Climate change and size-selective overexploitation can alter fish size and growth, yet our unders... more Climate change and size-selective overexploitation can alter fish size and growth, yet our understanding of how and to what extent is limited due to a lack of long-term biological data from wild populations. This precludes our ability to effectively forecast population dynamics and support sustainable fisheries management. Using modern, archived, and archaeological vertebrae dimensions and growth rings of one of the most intensely exploited populations, the eastern Atlantic and Mediterranean bluefin tuna (Thunnus thynnus, BFT), we estimated catch-at-size and early-life growth patterns from the 3rd century bce to the 21st century ce to understand responses to changes in its environment. We provide novel evidence that BFT juvenile growth increased between the 16th–18th, 20th, and 21st centuries, and is correlated with a warming climate and likely a decrease in stock biomass. We found it equally plausible that fisheries-induced evolution has acted to increase juvenile BFT growth, drivi...
2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring), 2019
Wearable Ultra Wide Band antennas for short range communications and Body Area Network applicatio... more Wearable Ultra Wide Band antennas for short range communications and Body Area Network applications are frequently realized using all-textile technology to foster the integration in clothes. The research effort is oriented to the use of new textile materials and advanced antenna topologies to overcome the challenging issues of textile on-body antennas. In this work we present a reconfigurable wearable UWB antenna made with denim fabric that is able to change its topology from a monopole-like to microstrip-like antenna without affecting the UWB behavior.
Sensors and Microsystems - Proceedings of the 5th Italian Conference — Extended to Mediterranean Countries, 2000
The aim of this study is to apply electronic nose (EN) technology as an alternative method for fa... more The aim of this study is to apply electronic nose (EN) technology as an alternative method for fast monitoring of metabolic clearances and nephropathy insurgence in diabetics. This will be performed through urine analyses of diabetic patients and healthy subjects.
Atlantic bluefin tuna (Thunnus thynnus; BFT) abundance was depleted in the late 20th and early 21... more Atlantic bluefin tuna (Thunnus thynnus; BFT) abundance was depleted in the late 20th and early 21st century due to overfishing. Historical catch records further indicate that the abundance of BFT in the Mediterranean has been fluctuating since at least the 16th century. Here we build upon previous work on ancient DNA of BFT in the Mediterranean by comparing contemporary (2009–2012) specimens with archival (1911–1926) and archaeological (2nd century BCE–15th century CE) specimens that represent population states prior to these two major periods of exploitation, respectively. We successfully genotyped and analysed 259 contemporary and 123 historical (91 archival and 32 archaeological) specimens at 92 SNP loci that were selected for their ability to differentiate contemporary populations or their association with core biological functions. We found no evidence of genetic bottlenecks, inbreeding or population restructuring between temporal sample groups that might explain what has drive...
SUMMARY This paper provides a general overview on existing scientific knowledge on eastern bluefi... more SUMMARY This paper provides a general overview on existing scientific knowledge on eastern bluefin tuna reproduction and reproductive areas, based on many published papers and even several recent reports. The various larval campaigns were considered, as well as any additional data source concerning age 0 distribution and evidence of mature gonads in various Mediterranean areas over at least more than a century. According to all the published information, it is evident that most of the Mediterranean Sea is a spawning area, with some areas more documented than others (maps were provided), but it is very clear that spawning aggregations can vary in time and space each year, according to several factors, mostly environmental. Some issues concerning the reproduction are still to be understood, but a lot of knowledge is already available. The possibility of having extra-Mediterranean spawning areas was also discussed, but without any definitive additional element. RESUME
A spawning habitat envelope has been created for bluefin tuna in its traditional spawning ground ... more A spawning habitat envelope has been created for bluefin tuna in its traditional spawning ground in the Mediterranean Sea by combining environmental variables and species behavior. We used logistic regressions through a generalized linear model (GLM) approach to determine whether reproduction was affected by spawning habitat characteristics and individual behavior. Results from the implementation of the model predicted a high probability of occurrence of reproductive events associated with 17 tagged tuna. Some of them matched the already well known spawning grounds in the Mediterranean Sea (the area around the Balearic Islands, the Tyrrhenian Sea and the Gulf of Sirte). The model also proposed some other areas seldom or not at all mentioned in the bibliography in both, the Mediterranean and the Atlantic Ocean, such as the Alboran Sea, the Catalan Sea, the Gulf of Lions and the Bay of Biscay. This model provides an objective methodology to predict and adapt spawning areas, and to ide...
... Originally, large but lean bluefin tuna (generally post-spawning) captured by the trap fisher... more ... Originally, large but lean bluefin tuna (generally post-spawning) captured by the trap fishery were kept in a cage (pen) for a few months during which period bait are ... In the Mediterranean Sea, the tuna farming started in late 1970s in Ceuta (near Gibraltar), which were very ...
Overexploitation has directly, negatively affected marine fish populations in the past half-centu... more Overexploitation has directly, negatively affected marine fish populations in the past half-century, modifying not only their abundance but their behaviour and life-history traits. The recovery and resilience of such populations is dependent upon their exploitation history, which often extends back millennia. Hence, data on when exploitation intensified and how populations were composed in historical periods, have the potential to reveal long-term population dynamics and provide context on the baselines currently used in fisheries management and conservation. Here, we setup a framework for investigations on the exploitation history of Atlantic bluefin tuna (Thunnus thynnus; BFT) in the eastern Atlantic and Mediterranean by collating records of their zooarchaeological remains and critically reviewing these alongside the literature. Then, we outline how novel multidisciplinary applications on BFT remains may be used to document long-term population dynamics. Our review of literature p...
The difficult situation of the recent management of the eastern Atlantic bluefin tuna (Thunnus th... more The difficult situation of the recent management of the eastern Atlantic bluefin tuna (Thunnus thynnus) indirectly needs initiatives able to distinguish the best practices and the transparency of the fishing activities. The traditional tuna traps, with their long history, supported by a ...
☯ These authors contributed equally to this work. ‡ These authors also contributed equally to thi... more ☯ These authors contributed equally to this work. ‡ These authors also contributed equally to this work.
Climate change and size-selective overexploitation can alter fish size and growth, yet our unders... more Climate change and size-selective overexploitation can alter fish size and growth, yet our understanding of how and to what extent is limited due to a lack of long-term biological data from wild populations. This precludes our ability to effectively forecast population dynamics and support sustainable fisheries management. Using modern, archived, and archaeological vertebrae dimensions and growth rings of one of the most intensely exploited populations, the eastern Atlantic and Mediterranean bluefin tuna (Thunnus thynnus, BFT), we estimated catch-at-size and early-life growth patterns from the 3rd century bce to the 21st century ce to understand responses to changes in its environment. We provide novel evidence that BFT juvenile growth increased between the 16th–18th, 20th, and 21st centuries, and is correlated with a warming climate and likely a decrease in stock biomass. We found it equally plausible that fisheries-induced evolution has acted to increase juvenile BFT growth, drivi...
2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring), 2019
Wearable Ultra Wide Band antennas for short range communications and Body Area Network applicatio... more Wearable Ultra Wide Band antennas for short range communications and Body Area Network applications are frequently realized using all-textile technology to foster the integration in clothes. The research effort is oriented to the use of new textile materials and advanced antenna topologies to overcome the challenging issues of textile on-body antennas. In this work we present a reconfigurable wearable UWB antenna made with denim fabric that is able to change its topology from a monopole-like to microstrip-like antenna without affecting the UWB behavior.
Sensors and Microsystems - Proceedings of the 5th Italian Conference — Extended to Mediterranean Countries, 2000
The aim of this study is to apply electronic nose (EN) technology as an alternative method for fa... more The aim of this study is to apply electronic nose (EN) technology as an alternative method for fast monitoring of metabolic clearances and nephropathy insurgence in diabetics. This will be performed through urine analyses of diabetic patients and healthy subjects.
Atlantic bluefin tuna (Thunnus thynnus; BFT) abundance was depleted in the late 20th and early 21... more Atlantic bluefin tuna (Thunnus thynnus; BFT) abundance was depleted in the late 20th and early 21st century due to overfishing. Historical catch records further indicate that the abundance of BFT in the Mediterranean has been fluctuating since at least the 16th century. Here we build upon previous work on ancient DNA of BFT in the Mediterranean by comparing contemporary (2009–2012) specimens with archival (1911–1926) and archaeological (2nd century BCE–15th century CE) specimens that represent population states prior to these two major periods of exploitation, respectively. We successfully genotyped and analysed 259 contemporary and 123 historical (91 archival and 32 archaeological) specimens at 92 SNP loci that were selected for their ability to differentiate contemporary populations or their association with core biological functions. We found no evidence of genetic bottlenecks, inbreeding or population restructuring between temporal sample groups that might explain what has drive...
SUMMARY This paper provides a general overview on existing scientific knowledge on eastern bluefi... more SUMMARY This paper provides a general overview on existing scientific knowledge on eastern bluefin tuna reproduction and reproductive areas, based on many published papers and even several recent reports. The various larval campaigns were considered, as well as any additional data source concerning age 0 distribution and evidence of mature gonads in various Mediterranean areas over at least more than a century. According to all the published information, it is evident that most of the Mediterranean Sea is a spawning area, with some areas more documented than others (maps were provided), but it is very clear that spawning aggregations can vary in time and space each year, according to several factors, mostly environmental. Some issues concerning the reproduction are still to be understood, but a lot of knowledge is already available. The possibility of having extra-Mediterranean spawning areas was also discussed, but without any definitive additional element. RESUME
A spawning habitat envelope has been created for bluefin tuna in its traditional spawning ground ... more A spawning habitat envelope has been created for bluefin tuna in its traditional spawning ground in the Mediterranean Sea by combining environmental variables and species behavior. We used logistic regressions through a generalized linear model (GLM) approach to determine whether reproduction was affected by spawning habitat characteristics and individual behavior. Results from the implementation of the model predicted a high probability of occurrence of reproductive events associated with 17 tagged tuna. Some of them matched the already well known spawning grounds in the Mediterranean Sea (the area around the Balearic Islands, the Tyrrhenian Sea and the Gulf of Sirte). The model also proposed some other areas seldom or not at all mentioned in the bibliography in both, the Mediterranean and the Atlantic Ocean, such as the Alboran Sea, the Catalan Sea, the Gulf of Lions and the Bay of Biscay. This model provides an objective methodology to predict and adapt spawning areas, and to ide...
... Originally, large but lean bluefin tuna (generally post-spawning) captured by the trap fisher... more ... Originally, large but lean bluefin tuna (generally post-spawning) captured by the trap fishery were kept in a cage (pen) for a few months during which period bait are ... In the Mediterranean Sea, the tuna farming started in late 1970s in Ceuta (near Gibraltar), which were very ...
Overexploitation has directly, negatively affected marine fish populations in the past half-centu... more Overexploitation has directly, negatively affected marine fish populations in the past half-century, modifying not only their abundance but their behaviour and life-history traits. The recovery and resilience of such populations is dependent upon their exploitation history, which often extends back millennia. Hence, data on when exploitation intensified and how populations were composed in historical periods, have the potential to reveal long-term population dynamics and provide context on the baselines currently used in fisheries management and conservation. Here, we setup a framework for investigations on the exploitation history of Atlantic bluefin tuna (Thunnus thynnus; BFT) in the eastern Atlantic and Mediterranean by collating records of their zooarchaeological remains and critically reviewing these alongside the literature. Then, we outline how novel multidisciplinary applications on BFT remains may be used to document long-term population dynamics. Our review of literature p...
The difficult situation of the recent management of the eastern Atlantic bluefin tuna (Thunnus th... more The difficult situation of the recent management of the eastern Atlantic bluefin tuna (Thunnus thynnus) indirectly needs initiatives able to distinguish the best practices and the transparency of the fishing activities. The traditional tuna traps, with their long history, supported by a ...
☯ These authors contributed equally to this work. ‡ These authors also contributed equally to thi... more ☯ These authors contributed equally to this work. ‡ These authors also contributed equally to this work.
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Papers by Antonio Di Natale