Abstract
The use of the Tejo estuary, Portugal, salt marsh creeks by nekton was examined based on sampling surveys with a fyke net from September 1998 until August 2001. From the 20 taxa (14 fish species, 5 decapod crustacean species, and 1 cephalopod species) identified in the studied creeks, 16 were regularly caught throughout the sampling period. The shrimpPalaemonetes varians was the most numerically abundant species in the creeks, while the biomass was dominated by the mulletLiza ramada. The nekton assemblage was mainly represented by marine-estuarine opportunist species, comprising 85% of the total. A high seasonality was detected on the species abundance patterns: the most abundant species (P. varians, Crangon crangon, L. ramada, Pomatoschistus microps, Syngnathus sp., andAnguilla anguilla) occurred throughout the sampling period,Sardina pilchardus, Dicentrarchus, labrax, andAtherina boyeri were particularly abundant in spring and summer, andEngraulis encrasicholus, Liza aurata, Gambusia holbrooki, Palaemon longirostris, andPalaemon serratus were most abundant in autumn and winter.L. ramada occurred in the tidal creeks in high numbers during neap tides, while the majority of the remaining taxa were most abundant during spring tides, suggesting a differential pattern of habitat use occording to species.
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Literature Cited
Almeida, P. R., F. Moreira, J. L. Costa, C. A. Assis, andM. J. Costa. 1993. The feeding strategies ofLiza ramada (Risso, 1826) in the fresh and brackish water in the River Tejo, Portugal.Journal of Fish Biology 42:95–107.
Baltz, D. M., J. W. Fleeger, C. F. Rakocinski, andJ. N. McCall. 1998. Food, density, and microhabitat: Factors affecting growth and recruitment potential of juvenile saltmarsh fishes.Environmental Biology of Fishes 53:89–103.
Beeftink, W. G. 1977. The coastal salt marshes of western and northern Europe: An ecological and phytosociological approach, p. 93–121.In V. J. Chapman (ed.), Wet Coastal Ecosystems, Elsevier, Amsterdam, The Netherlands.
Boesch, D. E. andR. E. Turner. 1984. Dependence of fishery species on salt marshes: The role of food and refuge.Estuaries 7:460–468.
Bozeman, Jr.,E. L. andJ. M. Dean. 1980. The abundance of estuarine larval and juvenile fish in a South Carolina intertidal creek.Éstuaries 3:89–97.
Cabral, H. N. 1998. Utilização do estuário do Tejo como área de viveiro pelos linguados,Solea solea (Linnaeus, 1758) eS. senegalensis Kaup, 1858, e robalo,Dicentrarchus labrax (Linnaeus, 1758). Ph.D. Dissertation, Faculdade de Ciências de Lisboa, Liiboa.
Cain, R. L. andJ. M. Dean. 1976. Annual occurrence, abundance and diversity of fish in a South Carolina intertidal creek.Marine Biology 36:369–379.
Catarino, F., J. D. Tenhunen, V. Brotas, andO. Liange. 1985. Application of CO2-porometer methods to assessment of components of photosynthetic production in estuarine ecosystems.Marine Biology 89:37–43.
Cattrijsse, A., E. S. Makwaia, H. R. Dankwa, O. Hamerlynck, andM. A. Hemminga. 1994. Nekton communities of an intertidal creek of a European estuarine brackish marsh.Marine Ecology Progress Series 109:195–208.
Costa, M. J. 1982. Contribution à l’étude de l’écologie des poissons de l’estuaire du Tage (Portugal). Ph.D. Dissertation. Université Paris VII, Paris.
Costa, M. J. andA. Bruxelas. 1989. The structure of fish communities in the Tejo estuary (Portugal) and its role as a nursery for commercial fish species.Scientia Marina 53:561–566.
Costa, M. J., J. L. Costa, P. R. Almeida, andC. A. Assis. 1994. Do eel grass beds and salt marsh borders act as preferential nurseries and spawning grounds for fish?—An example of the Mira estuary in Portugal.Ecological Engineering 3:187–195.
Drake, P. andA. M. Arias. 1991. Composition and seasonal flutuations of the ichthyoplankton community in a shallow tidal channel of Cadiz Bay (S. W. Spain).Journal of Fish Biology 39: 245–263.
Drake, P., A. M. Arias, andM. C. Sarasquete. 1987. Reproduction deFundulus heteroclitus (Linneo, 1758) (Pisces, Ciprinodontidae) en medio hipersalino.Investigacions Pesqueras 51: 183–197.
Field, S. G., K. R. Clarke, andR. M. Warwick. 1982. A practical strategy for analyzing multispecies distribution patterns.Marine Ecology Progress Series 8:37–52.
Frid, C. L. J. 1988. The Marine invertebrate fauna of the North Norfolk salt marshes, and their ecology.Transactions of the Norfolk and Norwich Naturalist’s Society 28:46–50.
Halpin, P. M. 2000. Habitat use by an intertidal salt-marsh fish: Trade-offs between predation and growth.Marine Ecology Progress Series 198:203–214.
Kneib, R. T. 1984. Patterns in the utilization of the intertidal salt marsh by larvae and juveniles ofFundulus heterolitus (Linnaeus) andFundulus luciae (Baird).Journal of Experimental Marine Biology and Ecology 83:41–51.
Kneib, R. T. 1993. Growth and mortality in successive cohorts of fish larvae within an estuarine nursery.Marine Ecology Progress Series 94:115–27.
Kneib, R. T. 1997a. The role of tidal marshes in the ecology of estuarine nekton.Oceanography and Marine Biology: An Annual Review 35:163–220.
Kneib, R. T. 1997b. Patterns of invertebrate distribution and abundance in the intertidal salt marsh: Causes and questions.Estuaries 7:392–412.
Kneib, R. T. andS. L. Wagner. 1994. Nekton use of vegetated marsh habitats at different stages of tidal inundation.Marine Ecology Progress Series 106:227–238.
Laffaille, P., S. Brosse, E. Feunteun, A. Baisez, andJ.-C. Lefeuvre. 1998. Role of fish communities in particulate organic matter fluxes between salt marshes and coastal marine waters in the Mont Saint-Michel Bay.Hydrobiologia 373/374:121–133.
Laffaille, P., E. Feunteun, andJ.-C. Lefeuvre. 2000. Composition of fish communities in a European macrotidal salt marsh (the Mont Saint-Michel Bay, France).Estuarine, Coastal and Shelf Science 51:429–438
Mathieson, S., A. Cattrijsse, M. J. Costa, P. Drake, M. Elliott, J. Gardner, andJ. Marchand. 2000. Fish assemblages of European tidal marshes: A comparison based on species, families and functional guilds.Marine Ecology Progress Series 204: 225–242.
McIvor, C. C. andW. E. Odum. 1988. Food, predation risk, and microhabitat selection in a marsh fish assemblage.Ecology 69: 1341–1351.
Peterson, G. W. andR. E. Turner. 1994. The value of salt marsh edge vs. interior as a habitat for fish and decapod crustaceans in a Louisiana tidal marsh.Estuaries 17:235–262.
Potter, I. C., P. N. Claridge, andR. M. Warwick. 1986 Consistency of seasonal changes in an estuarine fish assemblage.Marine Ecology Progress Series 32:217–228.
Rozas, L. P. 1995. Hydroperiod and its influence on nekton use of the salt marsh: A pulsing ecosystem.Estuaries 18:579–590.
Rozas, L. P. andR. J. Zimmerman. 2000. Small-scale patterns of nekton use among mars hand adjacent shallow nonvegetated areas of the Galveston Bay estuary, Texas (USA).Marine Ecology Progress Series 193:217–239.
Serodio, J. andF. Catarino. 1999. Fortnightly light and temperature variability in estuarine intertidal sediments and implications for microphytobenthos primary productivity.Aquatic Ecology 33:235–241.
Shenker, J. M. andJ. M. Dean. 1979. The utilization of an intertidal salt marsh creek by larval and juvenile fishes: Abundance, diversity and temporal variation.Estuaries 2:154–163.
Ter Braak, C. J. F. 1995. CANOCO—A Fortran program for canonical community ordination by partial detrended canonical correspondence analysis, principal components and redundancy analysis. Agricultural and Mathematical Group, Ministry of Agriculture and Fisheries, ITI-TNO, Wageningen, Netherlands.
Ter Braak, C. J. F. andI. C. Prentice. 1988. A theory of gradient analysis.Advances in Ecological research 18:271–317.
Valf, C. andB. Sundby. 1987. Suspended sediment fluctuations in the Tejo estuary on semi-diurnal and fortnightly time scales.Estuarine, Coastal and Shelf Science 25:495–508.
Weinstein, M. P., S. L. Weiss, andM. F. Walters. 1980. Multiple determinants of community structure in shallow marsh habitats, Cape Fear River estuary, North Carolina, USA.Marine Biology 58:227–243.
Zar, J. H. 1996. Biostatistical Analysis, 3rd edition, Prentice Hall, Englewood Cliffs, New Jersey.
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Salgado, J.P., Cabral, H.N., Costa, M.J. et al. Nekton use of salt marsh creeks in the upper Tejo estuary. Estuaries 27, 818–825 (2004). https://doi.org/10.1007/BF02912043
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DOI: https://doi.org/10.1007/BF02912043