Meeting Abstract 31.3 Monday, Jan. 5 Energetics, immunology and corticosterone response of four subspecies of stonechats in winter VERSTEEGH, MA*; HELM, B; GOYMANN, W; TIELEMAN, BI; University of Groningen; Max Planck Institute for Ornithology; Max Planck Institute for Ornithology; University of Groningen m.a.versteegh@rug.nl The balance between current and future reproduction is one of the foundations of life […]
sessions: Session 31
Towards a metamorphic and settlement signaling network in echinoids
Meeting Abstract 31.4 Tuesday, Jan. 5 Towards a metamorphic and settlement signaling network in echinoids HODIN, J.*; BISHOP, C.D.; HEYLAND, A.; Hopkins Marine Station, Stanford University; Department of Biology, Dalhousie University; Department of Biology, University of Guelph seastar@stanford.edu Metamorphosis encompasses both a morphogenetic and behavioral life history transition, and is generally irreversible. As such, the temporal and […]
Strongylocentrotus sea urchin eggs choose conspecific over heterospecific fertilization
Meeting Abstract 31.8 Tuesday, Jan. 5 Strongylocentrotus sea urchin eggs choose conspecific over heterospecific fertilization BIERMANN, C.H.*; WHITE, T.A.; PALUMBI, S.R.; Friday Harbor Labs and Portland State Univ.; Univ. of Washington, Seattle; Hopkins Marine Lab, Stanford biermann@pdx.edu When given no choice, eggs of the green sea urchin Strongylocentrotus droebachiensis can be fertilized with sperm from the related, […]
Settlement cues and their effect on gene flow in sibling species of rocky intertidal gastropods, Littorina plena and Littorina scutulata
Meeting Abstract 31.2 Tuesday, Jan. 5 Settlement cues and their effect on gene flow in sibling species of rocky intertidal gastropods, Littorina plena and Littorina scutulata MALISKA, M.E.*; SWALLA, B.J.; Friday Harbor Laboratories and University of Washington; Friday Harbor Laboratories and University of Washington mem24@u.washington.edu Periwinkle snails Littorina plena and Littorina scutulata (Caenogastropoda: Littorinidae) are an excellent […]
Reproductive character displacement in egg-jelly carbohydrates reinforces mating barriers in two broadcast-spawning marine invertebrates
Meeting Abstract 31.6 Tuesday, Jan. 5 Reproductive character displacement in egg-jelly carbohydrates reinforces mating barriers in two broadcast-spawning marine invertebrates MARKS, J.A.**; BIERMANN, C.H.; Univ. of Oslo, Norway; Portland State Univ. Jessica.Marks@bio.uib.no In marine broadcast-spawning organisms, geographic divergence in gamete compatibility may reflect the first step toward speciation, yet little is known about patterns of pre-zygotic isolation […]
Natural hybridization in echinoderms a case study from the sea urchin genus Pseudoboletia
Meeting Abstract 31.7 Tuesday, Jan. 5 Natural hybridization in echinoderms: a case study from the sea urchin genus Pseudoboletia ZIGLER, Kirk S*; BYRNE, Maria; RAFF, Rudolf A; RAFF, Elizabeth C; LESSIOS, H A; Sewanee: The University of the South; University of Sydney; Indiana University ; Indiana University; Smithsonian Tropical Research Institute kzigler@sewanee.edu Confirmed cases of natural hybridization […]
Formation and fate of the musculatue in larvae of the nudibranch Phestilla sibogae
Meeting Abstract 31.5 Tuesday, Jan. 5 Formation and fate of the musculatue in larvae of the nudibranch Phestilla sibogae HADFIELD, M. G. *; CROLL, R. P.; University of Hawaii; Dalhousie University hadfield@hawaii.edu Developmental programs for many marine invertebrates include the assembly of muscular systems appropriate to functions of swimming and feeding in pelagic larvae. At the end […]
Differences in the timing of development of feeding structures and the acquisition of feeding ability between small-egg and large-egg larvae of Streblospio benedicti (Annelida, Spionidae)
Meeting Abstract 31.10 Tuesday, Jan. 5 Differences in the timing of development of feeding structures and the acquisition of feeding ability between small-egg and large-egg larvae of Streblospio benedicti (Annelida, Spionidae) PERNET, B.*; MCHUGH, D.; California State University, Long Beach; Colgate University bpernet@csulb.edu In marine invertebrates with planktonic larval development, evolutionary changes in per-offspring maternal investment are […]
Cone snail metamorphosis differentiation of the venom apparatus from the foregut of the planktotrophic larva
Meeting Abstract 31.3 Tuesday, Jan. 5 Cone snail metamorphosis: differentiation of the venom apparatus from the foregut of the planktotrophic larva. PAGE, L.R.; University of Victoria lpage@uvic.ca Highly derived adult gastropods with complex life cycles, such as members of the genus Conus, have circumvented potential constraints of larval functional needs to achieve post-metamorphic specialization of the adult […]
Assaying echinoid eggs for evolutionary associations among egg size, egg composition, and egg energy
Meeting Abstract 31.9 Tuesday, Jan. 5 Assaying echinoid eggs for evolutionary associations among egg size, egg composition, and egg energy MCALISTER, J/S*; MORAN, A/L; Clemson University; Clemson University jmcalis@clemson.edu Marine invertebrates with feeding larvae use maternally-derived biochemical constituents (carbohydrate, protein, and lipid) in the egg to fuel larval metabolism and to construct the feeding larva. How then […]
