Zooplankton in Adriatic port environments: Indigenous communities and non-indigenous species

Vidjak, Olja; Bojanić, Natalia; Olazabal, Alessandra de; Benzi, Margherita; Brautović, Igor; Camatti, Elisa; Hure, Marijana; Lipej, Lovrenc; Pansera, Marco; Pećarević, Marijana; Pestorić, Branka; Pigozzi, Silvia; Tirelli, Valentina

doi:10.1016/j.marpolbul.2018.06.055

Cited by 29 publications

(21 citation statements)

References 55 publications

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“…In the Venice lagoon, A. tonsa is currently considered a stabilized species. The most plausible hypotheses about the introduction of this species are that it was brought into the outer port area thanks to its ability to produce resting eggs, then via ballast water from ships [51][52][53], or released by aquaculture, fisheries, or pet industries [54].…”

Section: Discussionmentioning

confidence: 99%

“…The reports of new NIS in the Venice lagoon-the copepods Pseudiaptomus marinus Sato (1913), Oithona davisae Ferrari F.D. and Orsi (1984), and ctenophore Mnemiopsis leidyi A. Agassiz (1865) [53,78]-are also very recent. The latter, reported for the first time in the lagoon in 2016, is still present throughout the year, and its strong predator characteristics on the planktonic component [78] could revolutionize again the structure of the Acartia genus and in general of the zooplankton communities in a few years.…”

Section: Discussionmentioning

confidence: 99%

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The Copepod Acartia tonsa Dana in a Microtidal Mediterranean Lagoon: History of a Successful Invasion

Camatti

Pansera

Bergamasco

2019

Water

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The Lagoon of Venice has been recognized as a hot spot for the introduction of nonindigenous species. Several anthropogenic factors as well as environmental stressors concurred to make this ecosystem ideal for invasion. Given the zooplankton ecological relevance related to the role in the marine trophic network, changes in the community have implications for environmental management and ecosystem services. This work aims to depict the relevant steps of the history of invasion of the copepod Acartia tonsa in the Venice lagoon, providing a recent picture of its distribution, mainly compared to congeneric residents. In this work, four datasets of mesozooplankton were examined. The four datasets covered a period from 1975 to 2017 and were used to investigate temporal trends as well as the changes in coexistence patterns among the Acartia species before and after A. tonsa settlement. Spatial distribution of A. tonsa was found to be significantly associated with temperature, phytoplankton, particulate organic carbon (POC), chlorophyll a, and counter gradient of salinity, confirming that A. tonsa is an opportunistic tolerant species. As for previously dominant species, Paracartia latisetosa almost disappeared, and Acartia margalefi was not completely excluded. In 2014-2017, A. tonsa was found to be the dominant Acartia species in the lagoon. dominant zooplankton species during summer [14], provided that high concentrations of particulate organic carbon and particulate organic matter are available. In fact, the life cycle of this copepod is strictly dependent on the quantity of the available food-the larger the trophic supplies are, the more accelerated its growth rate is [15][16][17].The Lagoon of Venice, a large Mediterranean lagoon located in the northwest coast of the Adriatic Sea, presents marked habitat heterogeneity, and the classification of its habitats is still a matter of debate [18,19]. The lagoon is considered the main hotspot for invasive species in the whole Italian coast with the presence of more than 60 NIS, including 29 invertebrates and 34 macrophyte species among which A. tonsa also appears [20][21][22][23][24][25]. The lagoon is also part of the Long-Term Ecological Research (LTER) network (http://www.lteritalia.it), a global network of research sites located in a wide array of ecosystems. LTER research is a fundamental tool for monitoring environmental changes over time. Zooplankton communities exhibit an intrinsically high variability in transitional environments, and the elucidation of coexistence patterns is a critical question in ecology as well as in accounting for differences in abundances among species. In addition to zooplankton ecological relevance related to the role in the marine trophic network, changes in the community have implications for environmental management and ecosystem services.This work describes relevant steps in the history of invasion and establishment of A. tonsa in the Lagoon of Venice with respect to local stressors. This work provides a recent picture of its distributi...

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The Copepod Acartia tonsa Dana in a Microtidal Mediterranean Lagoon: History of a Successful Invasion

Camatti

Pansera

Bergamasco

2019

Water

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“…However, the authors reported the presence of the species in all Italian and Slovenian ports surveyed, as well as in the Port of Pula in Croatia. Furthermore, VIDJAK et al (2019) assessing zooplankton diversity in eastern Adriatic ports, including the Ports of Pula, Šibenik and Split, did not also report M. gigas larvae. It should be emphasized, though, that their results were based on micro-scopic analysis, which are not able to accurately identify bivalve larvae to species level.…”

Section: Resultsmentioning

confidence: 96%

Rasprostranjenost nezavičajne vrste kamenice Magallana gigas(Thunberg, 1793) duž istočne obale Jadrana

Ezgeta-Balić

Šegvić-Bubić

Stagličić

et al. 2019

Acta Adriat. (Online)

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The aim of this research was to summarize existing and novel data on the distribution of M. gigas in coastal areas of the Eastern Adriatic and to provide a baseline for the future monitoring and assessment programmes of the species. Distribution of M. gigas was determined by three different methods: (i) a visual census of the presence of M. gigas specimens in the medio-littoral zone; (ii) DNA identification of M. gigas larvae in the water column; and (iii) the presence of M. gigas in the subtidal zone at depth between 25 and 40 m. Magallana gigas has a well-established population in the medio-littoral zone of natural and anthropogenic habitats along the coast of the North-eastern Adriatic Sea (west coast of Istria peninsula), but it is not present in the deeper layers . In the Central-eastern and South-eastern Adriatic Sea, the species was either absent or sporadically recorded with no evidence of fully established populations. Considering the great invasion success of M. gigas worldwide and effects that this species could have on the invaded ecosystem (e.g. competition for food and space with native species), detailed future monitoring is needed for the Eastern Adriatic Sea.

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“…However, the presence of the international harbour in the Izmir Bay suggests that the individuals may have been transported by ballast waters from different regions and may have dispersed from the bay to the adjacent stations such as the Karaburun and Ildır coasts. In many studies, it is emphasized that the main route of this species is ballast waters (Cordell, Bollens, Draheim, & Systema, ; Cornils & Wend‐Heckmann, ; Vidjak et al, ; Yıldız et al, ). The invasive O. davisae has successfully settled in transitional ecosystems, such as Lakes Faro and Ganziri and the Golden Horn Estuary (Isinibilir, Svetlichny, & Hubareva, ; Zagami et al, ), and has dominated zooplankton communities with their increasing numbers in certain periods (Zagami et al, ).…”

Section: Discussionmentioning

confidence: 99%

“…Few specimens of O. davisae were observed in 2008 in Marmara Sea (Kurt, ), and a high abundance of the species was reported in September 2014 in Büyükçekmece Bay of the Marmara Sea (Doğan & İşinibilir Okyar, ). This species was recognized in 2000 in the Barcelona Port (Razouls et al, –2019; Saiz et al, ) in the western Mediterranean Sea, and it was recently reported in Lakes Faro and Ganzirri in the central Mediterranean Sea (Zagami et al, ) and in the Venice Port in the eastern Mediterranean Sea (Vidjak et al, ).…”

Section: Introductionmentioning

confidence: 92%

First distribution record of the invasive copepod Oithona davisae Ferrari and Orsi, 1984, in the coastal waters of the Aegean Sea

Kurt

Beşiktepe

2019

Marine Ecology

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The occurrence of the invasive nonindigenous copepod Oithona davisae Ferrari and Orsi, 1984, is reported for the first time in the Aegean Sea. The data we collected in August 2017 from 14 stations along the Turkish coast of the Aegean Sea reveal the spatial distribution of O. davisae between the openning of the Dardanelles Strait in the north and the Izmir Bay in the south. The O. davisae individuals, in seven mesozooplankton samples collected from a single station, were consistently found in the inner part of the Izmir Bay from April 2015‐October 2016. The abundance of female O. davisae ranged from 4 ind./m3 in April 2015 to 31,524 ind./m3 in July 2016 and contributed to the total oithonid female population by 10.8% in April 2015 and 92.8% in September 2016. Our results show that this species is well established in the inner part of Izmir Bay and that it has become a permanent component of the copepod community in the area.

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Zooplankton in Adriatic port environments: Indigenous communities and non-indigenous species

Cited by 29 publications

References 55 publications

The Copepod Acartia tonsa Dana in a Microtidal Mediterranean Lagoon: History of a Successful Invasion

The Copepod Acartia tonsa Dana in a Microtidal Mediterranean Lagoon: History of a Successful Invasion

Rasprostranjenost nezavičajne vrste kamenice Magallana gigas(Thunberg, 1793) duž istočne obale Jadrana

First distribution record of the invasive copepod Oithona davisae Ferrari and Orsi, 1984, in the coastal waters of the Aegean Sea

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