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Spatial and temporal patterns of scyphozoan jellyfish abundance and growth in Icelandic coastal waters – a climate change perspective 冰岛沿海水域水母丰度和生长的时空模式--气候变化视角
IF 1.1 4区 生物学 Q4 ECOLOGY Pub Date : 2023-12-17 DOI: 10.1080/17451000.2023.2291569
Florian Lüskow, Gudjon Mar Sigurdsson, Jörundur Svavarsson, Astthor Gislason
Scyphozoan jellyfish in Icelandic waters have received limited attention, despite apparent recent increases in blooms and changes in the regional oceanographic setting. The objectives of this study...
冰岛水域的鞘水母受到的关注有限,尽管最近水母群明显增多,而且区域海洋环境也发生了变化。这项研究的目的是...
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引用次数: 0
Effects of salinity on physiological responses in the sesarmid crab Episesarma mederi (H. Milne Edwards, 1853) 盐度对芝麻蟹生理反应的影响(H. Milne Edwards, 1853)
IF 1.1 4区 生物学 Q4 ECOLOGY Pub Date : 2023-12-03 DOI: 10.1080/17451000.2023.2282425
Phurich Boonsanit, Supanut Pairohakul
The sesarmid crab Episesarma mederi (H. Milne Edwards, 1853) lives in mid to upper intertidal mangroves, while its physiological responses to salinity are still poorly known. Here, we examined the ...
芝麻蟹(Episesarma mederi, H. Milne Edwards, 1853)生活在潮间带红树林中上游,其对盐度的生理反应尚不清楚。在这里,我们检查了…
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引用次数: 0
Distribution and potential roles of microbial protoporphyrin IX in marine sediments 微生物原卟啉IX在海洋沉积物中的分布及其潜在作用
IF 1.1 4区 生物学 Q4 ECOLOGY Pub Date : 2023-12-03 DOI: 10.1080/17451000.2023.2282429
Lide Gu, Wanli Yan, Xinli Yue, Haowen Zhong, Deli Wang
Protoporphyrin IX (PPIX) serves as a pivotal precursor in the biosynthesis of porphyrins, playing a crucial role in both biological metabolism and biogeochemical cycling. This study investigates th...
原卟啉IX (Protoporphyrin IX, PPIX)是卟啉生物合成的关键前体,在生物代谢和生物地球化学循环中都起着至关重要的作用。本研究调查……
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引用次数: 0
Morphological, phylogenetic and biogeographic characterizations of three heterotrophic nanoflagellates isolated from coastal areas of Korea 韩国沿海地区分离的三种异养纳米鞭毛虫的形态、系统发育和生物地理特征
4区 生物学 Q4 ECOLOGY Pub Date : 2023-11-08 DOI: 10.1080/17451000.2023.2271939
Dong Hyuk Jeong, Hyeon Been Lee, Aaron A. Heiss, Byung Cheol Cho, Jong Soo Park
Heterotrophic nanoflagellates (HNFs, 2–20 μm in size) are important bacterivores in aquatic environments. We isolated and distinguished three HNF strains from Korean coastal samples: Ancyromonas kenti strain KM086, Cafeteria mylnikovii strain JS001 and Multimonas media strain JS004. Their 18S rDNA sequences aligned with previously known counterparts. Under light microscopy, all strains match their previous respective species descriptions. However, under scanning electron microscopy, strain JS004 shows some features at odds with prior observations of M. media, including different putative extrusomes, an ‘unfrilled’ skirt margin, and a putative ‘tusk’. We also used the V4 region of 18S rDNA to study species distribution globally using Malaspina-2010 data from 122 surface stations and 13 various depth stations. Intriguingly, we found that A. kenti was most abundant in low-oxygen conditions of the bathypelagic zones (1000–4000 m deep) in the Pacific Ocean, suggesting a specialization for thriving in low-oxygen habitats. In contrast, we only found M. media represented at one surface site, and C. mylnikovii was not found at all. Thus, A. kenti may be one of the most important feeders on bacteria in the bathypelagic zones with low-oxygen concentrations, while the other two isolates appear to be rare species in marine systems.
异养型纳米鞭毛虫(HNFs,大小2 ~ 20 μm)是水生环境中重要的细菌捕食者。我们从韩国沿海地区的样品中分离并鉴定了3株HNF菌株:肯氏弓形单胞菌KM086、mylnikovii自助餐菌株JS001和培养基多单胞菌JS004。他们的18S rDNA序列与之前已知的对应序列一致。在光镜下,所有菌株都符合之前各自的物种描述。然而,在扫描电子显微镜下,菌株JS004显示出一些与先前观察到的M. media不一致的特征,包括不同的推定外突体、“无褶边”的裙边和推定的“长牙”。利用122个地面站和13个不同深度站的Malaspina-2010数据,利用18S rDNA的V4区研究了全球物种分布。有趣的是,我们发现a . kenti在太平洋深海带(1000-4000米深)的低氧条件下最丰富,这表明在低氧栖息地中繁殖的专业化。相比之下,我们只在一个表面位点发现了M. media,而C. mylnikovii则完全没有发现。因此,肯塔基芽胞杆菌可能是低氧深海区最重要的细菌捕食者之一,而其他两种分离菌株在海洋系统中似乎是罕见的物种。
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引用次数: 0
Age, growth, and feeding of boarfish, Capros aper (Linnaeus, 1758) in the Southwest of the Iberian Peninsula 伊比利亚半岛西南部Capros aper(林奈,1758年)板鱼的年龄、生长和喂养
4区 生物学 Q4 ECOLOGY Pub Date : 2023-10-30 DOI: 10.1080/17451000.2023.2267566
J. Castro-Gutiérrez, A. García-González, C. Rodríguez-García, Á. R. Domínguez-Bustos, R. Cabrera-Castro
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引用次数: 0
Aggregation patterns in juvenile southern king crab Lithodes santolla (Molina, 1782). Are the aggregations related to moulting activity? 南方帝王蟹稚蟹的聚集模式(Molina, 1782)。这些聚集与换羽活动有关吗?
4区 生物学 Q4 ECOLOGY Pub Date : 2023-10-19 DOI: 10.1080/17451000.2023.2262485
Julia Colombo, Vinuesa Julio, Martín Varisco
ABSTRACTThe early life history of decapod species involves several stages and ontogeny-related shifts in habitat requirements and behaviour. Early publications have reported that, in the San Jorge Gulf (45–47°S), Argentina, juvenile southern king crab Lithodes santolla (Molina, 1782) (SKC) remain in rocky coastal habitats for at least three years, prior to their migration to soft bottoms. In this study, we analysed the gregarious behaviour of juvenile SKCs and its relation with moulting activity through the early ontogeny of the species. Different aggregation patterns were observed in SKC juveniles during sampling. These aggregation patterns were related to an increase in moulting activity. SKC 1+ and 2+ formed small groups of 7–31 juveniles in holes or cracks at shallower depths. A large aggregation was recorded in November 2014 associated with Macrocystis pyrifera forests. This aggregation involved advanced juveniles 3+, probably at the end of their stay in the coastal environment. Our results suggest that the aggregation of juvenile SKCs is related to high moulting activity and that differences in the aggregation patterns are related to ontogeny. The aggregation of advanced juveniles may reflect a (re)synchronous moult prior to a coordinated abandonment of the coastal environment.HIGHLIGHTS The aggregation behaviour of SKC juveniles is related to an increase in moulting activity.The aggregation pattern exhibits differences related to the size/age of SKC juveniles.SKCs form large aggregations at the end of their stay in coastal environments.KEYWORDS: Southern king crabLithodes santollaaggregations of juvenilesontogenetic shiftsmoulting activity AcknowledgementsWe thank Héctor Durbas for his assistance in the fieldwork.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was partially funded by the Ministerio de Ciencia, Tecnología e Innovación Productiva of Argentina (PICT 2015-1297).
摘要十足动物的早期生活史包含了栖息地需求和行为的几个阶段和个体发生相关的变化。早期的出版物报道,在阿根廷的圣乔治湾(45-47°S),南部帝王蟹Lithodes santolla (Molina, 1782) (SKC)幼蟹在迁移到软底之前,在岩石海岸栖息地至少停留了三年。在本研究中,我们通过该物种的早期个体发育分析了幼代SKCs的群居行为及其与换羽活动的关系。在采样过程中观察到不同的SKC幼鱼聚集模式。这些聚集模式与换羽活动的增加有关。SKC 1+和2+在较浅深度的孔或裂缝中形成7-31个幼体的小群体。2014年11月记录了与大孢子虫(Macrocystis pyrifera)林相关的大型聚集。这种聚集涉及到高级幼鱼3+,可能是在它们在海岸环境中生活的最后阶段。我们的研究结果表明,幼代SKCs的聚集与高换羽活性有关,而聚集模式的差异与个体发育有关。高级幼鱼的聚集可能反映了在沿海环境被协调抛弃之前的(重新)同步换羽。SKC幼崽的聚集行为与换毛活动的增加有关。聚集模式的差异与幼鱼的大小/年龄有关。skc在沿海环境中停留结束时形成大型聚集。关键词:南方王蟹;岩石群;幼体聚集;;披露声明作者未报告潜在的利益冲突。本研究的部分资金由阿根廷科学部,Tecnología e Innovación Productiva提供(PICT 2015-1297)。
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引用次数: 0
Morphometric analyses of Mithraculus forceps (Brachyura: Mithracidae): linear and geometric approaches in a no-take marine reserve population 钳密肢鼠(短肢目:密肢鼠科)的形态计量学分析:在海洋禁捕保护区种群中的线性和几何方法
4区 生物学 Q4 ECOLOGY Pub Date : 2023-10-09 DOI: 10.1080/17451000.2023.2262482
Gabriel Vieira Martins Rezende-Gois, Caio Santos Nogueira, Isabela Ribeiro Rocha Moraes, Rafael Carvalho Santos, Rogerio Caetano Costa
ABSTRACTMithraculus forceps is a common species on islands in Brazil, and investigations of their sexual and population structures provide insights into their life cycle. Our aim was to analyze relative growth, estimate morphological sexual maturity, and investigate sexual dimorphism in a population inhabiting the Alcatrazes Archipelago. Sampling was conducted using artificial refuge and active capture methods. Five body structures were analyzed for relative growth and morphological sexual maturity estimation: carapace and abdomen width, propodus length and height, and gonopod length in males. Sexual dimorphism was observed in carapace and propodus shape. Morphological sexual maturity was estimated at 10.12 mm carapace width for males and 10.66 mm carapace width for females. Some variations in morphometric aspects were observed in the analyzed population when compared to other populations of M. forceps inhabiting unprotected areas. Crabs from Alcatrazes may reach larger sizes due to their protected habitat. This underscores the crucial role of a marine conservation unit in preserving significant ecological processes and highlights the importance of management plans for other locations and environments facing anthropogenic pressures.KEYWORDS: AllometryAlcatrazes ArchipelagoDecapodarelative growthreproduction AcknowledgmentsWe would like to express our gratitude to the entire LABCAM and LABIAQUA teams for their assistance during the animal collection. CSN thanks for its doctoral and postdoctoral scholarships (FAPESP 2019/00661-3 and 2023/01445-8). We also thank ICMBio (Instituto Chico Mendes de Biodiversidade) and IBAMA (Instituto Brasileiro de Meio Ambiente e dos Recursos Naturais Renováveis) for granting permission to sample and transport in situ wild fauna for scientific purposes, in accordance with the State and Federal regulatory framework SISBIO (Sistema de Autorização e Informações em Biodiversidade) n° 69588-4/2020.Data availability statementThe data that support the findings of this study are available from the corresponding author, CSN, upon reasonable request.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was funded by the São Paulo Research Foundation (FAPESP) [Fundação de Amparo à Pesquisa do Estado de São Paulo] [grant numbers 2018/13685-5 for RCC, 2018/00739-0 and 2022/08605-8 for RCS]; National Council for Scientific and Technological Development (CNPq) [Conselho Nacional de Desenvolvimento Científico e Tecnológico] [grant numbers 306672/2018-9 and 304368/2022-9 for RCC]; Coordination for the Improvement of Higher Education Personnel (CAPES) [Coordenação de Aperfeiçoamento de Pessoal de Nível Superior] [grant number 88887.604989/2021-00 for GVMRG].
摘要:mithraculus forceps是巴西岛屿上常见的物种,对其性别和种群结构的研究为了解其生命周期提供了依据。我们的目的是分析一个居住在阿尔卡特拉斯群岛的种群的相对生长,估计形态学上的性成熟,并调查两性二态性。采用人工避难和主动捕获法进行采样。分析了雄性的五种身体结构:甲壳和腹部宽度、前足长度和高度、性腺长度,用于相对生长和形态性成熟的估计。甲壳和前足形态存在两性异形现象。形态性成熟时,雄性壳宽10.12 mm,雌性壳宽10.66 mm。与居住在未受保护地区的其他M. forceps种群相比,在分析种群中观察到形态计量学方面的一些变化。由于它们的栖息地受到保护,来自恶魔岛的螃蟹可能会长得更大。这突出了海洋养护单位在保护重要生态过程方面的关键作用,并突出了为面临人为压力的其他地点和环境制定管理计划的重要性。关键词:异速生长恶魔岛十虫相对生长生产感谢LABCAM和LABIAQUA团队在动物收集过程中的帮助。感谢CSN博士和博士后奖学金(FAPESP 2019/ 00663 -3和2023/01445-8)。我们也感谢ICMBio (Instituto Chico Mendes de Biodiversidade)和IBAMA (Instituto Brasileiro de Meio Ambiente e dos Recursos Naturais Renováveis)根据国家和联邦监管框架SISBIO (Sistema de autoriza o e Informações em Biodiversidade)第69588 / 4/2020号批准为科学目的对野生动物进行原位取样和运输。数据可用性声明支持本研究结果的数据可根据合理要求从通讯作者CSN处获得。披露声明作者未报告潜在的利益冲突。本研究由圣保罗研究基金会(FAPESP) [funda o de Amparo Pesquisa do Estado de s o Paulo]资助[RCC资助号2018/13685-5,RCS资助号2018/00739-0和2022/08605-8];国家科学技术发展委员会(CNPq) [Conselho National de Desenvolvimento Científico e Tecnológico] [RCC的资助号为306672/2018-9和304368/2022-9];高等教育人员发展协调(CAPES)[协调高级教育人员发展组织][GVMRG资助号88887.604989/2021-00]。
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引用次数: 0
First evidence of trace metals and persistent organic contaminants from an endangered marine species, Mobula mobular (Bonattere, 1788) caught in Hellenic waters (Saronikos Gulf) 在希腊水域(萨罗尼科斯湾)捕获的一种濒危海洋物种——摩布拉(Bonattere, 1788)中首次发现微量金属和持久性有机污染物的证据。
4区 生物学 Q4 ECOLOGY Pub Date : 2023-09-28 DOI: 10.1080/17451000.2023.2256343
Leila Bordbar, Evangelia Strogyloudi, Ioannis Hatzianestis, Vasiliki Paraskevopoulou, Archontia Chatzispyrou
ABSTRACTThe number of cartilaginous fish is declining worldwide and contaminants are one of the primary stress factors in marine organisms. The spinetail devil ray or giant devil ray (Mobula mobular) is listed as an ‘Endangered species’ globally in the IUCN Red List of Threatened Species. One individual devil ray caught in Saronikos Gulf was tested for trace metals (Zn, Cu, Fe, Mn, Ni, Cr, Pb and Hg) and organochlorine contaminants (PCBs and DDTs). The concentrations of contaminants in the muscle tissue of the devil ray did not exceed safe human consumption limits. However, relatively elevated levels of trace metals and PCBs were measured in the liver and in particular the PCB congeners were five times higher than the European Commission limit. This study highlights the need for future research on the potential impacts of trace metals and organic contaminants on elasmobranchs and more specifically on threatened species.KEYWORDS: Spinetail devil raytrace metalsDDTsPCBsSaronikos Gulf AcknowledgementsThe authors would like to thank Elvira Plakidi and Stella Chourdaki from the Organic Chemistry Laboratory of the Hellenic Center for Marine Research – Institute of Oceanography for their help and kind advice in measuring organochlorine substances and Chryssa Roka for preparing the map.Disclosure statementNo potential conflict of interest was reported by the authors.
摘要在世界范围内,软骨鱼类的数量正在减少,污染物是海洋生物的主要胁迫因素之一。棘尾魔鬼鳐或巨型魔鬼鳐(Mobula mobular)在世界自然保护联盟(IUCN)濒危物种红色名录中被列为“濒危物种”。在萨罗尼科斯湾捕获的一条魔鬼鱼进行了微量金属(锌、铜、铁、锰、镍、铬、铅和汞)和有机氯污染物(多氯联苯和滴滴涕)的检测。魔鬼鱼肌肉组织中污染物的浓度没有超过人类食用的安全限度。然而,肝脏中微量金属和多氯联苯的含量相对较高,特别是多氯联苯同系物的含量比欧盟委员会的限值高出5倍。该研究强调了微量金属和有机污染物对板鳃类,特别是受威胁物种的潜在影响的进一步研究的必要性。作者要感谢希腊海洋研究所海洋研究中心有机化学实验室的Elvira Plakidi和Stella Chourdaki在测量有机氯物质方面提供的帮助和友好建议,并感谢Chryssa Roka为绘制该地图所做的工作。披露声明作者未报告潜在的利益冲突。
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引用次数: 0
Sertularioidea (Cnidaria, Hydrozoa) from the Guinea Current Large Marine Ecosystem (GCLME) 几内亚海流大海洋生态系统(GCLME)中的刺胞虫总科(刺胞虫,水螅虫)
4区 生物学 Q4 ECOLOGY Pub Date : 2023-09-19 DOI: 10.1080/17451000.2023.2253823
Marta Gil, Fran Ramil
ABSTRACTThis paper describes the study of a small collection of Sertularioidea Lamouroux, 1812 (Cnidaria, Hydrozoa) collected along the Guinea Current Large Marine Ecosystem (GCLME) during four oceanographic surveys performed between 2005 and 2008. The samples were collected at 12 stations located at depths between 18 and 359 m using a bottom trawl and a Petersen grab. A total of 112 colonies were identified, belonging to 13 species, nine genera, and three families. The family Sertulariidae showed the highest species richness, with 11 species, whereas the families Thyroscyphidae and Sertularellidae were represented only by one species each. In this manuscript is described the first report of Salacia tetracythara in the Eastern Atlantic, Abietinaria abietina in West Africa, and Salacia desmoides in the GCLME region. One species was only described to the genus level, and material of Dynamena dalmasi from Cape Verde was also examined as comparison material.KEYWORDS: North-west AfricaHydroidolinaLeptothecataSertulariidaeSertularellidaeThyroscyphidae AcknowledgementsWe express our gratitude to Professor Endre Willassen, Jon Anders Kongsrud and Katrine Kongshavn of the University Museum of Bergen, for their hospitality and assistance during our pleasant stay in their laboratory, to study the collections of North-west African hydroids. Special thanks go to Dr Ana Ramos for her ongoing support at all stages of this study, and also for her total involvement in benthic research in Africa.Disclosure statementNo potential conflict of interest was reported by the authors.Additional informationFundingThis study was performed within the framework of the Spanish ECOAFRIK project. This is ECOAFRIK publication number 53.
摘要本文对2005 ~ 2008年在几内亚海流大海洋生态系统(GCLME)进行的4次海洋调查中收集到的小群Sertularioidea Lamouroux, 1812(刺胞目,水螅目)进行了研究。使用底拖网和Petersen抓斗在深度为18至359米的12个站点收集样本。共鉴定出112个菌落,隶属于3科9属13种。沙蚕科(Sertulariidae)的物种丰富度最高,有11种,而甲状虫科(Thyroscyphidae)和沙蚕科(Sertularellidae)各有1种。本文首次报道了东大西洋的Salacia tetracythara,西非的Abietinaria abietina和GCLME地区的Salacia desmoides。其中一种只被描述到属水平,佛得角的Dynamena dalmasi的材料也作为比较材料进行了研究。感谢卑尔根大学博物馆的Endre Willassen教授、Jon Anders Kongsrud教授和Katrine Kongshavn教授,感谢他们的热情款待和帮助,使我们在他们的实验室愉快地研究了西北非洲的水生生物。特别感谢Ana Ramos博士对本研究各个阶段的持续支持,以及她对非洲底栖生物研究的全面参与。披露声明作者未报告潜在的利益冲突。本研究是在西班牙ECOAFRIK项目的框架内进行的。这是ECOAFRIK第53号出版物。
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引用次数: 0
Investigating the capture mechanism of scavenging gastropods in hanging-net fisheries 吊网渔业中食腐腹足动物捕获机制的研究
4区 生物学 Q4 ECOLOGY Pub Date : 2023-09-16 DOI: 10.1080/17451000.2023.2256345
Kostas Ganias, Alexandra Karatza, Dimitrios Lachouvaris
ABSTRACTThe current study aimed to elucidate the capture mechanism of B. brandaris and H. trunculus in two métiers of the Greek small-scale fisheries (SSF) that use trammel. The commercial and discarded catch from three commercial SSF boats was recorded in parallel to in-situ SCUBA diving observations and video analyses of the entangled catch at net retrieval. The abundance of gastropods in the nets was correlated with the abundance of captured fish in both métiers. This correlation was undoubtedly caused by the scavenging activity of gastropods on organisms captured in the lower portion of the net, such as combers, wrasses, and cuttlefish. Underwater observations revealed that the number of scavengers per fish increased gradually with the degree of fish consumption, whereas on-deck observations revealed that the foraging groups became malformed as soon as the flesh consumption was complete, as evidenced by the presence of fish bones in the absence of scavengers. Only a small percentage of the gastropods in the catch became entangled on the net, and that the majority of the gastropods were carried on deck by attaching to their entangled prey. The current study provided a clear explanation of the capture mechanism of the two muricids, as well as critical knowledge for their conservation.KEYWORDS: small-scale fisheriestrammel netsmuricidsdiscardsMediterranean AcknowledgmentsThe current study was carried out as part of the ‘ENVIRO_NETS: mitigating the environmental impact of trammel nets’ project, which was funded by the Greek Operational Programme for Fisheries and Sea (2014–2020), under the call for ‘innovation related to the conservation of marine living resources’ [MIS 5068822]. The authors would like to thank Chryssanthi Antoniadou and Katerina Charitonidou for their assistance with laboratory analysis and scientific diving and Maria Garagouni for curating the database. Konstantina Vei and Dimitris Pavlidis are thanked for their assistance at experimental fishing trials. A special thanks goes to the collaborating fishers for sharing their knowledge and insights throughout all stages of this work.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported by Greek Operational Programme for Fisheries and Sea (2014-2020),: [Grant Number MIS 5068822].
摘要本研究旨在探讨在希腊小规模渔业(SSF)中,使用诱捕器的两种渡口捕获布氏白僵菌(B. brandaris)和小圆僵菌(H. trunculus)的机理。同时记录了三艘商业SSF渔船的商业和废弃渔获物,以及现场水肺潜水观察和回收渔网时缠结渔获物的视频分析。网中腹足类动物的丰度与两个区域捕获的鱼的丰度相关。毫无疑问,这种相关性是由于腹足类动物对网底捕获的生物(如梳鱼、濑鱼和墨鱼)的清除活动造成的。水下观察显示,每条鱼的食腐动物数量随着鱼的消耗程度逐渐增加,而甲板上的观察显示,一旦肉的消耗完成,觅食群体就会变得畸形,这一点可以通过在没有食腐动物的情况下出现鱼骨来证明。捕获的腹足类动物中只有一小部分被网缠住,大多数腹足类动物是通过附着在被缠住的猎物上被带到甲板上的。本研究为这两种杀菌剂的捕获机制提供了清晰的解释,并为它们的保护提供了重要的知识。当前的研究是作为“ENVIRO_NETS:减轻拉梅网对环境的影响”项目的一部分进行的,该项目由希腊渔业和海洋业务计划(2014-2020)资助,呼吁“与海洋生物资源保护相关的创新”[MIS 5068822]。作者要感谢Chryssanthi Antoniadou和Katerina Charitonidou在实验室分析和科学潜水方面提供的帮助,并感谢Maria Garagouni管理数据库。感谢Konstantina Vei和Dimitris Pavlidis对实验性捕鱼试验的协助。特别感谢合作的渔民在这项工作的各个阶段分享他们的知识和见解。披露声明作者未报告潜在的利益冲突。本研究由希腊渔业和海洋业务计划(2014-2020)资助,[资助号MIS 5068822]。
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引用次数: 1
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Marine Biology Research
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