Common traits associated with establishment and spread of Lessepsian fishes in the Mediterranean Sea

Arndt, Erik; Schembri, Patrick J.

doi:10.1007/s00227-015-2744-3

Cited by 27 publications

(32 citation statements)

References 70 publications

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“…This might suggest that the more severe seasonality of the Mediterranean (Ben‐Tuvia, ) compared to the Red Sea did not affect the progress of Lessepsians. This is possibly the result of the majority of successful Lessepsians sharing the same sub‐tropical origin (Arndt & Schembri, ).…”

Section: Discussionmentioning

confidence: 99%

“…The invasion is a complex multistage process (Belmaker et al., ), which cannot entirely be explained by a single condition (Kalogirou et al., ). A Red Sea species must overcome several challenges in each of these steps so that it can be introduced and established within the Mediterranean (Arndt & Schembri, ; Mavruk & Avsar, and references therein). Each step of this process may be controlled by different constraints and in this context climatic parameters may particularly affect the establishment and dispersal success of introduced individuals after passing from the canal (Belmaker et al., ).…”

Section: Discussionmentioning

confidence: 99%

“…In contrast, Golani () underlined that the intrusion of Lessepsians was not always connected with the varying temperature conditions. Moreover, Arndt and Schembri () have pointed out that there is a significant parallelism between the intrusion rate of Lessepsians and alterations in canal morphology rather than climatic events. Obviously, the mechanisms underlying the success of Lessepsian migrants appeared to be quite complex to explain with only one factor (Belmaker, Parravicini, & Kulbicki, ; Kalogirou et al., ).…”

Section: Introductionmentioning

confidence: 99%

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The trend of lessepsian fish populations with an emphasis on temperature variations in Iskenderun Bay, the Northeastern Mediterranean

Mavruk

Bengil²,

Yeldan

et al. 2017

Fisheries Oceanography

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The fish assemblages of the Eastern Mediterranean are highly variable owing to the Lessepsian migration. So far, there has been limited discussion about the temporal variation of Lessepsian populations, which may be a key to better understanding the establishment, persistence and spreading dynamics of these species. The objective of this study was, therefore, to develop an understanding of inter‐annual variations of Lessepsian fish populations through investigating the effects of climate conditions. For this purpose, we evaluated the data obtained from the seasonal bottom trawl surveys conducted over the course of 12 years, from 2004 to 2015, at the infra‐littoral zone of Iskenderun Bay. Our results indicated that Lessepsians constituted 27%, 62% and 85% of total teleost fishes in the number of species (LS‐%), biomass (LW‐%) and abundance (LN‐%), respectively. The linear trends showed that the dominance of Lessepsian fishes increased with annual rates of 1.9 (p < .01, LS‐%), 2.77 (p < .01, LW‐%) and 1.43% (p < .05, LN‐%) per year during the study period. In contrast, seasonal trend decomposition based on GAMMs revealed that the true shape of trends was non‐linear. The majority of the new Lessepsians entered the study area after 2009 when warmer conditions prevailed. Those new invaders such as Nemipterus randalli, Pomadasys stridens and Apogon smithi successfully settled in a short time and remarkably altered the composition of fish assemblages after 2010. We found that variations of lessepsian fish assemblages were correlated with the increase of annual minima and average values of sea surface temperature.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The trend of lessepsian fish populations with an emphasis on temperature variations in Iskenderun Bay, the Northeastern Mediterranean

Mavruk

Bengil²,

Yeldan

et al. 2017

Fisheries Oceanography

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“…SSTmax is generally lower in the eastern Mediterranean than in the Red Sea (see Fig. S2.3), and its value in the native range does not predict the establishment success in the Mediterranean (Arndt & Schembri, ). In contrast, Belmaker et al .…”

Section: Discussionmentioning

confidence: 99%

“…Studies addressing the risk posed by alien species aimed at predicting either which species are likely to cross from the Red Sea into the Mediterranean (Belmaker et al ., ) or which species can become established after they crossed into the Mediterranean (Arndt & Schembri, ). Belmaker et al .…”

Section: Introductionmentioning

confidence: 99%

Analysis of Red Sea fish species' introductions into the Mediterranean reveals shifts in introduction patterns

Samaha

Dohna

Bariche

2016

Journal of Biogeography

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Aim The Mediterranean Sea is one of the most threatened marine systems in the world. One of the major threats is the introduction of alien species from the Red Sea through the Suez Canal into the Mediterranean. The aim of our study was to address two interrelated questions, namely which traits of Red Sea fish species are associated with the species' introduction into the Mediterranean Sea and how the introduction patterns changed over time. Location Red Sea and Mediterranean Sea Methods We used Cox regressions to identify traits of Red Sea species that are associated with the rate at which new alien Red Sea species are recorded in the Mediterranean (hazard rate) and to identify groups of species with different temporal trends of their baseline hazard rates. We fitted latent‐variable models to determine whether different trends in baseline hazard rates can be attributed to trends in detection or introduction. Results Our results showed that the highest hazard rate occurred among pelagic species, species living over soft bottoms, species present in small families and species recorded in the Red Sea close to the Suez Canal. We also found that alien species could be separated into three groups with different temporal trends in baseline hazard rates. The different trends were due to changes in introduction rate rather than detection. Two groups with historically low introduction rate showed an increase in introduction rate over time. Main conclusions Our results provide novel biogeographical explanations for introduction patterns that were previously attributed to the effects of sea surface temperature and interspecific competition. The trends uncovered by our analysis indicate that the profile of introduced species is changing with potentially profound consequences for the Mediterranean Sea.

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Trait‐based life strategies, ecological niches, and niche overlap in the nekton of the data‐poor Mediterranean Sea

Koutsidi

Moukas

Tzanatos

2020

Ecology and Evolution

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Biological traits can determine species ecological niches and define species responses to environmental variation. Species have a specific functional position in the biological community, resulting in interactions like interspecific competition. In this study, we used biological traits in order to define the life strategies of 205 nektonic species of the Mediterranean Sea. Furthermore, traits related to resource use were analyzed to determine the level of trait and niche overlap and their relationship to life strategies. Focusing on habitats of importance (Posidonia beds, coralligène formations, and lagoons), we investigated strategies and niches of the species present there. Finally, we examined the life strategy of Lessepsian species and investigated the niche overlap between them and indigenous species. Archetypal analysis indicated the existence of three life histories corresponding to strategies already documented for fish (equilibrium, periodic, and opportunistic), with some species also placed in intermediate positions. Niche overlap was evaluated by multiple correspondence analysis and the generation of a single distance metric between all species pairs. This identified species occupying relatively empty (underexploited) ecological niches, like the Lessepsian species Siganus luridus and S. rivulatus , a finding that can also be associated with their establishment in the Mediterranean. Most Lessepsian species were associated with the opportunistic life history strategy, again an important aspect related to their establishment. Also, we documented that most species occurring in important habitats have a relatively high overlap of niches. No significant differences were found in the life strategies across Mediterranean habitats; however, variation in niche overlap and traits related to habitat use was detected. The findings can be useful to determine theoretical competition between species and to identify empty ecological niches. Fisheries science can also benefit from comprehending the dynamics of competing stocks or predict the responses of data‐poor stocks to anthropogenic stressors from known examples of species with shared life strategies.

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Common traits associated with establishment and spread of Lessepsian fishes in the Mediterranean Sea

Cited by 27 publications

References 70 publications

The trend of lessepsian fish populations with an emphasis on temperature variations in Iskenderun Bay, the Northeastern Mediterranean

The trend of lessepsian fish populations with an emphasis on temperature variations in Iskenderun Bay, the Northeastern Mediterranean

Analysis of Red Sea fish species' introductions into the Mediterranean reveals shifts in introduction patterns

Trait‐based life strategies, ecological niches, and niche overlap in the nekton of the data‐poor Mediterranean Sea

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