Environmental patterns and biomass distribution of gelatinous macrozooplankton. Three study cases in the South-western Atlantic Ocean

Mianzán, Hermes; Guerrero, Ricardo

doi:10.3989/scimar.2000.64s1215

Cited by 77 publications

(68 citation statements)

References 31 publications

(39 reference statements)

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“…obs.) and may dominate macroplanktonic biomass during the Spring-Summer coastal upwelling near Cape Santa Marta Grande, Santa Catarina (MIANZAN & GUERRERO 2000). Apparently, its abundance is associated with surface water temperatures of 20-21°C, which is near the mean winter temperature in our study area (19.5°C), when most individuals were captured.…”

Section: Q U a D R U M A N U Smentioning

confidence: 94%

“…However, the shape of the few lasting tentacular bulbs and the absence of excretory pores on them are as in A. forskalea Péron & Lesueur, 1810(BOUILLON 1999, the only species of the genus recorded in Brazil (MIGOTTO et al 2002). The individuals of Aurelia Péron & Lesueur, 1810 were also not determined to spe-variety of methods have been used, including large pelagic nets (HAY et al 1990, PAGÈS et al 1996, MIANZAN & GUERRERO 2000, SUCHMAN & BRODEUR 2005, individual counts in situ in scuba diving (ZAVODNIK 1987, MALEJ 1989, submersibles (e.g. VINOGRADV et al 1985, VERESHCHAKA & VINOGRADOV 1999, underwater videos (ALVAREZ COLOMBO et al 2009), surface counts (GOMEZ-AGUIRRE 1980, PITT & KINGSFORD 2003, DOYLE et al 2007, aerial photography (GRAHAM et al 2003), acoustic (ALVAREZ COLOMBO et al 2003) and demersal fishing gears (BRODEUR et al 1999, 2002, GRAHAM 2001, used opportunistically in this study to take advantage of material collected by other researchers.…”

Section: Q U a D R U M A N U Smentioning

confidence: 99%

“…The former is found from São Paulo to Argentina; it is well-known for causing skin irritation and is often very abundant (VANNUCCI 1951, ZAMPONI & FACAL 1987, MIANZAN & GUERRERO 2000, NAGATA et al 2009). The latter (R. atlantica), noted since the 1970s (MOREIRA 1975) in the southwestern Atlantic Ocean, was recorded in São Paulo and southern coastal Brazil (NAVAS-PEREIRA 1981, GOY 1979, NOGUEIRA JR & HADDAD 2006a).…”

Section: Q U a D R U M A N U Smentioning

confidence: 99%

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Seasonal variation of macromedusae (Cnidaria) at North Bay, Florianópolis, southern Brazil

Júnior¹,

Nagata²,

Haddad³

2010

Zoologia (Curitiba, Impr.)

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Seasonal variation of large medusae abundance and biomass was studied in the North Bay, Santa Catarina, southern Brazil (27°30'S, 48° 32'W), from February to December 2005. Collecting was conducted seasonally with the help of fishing bottom trawl in 30-minute sections (12 in summer, 18 in each of the remaining seasons) in six stations, totaling 66 samples. Eight species were found: the hydrozoans Aequorea sp., Olindias sambaquiensis Müller, 1861, and Rhacostoma atlantica L. Agassiz, 1850; the cubozoans Chiropsalmus quadrumanus (Müller, 1859) and Tamoya haplonema Müller, 1859, and the scyphozoans Aurelia sp., Chrysaora lactea Eschscholtz, 1829 and Lychnorhiza lucerna Haeckel, 1880. Capture rates were low, up to 38 indiv. ha-1, and only ~47% of the samples were positive for jellyfish, comprising 206 individuals. Medusae abundance and species richness clearly changed from one season to another, but did not vary between the sites. Higher species richness (7 out of 8) and greater abundances were recorded during the fall (~60% and 72% of all medusae individuals and biomass respectively). Specific frequency of capture varied from 1.5 to 29% and C. lactea was the only species found in more than 25% of the samples. The three most common species dominated in different periods of the year: C. lactea during fall (78% of individuals and 60% of biomass), R. atlantica during winter (90% of individuals and 17% of biomass), and O. sambaquiensis in spring (78% of individuals and 40% of biomass). Only two individuals were caught during summer, one C. lactea and one R. atlantica. The results offer a general picture of the distribution of the macromedusae in the North Bay, but a continuous monitoring is desirable for a more detailed knowledge on the jellyfish dynamics in the Brazilian coastal waters

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Section: Q U a D R U M A N U Smentioning

confidence: 94%

Section: Q U a D R U M A N U Smentioning

confidence: 99%

Section: Q U a D R U M A N U Smentioning

confidence: 99%

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Seasonal variation of macromedusae (Cnidaria) at North Bay, Florianópolis, southern Brazil

Júnior¹,

Nagata²,

Haddad³

2010

Zoologia (Curitiba, Impr.)

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“…This process has already been described by MIANZAN and GUERRERO (2000) for this same region, highlighting the prevalence of hydromedusae Olindias sambaquiensis in the waters closer to the coast. This species shows a preference for warmer waters (22 to 23°C) and could become concentrated in this narrow column of superficial water.…”

Section: Introductionmentioning

confidence: 83%

Report of an outbreak of stings caused by Olindias sambaquiensis Muller, 1861 (Cnidaria: hydrozoa) in Southern Brazil

2011

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“…However, temporal variations in copepod abundance may be explained not only by the availability of phytoplankton (bottom-up mechanism) but also by predation. In the study area, potential predators such as ctenophores and chaetognaths are very abundant (Mianzán and Guerrero 2000), and there is a high abundance of anchovy larvae , Spinelli et al 2012. On the other hand, Calbet et al (2001) studied the seasonal succession of copepods in the coastal zone off Blanes (northwestern Mediterranean) and found differences in succession when compared to other coastal areas of the Mediterranean.…”

Section: Discussionmentioning

confidence: 99%

Diversity of copepods in Atlantic Patagonian coastal waters throughout an annual cycle

Spinelli

Gonçalves²,

Villafañe³

et al. 2016

Cienc. Mar.

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ABSTRACT. The aim of this study is to analyze the annual zooplankton succession at a coastal station in Patagonia (Argentina), with special emphasis on copepods and their potential preys, using solar radiation and temperature as environmental factors. The annual plankton cycle exhibited autumn/winter and spring/summer phases. During the autumn/winter phase, low temperature and radiation were correlated with higher diatom abundance and copepod diversity. This period was characterized by a dominant classical herbivorous food web in which the large copepod Calanoides carinatus dominated the community. On the contrary, during the spring/summer period, with high radiation and temperature levels, flagellates were the dominant food available for zooplankton and correlated with smaller species of copepods such as the harpacticoid Euterpina acutifrons. Also, intensive reproduction of the small copepods E. acutifrons and Paracalanus parvus occurred mainly in summer. On the other hand, high species diversity was found in winter when the ultraviolet radiation was low. The temporal pattern of the copepods observed in our study was explained by food availability and environmental factors (temperature and solar radiation), although other factors such as predator abundance may also be important in modulating the community. Our results show the importance of copepod abundance dynamics and highlights their key role in the pelagic food web in northern Patagonian coastal waters.Key words: zooplankton, harpacticoid copepods, Argentinean Sea, phytoplankton.RESUMEN. El objetivo de este estudio es analizar la sucesión anual del zooplancton en una estación costera en la Patagonia (Argentina), con especial énfasis en copépodos y sus posibles presas, en relación con la radiación solar y la temperatura como factores ambientales. El ciclo anual del plancton mostró dos periodos, otoño/invierno y primavera/verano. Durante el periodo otoño/invierno, la baja temperatura y la radiación se correlacionaron con la mayor abundancia de diatomeas y la mayor diversidad de copépodos. Este periodo se caracterizó por la dominancia de la cadena clásica herbívora, y el copépodo grande Calanoides carinatus dominó la comunidad. Por el contrario, durante el periodo de primavera/verano, con alta radiación y mayores niveles de temperatura, los flagelados fueron el alimento disponible para el zooplancton y se correlacionaron con las especies pequeñas de copépodos como el harpacticoideo Euterpina acutifrons. Además, la reproducción intensiva de los copépodos pequeños E. acutifrons y Paracalanus parvus se llevó a cabo principalmente en verano. Por otro lado, se encontró una alta diversidad de especies en invierno, cuando la radiación ultravioleta fue baja. El patrón temporal de los copépodos observado en nuestro estudio fue explicado por la disponibilidad de alimento y los factores ambientales (temperatura y radiación solar), aunque otros factores tales como la abundancia de los depredadores pueden ser también importantes en la modulación de la comunidad. Nuestros ...

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Environmental patterns and biomass distribution of gelatinous macrozooplankton. Three study cases in the South-western Atlantic Ocean

Cited by 77 publications

References 31 publications

Seasonal variation of macromedusae (Cnidaria) at North Bay, Florianópolis, southern Brazil

Seasonal variation of macromedusae (Cnidaria) at North Bay, Florianópolis, southern Brazil

Report of an outbreak of stings caused by Olindias sambaquiensis Muller, 1861 (Cnidaria: hydrozoa) in Southern Brazil

Diversity of copepods in Atlantic Patagonian coastal waters throughout an annual cycle

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