Environmental forcing on jellyfish communities in a small temperate estuary

Primo, Ana Lígia; Marques, Sónia Cotrim; Falcão, Joana; Crespo, Daniel; Pardal, Miguel Ângelo; Azeiteiro, Ulisses Miranda

doi:10.1016/j.marenvres.2012.06.009

Cited by 26 publications

(13 citation statements)

References 51 publications

(67 reference statements)

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“…In the Bay of Villefranche, Licandro et al [27] found that the abundance of the most dominant calycophoran siphonophores, in particular, Muggiaea kochi , Chelophyes appendiculata , and Abylopsis tetragona , significantly increased under different salinity optima. In the Mondego estuary, salinity was the main factor affecting jellyfish assemblages, explaining around 20% of the variability observed during summer, being particularly related to siphonophore abundance [86]. Sanvicente-Añorve et al [59] also suggested that even extreme salinity values (>36.5 or <34) might depress siphonophore populations in the coastal area of the southern Mexican Gulf.…”

Section: Discussionmentioning

confidence: 97%

Hydrographic Processes Driven by Seasonal Monsoon System Affect Siphonophore Assemblages in Tropical-Subtropical Waters (Western North Pacific Ocean)

Hsieh

2014

PLoS ONE

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This work is a part of the Taiwan Cooperative Oceanic Fisheries Investigation, the first large scale hydrographic and plankton survey around Taiwan (21–26°N, 119–123°E). The present study examined the influence of hydrodynamic and biological variables driven by monsoon system on the siphonophore assemblages through an annual cycle in 2004. Calycophorans, namely Chelophyes appendiculata, Diphyes chamissonis, Lensia subtiloides, Bassia bassensis, and Muggiaea atlantica, were the most dominant siphonophore species. Maximum abundance of these dominant species generally occurred during the warm period (May and August), while M. atlantica had a significantly peak abundance in February. Although no apparently temporal difference in siphonophore abundance was observed in the study, siphonophore assemblage was more diverse in August than in other sampling times. Result of a cluster analysis indicated that assemblage structure of siphonophores in the waters around Taiwan varied at temporal and spatial scales during the sampling period. The intrusions of the Kuroshio Branch Current and China Coastal Current to the study area play an important role on the transportation of siphonophores. Also, the distribution of siphonophore assemblage was closely related to the hydrographic characteristics, with temperature, chlorophyll a concentration, and zooplankton abundance being the major environmental factors affecting the spatio-temporal variability of siphonophores. This study contributes substantially to the new knowledge of the siphonophore assemblage in the tropical-temperate waters of Taiwan.

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Section: Discussionmentioning

confidence: 97%

Hydrographic Processes Driven by Seasonal Monsoon System Affect Siphonophore Assemblages in Tropical-Subtropical Waters (Western North Pacific Ocean)

Hsieh

2014

PLoS ONE

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“…Siphonophores are generally considered strictly oceanic (Pugh, 1999) and intolerant of low salinity waters (Mackie et al, 1987). However, the neritic M. atlantica can exploit both low salinity (Kitamura et al, 2003;Marques et al, 2008;Primo et al, 2012) and high salinity waters (Licandro et al, 2012). Salinity may however have an indirect effect, representing a proxy for physical processes.…”

Section: Discussionmentioning

confidence: 99%

“…Considering that this species is tolerant of very low salinities (i.e. down to nearly 20; Primo et al, 2012) a negative relationship between low salinity and M. atlantica abundance in spring suggests that anomalies in the usual circulation patterns may have dispersed the locally developing population. The arrival of M. atlantica in the WEC has also been attributed to the intrusion of high salinity Atlantic waters from the southwest (Southward, 1962).…”

Section: Discussionmentioning

confidence: 99%

Long-term variability of the siphonophores Muggiaea atlantica and M. kochi in the Western English Channel

Blackett

Licandro

Coombs

et al. 2014

Progress in Oceanography

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a b s t r a c tWe investigated long-term variability of the calycophoran siphonophores Muggiaea atlantica and Muggiaea kochi in the Western English Channel (WEC) between 1930 and 2011. Our aims were to describe long-term changes in abundance and temporal distribution in relation to local environmental dynamics. In order to better understand mechanisms that regulate the species' populations, we identified periods that were characteristic of in situ population growth and the environmental optima associated with these events. Our results show that between 1930 and the 1960s both M. atlantica and M. kochi were transient components of the WEC ecosystem. In the late 1960s M. atlantica, successfully established a resident population in the WEC, while the occurrence of M. kochi became increasingly sporadic. Once established as a resident species, the seasonal abundance and distribution of M. atlantica increased. Analysis of environmental conditions associated with in situ population growth revealed that temperature and prey were key determinants of the seasonal distribution and abundance of M. atlantica. Salinity was shown to have an indirect effect, likely representing a proxy for water circulation in the WEC. Anomalies in the seasonal cycle of salinity, indicating deviation from the usual circulation pattern in the WEC, were negatively associated with in situ growth, suggesting dispersal of the locally developing M. atlantica population. However, our findings identified complexity in the relationship between characteristics of the environment and M. atlantica variability. The transition from a period of transiency to residency was tentatively attributed to structural changes in the WEC ecosystem that occurred under the forcing of wider-scale hydroclimatic changes.

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“…The BioEnv method was used to identify the physicochemical parameters that have a strong correlation with macroinvertebrate communities and find the best explanation of spatial patterns [Ignatiades et al 2009]. DistLM (linear model based on distance) was applied to obtain the value of permutational regression R 2 , of greater importance, between the matrices of biological variables and physicochemical parameters of water individually and in groups, in order to determine the contribution relative of these variables on the structure of benthic macroinvertebrate communities [Primo et al 2012]. The analysis of BEST with R 2 as a selection criterion was used to determine which of the physicochemical parameters of the water better explain the composition pattern of the macroinvertebrate community.…”

Section: Statistical Data Analysismentioning

confidence: 99%

Assessment of the Aquatic Environment Quality of High Andean Lagoons using Multivariate Statistical Methods in Two Contrasting Climatic Periods

et al. 2018

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The quality of the aquatic environment of high Andean lagoons was evaluated by means of multivariate statistical methods in two contrasting climatic periods. The water samples and benthic macroinvertebrates were collected in 22 sampling sites during the rainy and dry seasons. In each lagoon DO, DTS, EC, temperature and pH were determined in situ. The results revealed that the physicochemical parameters comply with the environmental quality standards for water, except COD and BOD 5. In the PCA of the physicochemical parameters, the first two axes explained 73% of the total variation. The gradual analysis in pairs showed significant differences. The SIMPER analysis determined an average of four families of benthic macroinvertebrates per lagoon that showed more than 70% contribution. The ANOSIM revealed that Tragadero lagoon differs significantly from the others. The DistLM showed a value of 0.46 of coefficient of determination. Therefore, the quality of the environment of high Andean lagoons evaluated by means of multivariate statistical methods presents important differences or dissimilarities not only in the physicochemical characteristics of the water, but also in the composition of the benthic macroinvertebrate communities.

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Environmental forcing on jellyfish communities in a small temperate estuary

Cited by 26 publications

References 51 publications

Hydrographic Processes Driven by Seasonal Monsoon System Affect Siphonophore Assemblages in Tropical-Subtropical Waters (Western North Pacific Ocean)

Hydrographic Processes Driven by Seasonal Monsoon System Affect Siphonophore Assemblages in Tropical-Subtropical Waters (Western North Pacific Ocean)

Long-term variability of the siphonophores Muggiaea atlantica and M. kochi in the Western English Channel

Assessment of the Aquatic Environment Quality of High Andean Lagoons using Multivariate Statistical Methods in Two Contrasting Climatic Periods

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