Scientia Marina最新文献_第6页

Fishery dynamics of blue whiting, Micromesistius poutassou, a highly discarded bycatch species in the NW Mediterranean Sea 蓝白鱼的渔业动态，Micromesistius poutassou，一个高度废弃的副渔获物种在地中海西北部

IF 1.4 4区生物学

Scientia Marina Pub Date : 2022-04-07 DOI: 10.3989/scimar.05240.025

J. Mir-Arguimbau, Paloma Martín, M. Balcells, Joan Sala-Coromina, A. Sabatés

引用次数: 4

Small-scale fisheries in Madeira: recreational vs artisanal fisheries 马德拉岛的小规模渔业:休闲渔业与手工渔业

IF 1.4 4区生物学

Scientia Marina Pub Date : 2021-12-07 DOI: 10.3989/scimar.05180.022

Roi Martínez-Escauriaza, F. Gizzi, L. Gouveia, N. Gouveia, M. Hermida

{"title":"Small-scale fisheries in Madeira: recreational vs artisanal fisheries","authors":"Roi Martínez-Escauriaza, F. Gizzi, L. Gouveia, N. Gouveia, M. Hermida","doi":"10.3989/scimar.05180.022","DOIUrl":"https://doi.org/10.3989/scimar.05180.022","url":null,"abstract":"Small-scale recreational and artisanal fisheries are popular activities in the Autonomous Region of Madeira, and to date no information is available on their impact on regional coastal ecosystems. Through fishers’ surveys and official registers of fish landings, we described and characterized these fisheries in Madeira, comparing artisanal and recreational fisheries. In 2017, artisanal boats landed 91 species in fishing ports, while recreational catches landed 58 species. The most frequent catches were Dentex gibbosus, Phycis phycis and Pagrus pagrus for artisanal fishery and P. pagrus, Serranus atricauda and Diplodus spp. for recreational fishery. Comparing the same techniques, artisanal fishery always showed higher catch per unit effort values than recreational boat fishery. Nevertheless, the low number of artisanal fishery boats in comparison with the recreational ones reflected the lower total landings of the artisanal fishery, which in 2017 were 62.3 t, compared with the 509.8 t estimated catches for the recreational fishery. Though the estimated recreational fishing data were based on surveys and thus subject to various biases, this activity seems to negatively affect coastal ecosystems and, together with artisanal fishing, exerts a combined pressure on targeted species. Improved legislation for both fisheries is essential for an appropriate management of resources.","PeriodicalId":21600,"journal":{"name":"Scientia Marina","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2021-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43966094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Geochronology and palaeoclimatic context of submerged siliciclastic beachrock formation in the western Mediterranean Sea 地中海西部水下硅质碎屑海滩岩形成的地质年代和古气候背景

IF 1.4 4区生物学

Scientia Marina Pub Date : 2021-12-07 DOI: 10.3989/scimar.05110.020

Carles Roqué Pau, Mario Zarroca Hernández, Rogelio Linares Santiago

{"title":"Geochronology and palaeoclimatic context of submerged siliciclastic beachrock formation in the western Mediterranean Sea","authors":"Carles Roqué Pau, Mario Zarroca Hernández, Rogelio Linares Santiago","doi":"10.3989/scimar.05110.020","DOIUrl":"https://doi.org/10.3989/scimar.05110.020","url":null,"abstract":"This article describes the geomorphological and petrological characteristics of 19 submerged beachrocks located on the north Catalan coast (western Mediterranean Sea). Their length ranges between 8 and 1039 m, their width between 1.5 and 86.5 m and their thickness between 0.4 and 3.25 m. They are siliciclastic beachrocks consisting of well-rounded gravels with a very coarse sand matrix, and they have a low proportion of bioclasts (<1%). Cementation occurred in the swash zone and adjacent foreshore due to the precipitation of high magnesium calcite. From absolute dates (14C and optically stimulated luminescence) and anthropic artifacts, three phases of formation attributable to the Late Holocene were identified. Phase I corresponds to the warm and humid Roman Period and was recorded at a level below -3.75 m mean sea level (MSL). Phase II corresponds to the warm and arid Medieval Climate Anomaly and was recorded at +0.25 m to -2.5 m MSL. Phase III corresponds to the Little Ice Age and Industrial Period and was recorded at levels ranging from +0.5 m to -3.0 m MSL. Good temporal correspondence between the chronology of the cementation phases and warm and/or dry palaeoclimatic conditions can be established.","PeriodicalId":21600,"journal":{"name":"Scientia Marina","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2021-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48078425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Age and growth of pompano, Trachinotus ovatus, from the Strait of Messina (central Mediterranean Sea) 墨西拿海峡(地中海中部)梭鱼的年龄和生长

IF 1.4 4区生物学

Scientia Marina Pub Date : 2021-09-02 DOI: 10.3989/scimar.05167.016

D. Malara, F. Longo, L. Pagano, M. Stipa, T. Romeo, F. Andaloro, S. Greco, P. Battaglia

{"title":"Age and growth of pompano, Trachinotus ovatus, from the Strait of Messina (central Mediterranean Sea)","authors":"D. Malara, F. Longo, L. Pagano, M. Stipa, T. Romeo, F. Andaloro, S. Greco, P. Battaglia","doi":"10.3989/scimar.05167.016","DOIUrl":"https://doi.org/10.3989/scimar.05167.016","url":null,"abstract":"This is the first paper to provide detailed information on the age and growth of Trachinotus ovatus. The size of the 244 individuals collected in the Strait of Messina ranged from 2.7 to 30.4 cm in fork length (LF) and 0.31 to 508.6 g in body mass (M). The relationship between these parameters (M - LF) was investigated and showed a good fit. Age estimation based on vertebrae and otoliths yielded similar results, suggesting a maximum age of five years. However, the precision and accuracy tests, such as percentage of agreement (PA), mean coefficient of variation (ACV) and average percent error (APE) indicated that the otolith readings (97.83% PA, 0.54% ACV and 0.38% APE) were more reliable for age estimation than vertebrae readings (82.17% PA, 5.33% ACV and 3.77% APE). The multi-model inference approach allowed us to compare different non-linear growth models. The von Bertalanffy model (L∞=29.139, k=0.496 and t0=−0.347) fitted the length-at-age data best. This species has a relatively rapid growth and an estimated longevity of five to seven years. This information could be used for management and first stock assessment studies on T. ovatus in the Mediterranean Sea.","PeriodicalId":21600,"journal":{"name":"Scientia Marina","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2021-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48637636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Intra- and interspecific discrimination of Scorpaena species from the Aegean, Black, Mediterranean and Marmara seas 爱琴海、黑海、地中海和马尔马拉海Scorpaena物种的种内和种间差异

IF 1.4 4区生物学

Scientia Marina Pub Date : 2021-09-02 DOI: 10.3989/scimar.05185.018

S. Yedier, D. Bostancı

{"title":"Intra- and interspecific discrimination of Scorpaena species from the Aegean, Black, Mediterranean and Marmara seas","authors":"S. Yedier, D. Bostancı","doi":"10.3989/scimar.05185.018","DOIUrl":"https://doi.org/10.3989/scimar.05185.018","url":null,"abstract":"This study was conducted to discriminate five Scorpaena species and populations of each species according to morphometric characters. A total of 1865 fish specimens were collected from the eight locations in the four Turkish seas: Antalya, Balıkesir, Çanakkale, Hatay, İzmir, Marmara Ereğlisi, Ordu and Şile. In the study, 26 morphometric traits were measured for intra- and interspecific discrimination of five Scorpaena species. The data were subjected to analysis of variance, principal components analysis (PCA) and canonical discriminant analysis. As results of the PCA, 10 traits for S. maderensis and S. scrofa, 12 traits for S. elongata and 13 traits for S. notata and S. porcus were found to be important for intraspcific discrimination. The overall classification scores of intraspecific discrimination were determined as 94.6% for S. elongata, 90.5% for S. maderensis, 96.7% for S. notata, 96.5% for S. porcus and 92.2% for S. scrofa. The PCA indicated that 13 morphometric measurements among the 26 traits are important in the interspecific discrimination of five Scorpaena species. The cross-validated canonical discriminant analysis was correctly classified as 97.4% at the Scorpaena species level. The discrimination of correctly classified species ranged from 94.8% to 100%. Finally, we demonstrated that the morphometric characters examined in the present study can be used successfully in the intra- and interspecific discrimination of Scorpaena species from different habitats.","PeriodicalId":21600,"journal":{"name":"Scientia Marina","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2021-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44621679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Distribution and changes in the sbGnRH system in Rastrelliger brachysoma males during the breeding season 繁殖季节短吻短吻龙雄蛛sbGnRH系统的分布和变化

IF 1.4 4区生物学

Scientia Marina Pub Date : 2021-09-02 DOI: 10.3989/scimar.05023.017

S. Senarat, J. Kettratad, W. Jiraungkoorskul, N. Kangwanrangsan, M. Amano, A. Shimizu, F. Plumley, Sasipong Tipdomrongpong

{"title":"Distribution and changes in the sbGnRH system in Rastrelliger brachysoma males during the breeding season","authors":"S. Senarat, J. Kettratad, W. Jiraungkoorskul, N. Kangwanrangsan, M. Amano, A. Shimizu, F. Plumley, Sasipong Tipdomrongpong","doi":"10.3989/scimar.05023.017","DOIUrl":"https://doi.org/10.3989/scimar.05023.017","url":null,"abstract":"Rastrelliger brachysoma is a mariculture candidate species, but reproduction in captive fish has been problematic. This report examines the difference in the HPG axis, the neuroendocrine system and the development of reproductive tissues between captive vs. wild male R. brachysoma. The gonadosomatic index (GSI) of sexually mature male wild R. brachysoma was 1.12±0.34 and 1.94±0.26 during the non-breeding and breeding seasons, respectively. Captive R. brachysoma had a GSI of 1.88±0.17. All wild R. brachysoma were in the late spermatogenic stage irrespective of seasons. Immunostaining results showed that sbGnRH-immunoreactive neurons were distributed in three areas of the brain, namely the nucleus periventricularis, nucleus preopticus and nucleus lateralis tuberis. Follicle stimulating hormone and luteinizing hormone immunoreactivities were also observed in the pituitary gland. The levels of brain sbGnRH and GtH mRNA were not significantly different between the non-breeding and breeding seasons, but captive fish displayed (times or percent difference) lower mRNA levels than wild fish. These results suggest that these hormones control the testicular development in R. brachysoma and that the impaired reproduction in captivity may be due to their relative lower expression levels of follicle stimulating hormone and luteinizing hormone genes.","PeriodicalId":21600,"journal":{"name":"Scientia Marina","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2021-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43975694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of techniques for counting prokaryotes in marine planktonic and biofilm samples 海洋浮游生物与生物膜样品中原核生物计数技术的比较

IF 1.4 4区生物学

Scientia Marina Pub Date : 2021-09-02 DOI: 10.3989/scimar.05117.019

Vanessa Ochi Agostini, Letícia Terres Rodrigues, A. Macêdo, E. Muxagata

{"title":"Comparison of techniques for counting prokaryotes in marine planktonic and biofilm samples","authors":"Vanessa Ochi Agostini, Letícia Terres Rodrigues, A. Macêdo, E. Muxagata","doi":"10.3989/scimar.05117.019","DOIUrl":"https://doi.org/10.3989/scimar.05117.019","url":null,"abstract":"Though a large number of techniques are available for the study of aquatic bacteria, the aim of this study was to establish a technique for analysing free-living and biofilm prokaryotic cells through laboratory assays. In particular, we wished to analyse the efficiency of ultrasound to detach and disrupt biofilm, to obtain an efficient stain treatment for quantifying free-living and biofilm prokaryotes in flow cytometry (FC), and to compare epifluorescence microscopy (EFM), scanning electron microscopy (SEM) and FC for quantifying free-living and biofilm prokaryotes#. Marine-grade plywood substrates were immersed in natural marine water that was conditioned for 12 days. At 6 and 12 days, water aliquots and substrates were removed to estimate free-living and biofilm prokaryote density. Ultrasound efficiently removed marine biofilm from substrates (up to 94%) without cell damage. FC analysis (unstained) reliably quantified marine plankton and young or mature biofilm prokaryotes compared with other staining (acridine orange, 4′,6-diamidino-2-phenylindole, propidium iodide and green fluorescent nucleic acid), EFM or SEM techniques. FC and SEM achieved similar results, while a high variability was observed in the EFM technique. FC was faster and more precise than SEM because the count is not dependent on the observer.","PeriodicalId":21600,"journal":{"name":"Scientia Marina","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2021-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41862701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Validating the growth increment periodicity in the otoliths of three small progenetic gobies 验证三个小的前生虾虎鱼耳石的生长增量周期性

IF 1.4 4区生物学

Scientia Marina Pub Date : 2021-09-02 DOI: 10.3989/scimar.05162.015

Sílvia Pérez-Mayol, Itziar Álvarez, Inmmaculada Riera-Batle, A. Grau, B. Morales-Nin

引用次数: 0

The fish family Muraenidae: an ideal group for testing at small-scale the coherency of Macaronesia as a biogeographic unit, with the first report on separate fishery statistics Muraenidae鱼科：一个理想的小规模测试Macaronesia作为生物地理学单位的一致性的群体，首次报告了单独的渔业统计数据

IF 1.4 4区生物学

Scientia Marina Pub Date : 2021-09-02 DOI: 10.3989/scimar.05096.014

José A. González, S. Correia, S. Jiménez, C. Monteiro, J. Delgado, M. Pinho, J. M. Lorenzo, G. González-Lorenzo

引用次数: 1

Relationship between the female attendance pattern and pup growth rate in the South American sea lion (Carnivora) 南美海狮(食肉目)雌性出勤模式与幼崽生长率的关系

IF 1.4 4区生物学

Scientia Marina Pub Date : 2021-06-11 DOI: 10.3989/SCIMAR.05128.008

M. Drago, L. Cardona, V. Franco‐Trecu, Federico G. Riet‐Sapriza, E. Crespo, N. García, P. Inchausti

{"title":"Relationship between the female attendance pattern and pup growth rate in the South American sea lion (Carnivora)","authors":"M. Drago, L. Cardona, V. Franco‐Trecu, Federico G. Riet‐Sapriza, E. Crespo, N. García, P. Inchausti","doi":"10.3989/SCIMAR.05128.008","DOIUrl":"https://doi.org/10.3989/SCIMAR.05128.008","url":null,"abstract":"1 IRBio and Department of Evolutionary Biology, Ecology and Environmental Science, University of Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain. (MD) (Corresponding author) E-mail: m.drago@ub.edu. ORCID-iD: https://orcid.org/0000-0003-2764-9849 (LC) E-mail: luis.cardona@ub.edu. ORCID-iD: https://orcid.org/0000-0002-7892-1323 2 Departamento de Ecología y Evolución, Centro Universitario Regional Este (CURE), Universidad de la República (UdeLaR), C/ Tacuarembó s/n, 20000 Maldonado, Uruguay. (PI) E-mail: pablo.inchausti.f@gmail.com. ORCID-iD: https://orcid.org/0000-0002-3498-5894 3 Departamento de Ecología y Evolución, Facultad de Ciencias, Universidad de la República (UdeLaR), Iguá 4225, 11400 Montevideo, Uruguay. (VF-T) E-mail: vfranco-trecu@fcien.edu.uy. ORCID-iD: https://orcid.org/0000-0003-1791-010X 4 Laboratorio de Ecología Molecular de Vertebrados Acuáticos (LEMVA), Departamento Ciencias Biológicas, Facultad de Ciencias, Universidad de los Andes, Carrera 1E No 18A 10, Bogotá, Colombia. (FGR-S) E-mail: frietsapriza@gmail.com. ORCID-iD: https://orcid.org/0000-0002-6568-2802 5 Universidad Nacional de la Patagonia San Juan Bosco, Bvd. Brown 3051, 9120, Puerto Madryn, Chubut, Argentina. (EAC) E-mail: kike.crespo@uv.es. ORCID-iD: https://orcid.org/0000-0001-9216-7817 6 Laboratorio de Mamíferos Marinos, Centro Nacional Patagónico (CENPAT-CONICET), Blvd. Brown 29150, 9120 Puerto Madryn, Argentina. (NG) E-mail: garcia@cenpat-conicet.gob.ar. ORCID-iD: https://orcid.org/0000-0002-3178-7534","PeriodicalId":21600,"journal":{"name":"Scientia Marina","volume":"85 1","pages":"81-90"},"PeriodicalIF":1.4,"publicationDate":"2021-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49145270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2