Abstract
In soft-sediment marine and estuarine habitats, population dynamics of resident species are an important aspect of commnity structure and function, yet the population dynamics of many members of these communities remain poorly studied. The population dynamics and secondary production of the infaunal terebellid polychaete Loimia medusa (Savigny) were investigated in a shallow sand habitat of the York River, Chesapeake Bay, Virginia, between June 1989 and December 1990. Monthly sampling throughout 1 yr revealed that individuals were present year-round with maximum densities of 60 ind m-2 and a life span of 1 yr. Abundances were highest from August through September when two cohorts recruited to the population. Mean individual growth was highest in summer, and appeared to be a function of temperature rather than food limitation. Adults were reproductive from May through October and exhibited high fecundity; the number of oocytes segment-1 ranged from 201 to 15840 among worms. Larvae initially appeared approximately 1 mo after gametes were first observed in adult L. medusa, and these larvae appeared to spend less than 1 mo in the plankton. Abundances of larvae in the water column were significantly higher around new moon, suggesting lunar spawning periodicity. New recruits attained sexual maturity within 2 mo of settlement. Secondary production was 3.3 g ash-free dry wt m-2 yr-1 and the P/B (production/biomass) ratio was 3.0. Despite equilibrium species characteristics such as large size, high fecundity, and planktonic larvae, L. medusa exhibits some characteristics typically ascribed to opportunistic species, namely, the capacity for rapid growth and maturation, a short life span and a relatively high P/B ratio. This mixture of life history characteristics emphasizes that there is no simple dichotomy between opportunistic and equilibrium species. We caution that the dominance of large infaunal polychaetes in soft-bottom estuarine and marine environments may not be a useful indicator of undisturbed habitats.
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References
Aldredge AL, King JM (1985) The distance demersal zooplankton migrate above the benthos: implications for predation. Mar Biol 84: 253–260
Aller RC, Yingst JY (1978) Biochemistry of tube-dwellings: a study of the sedentary polychaete Amphitrite ornata (Leidy). J mar Res 36: 201–254
Berry AJ (1986) Semi-lunar and lunar spawning periodicity in some tropical littoral gastropods. J mollusc Stud 52: 144–149
Bhaud M (1988) The two planktonic larval periods of Lanice conchilega (Pallus, 1766) Annelida, Polychaeta, a peculiar example of the irreversibility of evolution. Ophelia 29: 141–152
Christy JH (1986) Timing of larval release by intertidal crabs on an exposed shore. Bull mar Sci 39: 176–191
Dauer DM (1993) Biological criteria, environmental health and estuarine macrobenthic community structure. Mar Pollut Bull 26: 249–257
Dauer DM, Ewing RM, Ranasinghe JA, Rodi AJ Jr (1989) Macrobenthic communities of the lower Chesapeake Bay. Chesapeake Bay Program. Final report to the Virginia Water Control Board. Old Dominion University, Norfolk, Virginia
Dauer DM, Luckenbach MW, Rodi AJ Jr (1993) Abundance biomass comparison (ABC method): effects of an estuarine gradient, anoxic/hypoxic events and contaminated sediments. Mar Biol 116: 507–518
Day JH (1967) A monograph on the Polychaeta of Southern Africa, Part 2. Sedentaria. Grosvenor Press, Portsmouth
Downing JA, Rigler FH (eds) (1984) A manual on methods for the assessment of secondary productivity in fresh waters. Blackwell Scientific Publications, Oxford
Duchêne JC (1976) Recherches sur les fonds meuble circalittoreau au large de Banyuls-sur-Mer. pp. 3e cycle, Universite de Paris VI, Paris
Enders EH (1909) A study of the life-history and habits of Chaetopterus variopedatus, Renier et Claparede. J Morphol 20: 479–531
Grassle JF, Grassle JP (1974) Opportunistic life histories and genetic systems in marine benthic polychaetes. J mar Res 32: 253–284
Grassle JF, Grassle JP (1976) Sibling species in the marine pollution indicator Capitella (Polychaeta). Science NY 192: 567–569
Guillou M, Hily C (1983) Dynamics and biological cycle of a Melinna palmata (Ampharetidae) population during the recolonization of a dredged area in the vicinity of the Harbour of Brest (France). Mar Biol 73: 43–50
Hardege JD, Bartles-Hardege HD, Zeeck E, Grimm FT (1990) Induction of swarming of Nereis succinea. Mar Biol 104: 291–295
Jacoby CA, Greenwood JG (1989) Emergent zooplankton in Moreton Bay, Queensland, Australia: seasonal, lunar, and diel patterns in emergence and distribution with respect to substrata. Mar Ecol Prog Ser 51: 131–154
Kuo AY, Nielson BJ (1987) Hypoxia and salinity in Virginia estuaries. Estuaries 10: 277–283
Lambeck RHD, Valentijn P (1987) Distribution, dynamics and productivity of a colonizing (Polydora quadrilobata) and an established (P. ligni) polydorid polychaete in Lake Grevelingen: an enclosed estuary in the SW Netherlands. Neth J Sea Res 21: 143–158
Levin LA (1984a) Life history and dispersal patterns in a dense infaunal polychaete assemblage, community structure and response to disturbance. Ecology 65: 1185–1200
Levin LA (1984b) Multiple patterns of development in Streblospio benedicti Webster (Spionidae) from three coasts of North America. Biol Bull mar biol Lab, Woods Hole 166: 494–508
Levin LA (1986) Effects of enrichment on reproduction in the opportunistic polychaete Streblospio benedicti (Webster): a mesocosm study. Biol Bull mar biol Lab, Woods Hole 171: 143–160
Llansó RJ, Diaz RJ (1994) Tolerance to low dissolved oxygen by the tubicolous polychaete Loimia medusa. J mar biol Ass UK 74: 143–148
Mayer M (1992) Effects of benthic macrofauna on nitrogen cycling and oxygen consumption of estuarine sediments. PhD Dissertation, University of Maryland, College Park, Maryland
McCall PL (1977) Community patterns and adaptive strategies of the infaunal benthos of Long Island Sound. J mar Res 35: 221–266
McHugh D (1993) A comparative study of reproduction and development in the polychaete family Terebellidae. Biol Bull mar biol Lab, Woods Hole 185: 153–167
Menge BA, Sutherland JP (1987) Community regulation: variation in disturbance, competition and predation in relation to environmental stress and recruitment. Am Nat 130: 730–757
Olive PJW (1977) The life-history and population structure of the polychaetes Nephtys caeca and Nephtys hombergii with special reference to the growth rings in the teeth. J mar biol Ass UK 57: 133–150
Olive PJW (1984) Environmental control of reproduction in polychaeta. In: Fisher A, Pfannenstiel HD (eds) Polychaete reproduction. Gustav Fischer Verlag, Stuttgart, pp 17–38
Olive PJW, Clark RB (1978) Physiology of reproduction. In: Mill PJ (ed) Physiology of annelids. Academic Press, London, pp 271–368
Orth RJ, van Montfrans J (1987) Utilization of seagrass meadow and tidal marsh creek by blue crabs (Callinectes sapidus). I. Seasonal and annual variations in abundance with emphasis on post-settlement juveniles. Mar Ecol Prog Ser 41: 283–294
Pearson TH, Rosenberg R (1978) Macrobenthic succession in relation to organic enrichment and pollution of the marine environment. Oceanogr mar Biol A Rev 16: 229–311
Pekol P, Baxter D (1986) Population dynamics of the Onuphid polychaete Diopatra cuprea (Bosc) along a tidal exposure gradient. Estur cstl Shelf Sci 22: 371–377
Peterson CH (1979) Predation, competitive exclusion, and diversity in the soft-sediment benthic communities of estuaries and lagoons. In: Livingston RJ (ed) Ecological processes in coastal and marine systems. Plenum Press, New York, pp 233–264
Pihl L, Baden SP, Diaz RJ (1991) Effects of periodic hypoxia on distribution of demersal fish and crustaceans. Mar Biol 108: 349–360
Pianka ER (1970) On r and K selection. Am Nat 104: 592–597
Rhoads DC (1974) Organism-sediment relations on the muddy sea floor. Oceanogr mar Biol A Rev 12: 263–300
Rhoads DC, Boyer LF (1982) The effects of marine benthos on physical properties of sediments. A successional perspective. In: McCall PL, Tevesz MJ (eds) Animal-sediment relations: the biogenic alteration of sediments. Plenum Press, New York, pp 3–52
Reise K (1985) Tidal flat ecology. Springer-Verlag, Berlin
Robertson AI (1979) The relationship between annual production: biomass ratios and life spans for marine macrobenthos. Oecologia 38: 193–202
Roessler MA, Rehrer RG (1971) Relation of catches of postlarval pink shrimp in Everglades National Park, Florida, to the commercial catches on the Tortugas Grounds. Bull mar Sci 21: 790–805
Ryan BF, Joiner BL, Ryan RA Jr (eds) (1985) Minitab Handbook, 2nd Edn. PWS-Kent Publishing Co., Boston
Sale PF (1990) Recruitment of marine species: is the bandwagon rolling in the right direction? Trends Ecol Evol 5: 25–27
Schaffner LC (1990) Small-scale organism distributions and patterns of species diversity: evidence for positive interactions in an estuarine benthic community. Mar Ecol Prog Ser 61: 107–117
Schaffner LC (1993) Baltimore Harbor and channels aquatic benthos investigations at the Wolftrap alternate disposal site in lower Chesapeake Bay. Final report for U.S. Army Corps of Engineers, Baltimore, Maryland. Contract #DACW31-87-C-0038. Virginia Institute of Marine Science, Gloucester Point, Virginia
Seitz RD (1991) Population biology of the polychaete Loimia medusa (Savigny) on a tidal flat of the York River, Chesapeake Bay. Masters Thesis, Virginia Institute of Marine Science. School of Marine Science, College of William and Mary, Williamsburg, Virginia
Skrabal TE (1987) System response of a nourished beach in a low-energy estuarine environment, Gloucester Point, Virginia. Masters Thesis, Virginia Institute of Marine Science. School of Marine Science, College of William and Mary, Williamsburg, Virginia
Smith RI (1989) Notes on gamete production in Lanice conchilega (Annelida, Polychaeta, Terebellidae). Invert Reprod Dev 15: 7–12
Sousa WP (1980) Response of a community to disturbance: the importance of successional age and species' life histories. Oecologia 45: 72–81
Thorson G (1946) Reproduction and larval development of Danish marine bottom invertebrates with special reference to the planktonic larvae in the sound (Oresund). Meddr Danm Fisk-og Havunders (Ser Plankton Bind) 4 (1) 1–523
United States Department of Commerce (1990) Tide tables 1990, high and low water predictions, East Coast of North and South America including Greenland. National Oceanic Service, Rockville, Maryland
van Montfrans J, Peery CA, Orth RJ (1990) Daily, monthly and annual settlement patterns by Callinectes sapidus and Neopanope sayi megalopae on artificial collectors deployed in the York River, Virginia: 1985–1988. Bull mar Sci 46: 214–229
Virnstein RW (1977) The importance of predation by crabs and fishes on benthic infauna in Chesapeake Bay. Ecology 58: 1199–1217
Warwick RM (1980) Population dynamics and secondary production of benthos. In: Tenore KR, Coull BC (eds) Marine benthic dynamics. University of South Carolina Press, Columbia, South Carolina, pp 1–24
Warwick RM (1986) A new method for detecting pollution effects on marine macrobenthic communities. Mar Biol 92: 557–562
Warwick RM, Price R (1975) Macrofauna production in an estuarine mud-flat. J mar biol Ass UK 55: 1–18
Waters TF (1977) Secondary production in inland waters. Adv ecol Res 14: 91–164
Waters TF, Crawford GW (1973) Annual production of a stream mayfly population: a comparison of methods. Limnol Oceanogr 18: 186–196
Whittaker RH, Goodman D (1979) Classifying species according to their demographic strategy. I. Population fluctuations and environmental heterogeneity. Am Nat 113: 185–200
Wilkens LA, Wolken JJ (1981) Electroretinograms from Odontosyllis enopla (Polychaeta: Syllidae): initial observations of the visual system of the bioluminescent fireworm of Bermuda. Mar Behav Physiol 8: 55–66
Wilson DP (1928) The post-larval development of Loimia medusa Sav. J mar biol Ass UK 62: 385–401
Woodin SA (1981) Disturbance and community structure in a shallow water sand flat. Ecology 62: 1052–1066
Yokoyama H (1990) Life history and population structure of the spionid polychaete Paraprionospio sp. (form A). J exp mar Biol Ecol 144: 125–143
Zajac RN (1991) Population ecology of Polydora ligni (Polychaeta: Spionidae). I. Seasonal variation in population characteristics and reproductive activity. Mar Ecol Prog Ser 77: 197–206
Zajac RN, Whitlach RB (1988) Population ecology of the polychaete Nephtys incisa in Long Island Sound and the effects of disturbance. Estuaries 11: 117–133
Zajac RN, Whitlach RB (1989) Natural and disturbance-induced demographic variation in an infaunal polychaete, Nephtys incisa. Mar Ecol Prog Ser 57: 89–102
Zar JH (1984) Biostatistical analysis, 2nd Edn. Prentice-Hall, Inc., Englewood Cliffs, New Jersey
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Communicated by J. P. Grassle, New Brunswick
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Seitz, R.D., Schaffner, L.C. Population ecology and secondary production of the polychaete Loimia medusa (Terebellidae). Marine Biology 121, 701–711 (1995). https://doi.org/10.1007/BF00349306
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DOI: https://doi.org/10.1007/BF00349306