Aylin Ulman, H. D. Akbora, Ozgur Çanak, Elaine Chu, Burak A. Çiçek, Hasan Ersönmez, Sinan Mavruk, C. E. Özyurt, T. Yıldız, Amy Liu, N. Demirel, D. Pauly
{"title":"东地中海入侵河豚Torquigener hypselogeneion (Bleeker 1852) [conspecific Torquigener flavimaculosus Hardy & Randall, 1983]的生物学和生态学研究","authors":"Aylin Ulman, H. D. Akbora, Ozgur Çanak, Elaine Chu, Burak A. Çiçek, Hasan Ersönmez, Sinan Mavruk, C. E. Özyurt, T. Yıldız, Amy Liu, N. Demirel, D. Pauly","doi":"10.3391/ai.2023.18.1.103438","DOIUrl":null,"url":null,"abstract":"The highly toxic orange-spotted toadfish Torquigener hypselogeneion (Bleeker 1852) [conspecific Torquigener flavimaculosus Hardy & Randall, 1983] is now a very common invasive fish in the Eastern Mediterranean. Its small size, well under 20 cm, may have concealed the danger it represents, and little is known about its biology or ecology. Here, the spawning seasons, gonado- and hepato-somatic index and condition factors of T. hypselogeneion from 3 locations of the Eastern Mediterranean are presented, based on a total of 1360 individuals sampled, i.e., 216 from Finike, 817 from Fethiye (both Turkey), and 327 from Cyprus. Our results show that T. hypselogeneion is a carnivorous species that forages on sandy bottoms, with a preference for small invertebrates, especially the small invasive gastropod Cerithium scabridum, crustaceans (hermit crabs, other crabs and barnacles), and sea urchins; however, at least in some localities, they appear to forgo eating during their peak reproductive period. The parameters of the von Bertalanffy Growth Function for T. hypselogeneion in the Eastern Mediterranean were: asymptotic length = 17.4 cm (total length; TL) and K = 0.96 year-1, implying a longevity of about 4 years, while the mean length at first maturity was about 10 cm (TL) for both sexes. An average-sized adult female (13 cm TL, 45.7 g live weight) was found to contain 1,250 eggs per gram body weight. Based on its high invasiveness and negative impacts to ecology of the Eastern Mediterranean and the human health, we suggest that T. hypselogeneion should be listed as a priority invasive species and that its population closely monitored within the Mediterranean Sea.","PeriodicalId":8119,"journal":{"name":"Aquatic Invasions","volume":"1 1","pages":""},"PeriodicalIF":2.2000,"publicationDate":"2023-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"A biological and ecological study of the invasive pufferfish Torquigener hypselogeneion (Bleeker 1852) [conspecific Torquigener flavimaculosus Hardy & Randall, 1983] in the Eastern Mediterranean\",\"authors\":\"Aylin Ulman, H. D. Akbora, Ozgur Çanak, Elaine Chu, Burak A. Çiçek, Hasan Ersönmez, Sinan Mavruk, C. E. Özyurt, T. Yıldız, Amy Liu, N. Demirel, D. 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引用次数: 1
摘要
剧毒橙斑蟾蜍鱼Torquigener hypselogeneion (Bleeker 1852)[同种Torquigener flavimaculosus Hardy & Randall, 1983]现在是地中海东部非常常见的入侵鱼类。它的体型很小,不到20厘米,这可能掩盖了它所代表的危险,而且人们对它的生物学和生态学知之甚少。本文以地中海东部3个地点共1360条样本(菲尼克216条,土耳其费特希耶817条,塞浦路斯327条)为基础,介绍了产卵季节、性腺和肝体指数以及条件因素。结果表明:水蚤是一种以沙质底部为食的肉食性物种,偏好捕食小型无脊椎动物,尤其是小型入侵腹足类动物Cerithium scabridum、甲壳类动物(寄居蟹、其他蟹类和藤壶类)和海胆;然而,至少在一些地方,它们在繁殖高峰期似乎不吃东西。东地中海地区T. hypselogeneion的von Bertalanffy生长函数参数为:渐近长度= 17.4 cm(总长度;TL), K = 0.96 year-1,寿命约为4年,雌雄初成熟平均体长约为10 cm (TL)。一只中等大小的成年雌鱼(身长13厘米,活重45.7克)每克体重含有1250个卵。鉴于其高入侵性和对东地中海生态和人类健康的负面影响,建议将其列为优先入侵物种,并在地中海范围内密切监测其种群。
A biological and ecological study of the invasive pufferfish Torquigener hypselogeneion (Bleeker 1852) [conspecific Torquigener flavimaculosus Hardy & Randall, 1983] in the Eastern Mediterranean
The highly toxic orange-spotted toadfish Torquigener hypselogeneion (Bleeker 1852) [conspecific Torquigener flavimaculosus Hardy & Randall, 1983] is now a very common invasive fish in the Eastern Mediterranean. Its small size, well under 20 cm, may have concealed the danger it represents, and little is known about its biology or ecology. Here, the spawning seasons, gonado- and hepato-somatic index and condition factors of T. hypselogeneion from 3 locations of the Eastern Mediterranean are presented, based on a total of 1360 individuals sampled, i.e., 216 from Finike, 817 from Fethiye (both Turkey), and 327 from Cyprus. Our results show that T. hypselogeneion is a carnivorous species that forages on sandy bottoms, with a preference for small invertebrates, especially the small invasive gastropod Cerithium scabridum, crustaceans (hermit crabs, other crabs and barnacles), and sea urchins; however, at least in some localities, they appear to forgo eating during their peak reproductive period. The parameters of the von Bertalanffy Growth Function for T. hypselogeneion in the Eastern Mediterranean were: asymptotic length = 17.4 cm (total length; TL) and K = 0.96 year-1, implying a longevity of about 4 years, while the mean length at first maturity was about 10 cm (TL) for both sexes. An average-sized adult female (13 cm TL, 45.7 g live weight) was found to contain 1,250 eggs per gram body weight. Based on its high invasiveness and negative impacts to ecology of the Eastern Mediterranean and the human health, we suggest that T. hypselogeneion should be listed as a priority invasive species and that its population closely monitored within the Mediterranean Sea.
期刊介绍:
Aquatic Invasions is an open access, peer-reviewed international journal focusing on academic research of biological invasions in both inland and coastal water ecosystems from around the world.
It was established in 2006 as initiative of the International Society of Limnology (SIL) Working Group on Aquatic Invasive Species (WGAIS) with start-up funding from the European Commission Sixth Framework Programme for Research and Technological Development Integrated Project ALARM.
Aquatic Invasions is an official journal of International Association for Open Knowledge on Invasive Alien Species (INVASIVESNET).
Aquatic Invasions provides a forum for professionals involved in research of aquatic non-native species, including a focus on the following:
• Patterns of non-native species dispersal, including range extensions with global change
• Trends in new introductions and establishment of non-native species
• Population dynamics of non-native species
• Ecological and evolutionary impacts of non-native species
• Behaviour of invasive and associated native species in invaded areas
• Prediction of new invasions
• Advances in non-native species identification and taxonomy