9th International Conference on Invertebrate Reproduction & Development  Rhodes University, Grahamstown, South Africa on 1520 July 2001 http://www.rhodes.ac.za/conferences/icird2001/
Convener: Professor Alan Hodgson Dept. Zoology & Entomology Rhodes University Grahamstown, South Africa

Rubilar Panasiuk, C.T., Diaz de Vivar, M.E. & Pastor de Ward, C.T.  Reproductive cycle of Allostichaster inaequalis (Echinodermata: Asteroidea) from the Paragonian coast.

Lima, R.P.N., Barcellos, C.F., Ventura, C.R.R. & Campos-Creasey, L.S.  Reproductive cycle of the sea cucumber Isostichopus badionotus (Echinodermata) from Baia do Ilha Grande, Rio de Janeiro, Brazil.

Moreno, C. & Guisado, C.  Reproductive aspects of Athyonidium chilensis (Semper, 1860) (Echinodermata: Holothuroidea) in the IV region of Chile.

C. Conand, University of Reunion, Reunion, France. Comparison of  reproductive strategies, sexual and asexual, in Stichopus chlotonotus   (Holothuroidea) populations from the Great Barrier reef and Reunion Island. Paper

JF Hamel, College of the Marshall Islands, Marshall Islands. In vivo observation of ovulation and further oocyte maturation in spawning holothurians.

M. Hoshi, Keio University, Japan. Species-specific induction of the acrosome reaction in starfish.

 S.D. Kashenko, Institute of Marine Biology, Russian Academy of Sciences, Russia. Reactions of the sea cucumber Apostichopus japonicus larvae in different development stages after sharp desalination of surface water.

R.P.N.L. Lima, Universidade Santa Ursula, Brazil. Reproductive cycle of the sea cucumber Isostichopus badionotus (Echinodermata) from Baia de Ilha Grande, Rio de Janeiro, Brazil.

 A. Mercier, College of the Marshall Islands, Republic of the Marshall Islands. Coelomic fluid as mediator of spawning induction in tropical holothurians. Poster

C. Moreno, Universidad Catolica del Norte, Chile. Reproductive aspects of Athyonidium chilensis (Semper, 1860) (Echinodermata: Holothuroidea) in the IV region of Chile. Poster

A. Rahman, Bangladesh Fisheries Research Institute, Bangladesh Experimental hybridization and gametic incompatibilities between two genetically divergent species of tropical sea urchins, Echinometra mathaei and E. oblonga . Paper

C.T. Rubilar, Universidad Nacional de la Paragonia San Juan Bosco. Reproductive cycle of Allostichaster innaequalis (Echinodermata: Asteroidea) from the Patagonian coast. Poster

M.A. Sewell, University of Auckland, New Zealand. Utilization of protein and lipid during larval development in two Antarctic echinoderms. Paper

J.S. Pearse, University of California, USA. Photoperiodic regulation of gametogenesis in the antarctic sea star Odonaster validus Koehler: Evidence for a circannual rhythm modulated by light. Paper

M. Whitaker, University of Newcastle, U.K. Nitric oxide and the ryanodine receptor pathway at fertilization in sea urchin eggs. Paper

Fourth North American Echinoderm Conference

Darling Marine Center, University of Maine, Walpole, Maine, August 22-26, 2001.

(Photos courtesy of Andreas Kroh and Brenda Wallace)

THE ORGANIZING COMMITTEE

Emma Creaser, Unity College in Maine

Kevin Eckelbarger, Director, Darling Marine Center

Isidro Bosch, SUNY Geneseo

John M. Lawrence, University of South Florida

ORAL PRESENTATIONS

Dearborn, J.H.  Echinoderms of the Gulf of Maine: occurrence and exploitation. A6

Tyler, P.A., and C.M. Young.  Echinoderms as alien invaders. A6

Pearse, J.  Antarctic sea stars and sea urchins: How they changed major 20th century paradigms in marine biology. A7

Christensen, A.B.  Who do small brittlestars have hemoglobin?  A8

Kennedy, E.J., J.D. Castell, S.M.C. Robinson, G.J. Parsons, T.J. Blair, and E. Gonzalez-Durant. Effect of dietary lipids on fatty acid composition and metabolism in juvenile green sea urchins (Strongylocentrotus droebachiensis). A8

Cobb, J., and J.M. Lawrence. Gonad and gut repletion indices of the co-occurring sea urchins Arbacia punctulata and Lytechinus variegatus on the central Florida gulf shelf. A9

Wallace, B.D., A.W. Cunningham, H.S. Hammer, S.A. Watts, J.M. Lawrence, and A.L. Lawrence. The effect of protein on gonad development in small sea urchins (Lytechinus variegatus). A9

Scheibling, R., and T. Gibson. Suspension feeding in the ophiuroid Ophiocoma scolopendrina: optimal foraging or just a lot of arm waving. A10

Pearce, C.M. Effect of urchin size and diet on gonad yield and quality in the green sea urchin (Strongylocentrotus droebachiensis). A10

Robinson, S.M.C., and L. Peters. The efficiency of prepared diets for growing the green sea urchin (Strongylocentrotus droebachiensis). A11

Vadas Sr., R.L., B.D. Smith, B. Beal, and T. Dowling. Sympatric growth morphs and size bimodality in Strongylocentrotus droebachiensis. A11

Ellers, O. Dimensional similarity and the evolution and growth of shape in sea urchins. A12

Shick, J.M., and W.C. Dunlap. Uptake, accumulation, bioconversion, and physiological functions of mycosporine-like amino acids (MAAs) in tropical holothuroids. A12

Pinkard, D.R., G.L. Eckert, D.C. Reed, and S.C. Schroeter. Seasonal variation in density and body composition of the commercially important sea cucumber, Parastichopus parvimensis.  A13

Shpigel, M., S.C. McBride, and I. Lupatsch. Propagation of the European sea urchin (Paracentrotus lividus) in an environmentally friendly, land based facility. A13

Spain, D.D. Peristaltic locomotion and habitat in holothuroids. A14

Pomory, C.M. Photoperiod effects on gonad production in the red sea urchin Strongylocentrotus franciscanus. A14

Seward, L.C.N., R.L. Vadas, B.F. Beal, T. Dowling, and D.W. Townsend. Patterns of spawning of the green sea urchin, Strongylocentrotus droebachiensis, in Central Maine over a three-year period. A14

Adams, N.L., and K.R. Foltz. A molecular approach to understanding UV-induced mitotic delay in sea urchin embryos. A15

Allen, J.D. Testing the costs of small egg size in Echinoderms. A15

Heyland, A., A. Reitzel, and J. Hodin. Thyroxine induces facultative feeding in an obligatorily feeding sand dollar larva. A16

Bosch, I., M. Komatsu, C. Murakami, and D. Krakowski. Spawning and development of the sea star Psilaster charcoti during the springtime depletion of ozone in Antarctica. A16

Meidel, S., and P. Yund. Fertilization dynamics in a temperate sea urchin, Strongylocentrotus droebachiensis. A17

Minsuk, S.B., and R.A. Raff. Inductive signals in rudiment development in the direct-developing  sea urchin Heliocidaris erythrogramma. A17

Reitzel, A., and A. Heyland. Morphological plasticity in echinoplutei with different degrees of maternal investment. A18

Schiopu, D., and S. George. Population differences in reproductive output and larval development for the sand dollar Mellita isometra. A18

Harris, L.G., and P.A. Madigan. Juvenile growth in the green sea urchin: addressing a major bottleneck to successful aquaculture. A18

Cameron, C. Molecular phylogenetic evidence suggests that the ancestral echinoderm may have closely resembled a mobile, worm-like enteropneust with filter feeding gill slits. A19

Fontanella, F., and T.S. Hopkins. Preliminary phylogeny of seven morphological variants of Echinaster (Othilia) from the Gulf of Mexico and Caribbean. A19

Kroh, A. Taxonomy and evolution of the family Scutellidae (Echinoidea: Clypeasteroida) during the Oligo-Miocene. A20

Mah, C., and D.B. Blake. Phylogenetic analysis of the Goniasteridae (Asteroidea): Calliaster and kin-a first step. A20

Mooi, R., A. Devitt, and M. Wittman. The small, the large, and the weird: Phylogenetics of the laganine sand dollars. A21

Pizer, M., G. Wray, and J. Balhoff. Echinoderm origins: A review of theories and predictions. A21

Wilson, M.M., and R.L. Turner. Genetic diversity in the brooding sea cucumber Synaptula hydriformis using randomly amplified polymorphic DNA (RAPD) analysis: implication for method of fertilization. A22

Mooi, R., and M. Telford. Advancing history: Phylogenetics of tooth promotion in echinoid lanterns. A22

Pawson, D.L. Mirror-image abnormalities (situs inversus viscerum) in echinoderms. A23

Stepanov, Vadim G., V.E. Gaidaev, and V.S. Levin. Quantitative computer methods for the analysis of the spicular shape in the holothurian Cucumaria spp. A23

De Moor, S., J.H. Waite, M. Jangoux, and P. Flammang.  Adhesive proteins from the Cuverian tubules of the holothuroid Holothuria forskali. A23

Springer, E.A., and R.L. Turner. Population biology of the fissiparous brittlestar Ophiocomella ophiactoides (H.L. Clark) in sponge and algal habitats. A24

Talbot, T.D., and J.M. Lawrence. The effect of salinity on respiration, excretion, regeneration, and production in the brittlestar Ophiophragmus filograneus. A24

McAlister, J.S., and S.E. Stancyk. Effects of variable water motion on regeneration of Hemipholis elongata (Say, 1825) (Echinodermata: Ophiuroidea). A25

Stickle, W.B. On the relationship between the parasitic ciliate Orchitophrya stellarum and its asteriid hosts. A25

Turner, R.L., and B.D. Graham. New records of echinoderms from the Gulf of Mexico. A26

POSTERS

Hodin, J., and A. Heyland. Thyroid hormones, phenotypic plasticity and life history evolution in three classes of echinoderms. A27

Eckert, G.L., D.R. Pinkard, D.C. Reed, and S.C. Schroeter. Larval development, settlement, and juvenile growth of the sea cucumber, Parastichopus parvimensis. A27

Santos, R., D. Haesaerts, M. Jangoux, and P. Flammang. Comparative histological and immunohistochemical study of asteroid tube foot adhesion. A28

Fontanella, F.M., and T.S. Hopkins. New insights into the functional role of the glassy tubercules and inter-tubercular pores in seastar Echinaster (Othilia). A28

Hopkins, T.S., F.M. Fontanella, and R. Ventura. Morphological variation in three South Atlantic sea stars of the subgenus Othilia (Genus Echinaster; Family Echinasteridae; Order Spinulosida). A29

Hotchkiss, F.H.C., and P.H. von Bitter. Diminutive ophiuroids of modern aspect from the Lower Carboniferous of Nova Scotia, Canada. A29

Leland, A. Reestablishing the green sea urchin in overharvested areas. A30

Lawrence, J.M., S.C. McBride, L.R. Plank, and M. Sphigel. Tolerance to ammonia of the sea urchins Strongylocentrotus franciscanus, Arbacia punctulata, Lytechinus variegatus, and Paracentrotus lividus. A30

Harshany, D.J., J.M. Lawrence, and S.C. Edwards. Production in the starfish Luidia clathrata measured directly and calculated from the specific dynamic action. A31

Lawrence, J.M., and C.M. Pomory. Allometric growth of the asymmetrical pyramids of the Aristotle's lantern of the sand dollars Mellita tenuis and Dendraster excentricus. A31

Moody, M., and C.W. Walker. Photoperiod, "Eyes" and gametogenesis in the green sea urchin. A31

Johnson, K.B., and D.L. Pawson. Weird science: a spatangoid larva (Class Echinoidea, Order Spatangoida) metamorphoses into a "typical" regular echinoid (Order Echinoida). A32

Pawson, D.L., and A.M. Kerr. Chitin in echinoderms? Tentacle sheaths in the deep-sea holothurian Ceraplectana trachyderma (Holothuroidea: Molpadiida). A32

Pawson, D.L., and R.J. Mooi. How many species of five-holed sand dollars live in the Western Atlantic? A33

Thandar, A.S., N. Seoraj, and G.K. Moodley. Evidence of feeding and digestion in eviscerated specimens of an aspidochirotid holothroid. A33

Vavrinec, J., and D. McNaught. Alternate stable states and the management of the green sea urchin Strongylocentrotus droebachiensis in Maine. A33

Worrell, R.L., S.A. Watts, and B. Gower. Glucose levels in the coelomic fluid vary with diet in the sea urchin Lytechinus variegatus. A34

Hawk, B., and S.B. George. Population structure of the sand dollar Mellita isometra: Occurrence of the commensal crab Dissodactylus mellitae. A34