Hanlon Lab – Fisheries, Aquaculture & Conservation

Population structure and reproductive success in several highly valuable squid fisheries (Loligo vulgaris reynaudii in South Africa, Loligo pealeii in the NE United States, Loligo opalescens in California) are being assessed for fishery management and conservation. We also culture species of commercial and biomedical importance in the sophisticated seawater systems of the Marine Resources Center. For example, the toadfish Opsanus beta is used in vestibular research related to human medicine, yet the species is difficult to obtain from nature. Thus, we are performing the first mariculture experiments to culture toadfish through the life cycle to provide the biomedical community with high-quality experimental animals. Such an approach lightens the impact of collecting toadfish from the natural environment..

Publications on fisheries, aquaculture & conservation:

Miserez, A., Weaver, J.C., Pedersen, P.B., Schneeberk, T., Hanlon, R.T., Kisailus, D., & Birkedal, H. 2009. Microstructural and biochemical characterization of the nano-porous sucker rings from Dosidicus gigas. Advanced Materials 20: 1-6.

Buresch, K.C., Gerlach, G., & Hanlon, R.T. 2006. Multiple genetic stocks of longfin squid Loligo pealeii in the NW Atlantic: stocks segregate inshore in summer, but aggregate offshore in winter. Mar Ecol Prog Ser, 310: 263–270.

Foote, K.G., Hanlon, R.T., Iampietro, P.J. & Kvitek, R.G. 2006. Acoustic detection and quantification of benthic egg beds of the squid Loligo opalescens in Monterey Bay, California. Journal of the Acoustical Society of America, 119 (2) : 844-856

Mensinger, A.F., Hanlon, R.T., & Walsh, P.J. 2005. Blood biochemistry of the toadfish Opsanus tau. Journal of Aquatic Animal Health 17: 170-176.

Hanlon, R.T., Kangas, N., & Forsythe, J.W. 2004. Egg capsule deposition and how behavioral interactions influence spawning rate in the squid Loligo opalescens in Monterey Bay, California. Marine Biology 145:923-930.

Forsythe, J.W., Kangas, N., & Hanlon, R.T. 2004. Does the California Market Squid, Loligo opalescens, spawn naturally during the day or at night? A note on the successful use of ROVs to obtain basic fisheries biology data. Fish. Bull. 102: 389-392.

Mensinger, A.F., Price, N.N., Richmond, H.E., Forsythe, J.W., & Hanlon, R.T. 2003. Mariculture of the oyster toadfish: juvenile growth and survival. North American Journal of Aquaculture 65:289-299.

Hall, K.C., & Hanlon, R.T. 2002. Principal features of the mating system of a large spawning aggregation of the giant Australian cuttlefish Sepia apama (Mollusca: Cephalopoda). Mar. Biol. 140(3):533-545.

Hanlon, R.T., Smale, M.J., Sauer, W.H.H. 2002 The mating system of the squid Loligo vulgaris reynaudii (Cephalopoda, Mollusca) off South Africa: Fighting, guarding, sneaking, mating and egg laying behavior. Bull. Mar. Sci. 71 (1) 331-345.

Mensinger, A.F., Stephenson, K.A., Pollema, S.L., Richmond, H.E., Price, N., & Hanlon, R.T. 2001. Mariculture of the toadfish, Opsanus tau. Biol. Bull. 201:282-283.

Hatfield, E.M.C., Hanlon, R.T., Forsythe, J.W., & Grist, E.P.M. 2001. Laboratory testing of a growth hypothesis for juvenile squid Loligo pealeii (Cephalopoda: Loliginidae). Can. J. Fish. Aquat. Sci. 58(5):845-857.

Buresch, K.M., Hanlon, R.T., Maxwell, M.R., & Ring, S. 2001. Microsatellite DNA markers indicate a high frequency of multiple paternity within individual field-collected egg capsules of the squid Loligo pealeii. Mar. Ecol. Prog. Ser. 210: 161-165.

Maxwell, M.R., & Hanlon, R.T. 2000. Female reproductive output in the squid Loligo pealeii: multiple egg clutches and implications for a spawning strategy. Mar. Ecol. Prog. Ser. 199: 159-170.

Tang, K.Q., Price, N.N., O’Neill, M.D., Mensinger, A.F., & Hanlon, R.T. 1999. Temperature effects on first-year growth of cultured oyster toadfish, Opsanus tau. Biol. Bull. 197(2): 247-248.

Hanley, J.S., Shashar, N., Smolowitz, R., Mebane, W., & Hanlon, R.T. 1999. Soft-sided tanks improve long-term health of cultured cuttlefish. Biol. Bull. 197: 237-238.

Hanlon, R.T. 1998. Mating systems and sexual selection in the squid Loligo: How might commercial fishing on spawning squids affect them? Calcofi Rep. 39: 92-100.

Maxwell, M.R., Macy, W.K., Odate, S., & Hanlon, R.T. 1998. Evidence for multiple spawning by squids (Loligo pealei) in captivity. Biol. Bull. 195(2): 225-226.

O’Neill, M.D., Wesp, H.M., Mensinger, A.F., & Hanlon, R.T. 1998. Initial baseline blood chemistry of the oyster toadfish, Opsanus tau. Biol. Bull. 195(2): 228-229.

Hanley, J.S., Shashar, N., Smolowitz, R., Bullis, R.A., Mebane, W.N., Gabr, H.R., & Hanlon, R.T. 1998. Modified laboratory culture techniques for the European cuttlefish Sepia officinalis. Biol. Bull. 195(2): 223-225.