https://revistas.ucr.ac.cr/index.php/rbtRevista de Biología Tropical ISSN Impreso: 0034-7744 ISSN electrónico: 2215-2075

Seasonal vertical distribution, abundance, biomass, and biometrical relationships of ostracods in Golfo Dulce, Pacific coast of Costa Rica

Alvaro Morales-Ramírez, Jens Jakob



DOI: https://doi.org/10.15517/rbt.v56i4.27217

Abstract


The abundance, biomass, and vertical distribution of ostracods, as well as some biometrical relationships, were investigated during a 24h cycle over a period of two days, both in May and September 1995 in Golfo Dulce, on the Pacific coast of Costa Rica. The sampling was performed according to the tidal cycle, in addition to vertical sampling at depths of 0-10-20-30-40-50-70-80 and 100m to determine temperature, salinity, oxygen concentration, and Secchi depth. Zooplankton samples were taken using a close-up Nansen net in three sampling layers: 0-20m, 20-50m and 50-100m. Ostracod abundance (adults and developmental stages) and total dry weight biomass were estimated from one aliquot obtained with a Folsom Plankton Splitter. Ostracod dry weight biomass was measured by taking between five and fifty organisms of a single development stage. Four ostracod species were found: Cypridina americana, Euchonchoecia chierchiae, Porroecia spinirostris, and Porroecia sp.. Biometrical relationships for the former two species revealed significant differences between all stages both in average length and season (p<5.10-7), and seasonal differences in the size between males and females for both species, with strong sexual dimorphisms in the males. Seasonal differences in biomass were found in C. americana due to the fact that ovigerous females weighed twice as much in May than in September. Species dominance in ostracod abundance alternated between E. chierchiae and C. americana, depending on the season. In general terms, both species were primarily found at depths within the first 20m in May, while at depths greater than 50m abundance was only 2% and 0.4% for C. americana and E. chierchiae, respectively. In May, some differences in the day/night rhythms were detected in C. americana in all developmental stages, except the first stages, which were always found at depths within the first 20m, in contrast to E. chierchiae, where all development stages, except stage I, remained in the first sampled layer, regardless of circadian periodicity. Differences in vertical patterns may be related to a predator avoidance behavior or to utilization of food resources related to ontogenetic components, at least for C. americana. Ostracod abundance in Golfo Dulce, in comparison with the oceanic environment, is extraordinary high in spite of the oceanic features of this gulf. Both species play an important role in the trophic ecology of Golfo Dulce, where C. americana is a detritivorous species and a facultative predator, whereas E. chierchiae grazes on organic matter. This is the first ecological study on ostracods from Costa Rican coastal waters. Rev. Biol. Trop. 56 (Suppl. 4): 125-147. Epub 2009 June 30.

Keywords


ostracods; Golfo Dulce; Pacific; abundance; biomass; distribution; Cypridina americana; Costa Rica

Full Text:

PDF

References


Amari, Z.A. & H. Pasulekar. 1993. Distribution, abundance and ecology of the meiofauna in a tropical estuary along the west-coast of India. Hydrobiology 262: 115-126.

Ambler, J.W. & C.B. Miller. 1987. Vertical habitat-partitioning by copepodites and adults of subtropical oceanic copepods. Mar. Biol. 94: 561-577.

Angel, M. 1968. The thermocline as an ecological boundary. Sarsia 34: 299-312.

Angel, M. 1977. Some speculation on the caparace lengh in planktonic halocyprid ostracods, p. 45-54. In H. Loffler & D. Danielpol (eds). Aspects of ecology and zoogeography of recent and fossil Ostracoda. Junk. The Hague, The Netherlands.

Angel, M. 1979. Studies on Atlantic halocyprid ostracods: their vertical distribution and community structure in the central gyre region along 30° N from off Africa to Bermuda. Prog. Oceanog. 8: 3-124.

Angel, M. 1981. Ostracoda, p. 543-585. In D. Boltovskoy (ed.). Atlas del Zooplancton del Atlántico Sudoccidental y Métodos de Trabajo. IPN, Buenos Aires, Argentina.

Angel, M. 1984. The diel migration and distribution within a mesopelagic community in the Northeast Atlantic. III. Planktonic ostracods, a stable component in the community. Prog. Oceanog. 13: 319-351.

Angel, M. 1996. Ostracoda, p. 213-247. In R. Gasca & E. Suárez (eds.). Introducción al estudio del zooplancton marino. ECOSUR-CONACYT, Mexico DF, Mexico.

Angel, M. 1999. Ostracoda, p. 815-868. In D. Boltovskoy (ed.). South Atlantic Zooplankton. Backhuys Publ. Leiden, The Netherlands.

Angel, M. & M.J.R. Fasham. 1975. Analysis of the vertical and geographical distribution of the abundant species of planktonic ostracods in the North-east Atlantic. J. Mar. Biol. Assoc. UK 54: 879-894.

Bednarski, M. & A. Morales-Ramírez. 2004. Composition, abundance and distribution of macrozooplankton in Culebra Bay, Gulf of Papagayo, Pacific coast of Costa Rica and its value as bioindicator of pollution. Rev. Biol. Trop. 52 (Suppl. 2): 105 -118.

Brautovi , I., N. Bojani , M. Batisti & M. Cari . 2006. Annual variability of planktonic ostracods (Crustacea) in the South Adriatic Sea. Mar. Ecol. 27: 124-132.

Brenes, C.L. & S. León. 1988. Algunos aspectos físicoquímicos del Golfo Dulce. Ing. Cienc. Quím. 12: 12-16.

Castillo, R., T. Antezna & P. Ayon. 2007. The influence of El Niño 1997-98 on pelagic ostracods in the Humboldt Current ecosystem off Peru. Hydrobiologia 585: 29-41.

Chavtur, V.G. 1976. Fauna of pelagic ostracods of the halocyprididae family in the northwestern part of the Pacific Ocean. Trans. Inst. Mar. Biol. Akad. Sci. USSR Far. East Sci Center 6: 99-109.

Cornils, A., S. B. Schnack-Schiel, W. Hagen, M. Dowidar, N. Stambler, O. Plähn & C. Richter. 2005. Spatial and temporal distribution of mesozooplankton in the Gulf of Aqaba and the Northern Red Sea in February/ March 1999. J. Plank. Res. 27: 505-518.

Deevey, G.B. 1968. Pelagic Ostracods of the Sargasso Sea off Bermuda. Peabody Mus. Nat. Hist. Bull. 26: 1-125.

Elofson, O. 1941. Zur Kenntnis der marinen ostracoden Schwedens mit besinderer berücksichtigung des skageraks. Zool. Bidr. Uppsala 19: 215-534.

Elorduy-Garay, J.F. & J. Caraveo-Patiño. 1994. Feeding habitats of ocean whitefish Caulobatilus princeps Jenys 1842 (Piscis :Branchiostegidae) in La Paz Bay, B.C.S., Mexico. Cienc. Mar. 20: 199-218.

Gilland, L. 1977. Grössenwachstum bei Ostracoden : untersucht an der Larvalentwicklung von Cypridopsis parvoides Martens 1977. Abh. Verh. Naturwiss. Ver. Hamburg 20: 99-112.

Guerao, G. 1995. Locomotor-activity patterns and feeding habitats in the prawn Palaemon xiphias (Crustacea, Decapoda: Palaemonidae) in Alfar Bay, Ebro Delta (Northwest Mediterranean). Mar. Biol. 122: 115-119.

Guzmán, H. & V. Obando. 1988. Diversidad y abundancia diaria y estacional del zooplancton marino de la Isla del Caño, Costa Rica. Rev. Biol. Trop. 36: 139-150.

Heitkamp, U. 1978. Postembrionales Grössenwachstum limnischer Cyprididae (Crustacea: Ostracoda). Zool. Anz. Jena 202: 391-412.

Hiatt, R.W. 1948. The biology of the lined shore crab Pachyrapsus crassipes Randal. Pacific Sci. 2: 135- 213.

Hopkins, T.L. 1982. The vertical distribution of zooplankton in the eastern Gulf of Mexico. Deep Sea Res. 29: 1069-1083.

Hopkins, T.L. & R.C. Baird. 1985. Feeding ecology of four hatchet fishes (Sternoptychidae) in the Eastern Gulf of Mexico. Bull. Mar. Sci. 36: 260-277.

Hopkins, T.L., M.E. Flock, J.V. Gartner & J.J. Torres. 1994. Structure and trophic ecology of a low-latitude midwater decapod and mysid assemblage. Mar. Ecol. Prog. Ser. 109: 143-156.

Ikeda, T. 1990. Ecological and biological features of a mesopelagic ostracod, Conchoecia pseudodiscophora,in the Japan Sea. Mar. Biol. 107: 453-461.

Ikedea, T. 1991. Laboratory observations on spawing, fecundity and early development of a mesopelagic ostracod, Conchoecia pseudodiscophora, from the Japan Sea. Mar. Biol. 112: 313-318

Ikedea, T. 1992. Population structure anf life cycles of the mesopelagic ostracod Conchoecia pseudodiscophora in Toyoma Bay, southern Japan Sea. Mar. Biol. 113: 595-601.

Hossfeld, B., H. Molina & A. Morales. 1994. Zooplankton, p. 42-53. In M. Wolff & J.A. Vargas (eds.). RV Victor Hensen Costa Rica Expedition 1993-1994. Cruise Report. Center for Tropical Marine Ecology. Bremen, Germany.

Jacob, J. 1996. Zur Ökologie und Biometrie pelagischer Ostracoden im Golfo Dulce (Costa Rica). M.Sc. Thesis, University of Berlin, Germany.

Johnson, J.M. 1995. Diel feeding ecology of three species of aquatic insects. J. Freshwater Ecology 10: 183-188.

Kehayias, G., N. Fragopoulu & J. Lykakis. 1994. Vertical community structure and ontogenetic distribution of chaetognats in upper pelagic waters of the eastern Mediterranean. Mar. Biol. 119: 647-653.

Kesling, R.V. 1952. Doubling in size of ostracod carapaces in each molt stage. J. Paleont. 26: 772-780

Kesling, R.V. 1953. A slide rule for the determination of instar in ostracod species. Contrib. Mus. Paleont. Univ. Michigan 11: 97-109.

Kinsey, S.T. & T.L. Hopkins. 1994. Trophic strategies of euphausiids in low-latitudes ecosystem. Mar. Biol. 118: 650-661.

Kock, R. 1992. Ostracoden im epipelagial von der Antarhtischen halbinsel-ein Beitrag zur Systematik sowie zur Verbreitung und Populationsstruktur unter Berrücksichtigung der Saisonalität. Berichte Polarforsch. 106: 1-209.

Kornicker, L.S. 1967. The myodocopid ostracods: families Philomedidae and Pseudophilomedidae (new family). Proc.U.S.A. Nat. Mus. 12: 1-35.

Kornicker, L.S. 1968. Bathyal myodocopid Ostracoda from the Northeastern Gulf of Mexico. Proc. Biol. Soc. Washington 81: 439-472.

Kornicker, L.S. 1970a. Ostracoda (Myodocopina) from the Peru-Chile Trench and the Antarctic Ocean. Smithsonian Contrib. Zool. 32: 1-42.

Kornicker, L.S. 1970b. Myocopid Ostracoda (Cypridinacea) from Philippine Islands. Smithsonian Contrib. Zool. 39: 1-32.

Kornicker, L.S. 1974. Revision of the Cypridinacea of the Gulf of Naples (Ostracoda). Smithsonian Contrib. Zool. 178: 1-64.

Kornicker, L.S. 1975. Antarctic ostracoda (Myodocopina), parts I and II. Smithsonian Contrib. Zool. 163: 1-720.

Kornicker, L.S. 1983. The ostracod family Cypridinidae and the genus Pterocypridina. Smithsonian Contrib. Zool. 32: 1-42.

Kornicker, L.S. 1987. Supplementary description of Cypridina americana (Müller 1890), a bioluminiscent myodocopid ostracod from the east Pacific. Proc. Biol. Soc. Washington 100: 173-181.

Kornicker, L.S. 1991. Myocopodid Ostracoda of Enewetak and Bikini Atolls. Smithsonian Contrib. Zool. 505: 1-139.

Kornicker, L.S., S. Wirsing & M. MacManaus. 1976. Biological studies of the Bermuda Ocean Acre: planktonic ostracods. Smithsonian Contrib. Zool. 233: 1-34.

Lancroft, T.M., T.L. Hopkins & J.J. Torres 1988. Aspects of the ecology of the mesopelagic Ganostoma elongatum (Ganostomatidae, Stomiiformes) in the Eastern Gulf of Mexico. Mar. Ecol. Prog. Ser. 49: 27-40.

Longhurst, A.R. 1976. Interaction between zooplankton and phytoplankton profiles in the Eastern tropical Pacific Ocean. Deep Sea Res. 23: 729-754.

Mauchline, J. 1976. The Hiatt growth diagram for Crustacea. Mar. Biol. 35: 79-84.

Moguilevsky, A. & M. Angel. 1975. Halocyprid ostracods in Atlantic neuston. Mar. Biol. 32: 295-302.

Morales-Ramirez, A. 1993. Vertikale und regionale Verteilung des Mesozooplanktons in Nordostatlantik unter des besonderen Berücksichtigung von Copepoden. Berichte aus dem Institut für Meereskunde an der Universität Kiel, Germany. 229 p.

Olafson, E. & R. Elmgren. 1997. Seasonal dynamics of sublittoral meiobenthos in relation to phytoplankton sedimentation in the Baltic Sea. Est. Coast. And Shelf Sci. 45: 149-164.

Paffenhöfer, G.A. 1993. On the ecology of marine cyclopoid copepods (Crustacea, Copepoda). J. Plankton Res. 15: 37‑55. Pearse, A.S. & G. Gunter. 1966.

Salinity. In J.W. Hedgepeth (ed.). Treatise on Marine Ecology and Paleontology. Vol. I. Geol. Soc. Amer. Mem. 67.

Poulsen, E.M. 1977. Zoogeographical remarks on marine pelagic Ostracoda. Dana-Report N°87: 1-34.

Quesada-Alpizar, M.A. & A. Morales-Ramírez. 2004. Comportamiento de las masas de agua en el Golfo Dulce, Costa Rica durante el Niño (1997-1998). Rev. Biol. Trop. 52 (Suppl. 2): 95-103.

Raymont, J.E.G. 1983. Plankton and productivity in the Ocean. Vol. II. Zooplankton. Pergamon. New Jersey, USA.

Richards, F.A., J.J. Anderson & J.D. Cline. 1971. Chemical and physical observations in Golfo Dulce, an anoxic basin in the Pacific coast of Costa Rica. Limnol. Oceanog. 16: 43-50.

Roman, M.R. & A.L. Gauzens. 1993. Effects of low oxygen waters on Chesapeake Bay zooplankton. Limnol. Oceanog. 38: 1603-1614.

Ruiz, F., M. Abad, A.M. Bodergat, P. Carbonel, J. Rodríguez-Lázaro & M. Yasuhara. 2005. Marine and brackish-water ostracods as sentinels of antropogenic impact. Earth Sci. Rev. 72: 89-11

Sameoto, D.D. 1986. Influence of the biological and physical environment on the vertical distribution of mesozooplankton and micronekton in the Eastern tropical Pacific. Mar. Biol. 93: 263-279.

Sazar, P.M. & G.J. Glova. 1998. Diel feeding and prey selection of three size classes of short finned eel (Anguilla australis) in New Zeland. New Zeal J. Mar Freshwat Res. 49: 421-428.

Segura, L., R.M. Hernández & L. Mosones. 1992. Distribución y abundancia de los quetognatos (Chaetognatha) en la región del Domo de Costa Rica. Rev. Biol. Trop. 40: 35-42.

Shimomura, O. 2006. The ostracod Cypridina (Vargula) and others luminous crustaceans. p. 47-86. In O. Shimomura (ed.) Bioluminiscence: chemical principles and methods. World Scientific Pub. Co. Inc. London. UK.

Somerton, D.A. 1981. Fitting strighm lines to Hiatt growth diagrams: a re-evaluation. J. Cons. Int. Explor. Mer 39 : 15-19.

Uye, S., C. Huang & T. Onbe. 1990. Ontogenic diel migration of the planktonic copepod Calanus sinicus in the inland Sea of Japan. Mar. Biol. 104: 389-396.

van Wangelin, M. & M. Wolff. 1996. Comparative biomass spectra and species composition of the zooplankton communities in Golfo Dulce and Golfo de Nicoya, Pacific coast of Costa Rica. Rev. Biol. Trop. 44 (Suppl. 3): 135-156.

Vijayalakshmi R., N & M. Madhupratap. 1984. Latitudinal range of epiplanktonic chaetognatha and ostracoda in the western tropical Indian Ocean. Hydrobiologia 112: 209-216.

Vinogradov, M.E. & N.M. Voronina. 1962. The influence of oxygen deficit upon the plankton distribution in the Arabian Sea. Deep Sea Res. 9: 523-530.

Williams, R. 1991. Spatial heterogeneity and niche differentiation in oceanic zooplankton. Hydrobiology 167/168: 151-160.

Wolff, M. & M. Soto. 1992. Population dynamics of Cancer polyodon in La Herradura Bay, Northern Chile. Mar. Ecol. Prog. Ser. 85: 89-101.

Wolff, M. & J.A. Vargas. 1994. RV Victor Hensen Costa Rica Expedition 1993-1994. Cruise Report. ZMT (Tropical Marine Ecology Center), University of Bremen, Bremen, Germany.

Wolff, M., H.J. Hartmann & V. Koch. 1996. A pilot trophic model for Golfo Dulce, a fjord-like embayment, Costa Rica. Rev. Biol. Trop. 44 (Supp. 3): 215-231.


Refbacks

  • There are currently no refbacks.


© 2017 Universidad de Costa Rica. Para ver más detalles sobre la distribución de los artículos en este sitio visite el aviso legal. Este sitio es desarrollado por UCRIndex y Open Journal Systems.