Additional record of the non-indigenous copepod Pseudodiaptomus marinus (Sato, 1913) in the Adriatic Sea (original) (raw)
Related papers
The Distribution of Pseudodiaptomus marinus in European and Neighbouring Waters—A Rolling Review
Journal of Marine Science and Engineering
Among non-native copepods, the calanoid Pseudodiaptomus marinus Sato, 1913 is the species probably spreading at the fastest pace in European and neighbouring waters since its first record in the Adriatic Sea in 2007. In this contribution, we provide an update on the distribution of P. marinus in the Mediterranean and Black Seas, along the Atlantic coasts of Europe, in the English Channel and in the southern North Sea. Starting from a previous distribution overview, we include here original and recently (2019–2023) published data to show the novel introduction of this species in different geographical areas, and its secondary spreading in already colonised regions. The picture drawn in this work confirms the strong ability of P. marinus to settle in environments characterised by extremely diverse abiotic conditions, and to take advantage of different vectors of introduction. The data presented allow speculations on realistic future introductions of P. marinus and on the potential ext...
STUDIES ON COPEPODA IN BAY OF KOTOR -COASTAL WATERS OF SOUTHERN ADRIATIC
Natura Montenegrina, 2012
The species composition and horizontal distribution of Copepoda were studied from January to December 2004 in the closed coastal waters of Bay of Kotor (southern Adriatic). The research was done at 3 stations, three along the very shore, in the immediate vicinity of shellfish farms, and four in deeper water. 42 species of Copepoda were identified, and in the same time the main hydrographic parameters (TºC, ‰, pH, O 2 mL⁄L, O 2 %, transparency according to Secchi, color of the sea according to Forell) were measured and analyzed. The dominant species: Paracalanus parvus (Claus), Centropages kröyeri Giesbrecht, Acartia clausi Giesbrecht, Oithona nana (Giesbrecht), Microsetella norvegica (Boeck), Euterpina acutifrons (Dana), Oncaea media Giesbrecht and Oncaea subtilis Giesbrecht, participated with 39.6% in the total abundance of all Copepoda.
Aquatic Invasions, 2012
The presence of the demersal Asian copepod Pseudodiaptomus marinus is reported for the first time in the southern bight of the North Sea, in both Calais harbour and the coastal waters off Gravelines, France. This is the first record of P. marinus in the Atlantic Ocean sector and the North Sea area. The species was . The very low number of collected individuals (0.2 to 4.0 ind.m -3 ) and the capture of only two ovigerous females and of a few numbers of copepodid CV stages suggest that the species survives and actually reproduces in both sites but does not manage to develop an abundant population. The presence of P. marinus in Calais harbour and coastal waters of the southern North Sea supports recent observations of other Asian species in the same area and suggests a passive transport via ship's ballast waters.
Quantitative variability of the copepod assemblages in the northern Adriatic Sea from 1993 to 1997
Estuarine Coastal and Shelf Science, 2007
Quantitative variability of the copepod assemblages in the northern Adriatic Sea was investigated at two stations, during 43 cruises, from January 1993 to October 1997. Samples were taken at 0.5, 10, and 20 m, as well as near the bottom, using 5-l Niskin bottles. For inter-annual variation in the density of copepod assemblages data were presented as total number of nauplii and copepodites with adult copepods of the following groups: Calanoida, Cyclopoida-oithonids, Cyclopoida-oncaeids and Harpacticoida. Moreover, hydrographic conditions, both fractions of phytoplankton, non-loricate ciliates and tintinnids were taken into consideration. Nauplii are the most numerous fraction at both stations with an average over 74% in the total number of all copepod groups. Their numbers were significantly higher at the western eutrophic station, while at the eastern oligotrophic station, an absolute maximum of 693 ind. l−1 was noted. The maximum values of calanoids and oithonids occur generally du...
2010
The species composition and horizontal distribution of Copepoda were studied from January to December 2004 in the closed coastal waters of southern Adriatic (Bay of Kotor). The research was done at 3 stations, three along the very shore, in the immediate vicinity of shellfish farms, and four in deeper water 42 species of Copepoda were identified, and in the same time the main hydrographic parameters (TºC, ‰, pH, O 2 mL⁄L, O 2 %, transparency according to S e c c h i , color of the sea according to F o r e l l) were measured and analyzed. The dominant species: Paracalanus parvus (Claus), Centropages kröyeri Giesbrecht, Acartia clausi Giesbrecht, Oithona nana (Giesbrecht), Microsetella norvegica (Boeck), Euterpina acutifrons (Dana), Oncaea media Giesbrecht and Oncaea subtilis Giesbrecht, participated with 39.6% in the total abundance of all Copepoda. After our data were compared with the results of previous studies, we concluded that the number of taxa decreases from the open sea to the inner waters of the bay, and that there are two characteristic maximums of abundance, in spring and summer. The first one was induced by the increased abundance of Copepoda, while the second one appears in August and is caused by the dominance of Cladocera, especially the species Penilia avirostris Dana. Similar data are cited by authors for the coastal zones of other seas in Mediterranean, as well as some similar regions of World's oceans situated in subtropical temperature zones.
BioInvasions Records, 2018
The population structure of the non-indigenous calanoid copepod Pseudodiaptomus marinus (Sato, 1913) in the Belgian part of the North Sea (BPNS) is reported for the first time. Detailed P. marinus abundance data including sex and age class of the individuals was gathered on a monthly basis from February 2015 to February 2016 at six sites within the BPNS and Belgian harbors. Relevant environmental variables were analysed to identify potential drivers explaining the population structure of P. marinus within the BPNS. The abundances found were unexpectedly high, with peak densities of up to 560 ± 163 ind.m-3. Even though P. marinus was found in all stations sampled, large spatial and temporal differences were found in the abundance of this species. P. marinus population structure was best explained by water temperature and chlorophyll a concentrations, while salinity and concentrations of dissolved inorganic nitrogen did not influence the distribution. The reported high abundances of the species, especially in the harbor of Zeebrugge, together with the high relative abundances of copepodites indicate that the species is able to reproduce within the BPNS and Belgian harbors, possibly leading to an established, permanent population. It is crucial to study the distribution of this species for a longer period in order to determine the possible establishment of this species in the BPNS and consequences for local planktonic populations.
Spreading factors of a globally invading coastal copepod
Mediterranean Marine Science, 2015
The Mediterranean Sea is one of the most affected areas by alien invasions, which are continuously increasing due to the intense human activities and environmental changes that favor the introduction of species previously unable to colonize the basin. This is the case of the copepods of the genus Pseudodiaptomus, first described in the Indian Ocean and considered as one of the most resistant to unfavorable conditions but never recorded in the Mediterranean until 2011 though present in adjacent seas. Pseudodiaptomus marinus, in particular, is common in shallow marine-brackish waters and is one of the species often found in ballast waters and in aquaculture plants. Native of Japan, it has started spreading since 1950s, and its populations have established in several harbors, eutrophic inlets, and lagoons along the coasts of the Pacific and Indian Oceans. In the last few years, P. marinus has been increasingly reported in European Seas (Mediterranean Sea and North Sea). In this article, we review the invasion history of this species with a special emphasis on its records in the Mediterranean Sea, and its occurrence and establishment in Sicilian waters. We also compare the biological traits and population dynamics of P. marinus with those of other representative of the genus and discuss about the possible mechanisms of introduction in new environments. The aim of this work is to understand the reasons of successful invasion of P. marinus and the environmental and biological factors that may lead to its further biogeographic expansion.
Russian Journal of Biological Invasions, 2017
⎯The population density and distribution of copepod Pseudodiaptomus inopinus Burckhardt, 1913 were studied in Peter the Great Bay (the mouth of the Razdolnaya River of Amur Bay and Posyet Bay). This species is new in the fauna of this part of the Sea of Japan. The first record of the species with density of 225 ind./m 3 was reported in the mouth of the Razdolnaya River in August 2005. The highest density of this species (up to 354 ind./m 3) was reported in the mouth of the Razdolnaya River in August 2015. This species was likely brought with the ballast water of commercial vessels. The increase in the share of P. inopinus in the total zooplankton abundance from 3 to 7% in the period of 2005-2015 indicated its gradual naturalization in the ecosystem.