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2. The first high-quality genome assembly and annotation of Anthocidaris crassispina.

Author

Zhang, Jia, Guo, Yu, Su, Jiaqi, Yu, Gang, Ma, Zhenhua, and Qin, Chuanxin

Subjects
WHOLE genome sequencing, SEA urchins, CHROMOSOMES, GENOMES, SPECIES
Abstract

Anthocidaris crassispina is a very popular edible sea urchin distributed along the coast of the South China Sea. In this study, we performed whole-genome sequencing and generated a chromosome-level assembly of this species. The total length of the genomic contig sequence was 891.02 Mb, and contig N50 was 808.15 kb when Hifiasm was used for assembly. The Hi-C library was constructed and sequenced, yielding approximately 68.61 Gb of data. After Hi-C assembly, approximately 886.72 Mb of sequence was able to be mapped onto 21 chromosomes, accounting for 99.52% of the total genome length. Among the sequences located on the chromosomes, those for which the order and direction could be determined accounted for approximately 826.82 Mb, or 93.24% of the total length. These results provide valuable resources for further study of A. crassispina at the genetic level. [ABSTRACT FROM AUTHOR]

Published
2024
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3. High-Throughput Sequencing Analysis Revealed a Preference for Animal-Based Food in Purple Sea Urchins.

Author

Liu, Zerui, Guo, Yu, Qin, Chuanxin, Mu, Xiaohui, and Zhang, Jia

Subjects
PARACENTROTUS lividus, MICROBIAL communities, DIETARY patterns, MARINE resources, NUCLEOTIDE sequencing, SEA urchins
Abstract

Simple Summary: Preliminary investigations revealed that purple sea urchins are distributed in both the stone and algal areas of Daya Bay, with a greater density in the stone area than in the large algal area. This raises important scientific questions: What do the purple sea urchins in the stone area feed on? What is the dietary range of purple sea urchins? Therefore, we focused on purple sea urchins and employed stable isotope technology and 16S rDNA and 18S rDNA high-throughput sequencing techniques to conduct a systematic study on the feeding habits and gut microbiota community structure of purple sea urchins in the stone and algal areas of the central islet sea area of Daya Bay. We aimed to elucidate the feeding habits and dietary range of purple sea urchins. The results of this study provide a theoretical basis for the restoration of wild purple sea urchin resources and the selection of areas for restocking and release. Sea urchins play an important role in marine ecosystems. Owing to limitations in previous research methods, there has been insufficient understanding of the food sources and ecological functional value of purple sea urchins, leading to considerable controversy regarding their functional positioning. We focused on Daya Bay as the research area, utilizing stable isotope technology and high-throughput sequencing of 16S rDNA and 18S rDNA to analyze sea urchins and their potential food sources in stone and algae areas. The results showed that the δ13C range of purple sea urchins in the stone area is −11.42~−8.17‰, and the δ15N range is 9.15~10.31‰. However, in the algal area, the δ13C range is −13.97~−12.44‰, and the δ15N range is 8.75~10.14‰. There was a significant difference in δ13C between the two areas (p < 0.05), but there was no significant difference in δ15N (p > 0.05). The main food source for purple sea urchins in both areas is sediment. The sequencing results of 18S rDNA revealed that, in the algal area, the highest proportion in the sea urchin gut was Molluska (57.37%). In the stone area, the highest proportion was Arthropoda (76.71%). The sequencing results of 16S rDNA revealed that, in the algal area, Bacteroidetes was the dominant group in the sea urchin gut (28.87%), whereas, in the stone area, Proteobacteria was the dominant group (37.83%). Diversity detection revealed a significant difference in the number of gut microbes and eukaryotes between the stone and algal areas (p < 0.05). The results revealed that the main food source of purple sea urchins in both areas is sediment, but the organic nutritional value is greater in the algal area, and the richness of microbiota and eukaryotes in the gut of purple sea urchins in the stone area is greater. These results indicated that purple sea urchins are likely omnivores and that the area where they occur impacts their growth and development. The results of this study provide a theoretical basis for the restoration of wild purple sea urchin resources and the selection of areas for restocking and release. [ABSTRACT FROM AUTHOR]

Published
2024
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12. The aquaculture supply chain in the time of covid-19 pandemic: Vulnerability, resilience, solutions and priorities at the global scale

Author

Mangano, Maria Cristina, Berlino, Manuel, Corbari, Laura, Milisenda, Giacomo, Lucchese, Marta, Terzo, Stella Maria Concetta, Bosch Belmar, Maria del Mar, Azaza, Mohamed Salah, Babarro, Jose, Bakiu, Rigers, Broitman, Bernardo, Buschmann, Alejandro, Christofoletti, Ronaldo, DONG, Yunwei, Glamuzina, Branko, Luthman, Ola, Makridis, Pavlos, Nogueira, António, Palomo, Maria Gabriela, Dineshram, Ramadoss, Sanchez-Jerez, Pablo, Sevgili, Hüseyin, Troell, Max, AbouelFadl, Khaled, Azra, Mohamad Nor, Britz, Peter, Carrington, Emily, Celić, Igor, Choi, Francis, Qin, Chuanxin, Dionísio, Maria Ana, Dobroslavić, Tatjana, Galli, Paolo, Giannetto, Daniela, Grabowski, Jonathan, Helmuth, Brian, Lebata-Ramos, Ma. Junemie Hazel, Lim, Po Teen, Liu, Yajie, Llorens Gumbau, Susana, Mirto, Simone, Pecarevic, Marijana, Pita, Cristina, Ragg, Norman, Ravagnan, Elisa, Saidi, Djamal, Schultz, K., Shaltout, Mohamed, Tan, S. H., Thiyagarajan , Vengatesen, Sarà, Gianluca, Mangano, Maria Cristina, Berlino, Manuel, Corbari, Laura, Milisenda, Giacomo, Lucchese, Marta, Terzo, Stella Maria Concetta, Bosch Belmar, Maria del Mar, Azaza, Mohamed Salah, Babarro, Jose, Bakiu, Rigers, Broitman, Bernardo, Buschmann, Alejandro, Christofoletti, Ronaldo, DONG, Yunwei, Glamuzina, Branko, Luthman, Ola, Makridis, Pavlos, Nogueira, António, Palomo, Maria Gabriela, Dineshram, Ramadoss, Sanchez-Jerez, Pablo, Sevgili, Hüseyin, Troell, Max, AbouelFadl, Khaled, Azra, Mohamad Nor, Britz, Peter, Carrington, Emily, Celić, Igor, Choi, Francis, Qin, Chuanxin, Dionísio, Maria Ana, Dobroslavić, Tatjana, Galli, Paolo, Giannetto, Daniela, Grabowski, Jonathan, Helmuth, Brian, Lebata-Ramos, Ma. Junemie Hazel, Lim, Po Teen, Liu, Yajie, Llorens Gumbau, Susana, Mirto, Simone, Pecarevic, Marijana, Pita, Cristina, Ragg, Norman, Ravagnan, Elisa, Saidi, Djamal, Schultz, K., Shaltout, Mohamed, Tan, S. H., Thiyagarajan , Vengatesen, and Sarà, Gianluca

Abstract

The COVID-19 global pandemic has had severe, unpredictable and synchronous impacts on all levels of perishable food supply chains (PFSC), across multiple sectors and spatial scales. Aquaculture plays a vital and rapidly expanding role in food security, in some cases overtaking wild caught fisheries in the production of high-quality animal protein in this PFSC. We performed a rapid global assessment to evaluate the effects of the COVID-19 pandemic and related emerging control measures on the aquaculture supply chain. Socio-economic effects of the pandemic were analysed by surveying the perceptions of stakeholders, who were asked to describe potential supply-side disruption, vulnerabilities and resilience patterns along the production pipeline with four main supply chain components: a) hatchery, b) production/processing, c) distribution/logistics and d) market. We also assessed different farming strategies, comparing land- vs. sea-based systems; extensive vs. intensive methods; and with and without integrated multi-trophic aquaculture, IMTA. In addition to evaluating levels and sources of economic distress, interviewees were asked to identify mitigation solutions adopted at local / internal (i.e., farm-site) scales, and to express their preference on national / external scale mitigation measures among a set of a priori options. Survey responses identified the potential causes of disruption, ripple effects, sources of food insecurity, and socio-economic conflicts. They also pointed to various levels of mitigation strategies. The collated evidence represents a first baseline useful to address future disaster-driven responses, to reinforce the resilience of the sector and to facilitate the design reconstruction plans and mitigation measures, such as financial aid strategies.

Published
2022

14. The aquaculture supply chain in the time of covid-19 pandemic: Vulnerability, resilience, solutions and priorities at the global scale

Author

Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada, Mangano, M. Cristina, Berlino, Manuel, Corbari, Laura, Milisenda, Giacomo, Lucchese, Marta, Terzo, Stella, Bosch-Belmar, Mar, Azaza, Mohamed Salah, Babarro, Jose M.F., Bakiu, Rigers, Broitman, Bernardo R., Buschmann, Alejandro H., Christofoletti, Ronaldo, Dong, Yunwei, Glamuzina, Branko, Luthman, Ola, Makridis, Pavlos, Nogueira, António J.A., Palomo, Maria Gabriela, Dineshram, Ramadoss, Sanchez-Jerez, Pablo, Sevgili, Hüseyin, Troell, Max, AbouelFadl, Khaled, Azra, Mohamad N., Britz, Peter, Carrington, Emily, Celić, Igor, Choi, Francis, Qin, Chuanxin, Dionísio, Maria Ana, Dobroslavić, Tatjana, Galli, Paolo, Giannetto, Daniela, Grabowski, Jonathan, Helmuth, Brian, Lebata-Ramos, Ma. Junemie Hazel, Lim, Po Teen, Liu, Yajie, Martínez-Llorens, Silvia, Mirto, Simone, Pećarević, Marijana, Pita, Cristina, Ragg, Norman, Ravagnan, Elisa, Saidi, Djamal, Schultz, Kelsey, Shaltout, Mohamed, Tan, Shau Hwai, Thiyagarajan, Vengatesen, Sarà, Gianluca, Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada, Mangano, M. Cristina, Berlino, Manuel, Corbari, Laura, Milisenda, Giacomo, Lucchese, Marta, Terzo, Stella, Bosch-Belmar, Mar, Azaza, Mohamed Salah, Babarro, Jose M.F., Bakiu, Rigers, Broitman, Bernardo R., Buschmann, Alejandro H., Christofoletti, Ronaldo, Dong, Yunwei, Glamuzina, Branko, Luthman, Ola, Makridis, Pavlos, Nogueira, António J.A., Palomo, Maria Gabriela, Dineshram, Ramadoss, Sanchez-Jerez, Pablo, Sevgili, Hüseyin, Troell, Max, AbouelFadl, Khaled, Azra, Mohamad N., Britz, Peter, Carrington, Emily, Celić, Igor, Choi, Francis, Qin, Chuanxin, Dionísio, Maria Ana, Dobroslavić, Tatjana, Galli, Paolo, Giannetto, Daniela, Grabowski, Jonathan, Helmuth, Brian, Lebata-Ramos, Ma. Junemie Hazel, Lim, Po Teen, Liu, Yajie, Martínez-Llorens, Silvia, Mirto, Simone, Pećarević, Marijana, Pita, Cristina, Ragg, Norman, Ravagnan, Elisa, Saidi, Djamal, Schultz, Kelsey, Shaltout, Mohamed, Tan, Shau Hwai, Thiyagarajan, Vengatesen, and Sarà, Gianluca

Abstract

The COVID-19 global pandemic has had severe, unpredictable and synchronous impacts on all levels of perishable food supply chains (PFSC), across multiple sectors and spatial scales. Aquaculture plays a vital and rapidly expanding role in food security, in some cases overtaking wild caught fisheries in the production of high-quality animal protein in this PFSC. We performed a rapid global assessment to evaluate the effects of the COVID-19 pandemic and related emerging control measures on the aquaculture supply chain. Socio-economic effects of the pandemic were analysed by surveying the perceptions of stakeholders, who were asked to describe potential supply-side disruption, vulnerabilities and resilience patterns along the production pipeline with four main supply chain components: a) hatchery, b) production/processing, c) distribution/logistics and d) market. We also assessed different farming strategies, comparing land- vs. sea-based systems; extensive vs. intensive methods; and with and without integrated multi-trophic aquaculture, IMTA. In addition to evaluating levels and sources of economic distress, interviewees were asked to identify mitigation solutions adopted at local / internal (i.e., farm-site) scales, and to express their preference on national / external scale mitigation measures among a set of a priori options. Survey responses identified the potential causes of disruption, ripple effects, sources of food insecurity, and socio-economic conflicts. They also pointed to various levels of mitigation strategies. The collated evidence represents a first baseline useful to address future disaster-driven responses, to reinforce the resilience of the sector and to facilitate the design reconstruction plans and mitigation measures, such as financial aid strategies.

Published
2021

15. The Synergistic Impacts of Anthropogenic Stressors and COVID-19 on Aquaculture: A Current Global Perspective

Author

Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada, Sarà, Gianluca, Mangano, M. Cristina, Berlino, Manuel, Corbari, Laura, Lucchese, Marta, Milisenda, Giacomo, Terzo, Stella, Azaza, Mohamed Salah, Babarro, Jose M.F., Bakiu, Rigers, Broitman, Bernardo R., Buschmann, Alejandro H., Christofoletti, Ronaldo, Deidun, Alan, Dong, Yunwei, Galdies, Johann, Glamuzina, Branko, Luthman, Ola, Makridis, Pavlos, Nogueira, António J.A., Palomo, Maria Gabriela, Dineshram, Ramadoss, Rilov, Gil, Sanchez-Jerez, Pablo, Sevgili, Hüseyin, Troell, Max, AbouelFadl, Khaled, Azra, Mohamad N., Britz, Peter, Brugere, Cecile, Carrington, Emily, Celić, Igor, Choi, Francis, Qin, Chuanxin, Dobroslavić, Tatjana, Galli, Paolo, Giannetto, Daniela, Grabowski, Jonathan, Lebata-Ramos, Ma. Junemie Hazel, Lim, Po Teen, Liu, Yajie, Martínez-Llorens, Silvia, Maricchiolo, Giulia, Mirto, Simone, Pećarević, Marijana, Ragg, Norman, Ravagnan, Elisa, Saidi, Djamal, Schultz, Kelsey, Shaltout, Mohamed, Solidoro, Cosimo, Tan, Shau Hwai, Thiyagarajan, Vengatesen, Helmuth, Brian, Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada, Sarà, Gianluca, Mangano, M. Cristina, Berlino, Manuel, Corbari, Laura, Lucchese, Marta, Milisenda, Giacomo, Terzo, Stella, Azaza, Mohamed Salah, Babarro, Jose M.F., Bakiu, Rigers, Broitman, Bernardo R., Buschmann, Alejandro H., Christofoletti, Ronaldo, Deidun, Alan, Dong, Yunwei, Galdies, Johann, Glamuzina, Branko, Luthman, Ola, Makridis, Pavlos, Nogueira, António J.A., Palomo, Maria Gabriela, Dineshram, Ramadoss, Rilov, Gil, Sanchez-Jerez, Pablo, Sevgili, Hüseyin, Troell, Max, AbouelFadl, Khaled, Azra, Mohamad N., Britz, Peter, Brugere, Cecile, Carrington, Emily, Celić, Igor, Choi, Francis, Qin, Chuanxin, Dobroslavić, Tatjana, Galli, Paolo, Giannetto, Daniela, Grabowski, Jonathan, Lebata-Ramos, Ma. Junemie Hazel, Lim, Po Teen, Liu, Yajie, Martínez-Llorens, Silvia, Maricchiolo, Giulia, Mirto, Simone, Pećarević, Marijana, Ragg, Norman, Ravagnan, Elisa, Saidi, Djamal, Schultz, Kelsey, Shaltout, Mohamed, Solidoro, Cosimo, Tan, Shau Hwai, Thiyagarajan, Vengatesen, and Helmuth, Brian

Abstract

The rapid, global spread of COVID-19, and the measures intended to limit or slow its propagation, are having major impacts on diverse sectors of society. Notably, these impacts are occurring in the context of other anthropogenic-driven threats including global climate change. Both anthropogenic stressors and the COVID-19 pandemic represent significant economic challenges to aquaculture systems across the globe, threatening the supply chain of one of the most important sources of animal protein, with potential disproportionate impacts on vulnerable communities. A web survey was conducted in 47 countries in the midst of the COVID-19 pandemic to assess how aquaculture activities have been affected by the pandemic, and to explore how these impacts compare to those from climate change. A positive correlation between the effects of the two categories of drivers was detected, but analysis suggests that the pandemic and the anthropogenic stressors affect different parts of the supply chain. The immediate measurable reported losses varied with aquaculture typology (land vs. marine, and intensive vs. extensive). A comparably lower impact on farmers reporting the use of integrated multitrophic aquaculture (IMTA) methods suggests that IMTA might enhance resilience to multiple stressors by providing different market options under the COVID-19 pandemic. Results emphasize the importance of assessing detrimental effects of COVID-19 under a multiple stressor lens, focusing on areas that have already locally experienced economic loss due to anthropogenic stressors in the last decade. Holistic policies that simultaneously address other ongoing anthropogenic stressors, rather than focusing solely on the acute impacts of COVID-19, are needed to maximize the long-term resilience of the aquaculture sector.

Published
2021

16. The synergistic impacts of anthropogenic stressors and COVID-19 on aquaculture: A current global perspective

Author

Sarà, Gianluca, Mangano, Maria Cristina, Berlino, Manuel, Corbari, Laura, Lucchese, Marta, Milisenda, Giacomo, Terzo, Stella Maria Concetta, Azaza, Mohamed Salah, Babarro, Jose, Bakiu, Rigers, Broitman, Bernardo, Buschmann, Alejandro, Christofoletti, Ronaldo, Deidun, Alan, Dong, Yunwei, Galdies, Johann, Glamuzina, Branko, Luthman, Ola, Makridis, Pavlos, Nogueira, António, Palomo, Maria Gabriela, Dineshram, Ramadoss, Rilov, Gil, Sanchez-Jerez, Pablo, Sevgili, Hüseyin, Troell, Max, AbouelFadl, Khaled, Md Adib, Mohamad Nor Azra, Britz, Peter, Brugere, Cecile, Carrington, Emily, Celić, Igor, Choi, Francis, Qin, Chuanxin, Dobroslavić, Tatjana, Galli, Paolo, Giannetto, Daniela, Grabowski, J., Lebata-Ramos, Ma. Junemie Hazel, Lim, Po Teen, Liu, Yajie, Martínez-Llorens, Silvia, Maricchiolo, Giulia, Mirto, Simone, Pecarevic, Marijana, Ragg, Norman, Ravagnan, Elisa, Saidi, Djamal, Schultz, K., Shaltout, Mohamed, solidoro, cosimo, Shau Hwai, Aileen Tan, Thiyagarajan , Vengatesen, Helmuth, Brian, Sarà, Gianluca, Mangano, Maria Cristina, Berlino, Manuel, Corbari, Laura, Lucchese, Marta, Milisenda, Giacomo, Terzo, Stella Maria Concetta, Azaza, Mohamed Salah, Babarro, Jose, Bakiu, Rigers, Broitman, Bernardo, Buschmann, Alejandro, Christofoletti, Ronaldo, Deidun, Alan, Dong, Yunwei, Galdies, Johann, Glamuzina, Branko, Luthman, Ola, Makridis, Pavlos, Nogueira, António, Palomo, Maria Gabriela, Dineshram, Ramadoss, Rilov, Gil, Sanchez-Jerez, Pablo, Sevgili, Hüseyin, Troell, Max, AbouelFadl, Khaled, Md Adib, Mohamad Nor Azra, Britz, Peter, Brugere, Cecile, Carrington, Emily, Celić, Igor, Choi, Francis, Qin, Chuanxin, Dobroslavić, Tatjana, Galli, Paolo, Giannetto, Daniela, Grabowski, J., Lebata-Ramos, Ma. Junemie Hazel, Lim, Po Teen, Liu, Yajie, Martínez-Llorens, Silvia, Maricchiolo, Giulia, Mirto, Simone, Pecarevic, Marijana, Ragg, Norman, Ravagnan, Elisa, Saidi, Djamal, Schultz, K., Shaltout, Mohamed, solidoro, cosimo, Shau Hwai, Aileen Tan, Thiyagarajan , Vengatesen, and Helmuth, Brian

Abstract

The rapid, global spread of COVID-19, and the measures intended to limit or slow its propagation, are having major impacts on diverse sectors of society. Notably, these impacts are occurring in the context of other anthropogenic-driven threats including global climate change. Both anthropogenic stressors and the COVID-19 pandemic represent significant economic challenges to aquaculture systems across the globe, threatening the supply chain of one of the most important sources of animal protein, with potential disproportionate impacts on vulnerable communities. A web survey was conducted in 47 countries in the midst of the COVID-19 pandemic to assess how aquaculture activities have been affected by the pandemic, and to explore how these impacts compare to those from climate change. A positive correlation between the effects of the two categories of drivers was detected, but analysis suggests that the pandemic and the anthropogenic stressors affect different parts of the supply chain. The immediate measurable reported losses varied with aquaculture typology (land vs. marine, and intensive vs. extensive). A comparably lower impact on farmers reporting the use of integrated multitrophic aquaculture (IMTA) methods suggests that IMTA might enhance resilience to multiple stressors by providing different market options under the COVID-19 pandemic. Results emphasize the importance of assessing detrimental effects of COVID-19 under a multiple stressor lens, focusing on areas that have already locally experienced economic loss due to anthropogenic stressors in the last decade. Holistic policies that simultaneously address other ongoing anthropogenic stressors, rather than focusing solely on the acute impacts of COVID-19, are needed to maximize the long-term resilience of the aquaculture sector.

Published
2021

18. Density, Storage and Distribution of Carbon in Mangrove Ecosystem in Guangdong's Coastal Areas

Author

LI, Na, CHEN, Pimao, and QIN, Chuanxin

Subjects
Mangrove, Carbon density, Carbon storage, Distribution characteristics, Guangdong’s coastal areas, Agribusiness
Abstract

Using the mangrove plants and sediment of the typical mangrove areas in Guangdong's coastal areas, P. R. China as the research object, the density, storage and spatial distribution of carbon are studied. The study method is the combination of the wild field analysis and laboratory testing method. The results show that the carbon density of the sediment will gradually decrease because of the increased depth, and has nothing to do with the difference of the area and tree species. The average carbon density of 50cm sediment is 0.007gC/g. The carbon density is obviously different in different components of different mangrove species in different regions. The total carbon storage in different regions is in the following order: Zhuhai＞Gaoqiao＞Shenzhen＞Shuidong Bay＞Guanghai Bay＞Raoping＞Daya Bay＞Chenghai. The carbon density and carbon storage are obviously higher in mangrove covered area than blank area. It shows that mangroves have very strong carbon sink function.

Published
2015

19. Research Advances on Marine Ecological Effect and Repairing Techniques of Coastal Mangrove Wetland

Author

Li, Na, Chen, Pimao, Qiao, Peipei, and Qin, Chuanxin

Subjects
Coastal mangrove wetland, Implant restoration, Marine ecological effect, Protection and management, Agribusiness
Abstract

Coastal mangrove wetland is one of the areas whose global ecological environmental conditions have severely changed. Its ecosystem is vulnerable to damaged. The international community has paid attention to conservation and wisely use of mangrove wetland. This paper describes five parts of coastal mangrove wetland at home and abroad, including seawater’s purification effect of nitrogen and phosphorus, seawater’s adsorption of heavy metals, the functions of carbon sequestration and climate regulation, implant restoration techniques and the status of protection and management .And research trends of coastal mangrove wetland were proposed, in order to provide reference for the restoration and protection of China's coastal mangrove wetland.

Published
2014

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