样式: 排序: IF: - GO 导出 标记为已读
-
Physiological, temporal, and environmental determinants of dry energy densities of low trophic-level fishes in the Gulf of Mexico Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-19 Rebecca R. Walsh, Robert T. Leaf
Low trophic-level fishes provide a link to higher trophic-level animals, including birds, mammals, and economically valuable fishes. Despite their role, the dry energy density (DED) of these fishes and its variability have not been described in the northern Gulf of Mexico (nGOM). To address this, we describe species-specific DED for four fish species in the nGOM: Atlantic Croaker (, Gulf Menhaden ()
-
Natural mortality-at-age estimations for the benthonic commercial pen shell Atrina maura Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-19 Fernando Aranceta-Garza, Josymar Torrejón-Magallanes
Natural mortality-at-age () is key for fisheries stock management, especially on sedentary resources such as bivalves under heavy adult and juvenile exploitation. This study aims to calculate for the commercial bivalve from the Gulf of California by applying two approaches: the gnomonic interval model (GIM) and Chen & Watanabe model. The GIM uses biological data to assemble 's life cycle into gnomonic
-
Classification of set-net fish catch volumes in Iwate Prefecture, Japan using machine learning with water temperature and current distribution images at migration depth Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-19 Takero Yoshida, Kenta Sugino, Haruka Nishikawa
Efficient management of set-net fisheries can be achieved by predicting fish catches in advance. We aimed to estimate fish catch volumes using machine learning based on the data obtained from past set-net fisheries. We also suggested that the estimation can be conducted without the installation of special sensors, such as fish finders, sonars, and cameras, in the set nets. Therefore, a special feature
-
Assessment of polychaete diversity in selected tropical Islands and estuaries on the Southeast coast of India Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-18 Sathiyapandian Balasubramanian, Veeraiyan Bharathidasan, Saleem Jameer Ahamed, Aruldhass Renu, Singarayan Lazarus, Sigamani Sivaraj, Thavasimuthu Citarasu, Palanivel Partha Sarathy, Asad Syed, Hind A. AL-Shwaiman
Increased anthropogenic pressure on the marine environment leads to severe threats to resident biota, a global concern. The Gulf of Mannar (GoM) and Palk Bay (PB) on the Southeast coast of India are two notable ecological hotspots. However, increased industrialization, tourism, and fishing activities in recent years have contaminated the environment and biota of these two ecologically significant coastal
-
Modeling of multi-fractional suspended particle pathways in a shallow water basin under influence of strong winds Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-16 E. Alekseenko, A.A. Sukhinov, B. Roux
In this study, we investigate the complex dynamics of multi-fractional suspended particle transport in a shallow water basin subjected to strong wind conditions. Our research focuses on understanding the interplay between wind-induced advection and particle settlement, and its implications for sediment redistribution.
-
Carbon footprint and associated environmental impacts of fisheries on the Pulicat region, Southern India: A preliminary study Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-15 D. Arun Jenish, S. Abuthagir Iburahim, Ulaganathan Arisekar, P. Seenivasan, K. Masilan, M. Srihari, R. Velmurugan
-
Effect of the antibiotic tetracycline on structural-functional characteristics of coccolithophore Chrysotila sp. and the degree of its calcification Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-14 Natalia Shoman, Ekaterina Solomonova, Arkady Akimov
Coccolithophorids play a fundamental role in the marine carbon cycle, fixing inorganic carbon during photosynthesis and exporting CO during calcification. In the presented study, the toxic effect of tetracycline on coccolithophorids of sp. was evaluated and the possibility of removing the antibiotic from water using this microalga was investigated. Tetracycline at a concentration of 1–15 mg L had no
-
Macrofouling organisms with special reference to polychaetes collected from oil trash boom barriers at Chennai port, Southeast coast of India Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-13 R. Vani Ganapathy, N. Ramya Shree, D. Yuvabharathy, E. Malathi
This study investigates the macrofouling organisms collected from oil trash boom barriers in the open waters of Chennai port (13°6’37’102 N, 80°17’54’123 E). Oil trash boom barriers are temporary floating barriers used to control oil spill in the harbour. Macrofouling organisms settled on the oil trash boom barrier were collected by scraping method. The area covered by fouling was found to be 80 –
-
First record of Bursatella leachii de Blainville, 1817 (Mollusca: Gastropoda: Aplysiidae) in Corsica (France, NW Mediterranean) Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-13 Briac Monnier, Clément Goirand-Mauberret, Serena André, Christine Pergent-Martini, Ouafa El Idrissi
This study reports for the first time the occurrence of ragged sea hare de Blainville, 1817 in Corsica (France, NW Mediterranean Sea). The species has colonized the shallow waters (0.1–0.5 m depth) of Diana Lagoon mainly constituted of sandy-muddy bottoms and and seagrass beds. A total of 166 individuals were inventoried in June 2023 during the survey carried out along more than 300 m of shoreline
-
Total mercury in three small tunas from southeastern Brazil: Stable isotope relations and human risk assessment Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-12 Juliana M.S. Vieira, Paulo R. Dorneles, Luciano G. Fischer, Thaís C. Paiva, Adriana C. Braga, Adan S. Lino, Paulo A.S. Costa
Mercury (Hg) bioaccumulation can be highly variable in marine species. Its concentration is influenced by several physico-chemical and biotic processes, including size, age, diet composition and foraging habitats. Herein, we addressed total mercury (THg) concentrations in three small tuna species in Brazil: the frigate tuna the little tunny and the skipjack tuna . Samples were collected from commercial
-
Interactions between foredune morphologies and vegetation: Exploring the occurrence of arbuscular mycorrhizal fungi Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-11 Matheus H.F. Goldino, Milene Fornari, Isabela C. Furlan, Yoannis Domínguez, Ana Luisa D’Angelo, Denise L.C. Mescolotti, Elke J.B.N. Cardoso
Vegetation is a key trait for understanding the foredune morphologies. However, the rhizosphere in coastal dunes imposes high levels of water and nutrient stress on plants. In these conditions, arbuscular mycorrhizal fungi (AMF) are prominent root symbionts that play a crucial role in improving to abiotic stress and promoting plant growth. On the south coast of the state of São Paulo, foredunes were
-
Use of otolith microchemistry signatures to assess the habitat use of Centropomus undecimalis in lagoon systems of the southwest Atlantic Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-11 Paulo Roberto Camponez de Almeida, Marcus Rodrigues da Costa, Rebeca Dias de Souza Coutinho, Ana Méndez-Vicente, Jorge Pisonero Castro, Cassiano Monteiro-Neto, Rafael de Almeida Tubino, Alberto Teodorico Correia
The common snook, , is a catadromous species that is economically important for the southwest Atlantic artisanal and recreational fisheries. Their complex movement patterns and habitat use preferences are not fully understood in the Brazilian Atlantic waters, raising some issues regarding the rational and sustainable management of the fisheries. The present study aimed to identify the habitat use by
-
Trophic interactions between bullet tuna (Auxis rochei) and frigate tuna (A. thazard) in the Gulf of Cadiz Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-10 José L. Varela, Esther Asensio, Ricardo Borrego-Santos, Raúl Laiz-Carrión, Antonio Medina
Bullet tuna (BLT), , and frigate tuna (FRI), , are globally exploited wide-ranging species. These anatomically similar tunas may share pelagic habitats in the Atlantic Ocean and Mediterranean Sea. Feeding patterns were investigated in BLT and FRI individuals caught in the Gulf of Cadiz (East Atlantic) in 2019–2021 with the aim to decipher trophic interactions. Stomach content analyses showed a predominantly
-
Occurrence, source apportionment and risk assessment of selected pharmaceuticals and their transformation products in the effluent-impacted rivers Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-08 Sisi Liu, Haohan Yang, Zhipeng Wang, Jun Wu, Zhigang Liu, Hui Mao, Zhengxie Zhou, Binni Ma, Xueyu Wei, Qingbo Shang
The presence and risk of pharmaceutically active compounds (PhACs) in the aquatic environment have received global attentions recently, while the information about their transformation products (TPs) is limited. In this study, the occurrence and behavior of 40 common PhACs and TPs belong to 10 categories were investigated in the surface water of Ningbo city in China for two consecutive years. A total
-
Biochemical and ecological components of Holothuria (Halodeima) grisea, Selenka 1867 (Echinodermata:Holothuroidea) Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-07 Matheus Pires Miranda, Yara Aparecida Garcia Tavares
Sea cucumber is a marine invertebrate that is of great interest in Asian cuisine because of its nutritional characteristics and in scientific research due to its medicinal properties, including antioxidant, anti-inflammatory, antiviral and other actions. Knowledge of biochemical composition is an essential pillar to explain, confirm and/or instigate ecological and reproductive studies. This work aimed
-
Offshore wind power plant site selection in the Baltic Sea Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-06 Mojtaba Barzehkar, Kevin Parnell, Tarmo Soomere, Matti Koivisto
The selection of suitable sites for offshore wind power plants is an important marine spatial planning problem in the Baltic Sea. The application of multiple and different decision support tools (DSTs) can facilitate site selection. This study employs a geographical information system (GIS) integrated with the levelized cost of energy (LCOE) model, and GIS with multi-criteria decision analysis (MCDA)
-
Evaluation of the factors causing container lost at sea through fuzzy-based Bayesian network Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-06 Orkun Burak Öztürk
To date, many high-profile accidents involving the loss of large numbers of containers overboard have occurred during ocean voyages. It is estimated that an average of 1629 containers are lost at sea each year, and the statistics also highlight that the number of lost shipping containers has increased by two-thirds in the last five years. It is important to consider that falling containers are not
-
Microplastic profile in the sediment of Jakarta Bay estuary, Indonesia: Characterization based on size fraction and the potential risk to the ecosystem Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-06 Dwiyitno Dwiyitno, Christina Schwanen, Hedi Indra Januar, Farida Ariyani, Hari Eko Irianto, Jan Schwarzbauer
Jakarta Metropolitan is known as the most populated and busiest city in Indonesia and among the top urban areas in the world with a common problem of solid and liquid waste. The present study aimed to assess the occurrence of microplastic (MP) pollution in sediment from the downstream rivers and coastal water of Jakarta Bay and estimate the potential risk to the ecosystem. Two composite sediment samples
-
A moderately chocked estuary: Influence of a constriction on the water level variations of the Wouri estuary (Cameroon) Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-05 Willy Noël Dima, Yves Morel, Vanessa Elvire Toukep Ngnepi, Raphael Onguene, Thomas Stieglitz, Thomas Duhaut, Bénédicte Lemieux-Dudon, Jules Romain Ngueguim, Felix Besack, Ezinvi Baloitcha, Alexis Chaigneau
We study the water-level (WL) evolution in the Douala basin (DB), a sub-basin of the Wouri estuary, separated from the ocean by a natural constriction and influenced by tides and river inflow. Our objective is to assess whether floods in Douala city could result from water overflow from the Douala basin due to Wouri river floods. We first evaluate the constriction’s damping effect by analyzing tide
-
Individual variation in heat tolerance and metabolism in marine Antarctic organisms Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-05 Oscar Varas, Andrés N. Molina, M. Roberto García-Huidobro, Marcela Aldana, Enrico L. Rezende, Mauricio J. Carter, Cristóbal Galban-Malagon, José M. Pulgar
Climate change is one of the main concerns to Antarctic biodiversity. Since temperature plays a crucial role in various biological traits, it is key to understand how warming may affect organisms specialized to live in the cold habitats. Although heat tolerance of several polar species is known, little emphasis has been given to individual variation and its relationship with other biological traits
-
Comparison of macrozoobenthic communities and environmental variables in the subtidal zones between a nearly closed bay and an open bay Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-05 Xiaoyu Zhao, Lizhe Cai, Yiyong Rao, Deyuan Yang, Xiping Zhou, Deli Wang, Kang Mei
To compare the impact of human activities and geographical environment on macrozoobenthic communities in bays, four season surveys of macrozoobenthos and environmental variables in Kaozhou Bay (a nearly closed bay) and Honghai Bay (an open bay) were conducted. CLUSTER, non-metric multi-dimensional scaling (NMDS) and the relative importance index () showed that the macrozoobenthic communities were different
-
Feeding habits of the Guiana dolphin, Sotalia guianensis, (Van Bénéden, 1864) (Cetacea: Delphinidae) in Sepetiba and Ilha Grande bays, southeastern Brazil Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-05 Nerelle Vital, Emi Brinatti Guari, Tatiana Lemos Bisi, Leonardo Flach, José Lailson Brito Junior, Alexandre de Freitas Azevedo
The analysis of gastrointestinal contents of dead animals is the primary and most traditional technique used to investigate cetacean feeding habits. The Guiana dolphin () is among the most common cetacean species on the Brazilian coast. Sepetiba and Ilha Grande bays currently house this species’ highest population estimates. The present study aims to characterize the feeding habits of the Guiana dolphin
-
Spatial and seasonal variability of dissolved metals in a monsoonal estuarine environment Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-05 Shaheen Akhtar, Sk. Md. Equeenuddin, Priyadarsi D. Roy
-
A comprehensive compilation of Iberian Medusozoan data: Diversity, ecology, and omics insights Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-04 Tomás Rodrigues, Daniela Almeida, Francisco A. Guardiola, Paulo A.V. Borges, Agostinho Antunes
This study investigates the diversity and distribution of Medusozoa, a clade of the phylum Cnidaria, within the framework of the Iberian Peninsula and surrounding archipelagos. Medusozoa is notably recognized for encompassing jellyfish species with the capacity to exert detrimental ecological and socioeconomic impacts, this group of mostly marine organisms assumes a critical role in aquatic food webs
-
Characteristics of heavy metals in surface sediments of the Van Don-Tra Co coast, northeast Vietnam Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-02 Trung Nguyen Nhu, Nam Bui Van, Duc-Anh Le, Thuy Huong Tran Thi, Thanh-Duong Nguyen, Tung Dang Xuan, Hoai-Nam Tran, Pham Nhu Sang, Mohamed Saiyad Musthafa, Van-Hao Duong
Eighteen surface sediment samples were collected from the Van Don-Tra Co coast, northwestern Gulf of Tonkin, for analyzing the concentration of heavy metals (Zn, Cr, As, Cu, Ni, Pb, Co, and Cd) and grain size. The statistical and contamination indices of heavy metals were calculated to evaluate the extent of pollution caused due to heavy metals and their potential harm to the environment. According
-
Influence of the Rhone River intrusion on microplastic distribution in the Bay of Marseille Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-02 A. Alcaïno, L. Vidal, L. Licari, C. Paillès, S. Conrod, J. Dauvier, C. Chevalier, C. Pinazo, M. Grelaud, P. Ziveri
We present the spatiotemporal distribution of microplastics (MP) in surface waters and sediments between 2020 and 2022 in the Bay of Marseille. Microplastics were extracted with an improved, ecological protocol from 27 surface water and 16 sediment samples. The hydrodynamical circulation model MARS3D-RHOMA was used with data to test the influence of meteorological and hydrodynamic forcing on the concentration
-
The impact of phosphate fertilizer factory on the chemical and radiological pollution of the surrounding marine area (seawater and sediments) in northwestern Greece Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-03-02 Fotini Noli, Maria Sidirelli, Panagiotis Tsamos
Phosphogypsum, a waste of phosphate fertilizers production, contains heavy metals and especially radionuclides as U, Ra and Th. It is usually deposited in stacks close to coastal zones and the leachates with seawater result in chemical and radiological pollution. In this work the pollution in the coastal environment surrounding a phosphate fertilizer factory in northwestern Greece was investigated
-
Heavy metal pollution in the nearshore surface sediments north of the Shandong Peninsula and the Western Miao Islands, China Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-29 Qingtong Wang, Haigen Wang, Xiaoyuan Gu, Kuanle Bao, Peng Yang, Xingchen Yu, Jiahao Zhang, Fangsong Mao, Junqiang Zhang, Jian Wang
Surface sediment samples (N = 94) were obtained from the west Miao Islands, northern Shandong Peninsula, China, and analyzed for grain size and elements. Based on the classification by Folk and Ward, surface sediments were dominated by silt-sized components, sandy silt, and silt. The mean abundance of heavy metals could be ordered according to Cr > Zn > Ni > Cu> Pb > As> Cd > Hg. According to sediment
-
The relative resilience potential of Tobago’s coral reefs in the Southern Caribbean Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-28 Anjani Ganase, Farahnaz Solomon, Kathryn E. Whittey, Hannah Lochan, Jonathan Gomez, Addison Titus
Coral reefs and their rich biodiversity provide ecosystem services that are critical to livelihoods and culture on island nations; they support fisheries and tourism, as well as protect coastal infrastructure. The Caribbean Sea has a long history of disturbances related to human activities, such as the over-exploitation of fishery resources and pollution, along with recent mass mortality events due
-
Assessing the role of tidal cycle, waves, and wind as drivers of surf zone zooplankton on a temperate sandy beach Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-27 C.A. Baleani, M.C. Menéndez, A.J. Vitale, M.R. Amodeo, G.M.E. Perillo, M.C. Piccolo
The surf zone is strongly affected by tides, waves, and winds. However, there are still a lack of knowledge about the response of the zooplankton community to these physical factors in the surf area, with a particular emphasis on tidal effects. The aim of this study was to conduct a preliminary assessment of two distinct tidal cycles, encompassing fluctuations in on-offshore currents, waves, and wind
-
Are rigid sorting devices necessary to control size selectivity in demersal trawl fisheries? Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-27 Bent Herrmann, Zita Bak-Jensen, Manu Sistiaga, Jesse Brinkhof, Roger B. Larsen, Eduardo Grimaldo, Kristine Cerbule, Enis N. Kostak, Morteza Eighani
Diamond mesh codends are the most common size selectivity devices in trawls for releasing bycatch and undersized individuals. However, codend selectivity can vary due to the flexibility of the netting meshes, making discrimination by size between retained and released fish difficult to control. In some trawl fisheries, rigid sorting devices have been introduced to make size selection more controlled
-
Seasonal variation in the mesozooplankton community structure and indicator species of the Yellow Sea Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-25 Garam Kim, Wongyu Park, Dong Han Choi, Hyung–Ku Kang
We investigated the mesozooplankton community structure of the Yellow Sea in four seasons, one season for each year during 2019–2022. Total abundance and biomass were highest in autumn and spring, respectively. The mesozooplankton community was dominated by small copepods such as , , and species throughout all seasons. Euphausiid larvae were particularly abundant in spring, whereas tunicates appeared
-
Insights on trace metal enrichments in tourists beaches of Santa Elena Province, Ecuador Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-22 Ricardo Urrutia-Goyes, J.S. Sakthi, D.M. Rivera-Rivera, T. Thena, Priyadarsi D. Roy, M.P. Jonathan
Metal concentrations in beaches of major coastal cities is directly identified based on the enrichment pattern of bioavailable metals in sediments. The main objective of the study is to know the present level of metal enrichments in beach sediments of Santa Elena Province in Ecuador. Sediment beach quality was assessed in five tourist beach zones ( = 52) by analyzing the bioavailable trace metal concentration
-
Ecological patterns of intertidal macrofauna across an anthropic gradient on tropical Gulf of Mexico sandy beaches: Insights for assessment Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-22 Gema Hidalgo, Alejandro Granados-Barba
In the context of sandy coastlines under increasing coastal development and squeeze, coupled with the ongoing loss of global diversity, it is crucial to understand the ecological patterns of benthic macrofauna, which plays a key role in the trophic and biogeochemical functional connectivity between land and sea. Here, we assessed differences in the spatiotemporal patterns of macrofauna diversity and
-
Risk assessment and pollution loads of potentially toxic elements in water of four rivers flowing into the Mediterranean Sea Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-22 Esra Billur Balcioğlu İlhan, Deniz İnnal, Hande Çavuş-Arslan, Nuray Çağlar Balkis
One of the main sources of metal accumulation in the marine environment is transport by rivers. Using data from 2014- 2017 for various stations, this study analysed the distribution of potential toxic element (PTE) concentrations in surface waters, the pollution loads and the water quality index of the large rivers flowing into the Mediterranean Sea (Manavgat, Göksu, Seyhan and Ceyhan). 13 different
-
Macro-epibiont assemblages of mangrove forests in the Persian Gulf and Gulf of Oman Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-21 Alireza Mahalati, Ali Nasrolahi
In mangrove ecosystems, trees and aerial roots provide a hard substrate for the attachment of several groups of epibiont species. However, the diversity and abundance of epibionts varies in different geographic areas and has not been studied in many regions. Here, we studied the species composition, abundance, and biomass of macro-epibionts on tree surfaces and pneumatophores along the northern coasts
-
An initial fish and megafauna biomass assessment from Tanjung Bira, a remote unprotected marine area Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-20 Pascal Sebastian, Rinaldi Gotama, Qinthan A. Aulia, Serena J. Stean, Lauren D. Sparks, Syafyudin Yusuf
Indonesia is a part of the Coral Triangle, the global epicenter of marine biodiversity. As an island nation, fisheries are amongst the main sources of income for Indonesia’s economy, but overfishing has depleted fish stocks and degraded habitats, especially in unprotected marine areas. Tanjung Bira in South Sulawesi is an unprotected marine area that possesses understudied marine biodiversity and overlooked
-
Use of water quality parameters to assess the ecological health of Atlantic coastal areas in the northwestern Morocco Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-20 Hafid Achtak, Hassnae Kouali, Abdellatif Chaouti, Abdallah Dahbi
Coastal waters are confronted with multiple stressors, including chemical contamination/pollution and climate change. Water quality along the Atlantic coast of Morocco was assessed, in this study, at six stations over four seasons, including three heavily industrialized stations (S2, S4, and S6) and three clean stations (S1, S3, and S5), spreading over a distance of ∼300 km from Azemmour to Essaouira
-
An updated checklist of Myctophids of Western Indian Ocean with 6 new records Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-20 KM Meera, V N Sanjeevan, R Raghu Prakash, M Hashim
-
Light absorption properties of dinoflagellate blooms in Todos Santos Bay, Mexico (northeast Pacific Ocean) Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-17 Mariana Larios-Muñiz, Adriana Gonzalez-Silvera, Eduardo Santamaria-del-Ángel, María Ester Guzman-Hernandez, Stella Betancur-Turizo, Mónica Torres-Beltrán, Jorge López-Calderón
Todos Santos Bay (TSB) is located on the northeastern coast of the Baja California peninsula in Mexico. Algal blooms dominated by dinoflagellates in TSB are recurrent and negatively impact the ecosystem of the bay and regional economy. In this study, we analyzed the concentration of chlorophyll a (Chl) and the light absorption coefficients of phytoplankton, colored dissolved organic matter (CDOM),
-
Discharge of potentially toxic elements from acid sulfate soils in western Finland: Conflict between water protection and land use? Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-17 Janne Toivonen, Anton Boman
Acid sulfate soils (ASS) are commonly found in many coastal areas worldwide and typically develop from artificial draining of sulfidic sediments, which release acidity and metals, causing unfavuorable effects on recipient watercourses. This study estimates the actual amounts of metals and elements carried to the Gulf of Bothnia and the Baltic Sea by stream water yearly. The combined load from the many
-
Kinship relationship of Uroteuthis chinensis in the waters of western Kalimantan and northern Java based on morphometric characters and genetic structure Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-17 Achmad Zamroni, Mennofatria Boer, Nurlisa Alias Butet, Zairion Zairion, Wudianto
was a squid species with a wide distribution and rapid reproduction. It was commonly found in the waters of western Kalimantan and northern Java, which were the highest squid fishing grounds in Indonesia. Exploitation of in these waters was intensive and increasing, which might have affected the sustainability of squid resources. Therefore, proper and responsible management was needed to maintain the
-
Advancing into the morphology of female differentiation in the seabob shrimps Xiphopenaeus dincao and X. kroyeri: Insights into the taxonomy Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-17 Lizandra F. Miazaki, Nielson F.C. França, Caio S. Nogueira, Fernando L. Mantelatto, Rogerio C. Costa
shrimps species are among the main marine organisms exploited in commercial fishing in the Americas. Recent investigations have unveiled a species complex formerly identified as . Within it, two species coexist along the Brazilian southeastern coast: and . However, their identification currently relies on the morphology of adult males, with no available morphological information enabling the identification
-
Ecological risk assessment and phthalate ester concentrations in sediment samples from Ilorin metropolis, North Central Nigeria Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-17 Hussein K. Okoro, Muyiwa M. Orosun, Muhaliyu Abdulmojeed, Kingsley O. Iwuozor, Saheed Abiodun Popoola, Ebuka Chizitere Emenike, Caliphs Zvinowanda, Jane C. Ngila
The presence of phthalate esters (PEs) in the environment, common components of plastics and consumer products, is causing increasing anxiety over the prospect of negative effects on ecosystems and human well-being. Ilorin metropolis, situated in north-central Nigeria, is not immune to this environmental challenge. Recognizing the urgent need for a thorough evaluation, this study is dedicated to determining
-
Patterns of diversity in subtidal marine macrofaunal communities: Insights from a semi-enclosed bay system in the Northeast Atlantic Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-16 Catarina M. Alves, Marisa A. Gomes, Regina Neto, Jesus S. Troncoso, Pedro T. Gomes
The complexity of describing patterns and scales of variation in the distribution of species has created a delay in our understanding of the natural world. Understanding ecological functioning is essential to develop ecosystem management projects and to uphold conservation measures. The objective of the present study was to describe the variation in the structure of subtidal marine macrofaunal communities
-
Trends in the surface wind-wave heights in the North Indian Ocean based on 50-year NCEP/NCAR reanalysis wind-wave data Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-16 Jyoti P. Kerkar, Jaya Kumar Seelam
Analysis of 50 years of hourly significant wave heights of the Indian Ocean between 30°N and 60°S is carried out and linear trends of mean significant wave heights and maximum significant wave heights are obtained on annual, seasonal and decadal scales. The significant wave heights (SWH) are obtained from a third-generation spectral wind-wave model forced with six-hourly NCEP-NCAR winds over the Indian
-
Exploring the depths: Metagenomic profiling of cold seep bacterial communities and isolation of hydrocarbon-degrading microbes from the Cauvery-Mannar basin Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-16 Akshay Unnikrishnan, Priyanka Das, Narsinh L. Thakur, Prabha Devi
Cold seeps are unique ecosystems characterized by the presence of endemic communities reliant on microorganisms that survive through chemosynthesis, utilizing sulfide, methane, hydrocarbons, and other reduced compounds. Recently, a cold seep was discovered in the Cauvery-Mannar basin during an expedition aboard the research vessel ORV Sindhu Sadhana which led to the investigation into the distribution
-
Temporal variation of epiphytic algae on Digenea mexicana (Rhodophyta: Ceramiales) in a community located in the south of Quintana Roo, Mexico Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-15 Cynthia Mariana Hernández-Casas, Ángela Catalina Mendoza-González, Luz Elena Mateo-Cid, Carlos Fabián Vargas-Mendoza
Epiphytism is a frequent association in marine benthic communities where epiphytic algae play an important role, including an increase in species richness and primary production. is a perennial red alga that is typically a favorable host for epiphytes. To determine the spatio-temporal changes of the epiphytes in the population of in Río Indio, Quintana Roo, México, sampling was undertaken in three
-
Changing the way we look to fisheries’ discards Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-15 Célia M. Teixeira, Manuel Pacheco Coelho, Maria Manuel Gil, Cristina Pita, Priscila M. Silva
It is well known that fish is rich in macro- and micronutrients associated with various nutritional benefits, which has led to an increase in fish consumption in recent decades. The greater demand for fish has led to an increase in discards, which are largely made up of by-catches. The valorisation/promotion of species with low or no economic value (that would be discarded) and the development of new
-
Temporal dynamics of the ichthyoplankton assemblages in the central Aegean Sea during one year and the effects of ecological factors Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-13 Orçin Uygun, Belgin Hoşsucu
In this investigation, vertical and horizontal sampling was performed monthly, covering a year, from 16 stations situated in Sığacık Bay. In ichthyoplankton sampling, a standard-type plankton net with a 350-micron mesh size for vertical sampling and a 500-micron mesh size for horizontal sampling was used. This study aimed to investigate temporal changes in the ichthyoplankton assemblages in Sığacık
-
Quantification of the fishing effort of the artisanal fleet in the Maritime-Terrestrial National Park of the Atlantic Islands of Galicia in the absence of vessel monitoring system Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-13 J.M. Parada, B. Nieto
The fishing effort in the marine area of the four archipelagos of the Maritime-Terrestrial National Park of the Atlantic Islands of Galicia (PNMTIAG) is estimated. In the absence of vessel monitoring systems (VMS), a stratified quantitative sampling programme of passive gears deployed and of vessels fishing, in the case of non-passive gears, was used. This programme allowed to quantify the fleet and
-
Growth characteristics and population dynamics of Macrophthalmus japonicus with decreasing microphytobenthos biomass in muddy estuarine tidal flat Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-13 Sosuke Otani, Yasunori Kozuki
The present study evaluated the population dynamics, growth, and biomass production of the ocypodid crab in muddy estuarine tidal flat through monthly surveys over a 10-year period. The mean annual biomass was 4.71–11.51 (7.9±2.5) g dry·m, and secondary production was 2.1–19.3 g dry·m·year (11.3±5.3 g dry·m·year) and 1.59–6.16 (3.71±1.55) g C·m·year. Two to three cohorts of were observed in each year
-
Environmental preferences and size variability of Carcharhinus falciformis (Müller & Henle 1839) caught by longline fleet in the Central Mexican Pacific Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-13 Natalia Michelle Melgar-Martínez, Sofía Ortega-García, Heriberto Santana-Hernández, Ulianov Jakes-Cota, Felipe Galván-Magaña, Héctor Villalobos
The silky shark () is one of the most economically important species with high volume catches in the Central Mexican Pacific (CMP). Research on environmental preferences and species distribution helps to reduce juvenile bycatch during commercial fishing operations and benefits their conservation. The aim of this research is to analyze the size variability of and determine its environmental preferences
-
Land use and land cover mapping using Landsat-8 and Sentinel-2 data in Al Qunfudhah coast, western Saudi Arabia: A comparative study Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-12 Samia S. Hasan, Omar A. Alharbi, Amr S. Fahil
Al Qunfudhah Governorate has assumed a tourist status in the strip of Saudi coastal cities on the Red Sea coast. Agriculture, food industries, and engineering industries are among the most important economic activities in the city. As a result, Land use and land cover (LULC) detection is essential for several reasons: urban planning, sustainability, resource management and environmental preservation
-
Investigation of the Kuroshio-coastal current interaction and marine heatwave trends in the coral habitats of Northeastern Taiwan Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-10 Po-Chun Hsu, Rose Angeli Tabanao Macagga, Ching-Yuan Lu, Dorathy Yuan-Jane Lo
The continually rising concentration of the surface aqueous partial pressure of carbon dioxide has led to sustained ocean acidification and increased sea surface temperature (SST) in the coral habitats of northeastern Taiwan. Since 2016, this region has been experiencing intense marine heatwave (MHW) events, with the accumulated thermal stress reaching its peak between 2020 and 2022. Apart from the
-
Preliminary characterization of coral reef diversity using environmental DNA in a hyper-diverse context Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-10 Elaine W. Shen, Erin M. Borbee, Paul G. Carvalho, Fakhrizal Setiawan, Beginer Subhan, Hawis Madduppa, Austin T. Humphries, Christopher E. Lane
Monitoring coral reef communities remains a scientific cornerstone of marine biodiversity conservation and management. Environmental DNA (eDNA) has recently emerged as a passive detection tool to enumerate organisms in dynamic marine systems. The utility of eDNA to provide meaningful results for coral reef conservation and management in Indonesia, a hyper-diverse and data-limited tropical area, however
-
Water-sediment regulation affects community structures of macrobenthic mollusks in the Yellow River estuary and adjacent waters Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-09 Li-Sha Hu, Xiao-Min Zhang, Shao-Wen Li, Fan Li, Yun-Wei Dong
The Yellow River Water-Sediment Regulation Scheme (WSRS), discharging large volumes of water and sediment through a channel in the Yellow River into the sea during summer, can profoundly impact the community structure in the Yellow River estuary and adjacent waters. For elucidating the effects of WSRS on the biodiversity and community compositions of epibenthic mollusks, in the present study, we investigated
-
Sea-level rise and sustainable shore protection strategies in the low-lying delta: A case study of Bangladesh Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-08 Md. Shariot-Ullah
The planet is warming, causing sea levels to rise at a rapid rate of 4.0 mm/year in the 21st century. Bangladesh, a low-lying country in the Ganges-Brahmaputra Delta known as the Bengal Delta, has experienced a 26.0 cm mean sea level shift at an average rate of 11.6 mm/year over the past two and a half decades. This rise is attributed to geological settings, natural hazards, and land subsidence, with
-
Assessment of potentially toxic metals, metalloids, and non-metals in muscle and liver tissue of Two Fish Species (Mugil cephalus Linnaeus, 1758 and Odontesthes regia (Humboldt, 1821) from the Coastal Area of Callao, Peru Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-08 Lorena Alvariño, Angélica Guabloche, Thiago Machado da Silva Acioly, Diego Carvalho Viana, José Iannacone
The bioaccumulation of potentially toxic metals, metalloids, and non-metals in human organs, tissues, and cellular structures can lead to the emergence of related pathologies, primarily affecting the nervous system, kidneys, liver, and endocrine system. Therefore, it is necessary to assess the concentrations of potentially toxic metals and other contaminants to ensure the safe consumption of the population
-
Abundance, morphology, spatial-temporal distribution and sources of microplastics in Shilaoren Beach, Qingdao, China Reg. Stud. Mar. Sci. (IF 2.1) Pub Date : 2024-02-08 Jing Luan, Yong-Hong Wang
Located in the transitional zone between the ocean and land, beaches are the main site for the accumulation of microplastics and the main source of microplastics in coastal area. However, most studies focusd on the difference in microplastics abundance on the surface layer of different beaches, ignoring the spatial and seasonal variation characteristics of microplastics and their influence mechanisms