2017
DOI: 10.1186/s41200-017-0114-1
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Medusae and ctenophores from the Bahía Blanca Estuary and neighboring inner shelf (Southwest Atlantic Ocean, Argentina)

Abstract: An updated checklist of medusae and ctenophores is presented for the first time for the area comprised by the Bahía Blanca Estuary, the adjacent shelf El Rincón and Monte Hermoso beach, on the southwest coast of Buenos Aires province (Argentina). The area is highly productive and provides several ecosystem services including fishing and tourism. Updated information on the biodiversity of medusae and ctenophores species is essential for the study area, given that these species can affect ecosystem services. The… Show more

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Cited by 15 publications
(20 citation statements)
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References 31 publications
(25 reference statements)
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“…The occurrence of L . tetraphylla in El Rincón region and massive accumulations in recent years reveal that its abundance distribution is expanding southwards [50]. Changes in the latitudinal distribution and abundance patterns of the species are one of the signals of climate warming, and warm-water species abundances would be positively favored [10,19,51,52].…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…The occurrence of L . tetraphylla in El Rincón region and massive accumulations in recent years reveal that its abundance distribution is expanding southwards [50]. Changes in the latitudinal distribution and abundance patterns of the species are one of the signals of climate warming, and warm-water species abundances would be positively favored [10,19,51,52].…”
Section: Discussionmentioning
confidence: 99%
“…Obelia hydroids, on the other hand, may be benefited by both natural (biotic and abiotic) and man-made substrates [64,68] and by the availability of organic matter and microplankton as food resource [71]. The turbid, shallow, and eutrophic coastal ecosystems encompassed by El Rincón region may widely cover these requirements [50,65,72,73]. Furthermore, this area seems to enclose a proper environment not only for Obelia but also for other meroplanktonic hydromedusan species that may have similar environmental needs [50,65,72,74].…”
Section: Discussionmentioning
confidence: 99%
“…The hauls were done using a plankton net of 200 µm-mesh and 0.30 m diameter with a solid cod end to avoid damage to the specimens. Subsequently, each haul was filtered through a 1.5 mm sieve to remove the predominant mesozooplanktonic predators, such as Parasagitta sp., ichtyoplankton, small jellyfish and ctenophores (Hoffmeyer, 2007;Dutto et al, 2017). Then, the sample was placed in 10 L bottles and transported in a thermal container to maintain the environmental temperature (~ one hour) until arrival at the laboratory.…”
Section: Sampling Procedures and Methodsmentioning
confidence: 99%
“…This result was based on the coastline orientation (E to W) which allows that N winds cause coastal upwellings removing surface waters and producing the emergence of the bottom layer, promoting that medusae inhabiting in it reach the coast (Mianzan & Zamponi, 1988). Extremely high abundances has been commonly reported in the region (Mianzan et al, 2001;Chiaverano et al, 2004) but since the summer 2013, medusae of O. sambaquiensis have not been observed in the coastal waters of Monte Hermoso and surrounding areas (Dutto et al, 2017). Also, a change in the local wind pattern has been perceived by local visitors and reported by media but it has not been studied until now (Figure 2) , and to compare within this period, the wind pattern during summers in which medusae were locally reported with those summers in which medusae were absent according to media reports and own data.…”
Section: Introductionmentioning
confidence: 99%
“…Given that in the last years, specimens of O. sambaquiensis were not found in plankton samples along the coastal area (Dutto et al, 2017;this study), an environmental regulation would be acting on the population dynamic of the species. If medusae were in the water column, the change in the wind pattern would probably prevent medusae reach the coast, but we do not have evidences that this change in wind magnitude is impacting on medusae reproduction or if it could impact it.…”
Section: Wind Pattern Change Along a Period Of Coastal Occurrence Varmentioning
confidence: 99%