First report on the contribution of small-sized species to the copepod community structure of the southern Patagonian shelf (Argentina, 47-55°S)
The copepod community structure, with special emphasis on small-sized species, was studied over the southern Patagonian shelf in late summer 2004, applying the first plankton sampling in the region with a fine-mesh (66 μm) net. The key role of the copepods Drepanopus forcipatus and Calanus australis...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Consejo Superior de Investigaciones Científicas
2014
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Online Access: | https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1499 https://doi.org/10.3989/scimar.03906.31C |
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ftjscientiamarin:oai:scientiamarina.revistas.csic.es:article/1499 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Scientia Marina (E-Journal) |
op_collection_id |
ftjscientiamarin |
language |
English |
topic |
mesozooplankton microcopepods southern Patagonian shelf size spectra Oithona helgolandica Micosetella norvegica Drepanopus forcipatus mesozooplancton microcopépodos plataforma patagónica austral rango de tamaños |
spellingShingle |
mesozooplankton microcopepods southern Patagonian shelf size spectra Oithona helgolandica Micosetella norvegica Drepanopus forcipatus mesozooplancton microcopépodos plataforma patagónica austral rango de tamaños Antacli, Julieta Carolina Hernández, Daniel Raúl Sabatini, Marina Elena First report on the contribution of small-sized species to the copepod community structure of the southern Patagonian shelf (Argentina, 47-55°S) |
topic_facet |
mesozooplankton microcopepods southern Patagonian shelf size spectra Oithona helgolandica Micosetella norvegica Drepanopus forcipatus mesozooplancton microcopépodos plataforma patagónica austral rango de tamaños |
description |
The copepod community structure, with special emphasis on small-sized species, was studied over the southern Patagonian shelf in late summer 2004, applying the first plankton sampling in the region with a fine-mesh (66 μm) net. The key role of the copepods Drepanopus forcipatus and Calanus australis was confirmed, but also the high abundance and frequency of occurrence of the microcopepods Oithona helgolandica and Microsetella norvegica and of the medium-sized copepod Ctenocalanus vanus were revealed. Copepod community structure was nearly homogenous over the entire study area. Drepanopus forcipatus, O. helgolandica and M. norvegica were identified as the typical species of the region, although secondarily C. australis and Oithona atlantica also contributed significantly to community similarity across the area. The study of interspecific relationships of dominant copepods indicated that D. forcipatus and C. australis were associated positively with O. helgolandica, while C. vanus, and M. norvegica constituted a separate assemblage with Clausocalanus brevipes and O. atlantica. The importance of fine-mesh-size nets for collecting the smaller size fractions of mesozooplankton and for accurately portraying the mesozooplankton assemblage structure in the area is stressed by this study. La estructura de la comunidad de copépodos, con especial énfasis en las especies de pequeño tamaño, se estudió en la plataforma patagónica austral durante el verano tardío de 2004, a partir del primer muestreo de plancton en la región con una red de malla fina (66 μm). Se confirmó el rol clave de las especies Drepanopus forcipatus y Calanus australis, pero al mismo tiempo se evidenció la gran abundancia y frecuencia de ocurrencia de los microcopépodos Oithona helgolandica y Microsetella norvegica y del copépodo de tamaño medio Ctenocalanus vanus. La estructura de la comunidad de copépodos fue aproximadamente homogénea en toda el área de estudio. Drepanopus forcipatus, O. helgolandica y M. norvegica resultaron las especies típicas de la región y, aunque secundariamente, C. australis y Oithona atlantica también contribuyeron significativamente a la similitud en el área. El estudio de las interrelaciones entre las especies dominantes indicó que D. forcipatus y C. australis estuvieron positivamente asociados con O. helgolandica, mientras que C. vanus y M. norvegica conformaron otra asociación con Clausocalanus brevipes y O. atlantica. A partir de este estudio se enfatiza la importancia de las redes de malla fina para colectar las fracciones de tamaño más pequeñas del mesozooplancton y para describir correctamente la estructura de la comunidad mesozooplanctónica en el área. |
format |
Article in Journal/Newspaper |
author |
Antacli, Julieta Carolina Hernández, Daniel Raúl Sabatini, Marina Elena |
author_facet |
Antacli, Julieta Carolina Hernández, Daniel Raúl Sabatini, Marina Elena |
author_sort |
Antacli, Julieta Carolina |
title |
First report on the contribution of small-sized species to the copepod community structure of the southern Patagonian shelf (Argentina, 47-55°S) |
title_short |
First report on the contribution of small-sized species to the copepod community structure of the southern Patagonian shelf (Argentina, 47-55°S) |
title_full |
First report on the contribution of small-sized species to the copepod community structure of the southern Patagonian shelf (Argentina, 47-55°S) |
title_fullStr |
First report on the contribution of small-sized species to the copepod community structure of the southern Patagonian shelf (Argentina, 47-55°S) |
title_full_unstemmed |
First report on the contribution of small-sized species to the copepod community structure of the southern Patagonian shelf (Argentina, 47-55°S) |
title_sort |
first report on the contribution of small-sized species to the copepod community structure of the southern patagonian shelf (argentina, 47-55°s) |
publisher |
Consejo Superior de Investigaciones Científicas |
publishDate |
2014 |
url |
https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1499 https://doi.org/10.3989/scimar.03906.31C |
long_lat |
ENVELOPE(20.233,20.233,68.826,68.826) ENVELOPE(-67.467,-67.467,-67.583,-67.583) |
geographic |
Argentina Austral Malla Pequeñas |
geographic_facet |
Argentina Austral Malla Pequeñas |
genre |
Arctic Copepods |
genre_facet |
Arctic Copepods |
op_source |
Scientia Marina; Vol. 78 No. 1 (2014); 17-26 Scientia Marina; Vol. 78 Núm. 1 (2014); 17-26 1886-8134 0214-8358 10.3989/scimar.2014.78n1 |
op_relation |
https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1499/1666 https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1499/1634 https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1499/1667 Alder V.A., Franzosi C.A. 2003. Distribución del picoplancton en el Mar Epicontinental Argentino. XIII Coloquio Argentino de Oceanografía, Mar del Plata. Alder V.A., Franzosi C.A. 2005. Picoplankton abundances in two contrasting areas: the Southern Ocean and the Argentine Sea. IX SCAR Biology Symposium: Evolution and biodiversity in Antarctica, Curitiba. Almandoz G.O., Ferrario M.E., Ferreyra G.A. Schloss I.R., Esteves J.L., Paparazzo F.E. 2007. The genus Pseudo-nitzschia (Bacillariophyceae) in continental shelf waters of Argentina (Southwestern Atlantic Ocean, 38°-55°S). Harmful Algae 6: 93-103. http://dx.doi.org/10.1016/j.hal.2006.07.003 Anderson J.T., Warren W.G. 1991. Comparison of catch rates among small and large Bongo samplers for Calanus finmarchicus copepodite stages. Can. J. Fish. Aquat. Sci. 48: 303-308. http://dx.doi.org/10.1139/f91-042 Antacli J.C. 2011. Estrategias de vida de los copépodos Drepanopus forcipatus y Calanus australis en relación con los recursos tróficos en la plataforma patagónica austral (Argentina, 47°-55°S). Tesis doctoral, Univ. Nac. Mar del Plata, 199 pp. Antacli J.C., Sabatini M.E., Hernández D. 2010. Estimating copepods' abundance with paired nets: Implications of mesh size for population studies. J. Sea Res. 63: 71-77. http://dx.doi.org/10.1016/j.seares.2009.09.004 Bernard K.S., Froneman P.W. 2002. Mesozooplankton community structure in the Southern ocean upstream of the Prince Edward Islands. Polar Biol. 25: 597-604. Bernard K.S., Froneman P.W. 2003. Mesozooplankton community structure and grazing impact in the Polar Frontal Zone during austral autumn 2002. Polar Biol. 26: 268-275. Bernard K.S., Froneman P.W. 2005. Trophodynamics of selected mesozooplankton in the west-Indian sector of the Polar Frontal Zone, Southern Ocean. Polar Biol. 28(8): 594-606. http://dx.doi.org/10.1007/s00300-005-0728-3 Björnberg T.K.S. 1981. Copepoda. In: Boltovskoy D. (ed.), Atlas del Zooplancton del Atlántico Sudoccidental y Métodos de Trabajo con el Zooplancton Marino. Public. Espec. INIDEP, Mar del Plata, pp. 587-679. Borouche J.M., Saporta G. 1983. L'analyse des donnèes. Presses Universitaires de France, Paris, 126 pp. Boxshall G.A., Halsey S.H. 2004. An introduction to copepod diversity. The Ray Society Series. Ray Society, London, 966 pp. Bradford J.M., Ohman M.D., Jillet J.B. 1988. Larval morphology and development of Neocalanus tonsus, Calanoides macrocarinatus and Calanus australis (Copepoda: Calanoida) in the laboratory. N. Z. J. Mar. Freshw. Res. 22: 301-320. http://dx.doi.org/10.1080/00288330.1988.9516303 Bradford-Grieve J.M. 1999. Copepoda. In: Boltovskoy D. (ed.), South Atlantic Zooplankton. Backhuys Publishers, 2, Leiden, The Netherlands, pp. 869-1098. Bulleri F., Chapman M.G., Underwood A.J. 2005. Intertidal assemblages on seawalls and vertical rocky shores in Sydney Harbour, Australia. Austral Ecol. 30: 655-667. http://dx.doi.org/10.1111/j.1442-9993.2005.01507.x Cefarelli A.O., Ferrario M.E., Almandoz G.O., Atencio A.G., Akselman R., Vernet M. 2010. Diversity of the diatom genus Fragilariopsis in the Argentine Sea and Antarctic waters: morphology, distribution and abundance. Polar Biol. 33: 1463-1484. http://dx.doi.org/10.1007/s00300-010-0794-z Clarke K.R., Gorley R.N. 2001. PRIMER v5: User Manual/Tutorial. Plymouth Routines in Multivariate Ecological Research. PRIMER-E: Plymouth, 91 pp. Clarke K.R., Warwick R.M. 1994. Change in Marine Communities: An Approach to Statistical Analysis and Interpretation. Natural Environment Research Council, Plymouth Marine Laboratory, Plymouth, UK, 144 pp. Di Mauro R., Capitanio F., Vi-as M.D. 2009. Capture efficiency for small dominant mesozooplankters (Copepoda, Appendicularia) off Buenos Aires province (34ºS-41ºS), Argentine sea, using two plankton mesh sizes. Braz. J. Oceanogr. 57(3): 205-214. http://dx.doi.org/10.1590/S1679-87592009000300004 Dugas J.D., Koslow J.A. 1984. Microsetella norvegica: a rare report of a potentially abundant copepod on the Scotian Shelf. Mar. Biol. 84: 131-134. http://dx.doi.org/10.1007/BF00392997 Evans M.S., Sell W.S. 1985. Mesh size and collection characteristics of 50-cm diameter conical plancton nets. Hydrobiologia 122: 97-104. http://dx.doi.org/10.1007/BF00032095 Fish C.J. 1955. Observations on the biology of Microsetella norvegica. Pap. Mar. Biol. Oceanogr. Deep Sea Res. 3(Suppl): 242-249. Gallienne C.P., Robins D.B. 2001. Is Oithona the most important copepod in the world's oceans? J. Plankton Res. 23: 1421-1432. http://dx.doi.org/10.1093/plankt/23.12.1421 Grandori R. 1912. Studi sullo sviluppo larvale dei copepodi pelagici. Redia 8: 440-447. Heron G.A., Bowman T.E. 1971. Postnaupliar developmental stages of the copepod crustaceans Clausocalanus laticeps, C. brevipes, and Ctenocalanus citer (Calanoida: Pseudocalanidae). In: Llano G.U., Wallen I.E. (eds), Biology of the Antartic seas, IV, Union Am. Geophys. 17: 141-165. Hirota R. 1964. Zooplankton investigation in Hiunchi-nada in the Setonaikai (Inland Sea of Japan). I. The seasonal occurrence of copepods at three stations in Hiuchi-nada. J. Oceanogr. Soc. Japan 20: 24-31. Hirota R., Hara M. 1975. Zooplankton investigations in Yatsushiro-Kai, western Kyushu, Japan. Part I. Regional and seasonal occurrences of the important zooplankton. J. Oceanogr. Soc. Japan 31: 115-123. http://dx.doi.org/10.1007/BF02120194 Hopcroft R.R., Roff J.C., Lombard D. 1998. Production of tropical copepods in Kingston Harbour, Jamaica: the importance of small species. Mar. Biol. 130: 593-604. http://dx.doi.org/10.1007/s002270050281 Hulsemann K. 1991. The copepodid stages of Drepanopus forcipatus Giesbrecht, with notes on the genus and a comparison with other members of the family Clausocalanidae (Copepoda, Calanoida). Helgol. Meeresunters. 45: 199-224. http://dx.doi.org/10.1007/BF02365642 Hwang J., Kumar R., Dahms H., Tseng L., Chen Q. 2007. Mesh size affects abundance estimates of Oithona spp. (Copepoda, Cyclopoida). Crustaceana 80: 827-837. http://dx.doi.org/10.1163/156854007781363169 Koski M., Kiørboe T., Takahashi K. 2005. Benthic life in the pelagic: Aggregate encounter and degradation rates by pelagic harpacticoid copepods. Limnol. Oceanogr. 50(4): 1254-1263. http://dx.doi.org/10.4319/lo.2005.50.4.1254 Morales C.E., Torreblanca M.L, Hormazabal S., Correa-Ramírez M., Nu-ez S., Hidalgo P. 2010. Mesoscale structure of copepod assemblages in the coastal transition zone and oceanic waters off central-southern Chile. Prog. Oceanogr. 84: 158-173. http://dx.doi.org/10.1016/j.pocean.2009.12.001 Narcy F. 2010. Life strategy of Oithona similis and role in trophic interactions in an arctic coastal ecosystem. Ph. D. thesis, Univ. Tromsø, 41 pp. Olguín H., Alder V.A., Boltovskoy D. 2005. General trends of phytoplankton (20-200 μm) from the Argentine Sea and Antarctic Ocean during austral summer 2002, with emphasis on diatom species. Ber. Polarforsch./Rep. Polar Res. 507: 167-168. Paffenhöfer G.A. 1998. Heterotrophic protozoa and small metazoa: feeding rates and prey-consumer interactions. J. Plankton Res. 20: 121-134. http://dx.doi.org/10.1093/plankt/20.1.121 Pitois S.G., Shaw M., Fox C.J., Frid C.L.J. 2009. A new fine-mesh zooplankton time series from the Dove sampling station (North Sea). J. Plankton Res. 31: 337-343. http://dx.doi.org/10.1093/plankt/fbn121 Postel L., Fock H., Hagen W. 2000. Biomass and abundance. In: Harris R.P., Wiebe P.H., Lenz J., Skjoldal H.R., Huntley M. (eds), ICES Zooplankton Methodology Manual. Academic Press, San Diego, California, pp. 83-174. http://dx.doi.org/10.1016/B978-012327645-2/50005-0 Ramírez F.C. 1970a. Copépodos planctónicos del sector bonaerense del Atlántico Sudoccidental. Datos y resultados de las campa-as pesquería. Serie Informes Técnicos, Mar del Plata, Publicación N° 10/XV, 116 pp. Ramírez F.C. 1970b. Copépodos planctónicos del sector patagónico. Resultados de la Campa-a 187 'Pesquería XI'. Physis 79: 473-476. Ramírez F.C. 1971. Copépodos planctónicos de los sectores bonaerense y norpatagónico. Resultados de la Campa-a 'Pesquería III'. Revista del Museo de La Plata n.s. Zoología 11: 73-94. Ramírez F.C. 1981. Zooplancton y producción secundaria, Parte I, Distribución y variación estacional de los copépodos. In: Angelescu V. (ed.), Campa-as de investigación pesquera realizadas en el Mar Argentino por los B/I 'Shinkai Maru' y 'Walther Herwig' y B/P 'Marburg', a-os 1978 y 1979, Resultados de la Parte Argentina. Contrib. Inst. Nac. Invest. Desarr. Pesq. 383: 202-212. Ramírez F.C., Sabatini M.E. 2000. The occurrence of Calanidae species in waters off Argentina. Hydrobiologia 439: 21-42. http://dx.doi.org/10.1023/A:1004193401931 Sabatini M.E. 1990. The developmental stages (Copepodids I to VI) of Acartia tonsa Dana, 1849 (Copepoda, Calanoida). Crustaceana 59: 53-61. http://dx.doi.org/10.1163/156854090X00282 Sabatini M.E. 2008a. El ecosistema de la plataforma patagónica austral, Marzo-Abril 2000. Composición, abundancia y distribución del zooplancton. Rev. Invest. Desarr. Pesq. 9: 5-20. Sabatini M.E. 2008b. Life history trends of copepods Drepanopus forcipatus (Clausocalanidae) and Calanus australis (Calanidae) in the southern Patagonian shelf (SW Atlantic). J. Plankton Res. 30: 981-996. http://dx.doi.org/10.1093/plankt/fbn062 Sabatini M.E., Ramírez F.C., Martos P. 2000. Distribution pattern and population structure of Calanus australis Brodsky, 1959 over the southern Patagonian Shelf off Argentina in summer. ICES J. Mar. Sci. 57: 1856-1866. http://dx.doi.org/10.1006/jmsc.2000.0969 Sabatini M.E., Álvarez Colombo G.L. 2001. Seasonal pattern of zooplankton biomass in the Argentinean shelf off Southern Patagonia (45°-55°S). Sci. Mar. 65: 21-31. |
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ftjscientiamarin:oai:scientiamarina.revistas.csic.es:article/1499 2023-05-15T14:28:29+02:00 First report on the contribution of small-sized species to the copepod community structure of the southern Patagonian shelf (Argentina, 47-55°S) Primer informe sobre la contribución de microcopépodos a la estructura de la comunidad mesozooplanctónica de la plataforma patagónica austral (Argentina, 47-55°S) Antacli, Julieta Carolina Hernández, Daniel Raúl Sabatini, Marina Elena 2014-03-30 text/html application/pdf text/xml https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1499 https://doi.org/10.3989/scimar.03906.31C eng eng Consejo Superior de Investigaciones Científicas https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1499/1666 https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1499/1634 https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1499/1667 Alder V.A., Franzosi C.A. 2003. Distribución del picoplancton en el Mar Epicontinental Argentino. XIII Coloquio Argentino de Oceanografía, Mar del Plata. Alder V.A., Franzosi C.A. 2005. Picoplankton abundances in two contrasting areas: the Southern Ocean and the Argentine Sea. IX SCAR Biology Symposium: Evolution and biodiversity in Antarctica, Curitiba. Almandoz G.O., Ferrario M.E., Ferreyra G.A. Schloss I.R., Esteves J.L., Paparazzo F.E. 2007. The genus Pseudo-nitzschia (Bacillariophyceae) in continental shelf waters of Argentina (Southwestern Atlantic Ocean, 38°-55°S). Harmful Algae 6: 93-103. http://dx.doi.org/10.1016/j.hal.2006.07.003 Anderson J.T., Warren W.G. 1991. Comparison of catch rates among small and large Bongo samplers for Calanus finmarchicus copepodite stages. Can. J. Fish. Aquat. Sci. 48: 303-308. http://dx.doi.org/10.1139/f91-042 Antacli J.C. 2011. Estrategias de vida de los copépodos Drepanopus forcipatus y Calanus australis en relación con los recursos tróficos en la plataforma patagónica austral (Argentina, 47°-55°S). Tesis doctoral, Univ. Nac. Mar del Plata, 199 pp. Antacli J.C., Sabatini M.E., Hernández D. 2010. Estimating copepods' abundance with paired nets: Implications of mesh size for population studies. J. Sea Res. 63: 71-77. http://dx.doi.org/10.1016/j.seares.2009.09.004 Bernard K.S., Froneman P.W. 2002. Mesozooplankton community structure in the Southern ocean upstream of the Prince Edward Islands. Polar Biol. 25: 597-604. Bernard K.S., Froneman P.W. 2003. Mesozooplankton community structure and grazing impact in the Polar Frontal Zone during austral autumn 2002. Polar Biol. 26: 268-275. Bernard K.S., Froneman P.W. 2005. Trophodynamics of selected mesozooplankton in the west-Indian sector of the Polar Frontal Zone, Southern Ocean. Polar Biol. 28(8): 594-606. http://dx.doi.org/10.1007/s00300-005-0728-3 Björnberg T.K.S. 1981. Copepoda. In: Boltovskoy D. (ed.), Atlas del Zooplancton del Atlántico Sudoccidental y Métodos de Trabajo con el Zooplancton Marino. Public. Espec. INIDEP, Mar del Plata, pp. 587-679. Borouche J.M., Saporta G. 1983. L'analyse des donnèes. Presses Universitaires de France, Paris, 126 pp. Boxshall G.A., Halsey S.H. 2004. An introduction to copepod diversity. The Ray Society Series. Ray Society, London, 966 pp. Bradford J.M., Ohman M.D., Jillet J.B. 1988. Larval morphology and development of Neocalanus tonsus, Calanoides macrocarinatus and Calanus australis (Copepoda: Calanoida) in the laboratory. N. Z. J. Mar. Freshw. Res. 22: 301-320. http://dx.doi.org/10.1080/00288330.1988.9516303 Bradford-Grieve J.M. 1999. Copepoda. In: Boltovskoy D. (ed.), South Atlantic Zooplankton. Backhuys Publishers, 2, Leiden, The Netherlands, pp. 869-1098. Bulleri F., Chapman M.G., Underwood A.J. 2005. Intertidal assemblages on seawalls and vertical rocky shores in Sydney Harbour, Australia. Austral Ecol. 30: 655-667. http://dx.doi.org/10.1111/j.1442-9993.2005.01507.x Cefarelli A.O., Ferrario M.E., Almandoz G.O., Atencio A.G., Akselman R., Vernet M. 2010. Diversity of the diatom genus Fragilariopsis in the Argentine Sea and Antarctic waters: morphology, distribution and abundance. Polar Biol. 33: 1463-1484. http://dx.doi.org/10.1007/s00300-010-0794-z Clarke K.R., Gorley R.N. 2001. PRIMER v5: User Manual/Tutorial. Plymouth Routines in Multivariate Ecological Research. PRIMER-E: Plymouth, 91 pp. Clarke K.R., Warwick R.M. 1994. Change in Marine Communities: An Approach to Statistical Analysis and Interpretation. Natural Environment Research Council, Plymouth Marine Laboratory, Plymouth, UK, 144 pp. Di Mauro R., Capitanio F., Vi-as M.D. 2009. Capture efficiency for small dominant mesozooplankters (Copepoda, Appendicularia) off Buenos Aires province (34ºS-41ºS), Argentine sea, using two plankton mesh sizes. Braz. J. Oceanogr. 57(3): 205-214. http://dx.doi.org/10.1590/S1679-87592009000300004 Dugas J.D., Koslow J.A. 1984. Microsetella norvegica: a rare report of a potentially abundant copepod on the Scotian Shelf. Mar. Biol. 84: 131-134. http://dx.doi.org/10.1007/BF00392997 Evans M.S., Sell W.S. 1985. Mesh size and collection characteristics of 50-cm diameter conical plancton nets. Hydrobiologia 122: 97-104. http://dx.doi.org/10.1007/BF00032095 Fish C.J. 1955. Observations on the biology of Microsetella norvegica. Pap. Mar. Biol. Oceanogr. Deep Sea Res. 3(Suppl): 242-249. Gallienne C.P., Robins D.B. 2001. Is Oithona the most important copepod in the world's oceans? J. Plankton Res. 23: 1421-1432. http://dx.doi.org/10.1093/plankt/23.12.1421 Grandori R. 1912. Studi sullo sviluppo larvale dei copepodi pelagici. Redia 8: 440-447. Heron G.A., Bowman T.E. 1971. Postnaupliar developmental stages of the copepod crustaceans Clausocalanus laticeps, C. brevipes, and Ctenocalanus citer (Calanoida: Pseudocalanidae). In: Llano G.U., Wallen I.E. (eds), Biology of the Antartic seas, IV, Union Am. Geophys. 17: 141-165. Hirota R. 1964. Zooplankton investigation in Hiunchi-nada in the Setonaikai (Inland Sea of Japan). I. The seasonal occurrence of copepods at three stations in Hiuchi-nada. J. Oceanogr. Soc. Japan 20: 24-31. Hirota R., Hara M. 1975. Zooplankton investigations in Yatsushiro-Kai, western Kyushu, Japan. Part I. Regional and seasonal occurrences of the important zooplankton. J. Oceanogr. Soc. Japan 31: 115-123. http://dx.doi.org/10.1007/BF02120194 Hopcroft R.R., Roff J.C., Lombard D. 1998. Production of tropical copepods in Kingston Harbour, Jamaica: the importance of small species. Mar. Biol. 130: 593-604. http://dx.doi.org/10.1007/s002270050281 Hulsemann K. 1991. The copepodid stages of Drepanopus forcipatus Giesbrecht, with notes on the genus and a comparison with other members of the family Clausocalanidae (Copepoda, Calanoida). Helgol. Meeresunters. 45: 199-224. http://dx.doi.org/10.1007/BF02365642 Hwang J., Kumar R., Dahms H., Tseng L., Chen Q. 2007. Mesh size affects abundance estimates of Oithona spp. (Copepoda, Cyclopoida). Crustaceana 80: 827-837. http://dx.doi.org/10.1163/156854007781363169 Koski M., Kiørboe T., Takahashi K. 2005. Benthic life in the pelagic: Aggregate encounter and degradation rates by pelagic harpacticoid copepods. Limnol. Oceanogr. 50(4): 1254-1263. http://dx.doi.org/10.4319/lo.2005.50.4.1254 Morales C.E., Torreblanca M.L, Hormazabal S., Correa-Ramírez M., Nu-ez S., Hidalgo P. 2010. Mesoscale structure of copepod assemblages in the coastal transition zone and oceanic waters off central-southern Chile. Prog. Oceanogr. 84: 158-173. http://dx.doi.org/10.1016/j.pocean.2009.12.001 Narcy F. 2010. 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Copyright (c) 2014 Consejo Superior de Investigaciones Científicas (CSIC) https://creativecommons.org/licenses/by/4.0 CC-BY Scientia Marina; Vol. 78 No. 1 (2014); 17-26 Scientia Marina; Vol. 78 Núm. 1 (2014); 17-26 1886-8134 0214-8358 10.3989/scimar.2014.78n1 mesozooplankton microcopepods southern Patagonian shelf size spectra Oithona helgolandica Micosetella norvegica Drepanopus forcipatus mesozooplancton microcopépodos plataforma patagónica austral rango de tamaños info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed article Artículo revisado por pares 2014 ftjscientiamarin https://doi.org/10.3989/scimar.03906.31C https://doi.org/10.3989/scimar.2014.78n1 https://doi.org/10.1016/j.hal.2006.07.003 https://doi.org/10.1139/f91-042 https://doi.org/10.1016/j.seares.2009.09.004 https://doi.org/10.1007/s00300-005-0728-3 2022-03-20T16:31:22Z The copepod community structure, with special emphasis on small-sized species, was studied over the southern Patagonian shelf in late summer 2004, applying the first plankton sampling in the region with a fine-mesh (66 μm) net. The key role of the copepods Drepanopus forcipatus and Calanus australis was confirmed, but also the high abundance and frequency of occurrence of the microcopepods Oithona helgolandica and Microsetella norvegica and of the medium-sized copepod Ctenocalanus vanus were revealed. Copepod community structure was nearly homogenous over the entire study area. Drepanopus forcipatus, O. helgolandica and M. norvegica were identified as the typical species of the region, although secondarily C. australis and Oithona atlantica also contributed significantly to community similarity across the area. The study of interspecific relationships of dominant copepods indicated that D. forcipatus and C. australis were associated positively with O. helgolandica, while C. vanus, and M. norvegica constituted a separate assemblage with Clausocalanus brevipes and O. atlantica. The importance of fine-mesh-size nets for collecting the smaller size fractions of mesozooplankton and for accurately portraying the mesozooplankton assemblage structure in the area is stressed by this study. La estructura de la comunidad de copépodos, con especial énfasis en las especies de pequeño tamaño, se estudió en la plataforma patagónica austral durante el verano tardío de 2004, a partir del primer muestreo de plancton en la región con una red de malla fina (66 μm). Se confirmó el rol clave de las especies Drepanopus forcipatus y Calanus australis, pero al mismo tiempo se evidenció la gran abundancia y frecuencia de ocurrencia de los microcopépodos Oithona helgolandica y Microsetella norvegica y del copépodo de tamaño medio Ctenocalanus vanus. La estructura de la comunidad de copépodos fue aproximadamente homogénea en toda el área de estudio. Drepanopus forcipatus, O. helgolandica y M. norvegica resultaron las especies típicas de la región y, aunque secundariamente, C. australis y Oithona atlantica también contribuyeron significativamente a la similitud en el área. El estudio de las interrelaciones entre las especies dominantes indicó que D. forcipatus y C. australis estuvieron positivamente asociados con O. helgolandica, mientras que C. vanus y M. norvegica conformaron otra asociación con Clausocalanus brevipes y O. atlantica. A partir de este estudio se enfatiza la importancia de las redes de malla fina para colectar las fracciones de tamaño más pequeñas del mesozooplancton y para describir correctamente la estructura de la comunidad mesozooplanctónica en el área. Article in Journal/Newspaper Arctic Copepods Scientia Marina (E-Journal) Argentina Austral Malla ENVELOPE(20.233,20.233,68.826,68.826) Pequeñas ENVELOPE(-67.467,-67.467,-67.583,-67.583) Scientia Marina 78 1 17 26 |