Marine Biology - Science topic

Lung cancer remains a leading cause of cancer-related mortality, necessitating improved treatment strategies. Consequently, researchers have focused on the development of novel anti-lung cancer agents in recent decades. Marine sponges have garnered attention as promising sources of diverse anticancer components. In this study, we conducted a compre...

This study delves into utilizing Seagrass as a bioindicator for heavy metal detection in semi-enclosed marine ecosystems, with a specific focus on the Jordanian coast of the Gulf of Aqaba. The research evaluates the relationship between human activities and the responses of marine organisms, employing the seagrass species Halophila stipulacea as a...

Highly directional launch and intensity adjustment of underwater acoustic signals are crucial in many areas such as abyssal navigation, underwater signal communication, and detection for marine biology. Inspired by the phenomenon that aquatic animals like dolphins detect and track prey with high resolution, we propose an energy-distributable direct...

Yeast infections have gained significant attention in the field of marine biology in recent years. Among the broad diversity of marine organisms affected by these infections, elasmobranchs (sharks and rays) have emerged as highly susceptible, due to climate change effects, such as increasing water temperatures and pollution, which can alter the com...

Abstract. Questo contributo raccoglie le ricerche archeologiche più recenti che la Soprintendenza del Mare insieme alla BgfU (Bayerische Gesellschaft für Unterwasserarchäologie) conduce presso lo Stagnone di Marsala e più precisamente nelle acque intorno all’isola di Mozia. La ricerca si è concentrata sul tema della portualità dello Stagnone, inter...

In the multifaceted field of oceanic engineering, the quality of underwater images is paramount for a range of applications, from marine biology to robotic exploration. This paper presents a novel approach in underwater image quality assessment (UIQA) that addresses the current limitations by effectively combining low-level image properties with hi...

Perkinsea constitutes a lineage within the Alveolata eukaryotic superphylum, mainly composed of parasitic organisms. Some described species represent significant ecological and economic threats due to their invasive ability and pathogenicity, which can lead to mortality events. However, the genetic diversity of these described species is just the t...

Jet flows injected in a transverse flow need rapid and effective mixing for various applications ranging from medicine injection into bloodstreams to nuclear pressurized water reactors (PWRs). Inspired by marine organisms, spiral snails, and sharks, bio-inspired nozzles are proposed and experimentally investigated to explore their advantages in sup...

The deep sea (>200 m) is home to a surprisingly rich biota, which in some cases compares to that found in shallow areas. Scleractinian corals are an example of this – they are key species in both shallow and deep ecosystems. However, what evolutionary processes resulted in current depth distribution of the marine fauna is a long-standing question....

Manual de métodos y técnicas aplicados a la ecología y biología marina.

Global warming and pollution could lead to the destruction of marine habitats and loss of species. The anomalous behavior of underwater creatures can be used as a biometer for assessing the health status of our ocean. Advances in behavior recognition have been driven by the active application of deep learning methods, yet many of them render superi...

In practical applications of passive sonar principles for extracting characteristic frequencies of acoustic signals, scientists typically employ traditional time-frequency domain transformation methods such as Mel-frequency, Short time Fourier transform (STFT), and Wavelet transform (WT). However, these solutions still face limitations in resolutio...

Using LIBS for the analysis of archaeological and geological marine mollusc shells is a growing research area that relies on customised instrumentation and specific workflows that can accommodate the variety and precision of the required sampling parameters. However, the increased efficiency offered by LIBS, which enables the study of a larger quan...

I had no idea what I was getting into when I decided to go into marine biology as a graduate student. It has ended up being a wonderful career, with opportunities to work with wonderful people around the world, and to work with many wonderful students at a variety of grade levels. It has also opened up opportunities in completely unexpected directi...

Appreciation for the role of cryptofauna in ecological systems has increased dramatically over the past decade. The impacts blood-feeding arthropods, such as ticks and mosquitos, have on terrestrial communities are the subject of hundreds of papers annually. However, blood-feeding arthropods have been largely ignored in marine environments. Gnathii...

Eutrophication is accelerating the recent expansion of oxygen-depleted coastal marine environments. Several bolivinid foraminifera are abundant in these oxygen-depleted settings, and take up nitrate through the pores in their shells for denitrification. This makes their pore density a possible nitrate proxy. This study documents three aspects relat...

The intricate realm of marine life and ecosystems remains one of the least explored and understood areas on our planet, despite its profound beauty and complexity that has fascinated scientists and environmentalists for centuries. This paper delves into the kaleidoscope of life found in marine biodiversity, highlighting the critical role these e...

Marine Ecology-Concepts and Applications

Quanzhou Bay is located on the southeastern coast of Fujian Province, China, characterized by estuaries, intertidal flats, reclaimed areas, mangroves, seagrass beds, and islands, creating diverse habitats and ecosystems. The bay possesses a high marine biodiversity. This study conducted extensive quarterly surveys in Quanzhou Bay during 2008-2009....

Within the domain of deep learning applied to computer vision, there exists a significant emphasis on the competition between two prominent models, namely Inception ResNet and Xception, particularly in the field of marine fish object detection. The present study conducted a comparative analysis of two advanced neural network architectures in order...

The precise identification and localization of fish entities within visual data is essential in diverse domains, such as marine biology and fisheries management, within computer vision. This study provides a thorough performance evaluation of two prominent deep learning algorithms, ConvDeconvNet and UNET, in the context of fish object detection. Bo...

Understanding patterns in coral reproductive biology at local and regional scales is crucial to elucidate our knowledge of characteristics that regulate populations and communities. The lack of published data on coral spawning patterns in the Maldives hinders our understanding of coral reproductive biology and limits our ability to assess shifts in...

Diatoms are responsible for the fixation of ca. 20% of the global CO2 and live associated with bacteria that utilize the organic substances produced by them. Current research trends in marine microbial ecology show which diatom and bacteria interact mediated through the production and exchange of infochemicals. Polyunsaturated aldehydes (PUA) are o...

More than 20 global marine extinctions and over 700 local extinctions have reportedly occurred during the past 500 years. However, available methods to determine how many of these species can be confidently declared true disappearances tend to be data-demanding, time-consuming, and not applicable to all taxonomic groups or scales of marine extincti...

Background: The red swamp crayfish Procambarus clarkii (Girard, 1852), native to the United States and northern Mexico, has been introduced in many countries worldwide. The species has a remarkable invasiveness, due to its high reproductive rate and to its ability to tolerate broad ranges of water parameters like salinity. Nevertheless, no consiste...

The main objective of this research is to determine the efficacy of the YOLO model in detecting native fish species found in Indonesia. Indonesia has a variety of maritime natural resources and shows significant diversity. This research utilizes the YOLO architecture, previously trained on several datasets, for fish detection in the environment in...

This case study explores educational practices and processes in an interdisciplinary summer course addressing SDG14 (Life below water), SDG13 (Climate action), SDG4 (Education), SDG3 (Good health and wellbeing), and SDG17 (Partnerships). From May to August in 2022, students from 12 countries participated in an undergraduate summer course (SDG 200 O...

Calcite shells of planktic foraminifera (Protista, Rhizaria) constitute a large portion of deep-sea sediments. The shells are constructed by sequential addition of partly overlapping chambers with diverse shapes, resulting in complex shell architectures, which are genetically fixed and diagnostic at the species level. The characterisation of the co...

The Bering Sea is a region on the border of the Boreal and Arctic biogeographic realms. Two regions with chemosynthetic habitats were studied in detail for the first time. Methane seep fields of the Koryak slope found between 400 and 700 m depth are the northernmost chemosynthesis-based habitats known to date in the Pacific (60°49′-61°10′ N). The P...

The dynamics of physico-chemical, nutrient, and chlorophyll-a variables were studied in the bloom and non-bloom locations along the off-Gujarat coastal waters to understand the variability in biogeochemistry using multivariate analytical tests. The dissolved oxygen was significantly lower in the bloom stations (3.89 ± 0.44 mgL⁻¹) than in the non-bl...

Globally, interactions between fishing activities and dolphins are cause for concern due to their negative effects on both mammals and fishermen. The recording of acoustic emissions could aid in detecting the presence of dolphins in close proximity to fishing gear, elucidating their behavior, and guiding potential management measures designed to li...

This short policy paper critically examines the persistent challenges and the implementation gap in international agreements concerning marine protection and sustainable use. Despite the global recognition of the need to safeguard marine ecosystems and ensure sustainable fisheries, this study underscores the existing disparities between agreement o...

The cold temperate and subtropical marine faunas of the Northeastern Pacific meet within California as part of one of the few eastern boundary upwelling ecosystems in the world. Traditionally, it is believed that Point Conception is the precise site of turnover between these two faunas due to sharp changes in oceanographic conditions. However, evid...

Introduction. Historical biodiversity memory is a fundamental asset for the study and comprehension of present-day biodiversity. It is therefore imperative that museums’ historical collections are thoroughly investigated, studied, preserved and, if possible, “rebuilt” in their purity (MEREGALLI et al., 2023). In fact, despite their enormous potenti...

In the XXI century, advancements in technology and the growing abundance of information have led to significant changes in communication strategies, aiming to capture people's attention and facilitate their understanding of scientific topics. In this framework, the immersive approach has emerged as a highly effective means of engaging individuals o...

INTRODUCTION Henri de Lacaze-Duthiers is well known for his work and extensive (and splendid) illustrations of marine invertebrates. He has conducted pioneering studies on the description of red corals (Vielzeuf et al. 2022) and he is also the founder of two French marine stations (in Roscoff and Banyuls-sur-Mer) that are still at the forefront of...

Citation: Chithambaran, S., et al. Dietary supplementation of Dunaliella sa-lina on growth performance and body composition of Indian white shrimp, Fen-neropenaeus indicus (H. Milne Edwards). (2015) J Marine Biol Aquacult 1(1): 16-20.

Key ecological features (KEFs) are elements of Australia's Commonwealth marine environment considered to be important for biodiversity or ecosystem function, yet many KEFs are poorly researched, which can impede effective decision-making about future development and conservation. This study investigates a KEF positioned over the Last Glacial Maximu...

Hydrological monitoring is necessary for successful aquaculture management. In this article, the technology of microbial fuel cells (MFC) for powering hydrological monitoring sensors is tested. The device operated at a depth of two meters on the territory of the Zapad biostation of the A.V. Zhirmunsky National Scientific Center of Marine Biology Fa...

This research was conducted in January 2022 in the coastal waters of Tanah Merah Village and at the Marine Biology Laboratory and Marine Chemistry Laboratory, Department of Marine Science, University of Riau. The purpose of the study was to analyze the structure of macrozoobenthos communities in the coastal waters of Tanah Merah Village which inclu...

Dear Colleagues, In today’s world, the ocean is one of the most important areas for human exploration and development. Underwater vision, as a cross-disciplinary field related to underwater environments, has a wide range of applications in marine resource development, marine biology research, underwater detection and control, and other fields. In...

Seahorses, widely recognized as a unique genus within aquatic species, are exploited globally across traditional medicine, aquarium, and curio industries. Notwithstanding their popularity, there exists a dearth of current bibliometric investigations capable of discerning key shifts and patterns within seahorse research. In addressing this gap, our...

Fixed underwater observatories (FUO), equipped with digital cameras and other sensors, become more commonly used to record different kinds of time series data for marine habitat monitoring. With increasing numbers of campaigns, numbers of sensors and campaign time, the volume and heterogeneity of the data, ranging from simple temperature time serie...

The wax ester (WE) and triacylglycerol (TAG) biosynthetic potential of marine microorganisms is poorly understood at the microbial community level. The goal of this work was to uncover the prevalence and diversity of bacteria with the potential to synthesize these neutral lipids in coastal sediments of two high latitude environments, and to charact...

Warm temperature anomalies are increasing in frequency in the global ocean with potential consequences on the goods and services provided by marine ecosystems. Recent studies have analyzed the distribution and dynamics of marine heat waves (MHWs) and evaluated their impacts on marine habitats. Different drivers can generate those anomalies and the...

Publications and References on Marine Biology, Biodiversity, Livelihoods and Climate Change. Vide Annexure 1

Reservoirs are major inland water resources benefitting society through multiple ecosystem services, including fish production. However, the scope of the reservoirs in India is yet to be explored for its full fisheries potential and the scientific/management personnel are engaged in bridging the yield gap. This paper reviews the research progress m...

The melting of the Greenland Ice Sheet is accelerating, with glaciers shifting from marine to land termination and potential consequences for fjord ecosystems downstream. Monthly samples in 2016 in two fjords in southwest Greenland show that subglacial discharge from marine-terminating glaciers sustains high phytoplankton productivity that is domin...

Oceanic submesoscale flows are considered to be a crucial conduit for the downscale transfer of oceanic mesoscale kinetic energy and upper-ocean material exchange, both laterally and vertically, but defining observations revealing submesoscale dynamics and/or transport properties remain sparse. Here, we report on an elaborate observation of a warm...

The starfish of the Gulf of California (GoC) are part of the rich biodiversity of Baja California Sur, Mexico. In this sea, starfish have been widely studied from the natural sciences, but not from human disciplines. In this interdisciplinary chapter, from marine biology, environmental history, and philosophy we describe biocultural educational and...

As a case study of the responses of natural history museums to changing scientific and funding environments, we analysed research publications of Australia's Natural History Museums (ANHMs) 1981-2020. Using Scopus, 9,923 relevant documents 1981-2020 were identified, mainly research papers but with a growing proportion of reviews. The number of docu...

This book deals with the bivalve molluscan fauna of Peter the Great Bay, mode of life, biology and role of bivalve mollusks in bottom communities, shell morphology, combined image-text identification keys for bivalve families and an atlas of color images of 84 species of the coastal zone. Some aspects of collecting of mollusks and their shells and...

Ephyrae, the early stages of scyphozoan jellyfish, possess a conserved morphology among species. However, ontogenetic transitions lead to morphologically different shapes among scyphozoan lineages, with important consequences for swimming biomechanics, bioenergetics and ecology. We used high-speed imaging to analyse biomechanical and kinematic vari...

n Memoriam: Prof. Dr. Murat SEZGİN (1974-2017) We lost our dear friend Prof. Dr. Murat Sezgin, a faculty member of Sinop University, Facultyof Fisheries, Department of Marine Biology, Department of Basic Sciences of Fisheries, on 28.07.2017. Prof. Dr. Sezgin was a valuable scientist who specialized in the biology and ecology of Crustacea and the ta...

Microorganisms, occupying the largest biomass in deep sea, play essential roles in deep-sea ecosystem. It is believed that the microbes in deep-sea sediments are more representative of deep-sea microbial communities, the microbial composition of which is seldom affected by ocean currents. However, the community of benthic microbes on a global scale...

Aquaculture of New Zealand’s endemic green-lipped mussel (Perna canaliculus) is an industry valued at NZ$ 336 M per annum and is ~ 80% reliant on the natural supply of wild mussel spat harvested at a single location—Te Oneroa-a-Tōhē—Ninety Mile Beach (NMB)—in northern New Zealand. Despite the economic and ecological importance of this spat supply,...

Thermal-stress events on coral reefs lead to coral bleaching, mortality, and changes in species composition. The coral reefs of Yap, in the Federated States of Micronesia, however, remained largely unaffected by major thermal-stress events until 2020, when temperatures were elevated for three months. Twenty-nine study sites were examined around Yap...

Background Zooplankton plays an important role in the marine ecosystem. A high level of taxonomic expertise is necessary for accurate species identification based on morphological characteristics. As an alternative method to morphological classification, we focused on a molecular approach using 18S and 28S ribosomal RNA (rRNA) gene sequences. This...

Historic limitations have resulted in marine ecological studies usually overlooking some well-established concepts from behavioural ecology. This is likely because the methods available were easily overwhelmed by the scale of ecological processes and sampling resolution in the marine environment. Innovations in technology, data management, and stat...

Marine viruses are a major driver of phytoplankton mortality and thereby influence biogeochemical cycling of carbon and other nutrients. Phytoplankton-targeting viruses are important components of ecosystem dynamics, but broad-scale experimental investigations of host-virus interactions remain scarce. Here, we investigated in detail a picophytoplan...

The Tara Pacific program and expedition focused on coral reefs across the Pacific Ocean and used a coordinated sampling effort to address questions at multiple scales using a common suite of samples. Here, we highlight some of the Tara Pacific achievements, discussing the benefits of long-duration sea expeditions for investigating a wide array of r...

Coral reef science is a fast-growing field propelled by the need to better understand coral health and resilience to devise strategies to slow reef loss resulting from environmental stresses. Key to coral resilience are the symbiotic interactions established within a complex holobiont, i.e. the multipartite assemblages comprising the coral host org...