California Department of Fish and Wildlife

Marine Invertebrate Survey and Assessment Project

The Marine Invertebrate Survey and Assessment Project focuses on addressing processes that impact marine populations and communities, and then applies these findings to fishery management and marine conservation issues. Staff work primarily with benthic (sea floor) marine invertebrates inhabiting nearshore rocky reef ecosystems, or sand, mud, or soft sediment environments. Staff use field, experimental and modeling approaches to understand population and community-level dynamics. Current research investigates:

Rocky Reef Community at Fort Ross
Photograph Credit: R. Tavernetti

  • Status and health of the red abalone resource in northern California
  • Modeling approaches to describe growth, survival and reproduction in red abalone
  • Indirect effects of fishing ecosystem engineers
  • Harmful algal bloom interactions with abalone and sea urchin
  • The role of marine reserves as control areas for fishing impacts
  • Sensitivity analyses of matrix population models for fished and endangered species
  • Oceanographic conditions that influence larval abundance of the Dungeness crab
  • Fishing pressure effects on clam communities
  • Video: Abalone Survey Dive Methodology

Contact Information

Laura Rogers-Bennett
PO Box 247, Bodega Bay, CA 94923
(707) 875-2035

List of Publications

Rogers-Bennett, L., Hubbard, K. E. and Juhasz, C. I. 2013. Dramatic declines in red abalone populations after opening a "de facto" marine reserve to fishing: Testing temporal reserves. Biol. Cons. 157:423-431. Read

Koslow, J.A., Rogers-Bennett, L., D.J. Neilson. 2012. A time series of California spiny lobster (Panulirus interruptus) phyllosoma from 1951 to 2008 links abundance to warm oceanographic conditions in Southern California. CalCOFI Reports 53:132-139. Read

Button, C. A. and L. Rogers-Bennett 2011. Vital rates of pink abalone (Haliotis corrugata) estimated from mark-recapture data to inform recovery. Mar. Ecol. Prog. Ser. 431:151-161. Read

Rogers-Bennett, L., Dondanville, R.F., Moore, J.D. and L.I. Vilchis 2010. Response of red abalone reproduction to warm water, starvation and disease stressors: Implications of ocean warming. J. Shellfish Res. 29:599-611. Read

White, J.W. and Rogers-Bennett, L. 2010. Incorporating physical oceanographic proxies of recruitment into population models to improve fishery and Marine Protected Area management. CalCOFI 51:128-149. Read

Jiao, Y., L. Rogers-Bennett, I. Taniguchi, J. Butler and P. Crone 2010. Incorporating temporal variation in the individual growth of red abalone (Haliotis rufescens) using hierarchical Bayesian growth models. Can. J. Fish. Aquat. Sci. 67:730-742. Read

McClatchie, S., Goericke, R., Schwing, F.B., Bograd, S.J., Peterson, W.J., Emmett, R., Charter, R., Watson, W., Lo, N., Hill, K., Collins, C., Kahru, M., Mitchell, B.G., Koslow, J.A., Gomez_Valdes, J., Lavaniegos, B.E., Gaxiola-Castro, G., Gottschalk, J., L’Heureux, M., Xue, Y., Manzano-Sarabia, M., Bjorkstedt, E., Ralston, S., Field, J., Rogers-Bennett, L., Munger, L., Campbell., G., Merkins, K., Camacho, D., Havron, A., Douglas, A., and J. Hildebrand 2009. The State of the California Current, Spring 2008-2009: Cold conditions drive regional differences. CalCOFI 50: 43-68.

Rogers-Bennett, L. and D.W. Rogers 2008. Modeling dispersal of cloning echinoderm larvae with a Gaussian distribution: Forever young? CalCOFI Reports 49:232-240. Read

Leaf, R.T., Rogers-Bennett, L., Y. Jiao 2008. Exploring the use of a size-based egg-per-recruit model for the red abalone fishery in California. North American Journal of Fisheries Management. 28:1638-1647. Read

Bracken, M.E.S., B.E. Bracken and L. Rogers-Bennett 2007. Species diversity and foundation species: Potential indicators of fisheries yields and marine ecosystem functioning. CalCOFI Reports 48:82-89. Read

Rogers-Bennett, L. 2007. Is climate change contributing to range reductions and localized extinctions in northern, (Haliotis kamtschatkana), and flat, (Haliotis walallensis), abalones? Bull. Mar. Sci. 81:283-296. Read

Rogers-Bennett, L., Rogers, D.W. and S. Schultz. 2007. Modeling growth and mortality of red abalone (Haliotis rufescens) in northern California. J. Shellfish Res. 26:719-727. Read

Rogers-Bennett, L. 2007. The ecology of Strongylocentrotus franciscanus and Strongylocentrotus purpuratus. Book Chapter In: Lawrence, J. (ed) Edible Sea Urchins: Biology and Ecology. Elsevier Amsterdam Chapter 19:393-425.

Leaf, R.T., Rogers-Bennett, L. and P.L. Haaker. 2007. Spatial, temporal, and size-specific variation in mortality estimates of red abalone, Haliotis rufescens, from mark-recapture data in California. Fisheries Research: 83:341-350. Read

Marko, P.B., Rogers-Bennett, L. and A.B. Dennis. 2007. MtDNA population structure and gene flow in lingcod (Ophiodon elongatus): limited connectivity despite long-lived pelagic larvae. Marine Biology 150:1301-1311.

Rogers-Bennett, L. and A.S. Melvin. 2007. Size differences in wild and farmed red abalone: Developing enforcement tools to combat illegal commercialization. California Fish and Game 93:77-85.

Rogers-Bennett, L. and D.W. Rogers. 2006. A semi-empirical growth estimation method for matrix models of endangered species. Ecological Modelling 195:237-246. Read

Rogers-Bennett, L. and R.T. Leaf. 2006. Elasticity analyses of size-based red and white abalone matrix models: Management and conservation. Ecological Applications 16:213-224. Read

Harley, C.D.G. and L. Rogers-Bennett. 2004. The potential synergistic effects of climate change and fishing pressure on exploited invertebrates on rocky intertidal shores. CalCOFI Reports 45:98-110.

Rogers-Bennett, L., Allen, B.L. and G.E. Davis. 2004. Measuring abalone (Haliotis spp.) recruitment in California to examine recruitment overfishing and recovery criteria. J. Shellfish Res. 23:1201-1207.

Bennett, W.A., K. Roinestad, L. Rogers-Bennett, L. Kaufman and B. Heneman 2004. Inverse regional responses to climate change and fishing intensity by the recreational rockfish fishery in California. Can. J. Fish. Aquat. Sci. 61:2499-2510.

Rogers-Bennett, L., Dondanville, R.F. and J.V. Kashiwada. 2004. Size specific fecundity of red abalone (Haliotis rufescens): Evidence for reproductive senescence? J. Shellfish Res. 23:553-560.

Rogers-Bennett, L., Rogers, D.W. Bennett, W.A. and T.A. Ebert 2003. Modeling red sea urchin growth using six growth models. Fishery Bulletin 101:614-626. Read

Rogers-Bennett, L., Haaker, P.A., Huff, T.O., P.K. Dayton 2002. Estimating baseline abundances of abalone in California for restoration. CalCOFI Reports 43:97-111.

Rogers-Bennett, L., P.L. Haaker, K.A. Karpov and D. J. Kushner. 2002. Using spatially explicit data to evaluate Marine Protected Areas for abalone in southern California. Conservation Biology 16:1308-1317.

Rogers-Bennett, L. (Ed.) 2002. Review of some California fisheries for 2001: Market squid, sea urchin, Dungeness crab, lobster, prawn, abalone, groundfishes, swordfish and sharks, Coastal Pelagic finfishes, ocean salmon, nearshore live-fishes, Pacific herring, white seabass, and kelp. CalCOFI Reports 43:13-30.

Rogers-Bennett, L. (Ed.). 2001. Review of some California fisheries for 2000: Market squid, sea urchin, prawn, white abalone, groundfishes, ocean salmon, Pacific sardine, Pacific herring, Pacific mackerel, nearshore live-fishes, halibut, yellowfin tuna, white seabass, and kelp. CalCOFI Reports 42:12-28.

Karpov, K., Tegner, M.J., Rogers-Bennett, L., Kalvass, P., Taniguchi, I. 2001. Interactions among red abalones and sea urchins in fished and reserve sites in northern California: implications of competition to management. J. Shellfish Res. 20:743-753.

Rogers-Bennett, L. 2001. Evaluating stocking as an enhancement strategy for red sea urchins, Strongylocentrotus franciscanus: depth-specific patterns in recoveries. Echinoderms: 2000 Tenth International Echinoderm Conf. (Ed.). M. Barker. A.A. Balkema, Rotterdam, Neth. 527-531.

Rogers-Bennett, L. and J.S. Pearse. 2001. Indirect benefits of marine protected areas for juvenile abalone. Conservation Biology 15:642-647. Read

Leet, W.S., C.M. Dewees, R. Klingbeil, and E.J. Larson (eds.). 2000. California living marine resources: a status report. Co-author on Chapters: Abalones, Red Sea Urchins, Sea Cucumbers, Wavy Turban Snails. CA Dept. of Fish and Game. UC Agriculture and Nat Res. Publ. SG01-11.

Rogers-Bennett, L. (Ed.). 2000. Review of some California fisheries for 1999: Market squid, dungeness crab, sea urchin, prawn, abalone, groundfish, swordfish and shark, ocean salmon, nearshore finfish, pacific sardine, Pacific herring, Pacific mackerel, reduction, white seabass, and recreational. CalCOFI Reports 41:8-25.

Karpov, K., Haaker, P., Taniguchi, I., L. Rogers-Bennett. 2000. Serial depletion and the collapse of the California abalone (Haliotis spp.) fishery. Canadian Special Publication Fisheries and Aquatic Sciences 130:11-24.

Rogers-Bennett, L. and J.S. Pearse. 1998. Experimental seeding of hatchery-reared juvenile red abalone Haliotis rufescens in northern California. J. Shellfish Res. 17:877-880.

Rogers-Bennett, L., Fastenau, H.C. and C.M. Dewees. 1998. Recovery of red sea urchins beds following experimental harvest. Echinoderms: San Francisco. Proceeds. 9th Intern. Echinoderm Conf. (Eds). R. Mooi and M. Telford. A.A. Balkema, Rotterdam, Neth. 805-809.

Rogers-Bennett, L. 1997. Marine Protected Areas and the Red Urchin Fishery. California and the World Ocean '97, Proceeds of the Conf. Amer. Soc. Civil Engineers, California Sea Grant Publ. 412-423.

Rogers-Bennett, L., Bennett, W.A., Fastenau, H.C., and C.M. Dewees 1995. Spatial variation in red sea urchin reproduction and morphology: implications for harvest refugia. Ecological Applications 5:1171-1180.