Mediterranean Marine Science最新文献_第4页

Coralligenous cliffs: distribution and extent along the Tuscany coasts and spatial variability of the associated assemblages 珊瑚悬崖:沿托斯卡纳海岸的分布和范围及其相关组合的空间变异

IF 2.8 3区环境科学与生态学

Mediterranean Marine Science Pub Date : 2023-06-21 DOI: 10.12681/mms.32119

L. Piazzi, E. Cecchi, M. Cinti, Giacomo Marino, A. Nicastro, L. Pacciardi, M. Pertusati, Michela Ria, A. D. De Biasi

{"title":"Coralligenous cliffs: distribution and extent along the Tuscany coasts and spatial variability of the associated assemblages","authors":"L. Piazzi, E. Cecchi, M. Cinti, Giacomo Marino, A. Nicastro, L. Pacciardi, M. Pertusati, Michela Ria, A. D. De Biasi","doi":"10.12681/mms.32119","DOIUrl":"https://doi.org/10.12681/mms.32119","url":null,"abstract":"Coralligenous reefs are the main biogenic constructions of the Mediterranean Sea. The two main coralligenous morphologies are cliffs and platforms. Coralligenous cliffs mostly develop in shallower waters (about 20-50 m) on vertical/sub vertical rocky substrates. Coralligenous platforms are mostly distributed on horizontal substrates below 40-50 m depth on detritic bottoms and rocky outcrops of the continental shelf. The present study aims at contributing to the knowledge of coralligenous cliffs through the assessment of their distribution and extent in a wide geographic zone of northwestern Mediterranean Sea, focusing on the structure and the spatial variability of the associated assemblages. To achieve these objectives, coralligenous cliffs of Tuscany coasts were mapped through Multibeam and Remotely Operated Vehicles. The area of coralligenous cliffs was also manually calculated for each study site using linear extent and bathymetric range of the habitat. In addition, the structure of the associated assemblages was investigated by a multifactorial sampling design taking into account spatial scales ranging from meters to tens of kilometres. Coralligenous cliffs were present in all the study sites, with a linear extent of about 20% of Tuscany’s rocky coastline and an area of about 20% of the Tuscan coralligenous reefs. The difference between data manually calculated and those obtained by Quantum- GIS software was about 33% of the total area. A continental-to-island gradient and a latitudinal gradient were the main factors driving the structure of the associated assemblages. Results highlighted that coralligenous cliffs represent a considerable part of circalittoral biogenic habitat, suggesting that their relevance may be greater than what normally emerges from seabed mapping and that they should be considered separately in monitoring programs, impact assessment studies and management plans.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48481088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New combinations of two Pseudobranchiomma species (Annelida: Sabellidae): The difficulty in establishing a boundary layer among genera within the Sabellinae 两个假鳃瘤物种的新组合（环节动物门：Sabellidae）：在Sabellinae属之间建立边界层的困难

IF 2.8 3区环境科学与生态学

Mediterranean Marine Science Pub Date : 2023-06-21 DOI: 10.12681/mms.32610

M. Putignano, M. Çınar, C. Pelaprat, A. Giangrande

引用次数: 0

The impact of LNG offshore terminal on sea temperature and sea currents in the northern Adriatic Sea LNG海上接收站对亚得里亚海北部海温和海流的影响

IF 2.8 3区环境科学与生态学

Mediterranean Marine Science Pub Date : 2023-06-20 DOI: 10.12681/mms.30913

Gorana Jelić Mrc̓elić, Majda Jurić, N. Supić, MaMATHIEU thieu DUTOUR SIKIRIĆ

{"title":"The impact of LNG offshore terminal on sea temperature and sea currents in the northern Adriatic Sea","authors":"Gorana Jelić Mrc̓elić, Majda Jurić, N. Supić, MaMATHIEU thieu DUTOUR SIKIRIĆ","doi":"10.12681/mms.30913","DOIUrl":"https://doi.org/10.12681/mms.30913","url":null,"abstract":"The aim of this paper is to simulate the impact of a potential offshore LNG terminal on sea temperature (in autumn and spring/ summer) and sea currents (in autumn/winter) at three different depths (at the sea surface, at 25 m depth and at the seabed) in the northern Adriatic Sea from 14 November 2015 to 06 August 2016 using the Regional Ocean Modelling System (ROMS) model. The location of the potential offshore LNG terminal Istria (in the northern Adriatic Sea) was selected using the visual PROMETHEE method. The potential LNG terminal uses seawater for LNG heating and the seawater cooled to a temperature of 9°C returns to the marine environment. Although the differences in sea temperature with and without the discharge fit within normal temperature ranges, the simulations show that the discharge changed the speed and direction of sea currents at the sea surface not only in the wider northern Adriatic, but in the entire Adriatic. This is probably due to the specific circulation in the Adriatic, where cold water affects the geostrophic balance, an important part of the circulation field that depends on density (a function of salinity and temperature). Atmospheric conditions in the broader vicinity of the LNG terminal would also be affected by redistribution of air-sea fluxes due to changes in surface temperature. Changes in circulation would alter environmental conditions by redistributing nutrients, oxygen, etc. Further multi-year simulations of changes in the circulation system are needed, but other physical parameters (density, salinity, river inflow...) should also be included in the simulations to determine the cumulative impact of a potential LNG terminal on the marine environment.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45325601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acoustic scattering properties of seagrass: In/ex-situ measurements of Posidonia oceanica 海草的声散射特性:大洋波西多尼亚的原位/非原位测量

3区环境科学与生态学

Mediterranean Marine Science Pub Date : 2023-05-30 DOI: 10.12681/mms.32324

Erhan MUTLU, Cansu Olguner

{"title":"Acoustic scattering properties of seagrass: In/ex-situ measurements of Posidonia oceanica","authors":"Erhan MUTLU, Cansu Olguner","doi":"10.12681/mms.32324","DOIUrl":"https://doi.org/10.12681/mms.32324","url":null,"abstract":"The marine prairies are paramount to the marine ecosystem playing a crucial role in various ways. Owing to the global atmospheric events inducing hydrospheric changes, marine seaweeds have been negatively affected and are vulnerable. Conventional methods (SCUBA), which were previously used to collect seagrasses, have become a destructive method for deriving unrecoverable damages for their stocks and have been replaced with remote sensing methods. Considering the advantages of the acoustic methods, two different in/ex-situ experiments were conducted to ground-truth the common seagrass, P. oceanica, in time and space of the Turkish Mediterranean water in 2011-2012 using a scientific echosounder with a split beam transducer operated at a frequency of 206 kHz. After the separation of the seagrass from spurious scatterers, the acoustic parameters (Sa: area backscattering strength, Sv: volume backscattering strength, and TS: Target Strength) were correlated and regressed with the biometric variables (Leaf Area Index, biomass, volume, length, width, diameter, or thickness) of different parts (leaf, rhizome, and sheath) of the seagrass. Estimation of biometrics by acoustic methods has been considered a challenge up to now. Statistical relationships between biometrics and acoustics were precisely examined for the species. The relationships were linearly established in the acoustic geometric region. There was a seasonal difference in the relationships. Their rhizomes and sheaths were considered unstable non-linear parts and remained unexplained for the acoustic response. Acoustic response to the leaf density (d, g cm-3), which was a distinguished component in the reflection, was found to be dependent on the seasonal biological activities of P. oceanica. Posidonia, which has a d greater than 1 g/cm3, produced the geometric region. The present study was the first attempt to establish the relationships of the seagrass under protection, and can decrease usage of destructive methods for future studies.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":"186 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135478138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Physiological responses of the fan mussel Pinna nobilis to temperature: ecological and captivity implications 扇贝对温度的生理反应:生态学和圈养意义

3区环境科学与生态学

Mediterranean Marine Science Pub Date : 2023-05-29 DOI: 10.12681/mms.31050

SEBASTIAN HERNANDIS, IRRINTZI IBARROLA, JOSE TENA-MEDIALDEA, MARINA ALBENTOSA, PATRICIA PRADO, MAITE VÁZQUEZ-LUIS, JOSE RAFAEL GARCÍA-MARCH

{"title":"Physiological responses of the fan mussel Pinna nobilis to temperature: ecological and captivity implications","authors":"SEBASTIAN HERNANDIS, IRRINTZI IBARROLA, JOSE TENA-MEDIALDEA, MARINA ALBENTOSA, PATRICIA PRADO, MAITE VÁZQUEZ-LUIS, JOSE RAFAEL GARCÍA-MARCH","doi":"10.12681/mms.31050","DOIUrl":"https://doi.org/10.12681/mms.31050","url":null,"abstract":"The fan mussel Pinna nobilis is experiencing a mass mortality event throughout the Mediterranean Sea. The survival of the remaining isolated populations and the maintenance and reproduction of individuals in captivity could determine the future of the species. This paper examines the clearance rate (CR) and oxygen consumption (VO2) of fan mussel individuals measured under 5 different temperatures (8.5, 14, 18, 23 and 28ºC). The measurements of both physiological variables revealed a threshold limit of thermal tolerance at both extreme temperatures, indicating the critical situation of the remaining populations, which are located in coastal lagoons and shallow bays where these extreme temperatures usually occur. Besides, the high clearance rates observed highlight the significant ecosystem service provided by the species in terms of water filtration, especially in confined waters with low renewal rates. Routine control of the clearance rate as an early warning system is proposed for detecting ailing individuals. Such a system could also be used to improve captivity conditions.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135741154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Assessment of macroalgal communities on shallow rocky reefs in the Aegean Sea indicates an impoverished ecological status 对爱琴海浅层岩礁上大型藻类群落的评价表明，该地区的生态状况很差

3区环境科学与生态学

Mediterranean Marine Science Pub Date : 2023-05-26 DOI: 10.12681/mms.31034

Savin, Sini, XYNOGALA, Lioupa, VOUGIOUKALOU, STAMATIS, Noè, RAGKOUSIS, GEROVASILEIOU, DAILIANIS, KATSANEVAKIS

{"title":"Assessment of macroalgal communities on shallow rocky reefs in the Aegean Sea indicates an impoverished ecological status","authors":"Savin, Sini, XYNOGALA, Lioupa, VOUGIOUKALOU, STAMATIS, Noè, RAGKOUSIS, GEROVASILEIOU, DAILIANIS, KATSANEVAKIS","doi":"10.12681/mms.31034","DOIUrl":"https://doi.org/10.12681/mms.31034","url":null,"abstract":"Mediterranean rocky reefs are undergoing regime shifts, from a structurally complex and diverse state dominated by canopy- forming macroalgae to a degraded one characterised by low-lying turf or encrusting macroalgal species, due to increased anthropogenic pressure and climate change. Using data gathered from 89 sites across the entire Aegean Sea, this study aims to provide the most comprehensive health status assessment of shallow rocky reefs in the area, based on macroalgal community structure. Overall, 2520 benthic images were collected through photoquadrat sampling at 0, 5 and, 15 m depth. Five macroalgal and seven invertebrate morphofunctional groups, along with four substrate categories, were considered for community structure description. Health status was assessed using the reef-EBQI and EEI-c indices. Results indicate turf as the most widespread macroalgal group (36.8% average area cover), followed by encrusting calcareous (16.6%), shrubby (12.7%), articulated calcareous (8.9%), and canopy-forming algae (3.7%). Bare rock also occupied a substantial surface area (9.0%) with highest cover (13.8%) at 5 m. The area cover of canopy-forming algae was particularly low, ranging from 10% at 0 m to 0.1% at 15 m depth, on average. All depths pooled, according to the reef-EBQI index, the ecological status of the Aegean Sea was estimated to be ‘Bad’, mainly due to the bad ecological status of the 5 and 15 m stations. At 0 m depth, the status of the Aegean Sea was ranked ‘Moderate’ according to the reef-EBQI index and ‘Good’ according to the EEI-c index. The results underline the importance of considering a wide depth range when assessing the health status of rocky reef communities.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":"346 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135996323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

The use of an unmanned aerial vehicle to investigate habitat use and behavior of invasive blue crab in Mediterranean microhabitats 利用无人机调查地中海微生境中入侵蓝蟹的生境利用和行为

IF 2.8 3区环境科学与生态学

Mediterranean Marine Science Pub Date : 2023-05-16 DOI: 10.12681/mms.31332

G. Marchessaux, Sergio Bizzarri, N. Marsiglia, Nicolo Ponzè, G. Sarà

{"title":"The use of an unmanned aerial vehicle to investigate habitat use and behavior of invasive blue crab in Mediterranean microhabitats","authors":"G. Marchessaux, Sergio Bizzarri, N. Marsiglia, Nicolo Ponzè, G. Sarà","doi":"10.12681/mms.31332","DOIUrl":"https://doi.org/10.12681/mms.31332","url":null,"abstract":"The blue crab Callinectes sapidus has shown an immense capacity to adapt to new habitats in the Mediterranean Sea. Followingthe numerous reports of its proliferation along western Sicily, an investigation was conducted to identify any existing populations. In August 2021, a population of blue crabs was found in the natural reserve of Trapani which includes a large area of restored saltmarshes. In this study, by developing a tracking system using Unmanned Aerial Vehicles (UAV), we studied (i) the behavior of blue crabs on an hourly scale, and (ii) the weekly position of blue crabs in the saltmarshes to determine substrate preference. This study provides a new approach to better understand C. sapidus’ habitat use and their potential impact on local biodiversity. Blue crab activity was found to increase with temperature and tidal height, with a peak in activity observed at high tide and at maximum temperatures: the mean speed (m h-1) was higher (12.1 ± 8.7 m h-1) at T > 28 °C than at T = 23.7 °C (2.0 ± 3.2 m h-1). Considering habitat use, in 49 ± 13 % of the cases, blue crabs were observed on the sand, while 21 ± 14 % in the Cymodocea meadows, and 30 ± 15 % in the Ruppia meadows. These microhabitats provide a refuge for C. sapidus and should be prioritized and studied before management plans are designed and implemented to manage this important invasive species.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47919270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fish food-web structure of a southern Mediterranean lagoon (El Mellah Lagoon, Algeria): what we can learn from stable isotope analysis 南地中海泻湖(阿尔及利亚El Mellah泻湖)鱼类食物网结构:我们可以从稳定同位素分析中学到什么

IF 2.8 3区环境科学与生态学

Mediterranean Marine Science Pub Date : 2023-05-12 DOI: 10.12681/mms.30180

J. Denis, Rym Bouaziz, Brahim Draredja, Jean-Marie Munaron, Abdellah BORHANE DJEBAR, R. Amara, F. Le Loc’h, F. Ben Rais Lasram

{"title":"Fish food-web structure of a southern Mediterranean lagoon (El Mellah Lagoon, Algeria): what we can learn from stable isotope analysis","authors":"J. Denis, Rym Bouaziz, Brahim Draredja, Jean-Marie Munaron, Abdellah BORHANE DJEBAR, R. Amara, F. Le Loc’h, F. Ben Rais Lasram","doi":"10.12681/mms.30180","DOIUrl":"https://doi.org/10.12681/mms.30180","url":null,"abstract":"The structure of a fish food-web was described for the first time in a coastal lagoon in the southern Mediterranean Sea by analysing stable carbon and nitrogen isotopes of fish species and their potential food sources. The El Mellah Lagoon (EML) located in extreme north-eastern Algeria, is the only coastal lagoon in the southern Mediterranean with low human pressure due to few human activities and its protected status under the Ramsar Convention. We investigated the structure of the fish food-web in the spring at four stations in the lagoon that differed in their proximity to rivers and the channel, which connects to the sea. The results provided insight into ecological functions of EML as a feeding area for all fish species caught in the lagoon, in particular marine migrant juveniles and resident species. The δ13C results highlighted the importance of marine organic matter on the functioning of the EML fish food-web, to which organic matter in marine sediments and likely microphytobenthos contribute most. Our study also revealed the importance of seagrass (Ruppia sp.) for detritivorous fish (i.e., Mugilidae species) and for their potential to shelter a wide variety of benthic invertebrates that are potential food sources for benthivorous fish. Our study revealed the small influence of freshwater inputs on the functioning of the EML food-web and that juvenile marine fish may use the lagoon for reasons other than feeding, most likely to avoid predation and obtain physiological advantages.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44877082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New Alien Mediterranean Biodiversity Records (2023b) 新外来地中海生物多样性记录(2023b)

3区环境科学与生态学

Mediterranean Marine Science Pub Date : 2023-05-12 DOI: 10.12681/mms.34474

COLLECTIVE ARTICLE A

引用次数: 0

High bycatch rate of the coral Cladocora caespitosa offsets the low discards ratio in Thermaikos Gulf gillnet fishery 在Thermaikos海湾刺网渔业中，Caesapitosa珊瑚的高副渔获率抵消了低抛弃率

IF 2.8 3区环境科学与生态学

Mediterranean Marine Science Pub Date : 2023-05-11 DOI: 10.12681/mms.31197

K. Ganias, Aikaterini Zafeiriadou, M. Garagouni, C. Antoniadou

{"title":"High bycatch rate of the coral Cladocora caespitosa offsets the low discards ratio in Thermaikos Gulf gillnet fishery","authors":"K. Ganias, Aikaterini Zafeiriadou, M. Garagouni, C. Antoniadou","doi":"10.12681/mms.31197","DOIUrl":"https://doi.org/10.12681/mms.31197","url":null,"abstract":"While hanging nets may have fewer overall environmental impacts than towed gears, they still catch unwanted species and sizes, which are then discarded. Gillnets are one of the most common types of nets used in Mediterranean small-scale fisheries, with commercial catches and discards containing a diverse range of fish and invertebrate species. In this study, the catch profile of gillnets in the Thermaikos Gulf (NE Mediterranean) was analyzed with a focus on the discarding of species with unfavorable conservation status, such as the Mediterranean-endemic scleractinian coral Cladocora caespitosa, which is listed as endangered due to declining population sizes. Our survey was conducted over two seasons (May to October in 2020 and 2021) and included 69 fishing trials under realistic fishing conditions. In general, gillnets exhibited a relatively low discards ratio (17.2%; 7.1% when only fish were considered) and a low prevalence and capture intensity of endangered or threatened species; during the entire survey, only one chondrichthyan was captured (1 specimen of Raja radula), while only two out of 54 fish species were of vulnerable IUCN status. These advantages were offset in part by the high catchability of C. caespitosa colonies, which occurred in 61% of hauls and accounted for 53% of total invertebrate biomass and 30% of total discarded biomass. The likelihood of hauling living colonies of C. caespitosa was higher when fishing over known coral beds (81% vs. 43%), and the overall probability of hauling C. caespitosa in any state was 18% higher over coral beds, suggesting that gillnets frequently detach colonies from the seafloor, which are then dispersed over a larger area as fragments with probably low survival potential. Our findings highlight the importance of identifying C. caespitosa beds so that fishermen avoid setting their nets in these areas, provided that they are well-informed and educated about the ecological significance of this endemic, threatened, and ecologically important species.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46775424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1