V. Gerovasileiou et al.: New Mediterranean Biodiversity Records (July, 2017)

A, COLLECTIVE ARTICLE

doi:10.12681/mms.13771

Cited by 46 publications

(8 citation statements)

References 45 publications

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“…The increasing incidences of fish-farm attacks by the Mediterranean monk seal in recent years were also reported by fish farmers in the Muğla region. The last study also verified this phenomenon with six sightings of monk seals from three fish farms in Muğla and a single specimen from one fish farm in the Izmir region (Gerovasileiou et al 2017). Previously, a total of 40 attacks on 11 fish farms in the Turkish Aegean Sea between 1992 and 2000, which resulted in damage to cage nets and the escape of farmed fishes, have been reported by Güçlüsoy and Savas (2003).…”

Section: Discussionsupporting

confidence: 55%

Determining potential conflicts between small-scale fisheries and sea-cage fish farms in the Aegean Sea

Akyol¹,

Özgül²,

Şen³

et al. 2019

Acta Ichthyol. Piscat.

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Background. Fish farms attract both juvenile and adult wild fishes in great numbers and diversity. These wild fishes also become an easy target stock for local fishers, both professional and recreational. There are three groups of interest in this study, the fish farmers, small-scale fishermen (professional), and recreational fishers (mostly anglers but also spear fishers). This study was intended to determine conflicts derived from the adverse social and bioecological interactions from the perspective of both local fishermen and fish farmers and to determine the observed incidence of predators. Material and methods. In this study, 48 randomly selected fish farms, 28 fishery cooperatives, and 33 fishing ports located close to aquaculture areas were visited for face-to-face interviews with the fishermen of small-scale fisheries (SSF) between July 2015 and July 2017. The main purpose of the survey questionnaire was to ask SSF fishermen for their opinion about offshore aquaculture and vice versa-ask the fish farmers about SSF, emphasizing issues potentially creating problems. Data were collected mainly on sociodemographic profiles, current problems, reciprocal conflict issues, the impact of offshore fish farming on SSF activities, and on bioecological interactions such as predator attacks and problems with farm fish escapes. Results. Approximately 77% of fishermen in Izmir and 71% of fishermen in Muğla declared that they had problems with the sea-cage fish farms. On the other hand, 40% of fish farmers in Izmir and 54% of fish farmers in Muğla reported problems with local SSF. The fishermen believe that in recent years, Mediterranean monk seal (Monachus monachus), sea turtle (Caretta caretta), and invasive fish (pufferfish, etc.) populations have been increasing in Muğla. Additionally, 46% of Muğla fish farmers and 60% of Izmir fish farmers acknowledged cases of fishes escaping from sea-cages. In terms of the predators, 84% of Muğla and 75% of Izmir's fishermen expressed their concerns regarding predator attacks on the sea-cage farms. Conclusion. Further studies, based on socioeconomic issues, are needed for better understanding the dimensions of incomes and economic losses of SSF and cooperation issues in the area where the interaction is high. We suggest that all stakeholders, small-scale fishermen, in particular, must be integrated with a management plan, and the cooperation among both fishing groups should be encouraged.

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Section: Discussionsupporting

confidence: 55%

Determining potential conflicts between small-scale fisheries and sea-cage fish farms in the Aegean Sea

Akyol¹,

Özgül²,

Şen³

et al. 2019

Acta Ichthyol. Piscat.

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“…Although it is of high interest, the marine biodiversity of Cyprus is poorly known especially concerning marine invertebrates. The number of decapods recorded until recently from Cyprus reached 161 species (e.g., Gerovasileiou et al, 2017;Ulman et al, 2017). As it was previously noted the low recorded number of species from Cyprus is primarily attributed to the fact that there is a lack of knowledge due to inadequacy in systematic sampling in a wide range of marine habitats.…”

Section: Niki Chartosia and Marilena Theodosioumentioning

confidence: 99%

New Mediterranean Biodiversity Records (July 2018)

et al. 2018

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In the present article, new records are given for 15 species (4 native and 9 alien and 2 cryptogenic), belonging to 6 Phyla (i.e. Chlorophyta, Ctenophora, Cnidaria, Mollusca, Arthropoda, and Chordata), from 10 Mediterranean countries: Morocco: the finding of the crab Callinectes sapidus represents the westernmost one of the species in the Mediterranean; Italy: first records of the nudibranch Polycera hedgpethi from the harbour of La Spezia, and first finding of the invasive ctenophore Mnemiopsis leidyi in the Fiora River; Tunisia: Caulerpa taxifolia var. distichophylla is recorded for the first time, showing an even wider distribution in the Mediterranean; Greece: the finding of the jellyfish Pelagia benovici represents the first record of the species in the Ionian Sea, while the finding of the smallscale codlet Bregmaceros nectabanus in the Ionian Sea is another interesting first report for the area; Malta: the cryptogenic scleractinian coral Oculina patagonica was recorded; Slovenia: the parasitic copepod Demoleus heptapus was recorded from a sixgill bluntnose shark, Hexanchus griseus; Croatia: the Lessepsian cephalaspidean mollusc Haminoea cyanomarginata is recorded for the first time from the area; Bulgaria: the Asian date mussel Arcuatula senhousia was recorded from the Black Sea; Cyprus: the Lessepsian gastropod Viriola sp. [cf. corrugata) was recorded for the first time from the area, while two decapod species were recorded also for the first time from Cyprus, i.e. the caridean shrimp Pasiphaea sivado and the anomuran Munida curvimana; Turkey: the acari Lohmannella falcata is recorded for the first time from Antalya and the Lessepsian fish Priacanthus sagittarius in the Levantine coasts of Turkey (off Hatay/Arsuz) showing that this species has extended its range in a very short time.

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“…The UBPC started as a biotechnology multi-use infrastructure and the instruments that were installed therein were for the needs of the local environmental monitoring. However, because of the shallow nature of the temperature monitoring installations, and since the location of the UBPC is in a key-spot of biodiversity changes due to Lessepsian Migration and may be prone to climatic changes [35][36][37], it was thought this time series could also potentially be useful for satellite coastal SST validation, and thus, it was decided to exploit the vertical temperature loggers four-year time series for a comparison with the MODIS Aqua and Terra SST data.…”

Section: Introductionmentioning

confidence: 99%

An Evaluation of Autonomous In Situ Temperature Loggers in a Coastal Region of the Eastern Mediterranean Sea for Use in the Validation of Near-Shore Satellite Sea Surface Temperature Measurements

et al. 2020

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The coastal ocean is one of the most important environments on our planet, home to some of the most bio-diverse and productive ecosystems and providing key input to the livelihood of the majority of human society. It is also a highly dynamic and sensitive environment, particularly susceptible to damage from anthropogenic influences such as pollution and over-exploitation as well as the effects of climate change. These have the added potential to exacerbate other anthropogenic effects and the recent change in sea temperature can be considered as the most pervasive and severe cause of impact in coastal ecosystems worldwide. In addition to open ocean measurements, satellite observations of sea surface temperature (SST) have the potential to provide accurate synoptic coverage of this essential climate variable for the near-shore coastal ocean. However, this potential has not been fully realized, mainly because of a lack of reliable in situ validation data, and the contamination of near-shore measurements by the land. The underwater biotechnological park of Crete (UBPC) has been taking near surface temperature readings autonomously since 2014. Therefore, this study investigated the potential for this infrastructure to be used to validate SST measurements of the near-shore coastal ocean. A comparison between in situ data and Moderate Resolution Imaging Spectroradiometer (MODIS) Aqua and Terra SST data is presented for a four year (2014–2018) in situ time series recorded from the UBPC. For matchups between in situ and satellite SST data, only nighttime in situ extrapolated to the sea surface (SSTskin) data within ±1 h from the satellite’s overpass are selected and averaged. A close correlation between the in situ data and the MODIS SST was found (squared Pearson correlation coefficient-r2 > 0.9689, mean absolute error-Δ < 0.51 both for Aqua and Terra products). Moreover, close correlation was found between the satellite data and their adjacent satellite pixel’s data further from the shore (r2 > 0.9945, Δ < 0.23 for both Aqua and Terra products, daytime and nighttime satellite SST). However, there was also a consistent positive systematic difference in the satellite against satellite mean biases indicating a thermal adjacency effect from the land (e.g., mean bias between daytime Aqua satellite SST from the UBPC cell minus the respective adjacent cell’s data is δ = 0.02). Nevertheless, if improvements are made in the in situ sensors and their calibration and uncertainty evaluation, these initial results indicate that near-shore autonomous coastal underwater temperature arrays, such as the one at UBPC, could in the future provide valuable in situ data for the validation of satellite coastal SST measurements.

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V. Gerovasileiou et al.: New Mediterranean Biodiversity Records (July, 2017)

Cited by 46 publications

References 45 publications

Determining potential conflicts between small-scale fisheries and sea-cage fish farms in the Aegean Sea

Determining potential conflicts between small-scale fisheries and sea-cage fish farms in the Aegean Sea

New Mediterranean Biodiversity Records (July 2018)

An Evaluation of Autonomous In Situ Temperature Loggers in a Coastal Region of the Eastern Mediterranean Sea for Use in the Validation of Near-Shore Satellite Sea Surface Temperature Measurements

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