气候变化领域集成服务门户(CCPortal): Fluctuations in abundance of the striped venus clam Chamelea gallina in the southern Adriatic Sea (Central Mediterranean Sea): knowledge, gaps and insights for ecosystem-based fishery management

CCPortal

DOI	10.1007/s11160-024-09840-8
	Fluctuations in abundance of the striped venus clam Chamelea gallina in the southern Adriatic Sea (Central Mediterranean Sea): knowledge, gaps and insights for ecosystem-based fishery management
	Carlucci, R.; Cascione, D.; Ricci, P.; De Padova, D.; Dragone, V.; Cipriano, G.; Mossa, M.
发表日期	2024
ISSN	0960-3166
EISSN	1573-5184
起始页码	34
结束页码	2
卷号	34 期号:2
英文摘要	An assessment on the fluctuations in abundance of the striped venus clam (Chamelea gallina) in the southern Adriatic Sea (Central Mediterranean Sea), and the northern Gargano area, has been conducted through both historical information and recent data from monitoring surveys during the period 1997-2019. Production trends, conditions of the commercial stock biomass, and depth distribution pattern of juveniles and commercial sizes were analysed testing temporal differences. Moreover, the exploitation of the clam beds and recruitment events were investigated in 2018-2019. Changes in abundance were analysed using non-parametric tests for both juvenile (length class, LC < 22 mm) and commercial (LC >= 22 mm) fractions. Hydrodynamic changes, temperature and salinity variations were explored using a 3D hydrodynamic numerical model (MIKE 3 FM-HD) and statistical analysis, as well as changes in benthic assemblages impacted by hydraulic dredges were investigated through PERMANOVA and other multivariate analysis. The results showed a temporal decline of production and biomass of C. gallina during the 1997-2019 period, and a regression of the depth limit in the clams' distribution towards shallower waters. A significant reduction in juveniles was observed during 2018-2019 with a very limited recruitment. The fishing exploitation showed high impacts on the commercial stock and benthic assemblages in the summer of 2018. Overall, water currents were predominantly directed offshore in 2018, during the C. gallina spawning period. This could affect the larval dispersal and settlement on unsuitable bottoms. Anomalies in temperature (high peaks in August 2018, > 28 C-degrees) and salinity (low values in spring 2018, < 37 PSU) could have induced stress and mortality events on the entire clam bed in the study area. This first study highlights the need to integrate environmental information in the assessment of commercial stocks of clams in the Adriatic Sea, to better understand climate change effects on the fluctuations and to support effective ecosystem-based fishery management.
英文关键词	Juvenile recruitment; Hydrodynamic changes; Benthic assemblage; Hydraulic dredges; Clam fishery regulations; Length-frequency distribution
语种	英语
WOS研究方向	Fisheries ; Marine & Freshwater Biology
WOS类目	Fisheries ; Marine & Freshwater Biology
WOS记录号	WOS:001177411100001
来源期刊	REVIEWS IN FISH BIOLOGY AND FISHERIES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/304144
作者单位	Universita degli Studi di Bari Aldo Moro; CoNISMa; Politecnico di Bari; Consiglio Nazionale delle Ricerche (CNR); Istituto di Ricerca per la Protezione Idrogeologica (IRPI-CNR)
推荐引用方式 GB/T 7714	Carlucci, R.,Cascione, D.,Ricci, P.,et al. Fluctuations in abundance of the striped venus clam Chamelea gallina in the southern Adriatic Sea (Central Mediterranean Sea): knowledge, gaps and insights for ecosystem-based fishery management[J],2024,34(2).
APA	Carlucci, R..,Cascione, D..,Ricci, P..,De Padova, D..,Dragone, V..,...&Mossa, M..(2024).Fluctuations in abundance of the striped venus clam Chamelea gallina in the southern Adriatic Sea (Central Mediterranean Sea): knowledge, gaps and insights for ecosystem-based fishery management.REVIEWS IN FISH BIOLOGY AND FISHERIES,34(2).
MLA	Carlucci, R.,et al."Fluctuations in abundance of the striped venus clam Chamelea gallina in the southern Adriatic Sea (Central Mediterranean Sea): knowledge, gaps and insights for ecosystem-based fishery management".REVIEWS IN FISH BIOLOGY AND FISHERIES 34.2(2024).