Corrington (1927) defined L. dubia as a scavenger, feeding on easily procured plant and animal tissue and detritus. In seagrass beds, the spider crab consumes macroalgae as a portion of its diet, including Gracilaria tikvahiae and other algae of the genera Ulva, Hypnea, Chondria and Padina (Stachowicz & Hay 1999). When in association with various species of medusae, L. dubia has been found to feed on the mesoglea, the transparent body tissue of the jelly (Jachowski 1963, Phillips et al. 1969, Tunberg & Reed 2004). Predators: As juveniles, spider crabs are commonly preyed upon by larger fishes including: adult pinfish, Lagodon rhomboides; juvenile gag grouper, Mycteroperca microlepis; and oyster toadfish, Opsanus tau (Stachowicz & Hay 1999). To avoid predation, L. dubia decorates its shell with unpalatable algal and invertebrate species, including the brown alga, Dictyota menstrualis (Stachowicz & Hay 1999), and the sun sponge, Hymeniacidon heliophila (Stachowicz & Hay 2000). As the crab grows larger than the mouth gape of its fish predators, its predation risk lowers and it ceases this decorative behavior (Stachowicz & Hay 1999). Parasites: Several marine species can become infected with parasites in the form of worms, copepods, barnacles and other organisms. One such relationship has been documented between L. dubia and the marine fungus, Lagenidium callinectes (Bland & Amerson 1974). The fungus infects eggs of L. dubia; the Atlantic mud crab, Panopeus herbstii; and the blue crab, Callinectes sapidus (Bland & Amerson 1974), as well as other commonly aquacultured species (eg. Ramasamy et al. 2006).
- Abele, LG & W Kim. 1986. An illustrated guide to the marine decapod crustaceans of Florida, Part 2. Florida State Univ. Tallahassee, FL, USA. 760 pp.
- Ruppert, EE, Fox, RS & RD Barnes. 2004. Invertebrate zoology: A functional evolutionary approach. Brooks/Cole. Belmont, CA, USA. 963 pp.
- Bland, CE & HV Amerson. 1974. Occurrence and distribution in North Carolina waters of Lagenidium callinectes Couch, a fungal parasite of blue crab ova. Chesapeake Sci. 15: 232-235.
- Corrington, JD. 1927. Commensal association of a spider crab and a medusa. Biol. Bull. 53: 346-350.
- Dragovich, AJ & JA Kelly, Jr. 1964. Ecological observations of macro-invertebrates in Tampa Bay, Florida. Bull. Mar. Sci. 14: 74-102.
- Enzenross, R & L Enzenross. 2000. Non-Mediterranean crustaceans in Tunisian waters (Decapoda, Macrura and Brachyura). Crustaceana 73: 187-195.
- Frick, MG, Williams, KL, Markesteyn, EJ, Pfaller, JB & RE Frick. 2004. New records and observations of epibionts from loggerhead sea turtles. Southeast. Nat. 3: 613-620.
- Jachowski, R. 1963. Observations on the moon jelly, Aurelia aurita, and the spider crab, Libinia dubia. Chesapeake Sci. 4: 195.
- O'Brien, SB, Landau, M & KW Able. 1995. Seasonal and spatial distribution of two species of spider crab in Great Bay, New Jersey. Am. Zool. 35: 67A.
- O'Brien, SB, Landau, M & KW Able. 1999. Sex ratios of two species of spider crabs, Libinia dubia H. Milne Edwards, 1834 and L. emarginata Leach, 1815, in the area of Great Bay, New Jersey. Crustaceana 72: 187-192.
- Phillips, PJ, Burke, WD & EJ Keener. 1969. Observations on the trophic significance of jellyfishes in Mississippi Sound with quantitative data on the associative behavior of small fishes and medusa. Am. Fish. Soc. 98: 703-712.
- Ramasamy, P, Rajan, PR, Jayakumar, R, Rani, S & GP Brennan. 2006. Lagenidium callinectes (Couch, 1942) infection and its control in cultured larval Indian tiger prawn, Penaeus monodon Fabricius. J. Fish Diseases 19: 75-82.
- Ruppert, EE & RS Fox. 1988. Seashore animals of the Southeast: A guide to common shallow-water invertebrates of the southeastern Atlantic coast. Univ. South Carolina Press. Columbia, SC, USA. 429 pp.
- Sandifer, PA & WA Van Engel. 1971. Larval development of the spider crab, Libinia dubia H. Milne Edwards (Brachyura, Majidae, Pisinae), reared in the laboratory. Chesapeake Sci. 12: 18-25.
- Stachowicz, JJ & M Hay. 1999. Reduced mobility is associated with compensatory feeding and increased diet breadth of marine crabs. Mar. Ecol. Prog. Ser. 188: 169-178.
- Stachowicz, JJ & M Hay. 1999. Reduced predation through chemically mediated camouflage: indirect effects of plant defenses on herbivores. Ecology 80: 495-509.
- Stachowicz, JJ & M Hay. 2000. Geographic variation in camouflage specialization by a decorator crab. Am. Nat. 156: 59-71.
- Tabb, DC & RB Manning. 1961. A checklist of the flora and fauna of northern Florida Bay and adjacent brackish waters of the Florida mainland collected during the period July, 1957 through September, 1960. Bull. Mar. Sci. 11: 552-649.
- Tunberg, BG & SA Reed. 2004. Mass occurrence of the jellyfish Stomolophus meleagris and an associated spider crab Libinia dubia, eastern Florida. FL Scientist 67: 93-104.
- Voss, GL. 1980. Seashore life of Florida and the Caribbean. Dover Publications. Mineola, NY, USA. 199 pp.
- Williams, AB. 1984. Shrimps, lobsters, and crabs of the Atlantic coast of the eastern United States, Maine to Florida. Smithsonian Inst. Press. Washington, D.C., USA. 550 pp.
No one has provided updates yet.