbraith, R. Gibbons, M. Turnipseed, M. Southworth, and E. Watkins Saturday afternoon, 23 March 2002 13:30 13:45 14:00 14:15 14:30 14:45 Session I (Superior) Larval Dispersal and Recruitment chair: Kevin B. Johnson Using automated sampling equipment and estuary scale modeling to investigate the physical-biological coupling of larval transport. J. F. Hamilton,* R. B. Whitlatch, and R. W. Osman Where have all the larvae gone? Inferring patterns of larval dispersal in an intertidal crab using microsatellite markers. Robert J. Toonen Session II (Michigan) Predation chair: TBA Spiny lobsters: a model for horn development in ceratopsian dinosaurs. Samuel F. Tarsitano,* Kari L. Lavalli, Francis Horne, and David Rodriguez Session III (Okeechobee 1) Coral Reefs chair: Richard B. Aronson Water flow effects on energetics of the scleractinian coral Agaricia tenuifolia in Belize. Kenneth P. Sebens,* Brian Helmuth, Emily Carrington, and Brad Agius Session IV (Okeechobee 2) Community Ecology chair: Lisa Levin Variation in consumer interactions: the roles of multiple predators and time. Christopher E. Siddon* and Jon D. Witman Anti-predation strategies in marine worms: to hide or be distasteful, that is the question. C. E. Kicklighter* and M. E. Hay Scale-dependent effects of flow on coral reef primary production. Robert C. Carpenter* Avoiding offshore transport of competent larvae during upwelling events: the case of the gastropod Concholepas concholepas in Central Chile . Elie Poulin,* Alvaro T. Palma, Diego Narvaez, Sergio A. Navarrete, and Juan C. Castilla Brachyuran megalopal availability in the Lower Cape Fear River estuary. Russell W. Barbour,* Martin H. Posey, Troy D. Alphin Photoresponses of Müller’s larvae of the flatworm Maritigrella crozieri. Kevin B. Johnson* and Richard B. Forward, Jr. Hydroid defenses against predators: importance of secondary metabolites vs. nematocysts. R. Channing Jones,* John J. Stachowicz, and NielsLindquist The results of monitoring hard corals restored following the installation of telecommunication cables off Hollywood, Florida. Donald R. Deis* Trophic interactions between bacteria and meiofauna in the Gulf of Mexico deep-sea: sink or link for carbon secondary production?. J. Baguley,* P. Montagna, L. Hyde, J. Deming, and S. Carpenter Food-web structure in introduced and native mangrove communities; a Hawaii-Puerto Rico comparison. A. W. J. Demopoulos,* L. A. Crawford, and C. R. Smith Effects of predator presence on nematocyst uptake in the nudibranch Flabellina verrucosa in the southern Gulf of Maine. Kinsey Frick* Attack and avoidance behavior during attempted cannibalism by blue crabs, Callinectes sapidus, in the laboratory. Linda L. Stehlik* and Carol J. Meise When bad things happen to a good reef: multiple disturbances and the recent history of Channel Cay, Belize. W. F. Precht* and R. B. Aronson The coral that dies beneath the waves: species turnover on Caribbean reefs during the last 3,000 years. R. B. Aronson,* W. F. Precht, I. G. Macintyre, T. J. T. Murdoch, and C. M. Wapnick Do more oyster larvae settle in rough neighborhoods?: The influence of small-scale topography on oyster recruitment. M. Lisa Kellogg* and Rita B. J. Peachey Is shell color polymorphism in Littorina obtusata influenced by selective predation by crabs?. Lauralyn Dyer* 15:00-15:30 Coffee break Sliding baselines, stealth predators, and cascading impacts to functional responses in Gulf of Maine benthic communities. Larry G. Harris* Green turtle grazing: effects on structure and productivity in seagrass beds. Kathleen Moran* and Karen Bjorndal Can trophic interactions drive salt marsh succession? Using restoration and invasion research to untangle the trophic web. L. Levin,* T. Talley, P. McMillan, C. Neira, G. Mendoza, S. Moseman, C. Forder, C. Whitcraft, C. Currin, R. Michener Saturday afternoon, 23 March 2002 15:30 Session I (Superior) Recruitment chair: Daniel A. McCarthy Recruitment into disturbed vs undisturbed sediments in the field, ammonium as a cue? Erin Wolfe* and Sarah Woodin 15:45 Effects of seagrass shoot dynamics on distribution and recruitment of epifaunal encrusting bryozoa. N. Kouchi,* M. Nakaoka, and H. Mukai 16:00 Does the relationship between microhabitat and rates of recruitment of young-of-year coral reef fishes explain recruitment variation? Unfortunately, no. Peter F. Sale,* Bret S. Danilowicz, Peter J. Doherty, and David McB. Williams A fugitive keystone species? The important role of an inconspicuous coralline alga in coral recruitment on the Great Barrier Reef. Robert S. Steneck,* Emre Turak, Lindsay Harrington, and Terry Done The role of post-settlement mortality in recruitment of encrusting organisms associated with intertidal and subtidal sabellariid reefs in Boynton Beach, Florida. Daniel A. McCarthy* Population age structure as a record of recruitment history: How large a grain of salt do we need? Jacob P. Kritzer* and Peter F. Sale 16:15 16:30 16:45 Session II (Michigan) Predation and Parasitism chair: Michael L. Judge Predation rates on juvenile oysters: laboratory interactions between exotic and native crabs on prey size selectivity. Michael L. Judge,* and Andrew A. Forbes Oyster predator-prey interactions: roles of different predators, seasonality, spatial variation and deterrents. Kenneth M. Brown,* Gary Peterson, Mike McDonough, and Charles Ramcharan The functional response and behaviours of sea stars and rock crabs preying on juvenile sea scallops. Melisa C. Wong* and Myriam A. Barbeau Session III (Okeechobee 1) Gulf of Mexico and Florida Keys chair: Margaret W. Miller Patterns of herbivory and seaweed abundance in Florida Keys no-take reserves. Margaret W. Miller* Predation by Great Black-backed Gulls (Larus marinus) on crabs in the New England rocky intertidal and shallow subtidal. Julie C. Ellis,* Walter Chen, and Myra Shulman Caging—an ecologist’s friend or foe? Leslie J. Gallagher* and Kenneth L. Heck, Jr. Monitoring changes in the fully protected zones of the Florida Keys National Marine Sanctuary. Brian D. Keller* Interaction strength at the coral reefseagrass interface: has overfishing diminished the importance of seagrass habitat production for coral reef food webs? John F. Valentine* and Kenneth L. Heck, Jr. Predatory-induced variability in the Distribution and composition of composition of decapod crustacean nearshore benthic communities of the assemblages in the subtidal of central Florida Keys. L. M. Rutten,* J. W. Chile. Alvaro T. Palma,* Mauricio Fourqurean, and T. Philippi Arriagada, Cael Orrego, and Anna Astorga Direct evidence for a strong impact of ectoparasites on the demography of a small reef fish. R. J. Petrik-Finley* and G. E. Forrester 18:30-22:00 Banquet Session IV (Okeechobee 2) Community Ecology chair: Rochelle Seitz De-coupling of top-down and bottomup regulation due to hypoxic disturbance in Narragansett Bay, Rhode Island. Andrew H. Altieri* and Jon D. Witman What drives variation in benthic abundance along an environmental gradient—physical, recruitment, topdown, or bottom-up factors?. Rochelle D. Seitz,* Romuald N. Lipcius, and William T. Stockhausen Invertebrate community structure in the Gulf of St. Lawrence: the effect of algal canopies on recruitment and growth. Chantale Bégin,* Ladd E. Johnson, and John H. Himmelman Crab predation as a structuring factor of soft-bottom benthic communities in a subarctic Newfoundland fjord. Pedro A. Quijon* and Paul V. R. Snelgrove Blue crabs, grazers, and epiphytes in seagrass communities: a new marine trophic cascade? Melanie A. Spring,* J. Emmett Duffy, and Romuald N. Lipcius Biodiversity and ecosystem function: the consumer connection. J. E. Duffy,* J. P. Richardson, and K. France Sunday morning, 24 March 2002 8:30 8:45 9:00 Session I (Superior) Growth chair: Lee Ann J. Clements Age determination in high latitude crustaceans: the lipofuscin approach. B. A. Bluhm,* T.C. Shirley, T. Brey, M. Klages Grow fast and avoid predators: why common periwinkles are most abundant in the low intertidal. Rose L. Carlson,* Myra J. Shulman, and Julie C. Ellis Growth rates of juvenile pinfish (Lagodon rhomboides): effects of habitat and predation risk. Stacey L. Harter* and Ken Heck, Jr. 9:15 Measuring estuarine habitat quality: ribbed mussel (Geukensia demissa) growth and survival across tidal creek habitats. Keith Walters* and Loren Coen 9:30 Interannual growth rate variation in the soft-shelled clam, Mya arenaria, and its relation to interannual temperature differences and habitat at Maquoit Bay, Maine. K. R. Meltzer* and W. G. Ambrose, Jr. Environmental influences (food, current and wave motion) on skeletal regeneration in the burrowing brittlestar Ophiophragmus filograneus.. L. A. J. Clements,* B. Bryant, and E. Remily 9:45 7:30-8:30 Continental breakfast Session II (Michigan) Session III (Okeechobee 1) Sea Grass and Salt Marsh Invasive Species chair: Robert W. Virnstein chair: Carol Thornber Fooled by sampling frequency: an Effects of disturbance on invasion example using demise and recovery success in marine communities. Safra of seagrass in Indian River Lagoon, Altman,* Jeffrey Terwin, and Robert FL. R. W. Virnstein,* L. J. Morris, E. Whitlatch W. Carter, and L. Hall Habitat utilization by tidal creek Invasive green porcelain crabs, nekton: seasonal and spatial patterns Petrolisthes armatus, on oyster reefs of associated fauna within intertidal in the South Atlantic Bight: friend or oyster reefs, marsh and mudflats. L. foe? Amanda L. Hollebone* and D. Coen,* and J. A. Stephen Mark E. Hay Habitat characteristics affecting fish Effects of the invasion of the Asian and decapod assemblages of seagrass shore crab Hemigrapsus sanguineus (Zostera marina) beds around the on resident crab populations. N. J. coast of Jersey (English Channel). E. O'Connor* L. Jackson,* M. J. Attrill, S. J. Bossy, M. B. Jones, and A. A. Rowden Changes in the abundance and Green crab (Carcinus maenas) distribution of SAV along Florida’s situation in the southeastern Gulf of springs coast: a comparison based on St. Lawrence, Canada: the Prince aerial photography acquired in 1992 Edward Island situation. Dominique and 1999. Jason A. Hale* and Audet,* Gilles Miron, and Mikio Thomas K. Frazer Moriyasu Benthic communities associated with Zebra mussel invasion reveals a novel Spartina and Phragmites marshes: food web link between zooplankton the relative importance of and benthic suspension feeders. Wai microhabitat versus marsh type. Hing Wong and Jeffrey S. Levinton* Martin Posey,* Troy Alphin, David Meyer, and Michael Johnson Nekton utilization of intertidal marsh Reproductive ecology of the invasive interspersed with micro-rivulets in Japanese kelp Undaria pinnatifida Chesapeake Bay. J. M. Johnson* and along the California coast. Carol D. L. Meyer Thornber,* Brian Kinlan, Michael Graham, Jay Stachowicz 10:00–10:30 Coffee break Session IV (Okeechobee 2) Sunday morning, 24 March 2002 Session II (Michigan) Chemical Ecology chair: Julia Kubanek Chemical ecology of reef and cave sponges of the Bahamas: predator deterrent vs. antimicrobial activity. D. J. Gochfeld* and M. Slattery Session III (Okeechobee 1) Sea Urchin Interactions chair: Amanda V. Leland Crab predation prevents the successful reestablishment of sea urchins in Maine. Amanda V. Leland* and Robert S. Steneck Chemical and molecular characterization of ontogenetic shifts in the chemical defense in Bugula neritina (Bryozoa). Nicole Lopanik,* Niels Lindquist, and Nancy Targett Disturbance and recovery following catastrophic grazing: tudies of a successional chronosequence in a seagrass bed. Bradley J. Peterson,* Craig D. Rose, Leanne M. Rutten, and James W. Fourqurean 11:00 “Where’s my sea whip?” Are defenses in Caribbean gorgonians physical or chemical? William O’Neal* and Joseph R. Pawlik 11:15 More bang for your buck: multiple defensive roles of sponge triterpene glycosides. Julia Kubanek,* Kristen E. Whalen, Sebastian Engel, Sarah R. Kelly, Timothy P. Henkel, William Fenical, and Joseph R. Pawlik 11:30 Localization of ecologically active secondary metabolites in two Caribbean sponges. Kristen Whalen,* Julia Kubanek, and Joseph R. Pawlik Diadema antillarum effects on benthic community structure in the Florida Keys National Marine Sanctuary (FKNMS): preliminary results. Charles Fasano,* Margaret Miller, Alina Szmant, and Nicole Fogarty Experimental evidence that recovery of Diadema antillarum populations on Florida coral reefs is in part predation-limited at the juvenile stage. Alina M. Szmant,* Margaret W. Miller, Tom Capo, Ken Nedimyer, Nicole Fogarty, Kathleen Morrow, and Charles Fasano The influence of Diadema antillarum recovery on the growth and survivorship of scleractinians on a Jamaican coral reef. Joshua A. Idjadi* and Nick Haring 10:30 10:45 Session I (Superior) Larval Ecology chair: John Commito The interaction of spatial variation and post-settlement density dependence in the intertidal porcelain crab, Petrolisthes cinctipes. Megan J. Donahue* Ecosystem engineers alter benthic processes: power law transport of sediment, larvae, and postlarvae in a spatially complex soft-bottom mussel bed. John A. Commito,* Emily A. Celano, Holly J. Celico, and Craig P. Johnson Session IV (Okeechobee 2)