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1,034 Results Found

  • Article
  • Open Access
6 Citations
6,484 Views
16 Pages

Effects of Sound from Seismic Surveys on Fish Reproduction, the Management Case from Norway

  • Lise Doksæter Sivle,
  • Emilie Hernes Vereide,
  • Karen de Jong,
  • Tonje Nesse Forland,
  • John Dalen and
  • Henning Wehde

Anthropogenic noise has been recognized as a source of concern since the beginning of the 1940s and is receiving increasingly more attention. While international focus has been on the effects of noise on marine mammals, Norway has managed seismic sur...

  • Article
  • Open Access
3 Citations
964 Views
22 Pages

1 September 2025

Assessing fish biodiversity is essential for freshwater ecosystem conservation. This study compares environmental DNA (eDNA) metabarcoding and traditional morphological surveys to investigate fish communities in the Gaya River, China. A total of 42 f...

  • Article
  • Open Access
5 Citations
2,986 Views
11 Pages

Comparison of Two Types of Survey Designs for Acoustic Estimates of Fish Resources in the Three Gorges Reservoir, China

  • Yuxi Lian,
  • Shaowen Ye,
  • Małgorzata Godlewska,
  • Geng Huang,
  • Jiacheng Wang,
  • Jiashou Liu and
  • Zhongjie Li

2 September 2022

Pre-planning for a rational survey design is essential to improve the reliability and efficiency of the acoustic assessment of fishery resources in large water bodies. In this study, we compared the differences in acoustic estimates of fish resources...

  • Article
  • Open Access
8 Citations
3,183 Views
20 Pages

22 September 2022

In recent years, environmental DNA (eDNA) technology has gradually improved, and it has been increasingly used to monitor marine fish. The decline and seasonal fluctuations of fish resources in Laizhou Bay, Bohai were studied using eDNA technology an...

  • Article
  • Open Access
15 Citations
6,558 Views
20 Pages

24 August 2022

An international survey was conducted regarding species used for research, methods of euthanasia, health monitoring, and biosecurity in fish laboratories. A total of 145 facilities from 23 countries contributed. Collectively, over 80 different specie...

  • Article
  • Open Access
17 Citations
5,937 Views
15 Pages

A Comparative Genomic and Transcriptomic Survey Provides Novel Insights into N-Acetylserotonin Methyltransferase (ASMT) in Fish

  • Kai Zhang,
  • Zhiqiang Ruan,
  • Jia Li,
  • Chao Bian,
  • Xinxin You,
  • Steven L. Coon and
  • Qiong Shi

2 October 2017

Melatonin is a multifunctional bioactive molecule that plays comprehensive physiological roles in all living organisms. N-acetylserotonin methyltransferase (ASMT, also known as hydroxyindole O-methyltransferase or HIOMT) is the final enzyme for biosy...

  • Article
  • Open Access
19 Citations
4,725 Views
13 Pages

9 January 2020

Mercury is a cumulative neurotoxic agent, exposure to high levels of which may increase the risk of psychiatric symptoms. The purpose of this study was to examine the associations between blood mercury and depression risk in Korean adults. We analyze...

  • Article
  • Open Access
1 Citations
3,031 Views
15 Pages

18 November 2024

The Tumen River, which delineates the border between China, North Korea, and Russia, is a vital river in Northeast Asia. Understanding its current fish diversity holds significant scientific value for aquatic ecological protection. Therefore, traditi...

  • Feature Paper
  • Article
  • Open Access
7 Citations
2,786 Views
16 Pages

23 May 2024

The Yellow River Estuary and its adjacent waters serve as crucial spawning, foraging, and nursery areas for marine organisms, possessing abundant biological resources. Monitoring fish communities provides a baseline for implementing the sustainable u...

  • Article
  • Open Access
16 Citations
4,212 Views
16 Pages

High-Resolution Acoustic Cameras Provide Direct and Efficient Assessments of Large Demersal Fish Populations in Extremely Turbid Waters

  • Céline Artero,
  • Simon Marchetti,
  • Eric Bauer,
  • Christophe Viala,
  • Claire Noël,
  • Christopher C. Koenig,
  • Rachel Berzins and
  • Luis Lampert

22 February 2021

Monitoring fish species populations in very turbid environments is challenging. Acoustic cameras allow work in very poor visibility but are often deployed as a fixed observation point, limiting the scope of the survey. A BlueView P900-130 acoustic ca...

  • Technical Note
  • Open Access
8 Citations
3,164 Views
14 Pages

20 September 2023

Successful aquatic ecosystem conversation strategies depend on high-quality data from monitoring studies and improved habitat requirement knowledge. Remote Underwater Video (RUV) is a non-extractive alternative to capture-based techniques for studyin...

  • Article
  • Open Access
2,074 Views
21 Pages

20 January 2025

Freshwater fish community surveys are an important component of aquatic ecosystem management. However, the standard method for taxonomic identification currently used for these surveys, wherein fishes are manually identified in the field by a taxonom...

  • Article
  • Open Access
2,457 Views
17 Pages

Catch-And-Release Fishing: A Case Study in Poland

  • Tomasz Kajetan Czarkowski,
  • Andrzej Kapusta,
  • Joanna Nowosad,
  • Anna Hakuć-Błażowska,
  • Arkadiusz Duda and
  • Krzysztof Kupren

11 May 2025

The purpose of this study is to determine the current state of angler knowledge, opinions, awareness, and use of catch-and-release (C&R) best practices and to identify the main socio-economic factors that determine attitudes and willingness to us...

  • Article
  • Open Access
1 Citations
3,972 Views
17 Pages

Sting Stories: Firsthand Experiences of Fish Envenomation Through a Small-Scale Questionnaire

  • Richard J. Harris,
  • Silvia L. Saggiomo,
  • Gillian Paxton and
  • Cherie A. Motti

13 March 2025

Stings from venomous bony and cartilaginous fishes are known to cause extreme pain in humans, and with changing migratory patterns and distributions due to climate change, human interactions with venomous fishes may increase. Therefore, developing a...

  • Article
  • Open Access
4 Citations
2,870 Views
18 Pages

Resource management for fisheries plays a pivotal role in fostering a sustainable fisheries industry. In Japan, resource surveys rely on manual measurements by staff, incurring high costs and limitations on the number of feasible measurements. This s...

  • Brief Report
  • Open Access
4 Citations
2,151 Views
4 Pages

11 November 2022

As a clinical diagnostic technique, fluorescence in situ hybridization (FISH) is simple, reliable, cost-effective and widely applicable. Due to technology advances, automation systems are adapted in FISH in different ways, involving all and/or some o...

  • Article
  • Open Access
1 Citations
2,692 Views
13 Pages

19 July 2021

In this study, the identification of dominant fish species in the East Sea was conducted using the dB-difference method. The survey was conducted using the two frequencies of 38 and 120 kHz in transect 6 of the southern part of the East Sea. Informat...

  • Article
  • Open Access
2 Citations
4,114 Views
17 Pages

21 April 2024

The diverse freshwater fish fauna of the Japanese archipelago is distributed among four main island landmasses, which include Hokkaido in the north, with many diadromous species. One relatively well-preserved river drainage along the southern coast o...

  • Article
  • Open Access
1 Citations
1,702 Views
20 Pages

Anglers Perceptions About European Catfish Silurus glanis in a Newly Invaded Region

  • João Gago,
  • Rui Rivaes,
  • Diogo Ribeiro,
  • Diogo Dias,
  • Paul Castagné,
  • Frédéric Santoul and
  • Filipe Ribeiro

31 March 2025

To avoid the spread and environmental impacts of the European catfish (Silurus glanis), which arrived in Portugal around 2006, it is fundamental to understand anglers’ behaviors and perceptions. To address this need, 339 Portuguese anglers were...

  • Article
  • Open Access
617 Views
10 Pages

Conventional fish population sampling methods such as electrofishing and netting, pose risks to fish and are often restricted to small, shallow headwater streams—especially where endangered species may be present. Additionally, non-capture surv...

  • Article
  • Open Access
7 Citations
4,983 Views
15 Pages

29 January 2019

Consumption guidelines are a common way of improving conscious consumption behaviors in areas where game fish are known to contain contaminants. However, guideline information can be difficult to distribute, and effectiveness difficult to measure. To...

  • Article
  • Open Access
42 Citations
8,916 Views
9 Pages

26 June 2018

It is widely known that rapid population growth and income improvement in some developing countries, and growing health consciousness in some developed countries, are the main factors that have contributed to the global increase in the consumption of...

  • Feature Paper
  • Article
  • Open Access
4 Citations
2,840 Views
11 Pages

27 May 2022

The Pearl River is a global hotspot of fish biodiversity, yet has the most threatened endemic fish species in China. Since the establishment of the Changzhou Dam in the lower reach, changes in hydrological rhythm have negatively impacted fish downstr...

  • Review
  • Open Access
6 Citations
3,316 Views
19 Pages

Studying Chondrichthyans Using Baited Remote Underwater Video Systems: A Review

  • Francesco Luigi Leonetti,
  • Massimiliano Bottaro,
  • Gianni Giglio and
  • Emilio Sperone

25 June 2024

Cartilaginous fish face significant threats due to overfishing and slow reproductive rates, leading to rapid declines in their populations globally. Traditional capture-based surveys, while valuable for gathering ecological information, pose risks to...

  • Article
  • Open Access
1 Citations
2,334 Views
14 Pages

11 December 2023

Hydrology and temperature are known as key drivers for fish migration in floodplain-channel systems of large rivers. The Lower Irtysh contains valuable species of whitefish and sturgeon. Thus, along the Konda River, a complex study was carried out in...

  • Article
  • Open Access
5 Citations
3,237 Views
12 Pages

10 December 2022

The Wallacean shortfall refers to the knowledge gap in biodiversity distributions. There is still limited knowledge for freshwater fish species despite the importance of focusing conservation efforts towards this group due to their alarming extinctio...

  • Article
  • Open Access
1,991 Views
33 Pages

22 March 2025

eDNA appears well positioned to play a significant role in the future of biomonitoring, and the need to assess the efficacy of eDNA-based surveys in a variety of habitats is increasing. We conducted an eDNA metabarcoding-based survey of fish communit...

  • Article
  • Open Access
11 Citations
6,074 Views
15 Pages

Evaluation of Marine Recreational Fisheries and Their Relation to Sustainability of Fisheries Resources in Greece

  • Anastasios Papadopoulos,
  • Konstantinos Touloumis,
  • Emmanouil Tziolas,
  • Dimitrios Boulamatsis and
  • Emmanouil Koutrakis

24 March 2022

During 2019, Greece conducted a nationwide telephone survey in order to estimate the number of marine recreational fishers (MRF), to identify the main fishing methods, to estimate their effort, economic aspects of their activity and to evaluate certa...

  • Article
  • Open Access
4,473 Views
19 Pages

Sustainability of the Portuguese North-Western Fishing Activity in the Face of the Recently Implemented Maritime Spatial Planning

  • Emilio Salas-Leiton,
  • Ana Costa,
  • Vanessa Neves,
  • Joana Soares,
  • Adriano Bordalo and
  • Sérgia Costa-Dias

24 January 2022

The Maritime Spatial Planning (MSP) for continental Portugal was approved in December 2019 and has established a novel framework for those players that carry out maritime activities. In light of this challenge, our work addresses the current status o...

  • Article
  • Open Access
1 Citations
3,410 Views
16 Pages

Rockfish Species Trends in Puget Sound, Washington, USA, 2009–2023

  • Katharine N. Shelledy,
  • Amy Y. Olsen,
  • Alexander Tanz,
  • Megan H. Williams,
  • Jeff Christiansen,
  • Heidi Wilken,
  • Chris Van Damme and
  • Shawn Larson

11 October 2023

Rockfishes (Sebastes spp.) are a long-lived, understudied, multi-species fish assemblage in inland Washington (USA) waters. Driven by large-scale fishery removals in the 1970s, their numbers declined and have yet to recover, perhaps due to slow matur...

  • Article
  • Open Access
7 Citations
4,136 Views
15 Pages

Round Goby Detection in Lakes Huron and Michigan—An Evaluation of eDNA and Fish Catches

  • Kasia J. Przybyla-Kelly,
  • Ashley M. Spoljaric and
  • Meredith B. Nevers

6 January 2023

Aquatic surveys for fish in large water bodies (e.g., Laurentian Great Lakes of North America) often require a flexible approach using multiple methods, surveying different depths, and sampling across seasons, especially when the target species is el...

  • Article
  • Open Access
21 Citations
10,927 Views
2 Pages

Airborne Remote Sensing of a Biological Hot Spot in the Southeastern Bering Sea

  • James H. Churnside,
  • Evelyn D. Brown,
  • Sandra Parker-Stetter,
  • John K. Horne,
  • George L. Hunt,
  • Nicola Hillgruber,
  • Michael F. Sigler and
  • Johanna J. Vollenweider

21 March 2011

Intense, ephemeral foraging events within localized hot spots represent important trophic transfers to top predators in marine ecosystems, though the spatial extent and temporal overlap of predators and prey are difficult to observe using traditional...

  • Article
  • Open Access
1,686 Views
19 Pages

The Tasmanian Estuary Perch Population—A Threatened Species?

  • Jonah L. Yick,
  • Bryan Van Wyk and
  • James Haddy

15 January 2025

Estuary perch (Percalates colonorum) are a long-lived and slow-growing species which are distributed throughout southeastern Australian estuaries. In Tasmania, only one known population remains which is located in the Arthur River, on the remote nort...

  • Feature Paper
  • Article
  • Open Access
31 Citations
4,445 Views
11 Pages

29 December 2020

Fish and seafood are excellent sources of nutrients such as omega-3 fatty acids, Vitamin D, and selenium. The aims of this study were to examine the pattern of seafood consumption among Canadians and determine their contribution to intakes of energy...

  • Article
  • Open Access
7 Citations
2,411 Views
12 Pages

Comparison of Environmental DNA Metabarcoding and a Traditional Survey Method for Assessing Fish Diversity and Distribution Along Salinity Gradient in an Urban Brackish Reservoir, China

  • Xu Wang,
  • Jiaqiao Wang,
  • Lin Lin,
  • Liangmin Huang,
  • Kai Liu,
  • Guangjie Dai,
  • Qianwen Cai,
  • Jun Li,
  • Shilong Feng and
  • Guangzhao Wang
  • + 3 authors

15 November 2024

With the decrease in fish diversity, the monitoring of fish has become a current research hotspot. Here, the fish diversity and spatial distribution along a salinity gradient (0.28‰–3.32‰) in Xinglinwan Reservoir, China, were inve...

  • Article
  • Open Access
8 Citations
3,610 Views
14 Pages

16 December 2022

Generating accurate estimates of the number of vessels in fishing ports using traditional methods (i.e., ground- and boat-based) can be challenging as observations are distorted by an horizontal perspective. Automated inspection using drones is an em...

  • Article
  • Open Access
7 Citations
3,288 Views
13 Pages

The Mediator Role of Attitudes in Fish Choice Behavior: A Turkish Market Survey

  • Osman Inanç Güney,
  • Ilgın Özşahinoğlu,
  • Zeynep Erçen,
  • Hacer Yeldan,
  • Çiğdem Dikel and
  • Levent Sangün

12 October 2022

Due to the dynamic nature of demand, it is becoming increasingly important for the fish industry to investigate the changing choice behaviors of consumers in the face of increasing demand. This research investigated the role of attitudes and socio-de...

  • Article
  • Open Access
7 Citations
3,094 Views
12 Pages

24 May 2021

Conserving aquatic ecosystems requires efficient tools to accurately assess the biodiversity of aquatic species. However, existing knowledge is insufficient in terms of the reliability and the comparability of methods measuring fish diversity. Enviro...

  • Feature Paper
  • Article
  • Open Access
5 Citations
6,818 Views
19 Pages

Fish Ecology of the Alto Madre de Dios River Basin (Peru): Notes on Electrofishing Surveys, Elevation, Palm Swamp and Headwater Fishes

  • Ibon Tobes,
  • Adrián Ramos-Merchante,
  • Julio Araujo-Flores,
  • Andrea Pino-del-Carpio,
  • Hernán Ortega and
  • Rafael Miranda

9 April 2021

Our study analyzes the distribution of fish communities related to the environmental variables of the Alto Madre de Dios River, an Andean-Amazon watershed of southern Peru, between 300 and 2811 m a.s.l. within the Manu Biosphere Reserve. We provide n...

  • Article
  • Open Access
6 Citations
2,697 Views
11 Pages

Underwater Photographic Survey of Coastal Fish Community of Terra Nova Bay, Ross Sea

  • Mario La Mesa,
  • Simonepietro Canese,
  • Paolo Montagna and
  • Stefano Schiaparelli

21 April 2022

Although the extent of near-shore and coastal habitats around the Antarctic Continent is limited, they host an abundant and diversified fish fauna dominated by notothenioids. Nevertheless, the spatial distribution of fishes at small scales and their...

  • Abstract
  • Open Access
1,314 Views
2 Pages

Background and objectives: In Switzerland, conventional dairy and fish products are major sources of iodine, along with iodized salt. However, the growing popularity of plant-based alternatives may impact the iodine supply of the population. This stu...

  • Feature Paper
  • Article
  • Open Access
7 Citations
4,668 Views
19 Pages

Invasive Alien Species of Benthic Macroinvertebrates and Fish in the Bulgarian Sector of the Danube River—Results of the Joint Danube Survey 4 (JDS4)

  • Teodora Trichkova,
  • Milcho Todorov,
  • Marian Kenderov,
  • Zdravko Hubenov,
  • Ivan Botev,
  • Tihomir Stefanov,
  • Dilian Georgiev and
  • Pavel Jurajda

24 July 2022

The aim of this study was to assess the status of aquatic invasive alien species (IAS) in the shoreline zone of the Bulgarian sector of the Danube River, Danube tributaries, and adjacent standing water bodies in the frame of the Joint Danube Survey 4...

  • Article
  • Open Access
2 Citations
2,155 Views
19 Pages

16 November 2022

This paper presents research on the dewatering areas during drawdown operations in the Kaunas Hydropower Plant (HPP) reservoir situated in the lowland area of Lithuania. It is a multipurpose reservoir primarily used for power generation by two large...

  • Review
  • Open Access
32 Citations
8,924 Views
37 Pages

5 June 2021

The first part of this study evaluates the occurrence of mycotoxin patterns in feedstuffs and fish feeds. Results were extrapolated from a large data pool derived from wheat (n = 857), corn (n = 725), soybean meal (n = 139) and fish feed (n = 44) sam...

  • Article
  • Open Access
3 Citations
1,863 Views
16 Pages

3 October 2023

The National Yancheng Rare Birds Nature Reserve is a vitally important staging habitat for the wild population of red-crowned cranes (Grus japonensis) in China. The population relies on local high-protein food sources, such as fish juveniles, to fuel...

  • Article
  • Open Access
2 Citations
2,312 Views
19 Pages

The present research quantitatively compared the fish composition among two methods for non-cryptic benthic fish species and one method for cryptobenthic fish species for the first time for the Mediterranean temperate reef fish assemblage. A visual c...

  • Article
  • Open Access
1 Citations
2,394 Views
21 Pages

Experimentally Determining Optimal Conditions for Mapping Forage Fish with RPAS

  • Nicola R. Houtman,
  • Jennifer Yakimishyn,
  • Mike Collyer,
  • Jennifer Sutherst,
  • Cliff L. K. Robinson and
  • Maycira Costa

17 December 2022

RPAS (Remotely piloted aircraft systems, i.e., drones) present an efficient method for mapping schooling coastal forage fish species that have limited distribution and abundance data. However, RPAS imagery acquisition in marine environments is highly...

  • Article
  • Open Access
5 Citations
10,323 Views
11 Pages

Mental Health and Recreational Angling in UK Adult Males: A Cross-Sectional Study

  • Jason J. Wilson,
  • Mike Trott,
  • Mark A. Tully,
  • Rosie K. Lindsay,
  • Matt Fossey,
  • Lauren Godier-McBard,
  • Laurie T. Butler,
  • Andy Torrance and
  • Lee Smith

Exposure to aquatic environments (i.e., blue spaces) can lead to improved mental health and well-being. One meaningful way to spend time in blue spaces is through recreational angling, although limited scientific literature exists on this topic. The...

  • Interesting Images
  • Open Access
3 Citations
2,397 Views
7 Pages

Face-Down, Tail-Up: Unusual In Situ Behavior of the Blackchins Neoscopelus macrolepidotus, Neoscopelus microchir, and Scopelengys tristis (Myctophiformes: Neoscopelidae)

  • Leah A. Bergman,
  • Yoshihiro Fujiwara,
  • Victoria E. Assad,
  • Jessica N. Perelman,
  • Jeffrey C. Drazen and
  • Dhugal J. Lindsay

6 July 2023

Orienting vertically with the head facing upward allows fish to look for the shadow of their prey against ambient light, while also making their own shadow smaller to predators beneath them. Here, we describe the in situ behavior of three midwater fi...

  • Article
  • Open Access
1 Citations
1,762 Views
15 Pages

This study investigates the parasitic biodiversity of the fish species Astyanax bimaculatus and Psalidodon fasciatus in a stream located in the Chapada do Araripe Environmental Protection Area (APA), state of Ceará, Brazil, contributing to the...

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