The Struggle for Life: Pinna nobilis in the Marmara Sea (Turkey)

Acarlı, Deniz; Acarlı, Sefa; Kale, Semih

doi:10.1007/s41208-022-00470-0

Cited by 10 publications

(18 citation statements)

References 41 publications

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“…According to the studies that have been conducted along the Turkish coasts (Öndes et al 2019;Öndes et al 2020;Özalp and Kersting 2020;Çınar et al 2021aAcarli et al, 2020aAcarli et al, , 2021aAcarli et al, , 2021bAcarli et al, , 2022b, the density of P. nobilis was found to be between 0.3-112.0 ind./100m 2 . Depending on the current study and the study by Çanak et al (2006), the density values were 0.020 ind./100 m 2 and 0.022 ind./100 m 2 respectively, which represented the lowest values among the all the studies those have been conducted up to now.…”

Section: Discussionmentioning

confidence: 98%

Mass mortality report of the critically endangered Pinna nobilis (Linnaeus, 1758) in Gökçeada (North Aegean Sea, Turkey)

Acarlı

Öz

2022

EgeJFAS

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In August 2020, a total area of 38000 m2 around Gökçeada has been scanned to determine the current population status of Pinna nobilis. 9 stations (Yıldızkoy, Manastır, Marmaros, Gizli Liman, Laz Koyu, Kapıkaya, Karaçavuş, Karaçavuş shore and Kefalos) have been detected by means of SCUBA and ABC diving techniques. All specimens were found dead (total mass mortality of 100%). The total length range of P. nobilis was between 30.8 – 38.3 cm.

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Section: Discussionmentioning

confidence: 98%

Mass mortality report of the critically endangered Pinna nobilis (Linnaeus, 1758) in Gökçeada (North Aegean Sea, Turkey)

Acarlı

Öz

2022

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“…Besides, if we consider that the species can reach up to 120cm (Zavodnik et al, 1991) in length and that lengths of over 50cm are commonly observed (García-March et al, 2019), higher CR per individual can be expected for much larger adults than those used in this study (≈ 30cm of shell length). The environmental impact in terms of water filtration of fan mussels would be substantial, especially for large populations in confined waters which, in addition, are the only areas with individuals enduring the disease, like the Mar Menor lagoon (Nebot-Colomer et al, 2021;Cortés-Melendreras et al, 2022), the Ebro Delta (Prado et al, 2021b), several coastal lagoons in the Gulf of Lion (Peyran et al, 2021), the Marano lagoon (Curiel et al, 2020) and the Sea of Marmara (Acarli et al, 2022). These paralic environments are particularly susceptible to eutrophication because of high anthropogenic impacts and lower water renewal compared to the open sea (Kennish & Paerl, 2010); therefore, the relevance of fan mussel water filtration is greater.…”

Section: Thermal Tolerance and Physiological Measurementsmentioning

confidence: 99%

“…The few fan mussel populations that can still be found in shallow bays, coastal lagoons and the Marmara Sea (García-March et al, 2020;Cinar et al, 2021;Nebot-Colomer et al, 2021;Peyran et al, 2021;Acarli et al, 2022;Katsanevakis et al, 2022) are threatened in the medium to long-term (García-March et al, 2019), but information on how resilient can they be to expected changes is lacking. Moreover, the connection between surviving populations and impacted areas (Wesselmann et al, 2018;González-Wangüemert et al, 2019) could be pointless because of the persistence of the disease (protozoan spores), which prevents recolonization by propagule rain after local extinction.…”

Section: Introductionmentioning

confidence: 99%

Physiological responses of the fan mussel Pinna nobilis to temperature: ecological and captivity implications

et al. 2023

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The fan mussel Pinna nobilis is experiencing a mass mortality event throughout the Mediterranean Sea. The survival of the remaining isolated populations and the maintenance and reproduction of individuals in captivity could determine the future of the species. This paper examines the clearance rate (CR) and oxygen consumption (VO2) of fan mussel individuals measured under 5 different temperatures (8.5, 14, 18, 23 and 28ºC). The measurements of both physiological variables revealed a threshold limit of thermal tolerance at both extreme temperatures, indicating the critical situation of the remaining populations, which are located in coastal lagoons and shallow bays where these extreme temperatures usually occur. Besides, the high clearance rates observed highlight the significant ecosystem service provided by the species in terms of water filtration, especially in confined waters with low renewal rates. Routine control of the clearance rate as an early warning system is proposed for detecting ailing individuals. Such a system could also be used to improve captivity conditions.

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“…Nevertheless, live populations of P. nobilis still exist in shallow bays, coastal lagoons (Katsanevakis et al, 2007;Ruitton and Lefebvre, 2021;García-March et al, 2020;Çınar et al, 2021a;Katsanevakis et al, 2022;Nebot-Colomer et al, 2022;Peyran et al, 2022;Papadakis et al, 2022), the Çanakkale Strait (Acarlı et al, 2021), and the Sea of Marmara (Çınar et al, 2021a;Acarli et al, 2021;Acarlı et al, 2022a;Karadurmuş and Sarı, 2022) in the Mediterranean region.…”

Section: Introductionmentioning

confidence: 99%

Distribution of the critically endangered fan mussel Pinna nobilis population in the Çanakkale Strait and Marmara Sea

Acarlı,

Kale

2024

EgeJFAS

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This study was conducted with the primary objective of determining the presence of both healthy and impacted Pinna nobilis populations along the European coasts of the Sea of Marmara, followed by the identification of P. nobilis abundance and survival rates in the region encompassing the Çanakkale Strait and the southern coasts of the Sea of Marmara. Underwater surveys were randomly conducted at 19 distinct stations, including 8 stations along the European coasts of the Sea of Marmara, 7 stations along the southern coasts of the Sea of Marmara, and 6 stations within the Çanakkale Strait. SCUBA diving equipment was utilized to record information on habitat structure, water temperature, depth, and visibility at each station. The transect length during underwater surveys and the number of transects at each station were determined based on the condition of the seabed and the size of the area, respectively. Throughout the study period (September 2021 and October 2023), water temperature fluctuated between 17.5°C and 26.6°C. At the end of the study, a total of 395 individuals (147 live, 248 dead) were observed, with live individuals exhibiting total lengths ranging from 16.4 cm to 50.9 cm. This study represents the first investigation into the spatial distribution of P. nobilis along the European coast of the Marmara Sea. The study contributes significantly to enhancing our understanding of the ecology of P. nobilis populations in both the Sea of Marmara and the Çanakkale Strait. Additionally, recommendations for the rehabilitation of impacted populations and the conservation of healthy populations have been provided for decision-makers and fisheries managers.

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The Struggle for Life: Pinna nobilis in the Marmara Sea (Turkey)

Cited by 10 publications

References 41 publications

Mass mortality report of the critically endangered Pinna nobilis (Linnaeus, 1758) in Gökçeada (North Aegean Sea, Turkey)

Mass mortality report of the critically endangered Pinna nobilis (Linnaeus, 1758) in Gökçeada (North Aegean Sea, Turkey)

Physiological responses of the fan mussel Pinna nobilis to temperature: ecological and captivity implications

Distribution of the critically endangered fan mussel Pinna nobilis population in the Çanakkale Strait and Marmara Sea

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