Moon and tidal influences on catch composition of fishes in one tidal flat of the Paranaguá Bay, Paraná, Brazil
Keywords:
fish, temporal variation, moon, tide, BrazilAbstract
In a tidal flat of the Paranaguá Bay, the influence of the tide and lunar phase on the capture of fish was analyzed. The collections were accomplished in the high tide and low tide of the syzygial (full moon) and quadrature (waning moon) tides, between August 1998 and July 1999. At all collection moments, two tows were made parallel to the coast, in the direction of the current, in 100 m long areas marked on the beach beforehand, using a seine net of 30.0 m x 2.0 m with a mesh of 0.5 cm between adjacent knots and a 2 m long bag. A total of 47,012 fish specimens were captured (179 kg), belonging to 110 species from 43 families. The mean number of species captured was significantly higher at full moon, while the mean diversity and equitability were statistically higher at high tide. On average, the size and weight of the fishes were also larger in the full moon and in the high tide. Between the phases of the moon and the two tides, statistical differences were not observed among the averages of the number of fish, weight of the capture and richness. The species structures were different between the captures at the low tide and high tide of the full moon and between the low tide of the full moon and the high tide of the waning moon. During the latter, the largest mean dissimilarity was observed, and the species that more contributed to this dissimilarity were Anchoa tricolor and Anisotremus surinamensis.
References
BAELDE, P. 1990 Differences in the structures of fish assemblages in Thalassia testudinum beds in Guadeloupe, French West Indies, and their ecological significance. Mar. Biol., 105: 163í 173.
CASTELLANOS, D.L. e ROZAS, L.P. 2001 Nekton use of submerged aquatic vegetation, marsh, and shallow unvegetated bottom in the Atchafalayc River delta, a Louisiana tidal freshwater ecosystem. Estuaries, 24(2): 184í 197.
CLARKE, K.R. e WARWICK, R.W. 1994 Change in marine communities: an approach to statistical analysis and interpretation. Plymouth Marine Laboratory. 859p.
CORRíÅ A, M.F.M.; CERDEIRAS, P.C.R.; PECKZARKA, J.C. 1988 Levantamento ictiológico do Guanandi, subbacia do rio Nhundiaquara (Morretes, PR, Brasil). Nerítica, 3(2): 37í 60.
DAVIES, T.L.O. 1988 Temporal changes in the fish fauna entering a tidal swamp system in tropical Australia. Env. Biol. Fish, 21: 161-172.
DELANCEY, L.B. 1989 Trophic relationship in the surf zone during the summer at Folly Beach,South Cardina. J. Coast. Res., 5(3): 477í 488.
GIBSON, R.N.; ROBB, L.; BURROWS, M.T.; ANSELL, A.D. 1996 Tidal, diel and longer term changes in the distribution of fishes on a Scottish sandy beach. Mar. Ecol. Prog. Series, 130: 1í 17.
GODEFROID, R.S.; HOFSTAETTER, M.; SPACH, H.L. 1998 Moon, tidal and diel influences on catch composition of fishes in the surf zone of Pontal do Sul beach, Parana. Revta bras. Zool., 15(3):647í 701.
GRAY, C.A.; CHECK, R.C.; MCELLEGOTT, D.J. 1998 Diel changes in assemblages of fishes associated with shallow seagrass and bare sand. Est. Coast. Shelf Sci., 46: 849í 859.
JOHANNES, R.E. 1978 Reproductive strategies of coastal marine fishes in the tropics. Env. Biol.Fish, 3: 65í 84.
LAROCHE, J.; BARAN, E.; RASOANANDRASANA, N.B. 1997 Temporal patterns of fish assemblage in a semi-arid mangrove zone in Madagascar. J.Fish Biol., 51: 3-20.
LASIAK, T. 1984 Structural aspects of the surf-zone fish assemblage at King’s Beach, Algoa Bay, South Africa: Short-term fluctuations. Est. Coast. Shelf Sci., 18: 347í 360.
LIN, H.J. e SHAO, K.T. 1999 Seasonal and diel changes in a subtropical mangrove fish assemblage. Bull. mar. Sci., 65(3): 775í 794.
QUINN, N.J. e KOJIS, B.L. 1981 The lack of changes in nocturnal estuarine fish assemblages between new and full moon phases in Serpentine Creek Queensland. Env. Biol. Fish, 6(2): 213í 218.
REISE, K. 1985 Tidal flat ecology. Berlin: SpringerVerlag. 191p.
ROOKER, J.R. e DENNIS, G.D. 1991 Diel, lunar and seasonal changes in a mangrove fish assemblage off southwestern Puerto Rico. Bull. mar. Sci.,49(3): 684í 698.
ROSS, S.T.; MC MICHAEL Jr, R.H.; RUPLE, D.L. 1987 Seasonal and diel variation in the standing crop of fishes and macroinvertebrates from a Gulf of Mexico Surf Zone. Est. Coast. Shelf Sci., 25: 391-412.
ROUNTREE, R.A. e ABLE, K.W. 1997 Diel variation in decapod crustacean and fish assemblages in New Jersey polyhaline marsh creeks. Est. Coast. Shelf Sci., 37: 181í 201.
ROZAS, L.P. 1995 Hydroperiod and its influence on nekton use of the salt marsh: a pulsing ecosystem.Estuaries, 18(4): 579í 590.
ROZAS, L.P. e MINELLO, T.J. 1997 Estimating densities of small fishes and decapod crustaceans in shallow estuarine habitats: a review of sampling design with focus on gear selection. Estuaries, 20(1): 199í 213.
ROZAS, L.P. e MINELLO, T.J. 1998 Nekton use of salt marsh, seagrass, and nonvegetated habitats in a south Texas (USA) estuary. Bull. mar. Sci.,63(3): 481í 501.
SOGARD, S.M.; POWELL, G.V.N.; HOLMQUIST, J.F. 1989 Utilization by fishes of shallow, seagrass covered banks in Florida Bay: 2. Diel and tidal patterns. Env. Biol. Fish, 24(2): 81í 92.
SOKAL, R.R. e ROHLF, F.J. 1995 Biometry. New York: W.H. Freeman and Company. 859p.
TZANG, W.N. e WANG, Y.T. 1992 Structure, composition and seasonal dynamics of the larval and juvenile fish community in the mangrove estuary of Tanshui river, Taiwan. Mar. Biol.,113(3): 481í 490.
YÁNEZ-ARANCIBIA, A. 1986 Ecología de la zona costera: Análisis de siete tópicos. México, D. F.:AGT. 200p.
