scholarly journals Biota monitoring under the Water Framework Directive: On tissue choice and fish species selection

2018 ◽  
Vol 235 ◽  
pp. 129-140 ◽  
Author(s):  
Annette Fliedner ◽  
Heinz Rüdel ◽  
Nina Lohmann ◽  
Georgia Buchmeier ◽  
Jan Koschorreck
Keyword(s):  
Water Framework Directive ◽  
Fish Species ◽  
Species Selection ◽  
Biota Monitoring

scholarly journals Feasibility Study on Biomonitoring of Microplastics in Fish Gastrointestinal Tracts

2022 ◽  
Vol 8 ◽  
Author(s):  
Bavo De Witte ◽  
Ana I. Catarino ◽  
Loes Vandecasteele ◽  
Michael Dekimpe ◽  
Nelle Meyers ◽  
...  
Keyword(s):  
North Sea ◽  
Marine Environment ◽  
Fish Species ◽  
Nile Red ◽  
Species Selection ◽  
Polymer Composition ◽  
Sampling Effort ◽  
Advantages And Disadvantages ◽  
Nile Red Staining ◽  
Selection Of

Monitoring the occurrence and trends of microplastic contamination in the marine environment is key to establish microplastic (MP) data baselines, to work out policy mitigation measures, and to assess the effectiveness of waste regulations. To establish MP contamination baselines in the marine environment, marine biota species can be selected as monitoring matrices to track plastic pollution in the environment. The aim of this work was to evaluate the feasibility of biomonitoring MPs in fish gastrointestinal tract (GIT). A selection of suitable fish species was performed, based on species distribution, sampling effort, commercial value of species, sustainable development of fish populations, migration behaviour, and scientific evidence for occurrence of MPs in the fish GIT. Sampling and MP extraction protocols were developed and validated on fish GIT samples acquired in the Southern North Sea. The fish species selection protocol enabled the selection of ubiquitous distributed and non-endangered fish species relevant for MP monitoring in the North Sea. The fish GIT sampling protocol considered background contamination measures and sampling fillet as procedural blanks. Advantages and disadvantages of onboard dissection were discussed. The MPs extraction protocol was based on matrix digestion, density separation, and Nile red staining of particles followed by fluorescent microscopy observation. The confirmation of MPs identification and the analysis of the polymer composition was done using micro-Fourier transform infrared (μFTIR) spectroscopy. The MP analysis indicated a low number of MPs in the fish GIT. The mean number of particles per single fish GIT was 0.48 ± 0.81 (Nile red staining observations) to 0.26 ± 0.64 (corrected for background contamination). A power analysis (sampling effort) indicated that to detect significant differences, in a balanced-ANOVA type of analysis, between species and/or sampling areas, the sample size would require a minimum of 109 up to 370 individual fish. The feasibility of MP biomonitoring in fish GIT was assessed by a SWOT-analysis, which indicated that fish GIT is a suitable matrix for biomonitoring of MPs, but that the large number of samples needed to identify significant differences can be a major drawback. A potential implementation strategy for MP biomonitoring within Europe was suggested.

scholarly journals Fish is the Preferred Animal-Source Food in the Rural Community of Southern Bangladesh

2019 ◽  
Vol 11 (20) ◽  
pp. 5764 ◽  
Author(s):  
Rumana Akter ◽  
Shakuntala H. Thilsted ◽  
Nazia Hossain ◽  
Hiroe Ishihara ◽  
Nobuyuki Yagi
Keyword(s):  
Fish Species ◽  
Study Groups ◽  
Species Selection ◽  
Dietary Interventions ◽  
The Sustainable Development ◽  
Nutrition Security ◽  
Animal Source ◽  
Study Population ◽  
Development Goals ◽  
Small Bones

Increased intake of animal-source foods (ASFs) is crucial to tackle multiple nutritional challenges in Bangladesh, and contribute to achieving targets under the Sustainable Development Goals (SDGs). Qualitative and quantitative data were collected to assess current ASFs intake behaviors and preferred ASFs, among three types of households, namely 1. aquaculture intervention (AI); 2. aquaculture non-intervention (ANI); and 3. non-aquaculture non-intervention (NANI) households and children aged 6–59 months, to understand whether intake of ASFs vary by the types of households. Purposive sampling was conducted to obtain a total of 100 households (AI, 50; ANI, 25; NANI, 25). Fish was the most commonly consumed (52.2–61.5%) and preferred (73.9–84.6%) ASF by the majority households, across study groups; although amount (mean ± SD) of intake (g/d/person) by NANI households was statistically significantly lower (NANI, 105.5 ± 53.3; p < 0.001), compared to other two groups (AI, 163.6 ± 64.7 and ANI, 159.6 ± 53). Fish species selection for household consumption was led by taste, health benefits, availability, and price. Pangasius was the first fish species of choice fed to children, due to having fewer small bones compared to other commonly consumed fish species. Dietary interventions to prioritize fish, in targeting increased intake of ASFs among study population, for improved food and nutrition security.

scholarly journals Biota monitoring and the Water Framework Directive—can normalization overcome shortcomings in sampling strategies?

2016 ◽  
Vol 23 (21) ◽  
pp. 21927-21939 ◽  
Author(s):  
Annette Fliedner ◽  
Heinz Rüdel ◽  
Diana Teubner ◽  
Georgia Buchmeier ◽  
Jaqueline Lowis ◽  
...  
Keyword(s):  
Water Framework Directive ◽  
Sampling Strategies ◽  
Biota Monitoring

A practical example of the challenges of biota monitoring under the Water Framework Directive

2014 ◽  
Vol 59 ◽  
pp. 103-111 ◽  
Author(s):  
Roberto Lava ◽  
Laszlo I. Majoros ◽  
Ioannis Dosis ◽  
Marina Ricci
Keyword(s):  
Water Framework Directive ◽  
Biota Monitoring

Monitoring of the Environmental Effects of Pulp Mill Discharges in Chilean Rivers: Lessons Learned and Challenges

2010 ◽  
Vol 45 (2) ◽  
pp. 111-122 ◽  
Author(s):  
Gustavo Chiang ◽  
Kelly R. Munkittrick ◽  
Rodrigo Orrego ◽  
Ricardo Barra
Keyword(s):  
Fish Species ◽  
Small Body ◽  
Monitoring Program ◽  
Pulp Mill ◽  
Global Market ◽  
Biological Data ◽  
Lessons Learned ◽  
Species Selection ◽  
Biological Organization ◽  
Pulp Mill Effluents

Abstract Environmental monitoring activities in Chile are relatively new and have traditionally relied on physicochemical measurements. The pulp mill industry in Chile is highly competitive in the global market and several new large mills have recently opened. Early studies on fish in the receiving environments revealed lower species richness and an increase in the abundance of introduced species relative to native ones near pulp mill discharges. Even though changes were observed, their relationship with the discharges was unclear. Several difficulties related to small body sizes and the unavailability of basic biological data for native Chilean fish species were found during initial field studies. One of the main challenges is the standardization of monitoring methods (including fish species selection, sampling sizes, indicators, reference sites, etc.) and consensus about the responses that should be considered in a river monitoring program in the Chilean context. This paper summarizes major findings from a series of studies looking at impacts on fish at different levels of biological organization and the current approach used in Chile for monitoring impacts of pulp mill effluents on wild fish populations.

Characterization and evolution of spearfishing in Madeira archipelago, Eastern Atlantic

2020 ◽  
Vol 33 ◽  
pp. 15
Author(s):  
Roi Martínez-Escauriaza ◽  
Claudio Vieira ◽  
Lídia Gouveia ◽  
Nuno Gouveia ◽  
Margarida Hermida
Keyword(s):  
Fish Species ◽  
Young Men ◽  
Coastal Areas ◽  
Teleost Fishes ◽  
The North ◽  
Southeast Coast ◽  
Madeira Archipelago ◽  
First Time

Data obtained from licenses of spearfishers and surveys conducted in 2004 and 2017 allowed for the analysis, for the first time, of the practice of spearfishing in the Madeira archipelago. Only a small percentage of the population practices spearfishing, mostly local young men. Most of them practice the activity with a partner throughout most of the year and along most of the island's coastal areas, although preferentially along the North and Southeast coast. Results show how, in recent years, despite the population of spearfishers decreasing, the abundance in the annual catch potentially increased, probably due to the higher investment of time in this activity. It has been observed that many fishers complement their catches with manual collecting of invertebrates. Overall, 40 teleost fishes and also 4 crustaceans and 8 molluscs were identified. The most frequently captured fish species were parrotfish and white seabream, while limpets were the most collected invertebrates in both selected periods.

Effects of Drying Methods on the Biochemical Composition and Organoleptic Properties of Two Freshwater Fish Species (Mormyrus rume and Labeo coubie) of Cross River Obubra, Nigeria

2019 ◽  
Vol 2 (1) ◽  
Keyword(s):  
Moisture Content ◽  
Fish Species ◽  
Nutrition Status ◽  
Drying Methods ◽  
Organoleptic Properties ◽  
Nutrient Quality ◽  
Oven Drying ◽  
Fish Samples ◽  
Fish And Fishery Products ◽  
Mormyrus Rume

Consumers all over the world are increasingly becoming aware of the health and nutrition status of fish and fishery products. There have develop some preference for fish species and even their processing methods. This study aims to investigate the effects of two drying methods (smoking and oven drying) on the biochemical components and organoleptic properties of two less preferred food fishes abundant in the study area. The fish samples Mormyrus rume and Labeo coubie were purchased from fresh landings of fishermen at Ahaha beach. The biochemical assay of the moisture, protein, fat, carbohydrate, ash, calcium (Ca), magnesium (Mg), phosphorus (P), iron (Fe), sodium (Na) and potassium (K) were conducted in the labouratory using standard methods. The proximate composition of raw M. rume was determined as moisture 70.38%, protein 17.43%, carbohydrate 1.13%, fat 5.93% and ash 2.77% while oven dried were 18.78, 63.85, 3.37, 8.73 and 7.58% respectively. All the proximate parameters and gross energy level investigated were higher (p < 0.05) in M. rume except the moisture content of dried samples of L. coubie. The mineral content were in the order Ca < Mg < Fe < Na < P and < K in both species and were higher in M. rume except Na. The drying methods showed increase in the proximate and mineral compositions in the order raw < smoking and < oven drying except moisture content that decreased respectively is both species. Organoleptic properties revealed that dried samples (smoked and oven) were not significantly different (p < 0.05) in taste, flavour, texture and overall acceptance, however while oven dried had better colour (4.33), smoked dried taste (4.63) better. The drying methods shows concentration of the required nutrients in human diets and were also found to be most palatable by the panellist. To improve fish nutrient quality smoke and oven drying should be encourage.

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