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Rodriguez-Romeu O, Constenla M, Soler-Membrives A, Dutto G, Saraux C, Schull Q. Sardines in hot water: Unravelling plastic fibre ingestion and feeding behaviour effects. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 363:125035. [PMID: 39343348 DOI: 10.1016/j.envpol.2024.125035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Revised: 09/03/2024] [Accepted: 09/26/2024] [Indexed: 10/01/2024]
Abstract
Small pelagics are small fish species often schooling that mainly feed on planktonic organisms and are foraging species of larger animals. These species have experienced important declines in their wild populations during the last decades. For instance, the decrease of the European sardine (Sardina pilchardus) body condition has had a detrimental impact on its landings, leaving their commercial fishing unprofitable in some Mediterranean areas. The causes for this decline are not clearly established but seems to be mainly related to changes with planktonic communities inducing a switch in their foraging behaviour from particulate-feeding to filter-feeding. Moreover, it has been highlighted that sardines ingest plastic fibres throughout their natural spatial distribution, suggesting this additional pollution as a possible new threat affecting their populations' health. In this study we developped an experimental setup allowing us to maintain wild fish in captive controlled conditions in order to test the possible factors affecting plastic fibres ingestion in sardines. We demonstrate that sardines ingest fibres from water, and the amount of fibres ingested is highly impacted by their feeding behaviour. Sardines feeding by filtration ingest less food but more plastic fibres (mean = 4.95 fibres/ind; SD = 3.43), compared to sardines that feed by particulate-feeding (mean = 0.6 fibres/ind; SD = 1.04). Moreover, a decrease in sardine body condition factor was detected for filter-feeding individuals, mostly linked to the lower amount of food they ingested rather than to the fibre ingestion itself. Nonetheless, higher water temperature seems to accelerate the pattern of fibre expulsion in filter-feeding sardines. Alltogether, it is suggested that plastic fibres pollution and phytoplanctonic changes under global change, might synergistically act at disturbing the health of this species in wild populations.
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Affiliation(s)
- Oriol Rodriguez-Romeu
- Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193, Barcelona, Spain
| | - Maria Constenla
- Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193, Barcelona, Spain
| | - Anna Soler-Membrives
- Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193, Barcelona, Spain.
| | - Gilbert Dutto
- MARBEC, Univ Montpellier, IFREMER, IRD, CNRS, Palavas les flôts, France
| | - Claire Saraux
- Université de Strasbourg, CNRS, Institut Pluridisciplinaire Hubert Curien (IPHC) UMR 7178, 23 rue du Loess, 67037, Strasbourg, Cedex 2, France
| | - Quentin Schull
- MARBEC, Univ Montpellier, IFREMER, IRD, CNRS, Sète, France
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2
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Dettoto C, Maccantelli A, Barbieri MV, Baini M, Fernández-Arribas J, Panti C, Giani D, Galli M, Eljarrat E, Fossi MC. Plasticizers levels in four fish species from the Ligurian Sea and Central Adriatic Sea (Mediterranean Sea) and potential risk for human consumption. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 954:176442. [PMID: 39317248 DOI: 10.1016/j.scitotenv.2024.176442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2024] [Revised: 09/18/2024] [Accepted: 09/19/2024] [Indexed: 09/26/2024]
Abstract
Plastic materials contain additives such as plasticizers and flame retardants, which are not covalently bound to plastic polymers and can therefore be unintentionally released into the marine environment. This study investigated three families of compounds, phthalates (PAEs), organophosphate esters (OPEs), and non-phthalate plasticizers (NPPs) currently used as plastic additives, in 48 muscle samples of bogue (Boops boops), European hake (Merluccius merluccius), red mullet (Mullus barbatus), and European pilchard (Sardina pilchardus) sampled in the Central Adriatic and the Ligurian Seas. The additional goal of this study is to assess the potential risk to human health from fish consumption with the objective of determining whether the detected levels might potentially pose a concern. PAEs represent the majority of the plastic additives detected in the selected species, with ubiquitous distribution across the study areas, whereas for OPEs and NPPs, there is a more pronounced difference between the two study areas, suggesting that these compounds may represent different exposure levels in the two seas. Among PAEs, bis(2-ethylhexyl) phthalate (DEHP), dibutyl phthalate (DBP), and diisobutyl phthalate (DIBP) were the most abundant compounds, reaching levels up to 455 ng/g ww. OPEs were detected at higher concentrations in samples from the Ligurian Sea, and triethyl phosphate (TEP) was the most abundant compound. Among the NPPs, acetyl tributyl citrate (ATBC) was most frequently detected. From the results obtained, fish consumption may not pose a risk to human health (Hazard Quotient<1) but needs to be considered in future studies. Given the limited number of studies on PAEs, OPEs and NPPs in the Mediterranean Sea, further research is necessary to understand their potential bioaccumulation in marine organisms.
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Affiliation(s)
- Chiara Dettoto
- Department of Physical Science, Earth and Environment, University of Siena, Siena, Italy
| | - Andrea Maccantelli
- Department of Physical Science, Earth and Environment, University of Siena, Siena, Italy; National Biodiversity Future Center, Palermo, Italy
| | - Maria Vittoria Barbieri
- Environmental and Water Chemistry for Human Health group (ONHEALTH), Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Barcelona, Spain
| | - Matteo Baini
- Department of Physical Science, Earth and Environment, University of Siena, Siena, Italy; National Biodiversity Future Center, Palermo, Italy.
| | - Julio Fernández-Arribas
- Environmental and Water Chemistry for Human Health group (ONHEALTH), Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Barcelona, Spain
| | - Cristina Panti
- Department of Physical Science, Earth and Environment, University of Siena, Siena, Italy; National Biodiversity Future Center, Palermo, Italy
| | - Dario Giani
- Department of Physical Science, Earth and Environment, University of Siena, Siena, Italy
| | - Matteo Galli
- Department of Physical Science, Earth and Environment, University of Siena, Siena, Italy
| | - Ethel Eljarrat
- Environmental and Water Chemistry for Human Health group (ONHEALTH), Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Barcelona, Spain
| | - Maria Cristina Fossi
- Department of Physical Science, Earth and Environment, University of Siena, Siena, Italy; National Biodiversity Future Center, Palermo, Italy
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3
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Queiros Q, McKenzie DJ, Dutto G, Killen S, Saraux C, Schull Q. Fish shrinking, energy balance and climate change. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 906:167310. [PMID: 37742954 DOI: 10.1016/j.scitotenv.2023.167310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 09/01/2023] [Accepted: 09/21/2023] [Indexed: 09/26/2023]
Abstract
A decline in size is increasingly recognised as a major response by ectothermic species to global warming. Mechanisms underlying this phenomenon are poorly understood but could include changes in energy balance of consumers, driven by declines in prey size coupled with increased energy demands due to warming. The sardine Sardina pilchardus is a prime example of animal shrinking, European populations of this planktivorous fish are undergoing profound decreases in body condition and adult size. This is apparently a bottom-up effect coincident with a shift towards increased reliance on smaller planktonic prey. We investigated the hypothesis that foraging on smaller prey would lead to increased rates of energy expenditure by sardines, and that such expenditures would be exacerbated by warming temperature. Using group respirometry we measured rates of energy expenditure indirectly, as oxygen uptake, by captive adult sardines offered food of two different sizes (0.2 or 1.2 mm items) when acclimated to two temperatures (16 °C or 21 °C). Energy expenditure during feeding on small items was tripled at 16 °C and doubled at 21 °C compared to large items, linked to a change in foraging mode between filter feeding on small or direct capture of large. This caused daily energy expenditure to increase by ~10 % at 16 °C and ~40 % at 21 °C on small items, compared to large items at 16 °C. These results support that declines in prey size coupled with warming could influence energy allocation towards life-history traits in wild populations. This bottom-up effect could partially explain the shrinking and declining condition of many small pelagic fish populations and may be contributing to the shrinking of other fish species throughout the marine food web. Understanding how declines in prey size can couple with warming to affect consumers is a crucial element of projecting the consequences for marine fauna of ongoing anthropogenic global change.
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Affiliation(s)
- Quentin Queiros
- MARBEC, Univ Montpellier, IFREMER, CNRS, IRD, Montpellier, Sète, Palavas-les-Flots, France; DECOD (Ecosystem Dynamics and Sustainability), INRAE, Institut Agro, IFREMER, Rennes, France.
| | - David J McKenzie
- MARBEC, Univ Montpellier, IFREMER, CNRS, IRD, Montpellier, Sète, Palavas-les-Flots, France
| | - Gilbert Dutto
- MARBEC, Univ Montpellier, IFREMER, CNRS, IRD, Montpellier, Sète, Palavas-les-Flots, France
| | - Shaun Killen
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Graham Kerr Building, Glasgow G12 8QQ, UK
| | - Claire Saraux
- IPHC UMR 7178, Université de Strasbourg, CNRS, Strasbourg, France
| | - Quentin Schull
- MARBEC, Univ Montpellier, IFREMER, CNRS, IRD, Montpellier, Sète, Palavas-les-Flots, France
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4
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Fanelli E, Da Ros Z, Menicucci S, Malavolti S, Biagiotti I, Canduci G, De Felice A, Leonori I. The pelagic food web of the Western Adriatic Sea: a focus on the role of small pelagics. Sci Rep 2023; 13:14554. [PMID: 37666876 PMCID: PMC10477188 DOI: 10.1038/s41598-023-40665-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 08/16/2023] [Indexed: 09/06/2023] Open
Abstract
The Adriatic Sea is one of the largest areas of occurrence of shared small pelagic stocks and the most fished area of the Mediterranean Sea, which is in turn one of the most exploited basins of the world. The variations in the stable isotope contents (δ15N and δ13C) were determined for three small pelagic fishes (i.e., Engraulis encrasicolus, Sardina pilchardus, and Sprattus sprattus, respectively known as anchovies, sardines and sprats) collected across the western side of the basin. Our data allowed to determine the width and features of their trophic niches, to assess potential overlap or resource partitioning among them, and likely anticipate species adaptation to future climate change scenarios. Moreover, variations in stable isotope contents were correlated to both resource availability (i.e., mesozooplankton) and environmental variables. The high productivity and in turn the high resource availability of the basin, especially in the northern part, resulted in favor of the resource partitioning that occurs in each sub-area of the Adriatic Sea among the three species. Medium-sized specimens of the three species mostly fed on small zooplankton, while adult sprats relied on large copepods and those of sardines and anchovies also consumed large portion of phytoplankton, confirming the high trophic plasticity of these two dominants small pelagic species. However, considering that anchovies have the greatest degree of trophic diversity compared with the other two species, they could be the most adapted to changing feeding conditions. The increase in sea temperatures that are reducing primary production and in turn zooplankton abundances, coupled with even more frequent extreme meteorologic events could exacerbate the competition for trophic resources among pelagic mesopredators, and could lead to more notable stocks' fluctuations and unpredictable wasp-waist effects.
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Affiliation(s)
- E Fanelli
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131, Ancona, Italy.
- Stazione Zoologica Anton Dohrn, Villa Comunale, Naples, Italy.
- Institute for Marine Biological Resources and Biotechnologies (IRBIM), National Research Council (CNR), Largo Fiera Della Pesca, 60125, Ancona, Italy.
| | - Z Da Ros
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131, Ancona, Italy
| | - S Menicucci
- Institute for Marine Biological Resources and Biotechnologies (IRBIM), National Research Council (CNR), Largo Fiera Della Pesca, 60125, Ancona, Italy
- Alma Mater Studiorum, Università di Bologna, Via Zamboni, 33, 40126, Bologna, Italy
| | - S Malavolti
- Institute for Marine Biological Resources and Biotechnologies (IRBIM), National Research Council (CNR), Largo Fiera Della Pesca, 60125, Ancona, Italy
| | - I Biagiotti
- Institute for Marine Biological Resources and Biotechnologies (IRBIM), National Research Council (CNR), Largo Fiera Della Pesca, 60125, Ancona, Italy
| | - G Canduci
- Institute for Marine Biological Resources and Biotechnologies (IRBIM), National Research Council (CNR), Largo Fiera Della Pesca, 60125, Ancona, Italy
| | - A De Felice
- Institute for Marine Biological Resources and Biotechnologies (IRBIM), National Research Council (CNR), Largo Fiera Della Pesca, 60125, Ancona, Italy
| | - I Leonori
- Institute for Marine Biological Resources and Biotechnologies (IRBIM), National Research Council (CNR), Largo Fiera Della Pesca, 60125, Ancona, Italy
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5
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Giani D, Andolina C, Baini M, Panti C, Sciandra M, Vizzini S, Fossi MC. Trophic niche influences ingestion of micro- and mesoplastics in pelagic and demersal fish from the Western Mediterranean Sea. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 328:121632. [PMID: 37059168 DOI: 10.1016/j.envpol.2023.121632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/25/2023] [Accepted: 04/11/2023] [Indexed: 05/09/2023]
Abstract
Plastic pollution has been extensively documented in the marine food web, but targeted studies focusing on the relationship between microplastic ingestion and fish trophic niches are still limited. In this study we investigated the frequency of occurrence and the abundance of micro- and mesoplastics (MMPs) in eight fish species with different feeding habits from the western Mediterranean Sea. Stable isotope analysis (δ13C and δ15N) was used to describe the trophic niche and its metrics for each species. A total of 139 plastic items were found in 98 out of the 396 fish analysed (25%). The bogue revealed the highest occurrence with 37% of individuals with MMPs in their gastrointestinal tract, followed by the European sardine (35%). We highlighted how some of the assessed trophic niche metrics seem to influence MMPs occurrence. Fish species with a wider isotopic niche and higher trophic diversity were more probable to ingest plastic particles in pelagic, benthopelagic and demersal habitats. Additionally, fish trophic habits, habitat and body condition influenced the abundance of ingested MMPs. A higher number of MMPs per individual was found in zooplanktivorous than in benthivore and piscivorous species. Similarly, our results show a higher plastic particles ingestion per individual in benthopelagic and pelagic species than in demersal species, which also resulted in lower body condition. Altogether, these results suggest that feeding habits and trophic niche descriptors can play a significant role in the ingestion of plastic particles in fish species.
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Affiliation(s)
- Dario Giani
- Department of Physical, Earth and Environmental Sciences, University of Siena, Siena, Italy
| | - Cristina Andolina
- Department of Earth and Marine Sciences, DiSTeM, University of Palermo, Italy; National Interuniversity Consortium for Marine Sciences, CoNISMa, Rome, Italy.
| | - Matteo Baini
- Department of Physical, Earth and Environmental Sciences, University of Siena, Siena, Italy
| | - Cristina Panti
- Department of Physical, Earth and Environmental Sciences, University of Siena, Siena, Italy; NBFC, National Biodiversity Future Center, 90133 Italy
| | - Mariangela Sciandra
- Department of Economics, Business and Statistics, University of Palermo, Palermo, Italy
| | - Salvatrice Vizzini
- Department of Earth and Marine Sciences, DiSTeM, University of Palermo, Italy; National Interuniversity Consortium for Marine Sciences, CoNISMa, Rome, Italy
| | - Maria Cristina Fossi
- Department of Physical, Earth and Environmental Sciences, University of Siena, Siena, Italy; NBFC, National Biodiversity Future Center, 90133 Italy
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6
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Mallik A, Bhushan S, Chakraborty P, Ramteke KK, Pal P, Jaiswar AK, Sreekanth GB, Nayak BB. Study of feeding biology and diet-associated microplastic contamination in selected creek fishes of northeastern Arabian Sea: A multi-species approach. MARINE POLLUTION BULLETIN 2023; 190:114875. [PMID: 37002968 DOI: 10.1016/j.marpolbul.2023.114875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 02/22/2023] [Accepted: 03/22/2023] [Indexed: 06/19/2023]
Abstract
This study investigated the diet composition and microplastic contamination in six fish species collected from the creek area of northeastern Arabian Sea. The results show that the diet of the fish is mainly composed of shrimps, algae, fish, and zooplankton, with microplastics constituting up to 4.83 % (Index of Preponderance) of their diet. The average abundance of microplastics ranges from 5.82 to 7.69 items per fish, and their ingestion is influenced by seasonal variation, gut fullness, and trophic level. Microplastic contamination has no significant effect on the condition factor and hepatosomatic index of the fish species. However, polymer hazard index indicates that microplastic pollution in fish is associated with a low to high risk factor, which might cause potential harm to aquatic lives and higher vertebrates via food chain. Therefore, this study highlights the need for immediate attention and effective regulations to reduce microplastic pollution to protect marine life.
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Affiliation(s)
- Abhijit Mallik
- ICAR-Central Institute of Fisheries Education, Mumbai 400061, India
| | - Shashi Bhushan
- ICAR-Central Institute of Fisheries Education, Mumbai 400061, India.
| | - Puja Chakraborty
- ICAR-Central Institute of Fisheries Education, Mumbai 400061, India
| | - K K Ramteke
- ICAR-Central Institute of Fisheries Education, Mumbai 400061, India
| | - Prasenjit Pal
- College of Fisheries, Central Agricultural University(I), 799210, India
| | - A K Jaiswar
- ICAR-Central Institute of Fisheries Education, Mumbai 400061, India
| | - G B Sreekanth
- ICAR - Central Coastal Agricultural Research Institute, Goa 403402, India
| | - B B Nayak
- ICAR-Central Institute of Fisheries Education, Mumbai 400061, India
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7
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Thoral E, Roussel D, Gasset E, Dutto G, Queiros Q, McKenzie DJ, Bourdeix JH, Metral L, Saraux C, Teulier L. Temperature-dependent metabolic consequences of food deprivation in the European sardine. J Exp Biol 2023; 226:286277. [PMID: 36621833 DOI: 10.1242/jeb.244984] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 12/23/2022] [Indexed: 01/10/2023]
Abstract
Aquatic ecosystems can exhibit seasonal variation in resource availability and animals have evolved to cope with the associated caloric restriction. During winter in the NW Mediterranean Sea, the European sardine Sardina pilchardus naturally experiences caloric restriction owing to a decrease in the diversity and quantity of plankton. However, ongoing global warming has had deleterious effects on plankton communities such that food shortages may occur throughout the year, especially under warm conditions in the summer. We investigated the interactive effects of temperature and food availability on sardine metabolism by continuously monitoring whole-animal respiration of groups of control (fed) and food-deprived sardines over a 60-day experiment in winter (12°C) or summer (20°C) conditions under natural photoperiod. In addition, we measured mitochondrial respiration of red muscle fibres, biometric variables and energy reserves of individuals sampled at 30 and 60 days. This revealed that winter food deprivation elicits energy saving mechanisms at whole animal and cellular levels by maintaining a low metabolism to preserve energy reserves, allowing high levels of survival. By contrast, despite energy saving mechanisms at the mitochondrial level, whole animal metabolic rate was high during food deprivation in summer, causing increased consumption of energy reserves at the muscular level and high mortality after 60 days. Furthermore, a 5-day re-feeding did not improve survival, and mortalities continued, suggesting that long-term food deprivation at high temperatures causes profound stress in sardines that potentially impairs nutrient absorption.
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Affiliation(s)
- Elisa Thoral
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, F-69622, Villeurbanne, France
| | - Damien Roussel
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, F-69622, Villeurbanne, France
| | - Eric Gasset
- MARBEC, Université de Montpellier, CNRS, Ifremer, IRD, chemin de Maguelonne, 34250 Palavas-les-Flots, France
| | - Gilbert Dutto
- MARBEC, Université de Montpellier, CNRS, Ifremer, IRD, chemin de Maguelonne, 34250 Palavas-les-Flots, France
| | - Quentin Queiros
- MARBEC, Université de Montpellier, CNRS, Ifremer, IRD, Avenue Jean Monnet, 34203 Sète Cedex, France.,DECOD (Ecosystem Dynamics and Sustainability), INRAE, Institut Agro, IFREMER, 35042 Rennes, France
| | - David J McKenzie
- MARBEC, Université de Montpellier, CNRS, Ifremer, IRD, Place Eugène Bataillon, 34095 Montpellier, France
| | - Jean-Hervé Bourdeix
- MARBEC, Université de Montpellier, CNRS, Ifremer, IRD, Avenue Jean Monnet, 34203 Sète Cedex, France
| | - Luisa Metral
- MARBEC, Université de Montpellier, CNRS, Ifremer, IRD, Avenue Jean Monnet, 34203 Sète Cedex, France
| | - Claire Saraux
- MARBEC, Université de Montpellier, CNRS, Ifremer, IRD, Avenue Jean Monnet, 34203 Sète Cedex, France.,IPHC, UMR7178, Université de Strasbourg, CNRS, 67000 Strasbourg, France
| | - Loïc Teulier
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, F-69622, Villeurbanne, France
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8
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Antoniou A, Manousaki T, Ramírez F, Cariani A, Cannas R, Kasapidis P, Magoulas A, Albo-Puigserver M, Lloret-Lloret E, Bellido JM, Pennino MG, Follesa MC, Esteban A, Saraux C, Sbrana M, Spedicato MT, Coll M, Tsigenopoulos CS. Sardines at a junction: Seascape genomics reveals ecological and oceanographic drivers of variation in the NW Mediterranean Sea. Mol Ecol 2023; 32:1608-1628. [PMID: 36596297 DOI: 10.1111/mec.16840] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 12/20/2022] [Accepted: 12/30/2022] [Indexed: 01/04/2023]
Abstract
By evaluating genetic variation across the entire genome, one can address existing questions in a novel way while raising new ones. The latter includes how different local environments influence adaptive and neutral genomic variation within and among populations, providing insights into local adaptation of natural populations and their responses to global change. Here, under a seascape genomic approach, ddRAD data of 4609 single nucleotide polymorphisms (SNPs) from 398 sardines (Sardina pilchardus) collected in 11 Mediterranean and one Atlantic site were generated. These were used along with oceanographic and ecological information to detect signals of adaptive divergence with gene flow across environmental gradients. The studied sardines constitute two clusters (FST = 0.07), a pattern attributed to outlier loci, highlighting putative local adaptation. The trend in the number of days with sea surface temperature above 19°C, a critical threshold for successful sardine spawning, was crucial at all levels of population structuring with implications on the species' key biological processes. Outliers link candidate SNPs to the region's environmental heterogeneity. Our findings provide evidence for a dynamic equilibrium in which population structure is maintained by physical and ecological factors under the opposing influences of migration and selection. This dynamic in a natural system warrants continuous monitoring under a seascape genomic approach that might benefit from a temporal and more detailed spatial dimension. Our results may contribute to complementary studies aimed at providing deeper insights into the mechanistic processes underlying population structuring. Those are key to understanding and predicting future changes and responses of this highly exploited species in the face of climate change.
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Affiliation(s)
- Aglaia Antoniou
- Institute of Marine Biology, Biotechnology and Aquaculture (IMBBC), Hellenic Centre for Marine Research (HCMR), Heraklion, Crete, Greece
| | - Tereza Manousaki
- Institute of Marine Biology, Biotechnology and Aquaculture (IMBBC), Hellenic Centre for Marine Research (HCMR), Heraklion, Crete, Greece
| | - Francisco Ramírez
- Institute of Marine Science (ICM-CSIC), Passeig Marítim de la Barceloneta, Barcelona, Spain
| | - Alessia Cariani
- Dept. Biological, Geological & Environmental Sciences (BiGeA), Alma Mater Studiorum - Università di Bologna, Ravenna, Italy.,Consorzio Nazionale Interuniversitario per le Scienze del Mare (CoNISMa), Rome, Italy
| | - Rita Cannas
- Consorzio Nazionale Interuniversitario per le Scienze del Mare (CoNISMa), Rome, Italy.,Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Panagiotis Kasapidis
- Institute of Marine Biology, Biotechnology and Aquaculture (IMBBC), Hellenic Centre for Marine Research (HCMR), Heraklion, Crete, Greece
| | - Antonios Magoulas
- Institute of Marine Biology, Biotechnology and Aquaculture (IMBBC), Hellenic Centre for Marine Research (HCMR), Heraklion, Crete, Greece
| | - Marta Albo-Puigserver
- Institute of Marine Science (ICM-CSIC), Passeig Marítim de la Barceloneta, Barcelona, Spain.,Centro Oceanográfico de Baleares, Instituto Español de Oceanografía (COB-CNIEO/CSIC), Palma, Spain
| | - Elena Lloret-Lloret
- Institute of Marine Science (ICM-CSIC), Passeig Marítim de la Barceloneta, Barcelona, Spain
| | - Jose Maria Bellido
- Centro Oceanográfico de Murcia, Instituto Español de Oceanografía, (COMU-CNIEO/CSIC), Murcia, Spain
| | - Maria Grazia Pennino
- Centro Oceanográfico de Vigo, Instituto Español de Oceanografía (COVI-CNIEO/CSIC), Vigo, Pontevedra, Spain
| | - Maria Cristina Follesa
- Consorzio Nazionale Interuniversitario per le Scienze del Mare (CoNISMa), Rome, Italy.,Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Antonio Esteban
- Centro Oceanográfico de Murcia, Instituto Español de Oceanografía, (COMU-CNIEO/CSIC), Murcia, Spain
| | - Claire Saraux
- MARBEC, University of Montpellier, CNRS, IFREMER, IRD, Sète, France
| | - Mario Sbrana
- Consorzio per il Centro Interuniversitario di Biologia Marina ed Ecologia Applicata G, Livorno, Italy
| | | | - Marta Coll
- Institute of Marine Science (ICM-CSIC), Passeig Marítim de la Barceloneta, Barcelona, Spain
| | - Costas S Tsigenopoulos
- Institute of Marine Biology, Biotechnology and Aquaculture (IMBBC), Hellenic Centre for Marine Research (HCMR), Heraklion, Crete, Greece
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9
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Caballero-Huertas M, Palomba M, Frigola-Tepe X, Muñoz M, Mattiucci S, Viñas J. Ascaridoid parasites in European sardine throughout the annual cycle: Variability in parasitic load according to host stock features. Int J Parasitol Parasites Wildl 2022; 20:1-11. [PMID: 36578301 PMCID: PMC9791428 DOI: 10.1016/j.ijppaw.2022.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/01/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022]
Abstract
In recent years, a drop in the condition of the European sardine has been observed. Although several causes have been attributed to this issue, as overfishing and climate change, little is known about the link between ascaridoid nematode parasitisation and fish status. In this study, sardines were obtained from four fishing grounds along the Mediterranean (Alboran, Northern Spain, Northern Adriatic, and Aegean), and one location in the Atlantic Ocean (Southern Portugal). After analysing individual fish body condition (by direct tissue fat content measurements and condition indices), and reproductive status (by a detailed gonadal examination) throughout the entire annual cycle, ascaridoids were recognised by combining naked eye and UV-press method along flesh, viscera, and gonads. Afterwards, sequence analysis of the rDNA internal transcribed spacers region (ITS) and the mtDNA cox2 gene were used to identify and characterise the different species of ascaridoids from the fish host in the localities throughout the seasons. The main species found along different areas was Hysterothylacium aduncum, present in the Northern Adriatic (prevalence of 7.6%, mean intensity 1.700), the Atlantic (7.5%, 3.889), and the Northern Spain (3.9%, 1.600). Moreover, few individuals of Anisakis simplex (s.s.) and A. pegreffii were observed in the Atlantic (1.7% and 0.8%, respectively), and the latter species was also found in the Adriatic stock (0.8%). All ascaridoid specimens were found in viscera. Obtained results seem to indicate that in stocks with medium sizes, small variations in length are related to parasite intensity. This study highlights the importance of seasonal parasitological analyses at stock level and, especially, in capital breeders, as relationships between condition and reproduction parameters and parasitism are conditioned by seasonality.
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Affiliation(s)
- Marta Caballero-Huertas
- Institute of Aquatic Ecology (IEA), Department of Environmental Sciences. Universitat de Girona (UdG), Campus Montilivi, 17003, Girona, Spain
| | - Marialetizia Palomba
- Department of Ecological and Biological Sciences (DEB). Tuscia University, 01100, Viterbo, Italy
| | - Xènia Frigola-Tepe
- Institute of Aquatic Ecology (IEA), Department of Environmental Sciences. Universitat de Girona (UdG), Campus Montilivi, 17003, Girona, Spain
| | - Marta Muñoz
- Institute of Aquatic Ecology (IEA), Department of Environmental Sciences. Universitat de Girona (UdG), Campus Montilivi, 17003, Girona, Spain
| | - Simonetta Mattiucci
- Department of Public Health and Infectious Diseases, Section of Parasitology. ‘Sapienza-University of Rome’, P.le Aldo Moro, 5, 00185, Rome, Italy
| | - Jordi Viñas
- Genetic Ichthyology Laboratory (LIG), Department of Biology. Universitat de Girona (UdG), Campus Montilivi, 17003, Girona, Spain,Corresponding author.
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10
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Diet of Adult Sardine Sardina pilchardus in the Gulf of Trieste, Northern Adriatic Sea. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2022. [DOI: 10.3390/jmse10081012] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Food availability is thought to exert a bottom-up control on the population dynamics of small pelagic fish; therefore, studies on trophic ecology are essential to improve their management. Sardina pilchardus is one of the most important commercial species in the Adriatic Sea, yet there is little information on its diet in this area. Adult sardines were caught in the Gulf of Trieste (northern Adriatic) from spring 2006 to winter 2007. Experimental catches conducted over 24-h cycles in May, June and July showed that the sardines foraged mainly in the late afternoon. A total of 96 adult sardines were analysed: the number of prey varied from a minimum of 305 to a maximum of 3318 prey/stomach, with an overall mean of 1259 ± 884 prey/stomach. Prey items were identified to the lowest possible taxonomical level, counted and measured at the stereo-microscope. Overall, sardines fed on a wide range of planktonic organisms (87 prey items from 17 μm to 18.4 mm were identified), with copepods being the most abundant prey (56%) and phytoplankton never exceeding 10% of the prey. Copepods of the Clauso-Paracalanidae group and of the genus Oncaea were by far the most important prey. The carbon content of prey items was indirectly estimated from prey dry mass or body volume. Almost all carbon uptake relied on a few groups of zooplankton. Ivlev’s selectivity index showed that sardines positively selected small preys (small copepods < 1 mm size), but also larger preys (such as teleost eggs, decapod larvae and chaetognaths), confirming their adaptive feeding capacity.
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11
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Kalaiselvan K, Pandurangan P, Velu R, Robinson J. Occurrence of microplastics in gastrointestinal tracts of planktivorous fish from the Thoothukudi region. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:44723-44731. [PMID: 35137319 DOI: 10.1007/s11356-022-19033-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 01/30/2022] [Indexed: 05/06/2023]
Abstract
Planktivorous fish are easily susceptible to passive microplastic ingestion during their feeding behaviour and may be transferred along with the marine food web. Hence, the present study was conducted to assess the microplastics prevalence in the planktivorous fish (677 individuals) collected from 2 landing centres in the Thoothukudi, Gulf of Mannar region, South Tamil Nadu, India. The prevalence of microplastics was detected in 118 out of 677 individuals, with a mean abundance and percent occurrence of 1.22 ± 0.47 items/individual and 17%, respectively. The ingestion of microplastics in planktivorous fish was primarily due to their feeding habitat, in which they were prone to the accidental or passive intake of microplastics regardless of the fish's length and body weight. The microplastics abundance was significantly higher in Sardinella gibbosa (1.34 ± 0.56 items/individual), which might be due to their pelagic and planktivorous feeding habitat, highest filtration capacity, presence of closed gill rakers, and also due to the passive ingestion of microplastics as food items. Fibres, blue, and 1 to 2mmsized microplastics were predominant in the guts of Sardinella gibbosa, accounting for 95.74, 47.87, and 46.80%, respectively, whereas in Leiognathus lineolatus, fragments, black, and 1 to 2mmsized microplastics were highly prevalent with 62.96, 72.22, and 79.62%, respectively. The predominance of various shapes (fragments, fibres), sizes (1-2 mm), and colours (blue and black) of microplastics in the guts of fish was influenced by their passive ingestion, ingestion of contaminated planktonic prey, lack of selectivity of prey particles and their resemblance to plankton species. Polypropylene polymers predominated (96.77% and 95.23%) in both fish, followed by polystyrene (3.22% and 4.76%). Furthermore, this study provides baseline data and insists that there is a need for continuous monitoring of the distribution of microplastics.
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Affiliation(s)
- Keerthika Kalaiselvan
- Department of Aquatic Environment Management, Fisheries College and Research Institute, Thoothukudi, Tamil Nadu, India.
| | - Padmavathy Pandurangan
- Department of Aquatic Environment Management, Fisheries College and Research Institute, Thoothukudi, Tamil Nadu, India
| | - Rani Velu
- Department of Aquatic Environment Management, Fisheries College and Research Institute, Thoothukudi, Tamil Nadu, India
| | - Jeyashakila Robinson
- Department of Fish Quality Assurance and Management, Fisheries College and Research Institute, Thoothukudi, Tamil Nadu, India
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12
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Lima ARA, Baltazar-Soares M, Garrido S, Riveiro I, Carrera P, Piecho-Santos AM, Peck MA, Silva G. Forecasting shifts in habitat suitability across the distribution range of a temperate small pelagic fish under different scenarios of climate change. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 804:150167. [PMID: 34798731 DOI: 10.1016/j.scitotenv.2021.150167] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 08/19/2021] [Accepted: 09/02/2021] [Indexed: 06/13/2023]
Abstract
Climate change often leads to shifts in the distribution of small pelagic fish, likely by changing the match-mismatch dynamics between these sensitive species within their environmental optima. Using present-day habitat suitability, we projected how different scenarios of climate change (IPCC Representative Concentration Pathways 2.6, 4.5 and 8.5) may alter the large scale distribution of European sardine Sardina pilchardus (a model species) by 2050 and 2100. We evaluated the variability of species-specific environmental optima allowing a comparison between present-day and future scenarios. Regardless of the scenario, sea surface temperature and salinity and the interaction between current velocity and distance to the nearest coast were the main descriptors responsible for the main effects on sardine's distribution. Present-day and future potential "hotspots" for sardine were neritic zones (<250 km) with water currents <0.4 m s-1, where SST was between 10 and 22 °C and SSS > 20 (PSU), on average. Most variability in projected shifts among climatic scenarios was in habitats with moderate to low suitability. By the end of this century, habitat suitability was projected to increase in the Canary Islands, Iberian Peninsula, central North Sea, northern Mediterranean, and eastern Black Sea and to decrease in the Atlantic African coast, southwest Mediterranean, English Channel, northern North Sea and Western U.K. A gradual poleward-eastward shift in sardine distribution was also projected among scenarios. This shift was most pronounced in 2100 under RCP 8.5. In that scenario, sardines had a 9.6% range expansion which included waters along the entire coast of Norway up and into the White Sea. As habitat suitability is mediated by the synergic effects of climate variability and change on species fitness, it is critical to apply models with robust underlying species-habitat data that integrate knowledge on the full range of processes shaping species productivity and distribution.
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Affiliation(s)
- André R A Lima
- ISPA - University Institute, Department of Biosciences, Rua jardim do tabaco, 34, 1149-041 Lisbon, Portugal; MARE - Marine and Environmental Sciences Centre, Rua da Matemática, 49, 3004-517 Coimbra, Portugal.
| | - Miguel Baltazar-Soares
- ISPA - University Institute, Department of Biosciences, Rua jardim do tabaco, 34, 1149-041 Lisbon, Portugal; MARE - Marine and Environmental Sciences Centre, Rua da Matemática, 49, 3004-517 Coimbra, Portugal
| | - Susana Garrido
- MARE - Marine and Environmental Sciences Centre, Rua da Matemática, 49, 3004-517 Coimbra, Portugal; Portuguese Institute for the Sea and the Atmosphere - IPMA, Av. Doutor Alfredo Magalhães Ramalho, 6, 1495-165 Algés, Portugal
| | - Isabel Riveiro
- IEO - Instituto Español de Oceanografía, Subida a Radio Faro 50, 36390 Vigo, Spain
| | - Pablo Carrera
- IEO - Instituto Español de Oceanografía, Subida a Radio Faro 50, 36390 Vigo, Spain
| | - A Miguel Piecho-Santos
- Portuguese Institute for the Sea and the Atmosphere - IPMA, Av. Doutor Alfredo Magalhães Ramalho, 6, 1495-165 Algés, Portugal; Centre of Marine Sciences of the University of Algarve (CCMAR), Campus de Gambelas, 8005-139 Faro, Portugal
| | - Myron A Peck
- NIOZ - Royal Netherlands Institute for Sea Research, Department of Coastal Systems (COS), PO Box 59, 1790 AB Den Burg, Texel, the Netherlands
| | - Gonçalo Silva
- ISPA - University Institute, Department of Biosciences, Rua jardim do tabaco, 34, 1149-041 Lisbon, Portugal; MARE - Marine and Environmental Sciences Centre, Rua da Matemática, 49, 3004-517 Coimbra, Portugal
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13
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Bertrand M, Brosset P, Soudant P, Lebigre C. Spatial and ontogenetic variations in sardine feeding conditions in the Bay of Biscay through fatty acid composition. MARINE ENVIRONMENTAL RESEARCH 2022; 173:105514. [PMID: 34753048 DOI: 10.1016/j.marenvres.2021.105514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 10/27/2021] [Accepted: 10/30/2021] [Indexed: 06/13/2023]
Abstract
Food characteristics are amongst the most influential factors determining the fish life history traits as quantitative and qualitative changes in individuals' diet can lead to a decline in the energy allocated to their growth, and hence influence natural populations' characteristics. The size-at-age and weight of European sardines (Sardina pilchardus) in the Bay of Biscay (BoB) have decreased substantially over the last decade, especially for the youngest age classes, and the factors underlying such changes have not yet been identified. We therefore analysed the fatty acid (FA) composition in the neutral (NL) and polar (PL) lipids in samples collected across the BoB to determine whether the diet of sardines changes with their ages. We found that the total FA contents in both lipid fractions varied mainly with the sampling locations and age. Indeed, sardines aged 1 and 2 years living in South BoB had particularly high contents in FA specific to non-diatom phytoplankton, while older sardines living in the Northern part had higher total FA content and more FA specific to copepods. These differences probably resulted from differences in prey availability and to a lesser extend a change in feeding behaviour with age. The strong dependence of younger sardines' diet to phytoplankton in spring suggests that changes in primary production may explain their decline in size-at-age. Finally, NL clearly reflect finest feeding variations in comparison to PL imprinted by diet variations at longer time scale. Future studies should consider separately NL and PL fractions.
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Affiliation(s)
- Mathilde Bertrand
- Ifremer, Laboratoire de Biologie Halieutique, ZI Pointe du Diable - CS 10070, 29 280, Plouzané, France; Université de Brest - UMR 6539 CNRS/UBO/IRD/Ifremer, Laboratoire des sciences de l'environnement marin, IUEM, Rue Dumont D'Urville, 29280, Plouzané, France.
| | - Pablo Brosset
- Ifremer, Laboratoire de Biologie Halieutique, ZI Pointe du Diable - CS 10070, 29 280, Plouzané, France; Université de Brest - UMR 6539 CNRS/UBO/IRD/Ifremer, Laboratoire des sciences de l'environnement marin, IUEM, Rue Dumont D'Urville, 29280, Plouzané, France; ESE Ecologie et Santé des Ecosystèmes, Agrocampus Ouest, INRAE, 65 rue de Saint-Brieuc, 35042, Rennes Cedex, France
| | - Philippe Soudant
- Université de Brest - UMR 6539 CNRS/UBO/IRD/Ifremer, Laboratoire des sciences de l'environnement marin, IUEM, Rue Dumont D'Urville, 29280, Plouzané, France
| | - Christophe Lebigre
- Ifremer, Laboratoire de Biologie Halieutique, ZI Pointe du Diable - CS 10070, 29 280, Plouzané, France.
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14
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Bachiller E, Giménez J, Albo‐Puigserver M, Pennino MG, Marí‐Mena N, Esteban A, Lloret‐Lloret E, Bellido JM, Coll M. Trophic niche overlap between round sardinella ( Sardinella aurita) and sympatric pelagic fish species in the Western Mediterranean. Ecol Evol 2021; 11:16126-16142. [PMID: 34824816 PMCID: PMC8601905 DOI: 10.1002/ece3.8293] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 10/12/2021] [Accepted: 10/15/2021] [Indexed: 01/27/2023] Open
Abstract
The northward expansion of round sardinella (Sardinella aurita) in the Mediterranean Sea, together with declines and fluctuations in biomass and landings of European sardine (Sardina pilchardus) and anchovy (Engraulis encrasicolus) observed in recent decades, may suggest potential inter-specific competition in the pelagic domain. The coexistence of sympatric zooplanktivorous fish species might therefore be exposed in part to trophic niche overlap and competition for food. Combining visual diet characterization under the microscope with DNA metabarcoding from stomach contents of fish collected in spring results show that predation on relatively large krill is equally important for sardinella than for the other two niche overlapping species. Furthermore, an important overlap is found in their isotopic niche, especially with anchovy, using nitrogen (δ15N) and carbon (δ13C) stable isotopes in muscle tissue. In fact, the three fish species are able to feed effectively in the whole prey size spectrum available during the sampled season, from the smallest diatoms and copepods to the larger prey (i.e., decapods and euphausiids), including fish larvae. Moreover, effective predation upon other large prey like siphonophores, which is observed only when multi-proxy analyses in stomach contents are applied, might also be relevant in the diet of sardinella. The overlapping diet composition in spring, together with the effective use of food resource by sardinella, can be of special interest in potential future scenarios with warmer water temperature leading to lower zooplankton and/or higher jellyfish availability, where sardinella may take advantage over other species due to its feeding plasticity.
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Affiliation(s)
- Eneko Bachiller
- Marine Renewable Resources DepartmentInstitute of Marine Science (ICM‐CSIC)BarcelonaSpain
| | - Joan Giménez
- Marine Renewable Resources DepartmentInstitute of Marine Science (ICM‐CSIC)BarcelonaSpain
- MaREI CentreEnvironmental Research InstituteUniversity College CorkCorkIreland
- School of Biological, Earth, and Environmental SciencesUniversity College CorkCorkIreland
| | - Marta Albo‐Puigserver
- Marine Renewable Resources DepartmentInstitute of Marine Science (ICM‐CSIC)BarcelonaSpain
- Centro de Ciências do MarUniversidade do Algarve (CCMAR‐UAlg)FaroPortugal
| | | | | | - Antonio Esteban
- Centro Oceanográfico de MurciaInstituto Español de OceanografíaSan Pedro del PinatarSpain
| | - Elena Lloret‐Lloret
- Marine Renewable Resources DepartmentInstitute of Marine Science (ICM‐CSIC)BarcelonaSpain
| | - José María Bellido
- Centro Oceanográfico de MurciaInstituto Español de OceanografíaSan Pedro del PinatarSpain
| | - Marta Coll
- Marine Renewable Resources DepartmentInstitute of Marine Science (ICM‐CSIC)BarcelonaSpain
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15
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Romero J, Vieira C, Garrido S, Hermida M, Catry P, Faria G, Granadeiro JP. Diet and trophic position of two mackerel species in the archipelago of Madeira, Portugal. JOURNAL OF FISH BIOLOGY 2021; 99:831-843. [PMID: 33900637 DOI: 10.1111/jfb.14766] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 04/15/2021] [Accepted: 04/21/2021] [Indexed: 06/12/2023]
Abstract
The Atlantic chub mackerel Scomber colias and the blue jack mackerel Trachurus picturatus are two abundant species in the Macaronesia region which includes the archipelago of Madeira, Portugal. Both are key species in the trophic web, being important prey for several local top predators, such as seabirds and marine mammals. Nonetheless, little is known about their feeding ecology in oceanic environments. In this study, the authors describe the seasonal variation in the diet of S. colias and T. picturatus in the oceanic region of Madeira throughout a year. Visual inspection of stomach contents revealed that S. colias fed on a broader range of prey groups than T. picturatus, but for both species, zooplankton (particularly calanoid copepods) and fish were the most important food items. The diet of S. colias included a higher proportion of fish, namely Atlantic saury Scomberesox saurus and S. colias, than that of T. picturatus, that included mostly the longspine snipefish Macroramphosus scolopax. T. picturatus consumed a higher proportion of decapods and other copepods. Seasonal variation was found in the diet of both species, with zooplanktonic species being more important in colder months (February to April) for S. colias and during warm months (May to October) for T. picturatus. Their diet in other seasons was dominated by fish. Although they consume similar prey, carbon and nitrogen stable isotope analysis of muscle of S. colias and T. picturatus showed little overlap in their diets, and T. picturatus showed higher δ15 N and a narrower isotopic niche.
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Affiliation(s)
- Joana Romero
- Centre for Environmental and Marine Studies (CESAM), Departamento de Biologia Animal, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal
| | - Carolina Vieira
- Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Susana Garrido
- IPMA - Portuguese Institute for Sea and Atmosphere, Lisbon, Portugal
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa Campo Grande, Lisbon, Portugal
| | - Margarida Hermida
- MARE - Marine and Environmental Sciences Centre, Agência Regional para o Desenvolvimento da Investigação Tecnologia e Inovação (ARDITI), Edifício Madeira Tecnopolo, Funchal, Portugal
- Oceanic Observatory of Madeira, Agência Regional para o Desenvolvimento da Investigação Tecnologia e Inovação (ARDITI), Edifício Madeira Tecnopolo, Caminho da Penteada, Funchal, Portugal
- University of Bristol, Bristol, UK
| | - Paulo Catry
- MARE, Marine and Environmental Sciences Centre, ISPA-Instituto Universitário, Lisbon, Portugal
| | - Graça Faria
- Research Service, Direção Regional de Pescas (DRP), (Regional Directorate of Fisheries), Funchal, Portugal
| | - José Pedro Granadeiro
- Centre for Environmental and Marine Studies (CESAM), Departamento de Biologia Animal, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal
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16
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Thoral E, Queiros Q, Roussel D, Dutto G, Gasset E, McKenzie DJ, Romestaing C, Fromentin JM, Saraux C, Teulier L. Changes in foraging mode caused by a decline in prey size have major bioenergetic consequences for a small pelagic fish. J Anim Ecol 2021; 90:2289-2301. [PMID: 34013518 DOI: 10.1111/1365-2656.13535] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 05/10/2021] [Indexed: 12/13/2022]
Abstract
Global warming is causing profound modifications of aquatic ecosystems and one major outcome appears to be a decline in adult size of many fish species. Over the last decade, sardine populations in the Gulf of Lions (NW Mediterranean Sea) have shown severe declines in body size and condition as well as disappearance of the oldest individuals, which could not be related to overfishing, predation pressure or epizootic diseases. In this study, we investigated whether this situation reflects a bottom-up phenomenon caused by reduced size and availability of prey that could lead to energetic constraints. We fed captive sardines with food items of two different sizes eliciting a change in feeding mode (filter-feeding on small items and directly capturing larger ones) at two different rations for several months, and then assessed their muscle bioenergetics to test for changes in cellular function. Feeding on smaller items was associated with a decline in body condition, even at high ration, and almost completely inhibited growth by comparison to sardines fed large items at high ration. Sardines fed on small items presented specific mitochondrial adjustments for energy sparing, indicating a major bioenergetic challenge. Moreover, mitochondria from sardines in poor condition had low basal oxidative activity but high efficiency of ATP production. Notably, when body condition was below a threshold value of 1.07, close to the mean observed in the wild, it was directly correlated with basal mitochondrial activity in muscle. The results show a link between whole-animal condition and cellular bioenergetics in the sardine, and reveal physiological consequences of a shift in feeding mode. They demonstrate that filter-feeding on small prey leads to poor growth, even under abundant food and an increase in the efficiency of ATP production. These findings may partially explain the declines in sardine size and condition observed in the wild.
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Affiliation(s)
- Elisa Thoral
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, Villeurbanne, France
| | | | - Damien Roussel
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, Villeurbanne, France
| | - Gilbert Dutto
- Ifremer (Institut Français de Recherche pour l'Exploitation de la MER), Laboratoire SEA, Palavas-Les-Flots, France
| | - Eric Gasset
- MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Palavas-Les-Flots, France
| | - David J McKenzie
- MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Montpellier, France
| | - Caroline Romestaing
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, Villeurbanne, France
| | | | - Claire Saraux
- MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Sète, France.,IPHC, UMR7178, Université de Strasbourg, CNRS, Strasbourg, France
| | - Loïc Teulier
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, Villeurbanne, France
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17
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Imant EN, Novoselov AP. Dynamics of Zooplankton Composition in the Lower Northern Dvina River and Some Factors Determining Zooplankton Abundance. RUSS J ECOL+ 2021; 52:59-69. [PMID: 33623356 PMCID: PMC7891486 DOI: 10.1134/s1067413621010045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 06/22/2020] [Accepted: 06/30/2020] [Indexed: 11/23/2022]
Abstract
Abstract-The long-term dynamics of the taxonomic composition of zooplankton in the lower reaches of the Northern Dvina River and the effect of some hydrochemical factors on its abundance have been studied. It is found that the species list of the zooplankton has included 141 species over 50 years: it consisted of a total of 98 taxa in 1965 and 104 taxa in 2012-2019. The results of analyzing the spatiotemporal abundance distribution of the zooplankton and its taxonomic groups are presented. A significant increase in abundance (on account of copepods) and changes in the taxonomic structure of zooplankton have been revealed in the lower parts of the study water area. In 2019, changes in the structure-forming complex of zooplankton were noted for the first time over the study period. It is found that species diversity reaches high values in waters classified as "heavily polluted" and "dirty," which is evidence for a complex structure of zooplankton communities. The main factor influencing the horizontal distribution of the zooplankton abundance is the dissolved oxygen content of water.
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Affiliation(s)
- E N Imant
- Laverov Federal Center for Integrated Arctic Research, Ural Branch, Russian Academy of Sciences, 163000 Arkhangelsk, Russia
| | - A P Novoselov
- Laverov Federal Center for Integrated Arctic Research, Ural Branch, Russian Academy of Sciences, 163000 Arkhangelsk, Russia
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18
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Albertos S, Berenguer NI, Sánchez-Virosta P, Gómez-Ramírez P, Jiménez P, Torres-Chaparro MY, Valverde I, Navas I, María-Mojica P, García-Fernández AJ, Espín S. Mercury Exposure in Birds Linked to Marine Ecosystems in the Western Mediterranean. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 79:435-453. [PMID: 33106911 DOI: 10.1007/s00244-020-00768-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Accepted: 10/03/2020] [Indexed: 06/11/2023]
Abstract
Mercury (Hg), particularly as methylmercury (MeHg), is a nonessential, persistent, and bioaccumulative toxic element with high biomagnification capacity and is considered a threat to marine environments. We evaluated total Hg concentrations in liver, kidney, and brain in 62 individuals of 9 bird species linked to marine ecosystems from western Mediterranean admitted in a Wildlife Rehabilitation Center (WRC) (Alicante, Spain, 2005-2020). Age- and sex-related differences in Hg levels, as well as the cause of admission to the WRC, were also evaluated in certain species. The species studied were: northern gannet (Morus bassanus), European shag (Phalacrocorax aristotelis), great cormorant (Phalacrocorax carbo), osprey (Pandion haliaetus), Balearic shearwater (Puffinus mauretanicus), yellow-legged gull (Larus michahellis), razorbill (Alca torda), common tern (Sterna hirundo), and black-headed gull (Chroicocephalus ridibundus). Concentrations in feathers of 27 individuals, and concentrations in internal tissues in 7 other individuals of 7 different species were also reported but not statistically evaluated due to the limited number of samples. Results suggest that individuals were chronically exposed to Hg through diet. The differences in Hg concentrations among species may be explained by their diet habits. Mercury concentrations strongly correlated between tissues (r = 0.78-0.94, p < 0.001, n = 61-62). Some individuals of certain species (i.e., European shag, northern gannet, and great cormorant) showed Hg concentrations close to or above those described in the literature as causing reproductive alterations in other avian species. Consequently, certain individuals inhabiting western Mediterranean could be at risk of suffering long-term, Hg-related effects. Some of the species evaluated are listed within different categories of threat according to the International Union for Conservation of Nature (IUCN) and are endangered at a national level, so this study will provide valuable information for assessors and authorities in charge of the management of the environment and pollution.
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Affiliation(s)
- Silvia Albertos
- Department of Socio-Sanitary Sciences, Faculty of Veterinary, Area of Toxicology, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain
| | - Neus I Berenguer
- Department of Socio-Sanitary Sciences, Faculty of Veterinary, Area of Toxicology, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain
| | - Pablo Sánchez-Virosta
- Department of Socio-Sanitary Sciences, Faculty of Veterinary, Area of Toxicology, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain
| | - Pilar Gómez-Ramírez
- Department of Socio-Sanitary Sciences, Faculty of Veterinary, Area of Toxicology, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain
- Toxicology and Risk Assessment Group, IMIB-Arrixaca, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain
| | - Pedro Jiménez
- Department of Socio-Sanitary Sciences, Faculty of Veterinary, Area of Toxicology, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain
| | - María Y Torres-Chaparro
- Department of Socio-Sanitary Sciences, Faculty of Veterinary, Area of Toxicology, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain
| | - Irene Valverde
- Department of Socio-Sanitary Sciences, Faculty of Veterinary, Area of Toxicology, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain
| | - Isabel Navas
- Department of Socio-Sanitary Sciences, Faculty of Veterinary, Area of Toxicology, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain
- Toxicology and Risk Assessment Group, IMIB-Arrixaca, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain
| | - Pedro María-Mojica
- Department of Socio-Sanitary Sciences, Faculty of Veterinary, Area of Toxicology, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain.
- "Santa Faz" Wildlife Rehabilitation Center, Consellería de Agricultura, Medio Ambiente, Cambio Climático y Desarrollo Rural, Alicante, Generalitat Valenciana, Spain.
| | - Antonio J García-Fernández
- Department of Socio-Sanitary Sciences, Faculty of Veterinary, Area of Toxicology, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain.
- Toxicology and Risk Assessment Group, IMIB-Arrixaca, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain.
| | - Silvia Espín
- Department of Socio-Sanitary Sciences, Faculty of Veterinary, Area of Toxicology, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain.
- Toxicology and Risk Assessment Group, IMIB-Arrixaca, University of Murcia, Campus de Espinardo, 30100, Murcia, Spain.
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Bachiller E, Albo-Puigserver M, Giménez J, Pennino MG, Marí-Mena N, Esteban A, Lloret-Lloret E, Jadaud A, Carro B, Bellido JM, Coll M. A trophic latitudinal gradient revealed in anchovy and sardine from the Western Mediterranean Sea using a multi-proxy approach. Sci Rep 2020; 10:17598. [PMID: 33077761 PMCID: PMC7572414 DOI: 10.1038/s41598-020-74602-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 10/05/2020] [Indexed: 12/21/2022] Open
Abstract
This work combines state-of-the-art methods (DNA metabarcoding) with classic approaches (visual stomach content characterization and stable isotope analyses of nitrogen (δ15N) and carbon (δ13C)) to investigate the trophic ecology of anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus) at high taxonomic and spatial resolution in the Western Mediterranean Sea. Gut contents observed are in accordance with the dietary plasticity generally described for anchovy and sardine, suggesting a diet related to the opportunistic ingestion of available prey in a certain area and/or time. Genetic tools also showed modest inter-specific differences regarding ingested species. However, inter-specific and intra-specific differences in ingested prey frequencies and prey biomass reflected a latitudinal signal that could indicate a more effective predation on large prey like krill by anchovy versus sardine, as well as a generalized higher large prey ingestion by both species southwards. In fact, both species presented lower δ15N in the northernmost area. This latitudinal gradient indicates changes in the trophic ecology of anchovy and sardine that coincide with previously described better biological conditions for fish in the southern part of the study area as well as higher landings of both species in recent years.
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Affiliation(s)
- Eneko Bachiller
- Institut de Ciències del Mar (ICM-CSIC), Passeig Marítim de la Barceloneta, 37-49, 08003, Barcelona, Spain. .,AZTI, Sustainable Fisheries Management (Data), Basque Research and Technology Alliance (BRTA), Txatxarramendi uhartea z/g, 48395, Sukarrieta, Bizkaia (Basque Country), Spain.
| | - Marta Albo-Puigserver
- Institut de Ciències del Mar (ICM-CSIC), Passeig Marítim de la Barceloneta, 37-49, 08003, Barcelona, Spain
| | - Joan Giménez
- Institut de Ciències del Mar (ICM-CSIC), Passeig Marítim de la Barceloneta, 37-49, 08003, Barcelona, Spain
| | - Maria Grazia Pennino
- Instituto Español de Oceanografía, Centro Oceanográfico de Vigo, Subida Radio Faro, 50, 36390, Vigo, Spain
| | - Neus Marí-Mena
- AllGenetics and Biology SL, Edificio CICA, Campus de Elviña, 15008, A Coruña, Spain
| | - Antonio Esteban
- Instituto Español de Oceanografía, Centro Oceanográfico de Murcia, Varadero 1 Apdo 22, 30740, San Pedro del Pinatar, Murcia, Spain
| | - Elena Lloret-Lloret
- Institut de Ciències del Mar (ICM-CSIC), Passeig Marítim de la Barceloneta, 37-49, 08003, Barcelona, Spain
| | - Angelique Jadaud
- Marine Biodiversity, Exploitation and Conservation (MARBEC), Ifremer, University Montpellier, CNRS, IRD, Sète, France
| | - Belén Carro
- AllGenetics and Biology SL, Edificio CICA, Campus de Elviña, 15008, A Coruña, Spain
| | - José María Bellido
- Instituto Español de Oceanografía, Centro Oceanográfico de Murcia, Varadero 1 Apdo 22, 30740, San Pedro del Pinatar, Murcia, Spain
| | - Marta Coll
- Institut de Ciències del Mar (ICM-CSIC), Passeig Marítim de la Barceloneta, 37-49, 08003, Barcelona, Spain
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Pennino MG, Bachiller E, Lloret-Lloret E, Albo-Puigserver M, Esteban A, Jadaud A, Bellido JM, Coll M. Ingestion of microplastics and occurrence of parasite association in Mediterranean anchovy and sardine. MARINE POLLUTION BULLETIN 2020; 158:111399. [PMID: 32753184 DOI: 10.1016/j.marpolbul.2020.111399] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 06/19/2020] [Accepted: 06/19/2020] [Indexed: 06/11/2023]
Abstract
We quantified the incidence of microplastics in the gut contents of the European sardine (Sardina pilchardus) and anchovy (Engraulis encrasicolus) in the Northwestern Mediterranean Sea and tested which variables influence this abundance, including the prevalence of parasites (i.e., trematoda larvae and nematodes). We detected a 58% occurrence of microplastics ingestion in sardines and a 60% in anchovies. With respect to sardines, the individuals with lower body conditions were found to have the highest microplastics ingestion probabilities, whereas in anchovies such probabilities were observed in individuals with higher gonadosomatic indices and smaller size. The areas with the highest microplastics ingestion probabilities were the Gulf of Alicante for sardines and the Gulf of Lion - Ebro Delta for anchovies. Both species showed a positive relationship between parasites and microplastics ingestion. These results highlight that both parasitism and ingestion of microplastics are concerns for the health of marine stocks and human consumers.
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Affiliation(s)
- Maria Grazia Pennino
- Instituto Español de Oceanografía, Centro Oceanográfico de Vigo, Subida a Radio Faro, 50-52, 36390 Vigo, Pontevedra, Spain; Fishing Ecology Management and Economics (FEME), Universidade Federal do Rio Grande do Norte - UFRN, Depto. de Ecologia, Natal, RN, Brazil; Statistical Modeling Ecology Group (SMEG), Departament d'Estadística i Investigació Operativa, Universitat de València, C/Dr. Moliner 50, Burjassot 46100, Valencia, Spain.
| | - Eneko Bachiller
- Institut de Ciències del Mar (CMIMA-CSIC), P. Marítim de la Barceloneta, 37-49, 08003 Barcelona, Spain
| | - Elena Lloret-Lloret
- Institut de Ciències del Mar (CMIMA-CSIC), P. Marítim de la Barceloneta, 37-49, 08003 Barcelona, Spain
| | - Marta Albo-Puigserver
- Institut de Ciències del Mar (CMIMA-CSIC), P. Marítim de la Barceloneta, 37-49, 08003 Barcelona, Spain
| | - Antonio Esteban
- Instituto Español de Oceanografía, Centro Oceanográfico de Murcia, C/Varadero 1, San Pedro del Pinatar, 30740 Murcia, Spain
| | - Angélique Jadaud
- MARBEC, Ifremer, Univ. Montpellier, CNRS, IRD, Bd Jean Monnet B.P. 171, 34203 Sète Cedex, France
| | - José María Bellido
- Statistical Modeling Ecology Group (SMEG), Departament d'Estadística i Investigació Operativa, Universitat de València, C/Dr. Moliner 50, Burjassot 46100, Valencia, Spain; Instituto Español de Oceanografía, Centro Oceanográfico de Murcia, C/Varadero 1, San Pedro del Pinatar, 30740 Murcia, Spain
| | - Marta Coll
- Statistical Modeling Ecology Group (SMEG), Departament d'Estadística i Investigació Operativa, Universitat de València, C/Dr. Moliner 50, Burjassot 46100, Valencia, Spain; Institut de Ciències del Mar (CMIMA-CSIC), P. Marítim de la Barceloneta, 37-49, 08003 Barcelona, Spain
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21
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Copepod Community Structure in Pre- and Post- Winter Conditions in the Southern Adriatic Sea (NE Mediterranean). JOURNAL OF MARINE SCIENCE AND ENGINEERING 2020. [DOI: 10.3390/jmse8080567] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Copepod communities were studied along an east-west transect in the oligotrophic Southern Adriatic Sea. This dynamic region is under the influence of various physical forces, including winter vertical convection, lateral exchanges between coastal and open sea waters, and ingression of water masses of different properties all of which occurred during the investigation periods. Depth-stratified samples were taken with a Nansen net (250 µm mesh size) in pre- and post-winter conditions in 2015/2016. In December, the coastal copepod community was limited over the western flank, while epipelagic waters of the open and eastern waters were characterized by high diversity, low abundances in the central area, and subsurface/upper mesopelagic copepod species. In April, higher abundances were recorded over the entire vertical profile with the surface coastal copepod community present through the entire transect. Higher abundances in the central area during the post-winter period are probably a consequence of late-winter/early spring blooms near the center of the Southern Adriatic. Mesopelagic fauna of both months was characterized by high abundances of Haloptilus longicornis, characteristic species of the eastern Mediterranean, whose larger presence was favored by the cyclonic phase of the North Ionian Gyre and a consequent strong Levantine Intermediate Water ingression.
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Rind K, Rodriguez-Barucg Q, Nicolas D, Cucchi P, Lignot JH. Morphological and physiological traits of Mediterranean sticklebacks living in the Camargue wetland (Rhone river delta). JOURNAL OF FISH BIOLOGY 2020; 97:51-63. [PMID: 32166744 DOI: 10.1111/jfb.14323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 02/27/2020] [Accepted: 03/03/2020] [Indexed: 06/10/2023]
Abstract
Three-spined sticklebacks (Gasterosteus aculeatus L.) living at the southern limit of the species distribution range could possess specific morphological and physiological traits that enable these fish to live at the threshold of their physiological capacities. Morphological analysis was carried out on samples of sticklebacks living in different saline habitats of the Camargue area (Rhone delta, northern Mediterranean coast) obtained from 1993 to 2017. Salinity acclimation capacities were also investigated using individuals from freshwater-low salinity drainage canals and from mesohaline-euryhaline lagoons. Fish were maintained in laboratory conditions at salinity values close to those of their respective habitats: low salinity (LS, 5‰) or seawater (SW, 30‰). Fish obtained from a mesohaline brackish water lagoon (BW, 15‰) were acclimated to SW or LS. Oxygen consumption rates and branchial Na+ /K+ -ATPase (NKA) activity (indicator of fish osmoregulatory capacity) were measured in these LS or SW control fish and in individuals subjected to abrupt SW or LS transfers. At all the studied locations, only the low-plated "leiurus" morphotype showed no spatial or temporal variations in their body morphology. Gill rakers were only longer and denser in fish sampled from the LS-freshwater (FW) drainage canals. All fish presented similar physiological capacities. Oxygen consumption rates were not influenced by salinity challenge except in SW fish transferred to LS immediately and 1 h after transfer. However, and as expected, gill NKA activity was salinity dependent. Sticklebacks of the Camargue area sampled from habitats with contrasted saline conditions are homogenously euryhaline, have low oxygen consumption rates and do not appear to experience significantly greater metabolic costs when challenged with salinity. However, an observed difference in gill raker length and density is most probably related to the nutritional condition of their habitat, indicating that individuals can rapidly acclimatize to different diets.
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Affiliation(s)
- Khalid Rind
- Shaheed Benazir Bhutto University Shaheed Benazirabad, Nawabshah, Pakistan
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23
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The orobranchial structures in four neotropical silversides (Teleostei: Atherinopsidae) related with feeding habits. ZOOMORPHOLOGY 2019. [DOI: 10.1007/s00435-019-00457-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Plaza G, Cerna F, Landaeta MF, Hernández A, Contreras JE. Daily growth patterns and age-at-recruitment of the anchoveta Engraulis ringens as indicated by a multi-annual analysis of otolith microstructure across developmental stages. JOURNAL OF FISH BIOLOGY 2018; 93:370-381. [PMID: 30069905 DOI: 10.1111/jfb.13773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 07/31/2018] [Indexed: 06/08/2023]
Abstract
The anchoveta (Engraulis ringens) plays a key role in the ecology of the Humboldt Current System and is of major economic importance; however, many aspects of its early life history are still poorly understood. In this study, an analysis of daily age and length patterns was carried out using the sagittal otoliths from wild larvae (0-0.2 cm standard length, LS ), pre-recruits (3-6 cm total length, LT ), recruits (7-12 cm LT ) and young adults (12-15 cm LT ). Additionally, variability in growth and age at recruitment (AR ) were evaluated for recruits caught in northern Chile in 1973, 1982, 2009, 2010, 2012, 2013, 2014 and 2015. The age-length relationship showed four allometric patterns that were well described by Laird-Gompertz models. The absolute growth rates at the inflexion point (GAR ) were 0.56, 0.75, 1.22 and 1.16 mm d-1 for larvae, pre-recruits, recruits and young adults, respectively. At the interannual scale, GAR values were always >1 mm d-1 (mean ± S.D. 1.37 ± 0.21 mm d-1 ; range 1.12-1.64 mm d-1 ), irrespective of the season of hatching (i.e. winter v. spring); additionally, in most cases, GAR values were reached before the second month of life (mean ± S.D. 50.47 ± 9.73 days) at c. 4 cm LT (mean ± S.D. 4.22 ± 0.29 cm). Mean AR was < 150 days (112 ± 29 days; range 75-149 days); in contrast, estimates of AR were higher and growth rates were lower in 1973, 1983 and 2000. These results demonstrate very fast growth and early AR of anchoveta in northern Chile, suggesting most fish are removed by the fisheries at very early ages. An evaluation of the implications of these results on stock assessment and management of this species is highly recommended.
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Affiliation(s)
- Guido Plaza
- Escuela de Ciencias del Mar, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | | | | | - Alejandra Hernández
- Escuela de Ciencias del Mar, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Jorge E Contreras
- Escuela de Ciencias del Mar, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
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Anastasopoulou A, Kovač Viršek M, Bojanić Varezić D, Digka N, Fortibuoni T, Koren Š, Mandić M, Mytilineou C, Pešić A, Ronchi F, Šiljić J, Torre M, Tsangaris C, Tutman P. Assessment on marine litter ingested by fish in the Adriatic and NE Ionian Sea macro-region (Mediterranean). MARINE POLLUTION BULLETIN 2018; 133:841-851. [PMID: 30041385 DOI: 10.1016/j.marpolbul.2018.06.050] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 06/15/2018] [Accepted: 06/17/2018] [Indexed: 05/22/2023]
Abstract
This study presents data on the marine litter occurrence in the stomachs of fish species living in different marine habitats for the Adriatic and NE Ionian Sea macro-region. "Macro-litter" was examined in 614 specimens belonging to 11 species, while micro-litter in 230 specimens belonging to 7 species. The study highlights for the first time the presence of litter in the stomachs of the fish species Citharus linguatula. The occurrence of "macro-litter" in the guts of fish was <3% in both the NE Ionian and N Adriatic but reached 26% in the S Adriatic Sea. Micro-litter occurrence was 40 for the NE Ionian and increased to 87% in the N Adriatic (Slovenian Sea). The ingested "macro" and micro-litter differed among the areas. The marine habitat was found to affect the "macro"-litter ingestion but not the micro-litter.
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Affiliation(s)
- Aikaterini Anastasopoulou
- Hellenic Center for Marine Research, Institute of Marine Biological Resources and Inland Water, 46.7 Km Athens Sounio, Mavro Lithari, P.O. Box 19013, Anavissos, Attica, Greece.
| | - Manca Kovač Viršek
- Institute for water of the Republic of Slovenia, Dunajska cesta 156, 1000 Ljubljana, Slovenia
| | | | - Nikoletta Digka
- Hellenic Center for Marine Research, Institute of Oceanography, 46.7 Km Athens Sounio, Mavro Lithari, P.O. Box 19013, Anavissos, Attica, Greece
| | - Tomaso Fortibuoni
- Italian National Institute for Environmental Protection and Research, Loc. Brondolo, 30015 Chioggia, VE, Italy; Institute of Oceanography Experimental Geophysics, Borgo Grotta Gigante 42/c, 34010 Sgonico, TS, Italy
| | - Špela Koren
- Institute for water of the Republic of Slovenia, Dunajska cesta 156, 1000 Ljubljana, Slovenia
| | - Milica Mandić
- University of Montenegro, Institute of Marine Biology, Dobrota bb, P. Box 69, 85330 Kotor, Montenegro
| | - Chryssi Mytilineou
- Hellenic Center for Marine Research, Institute of Marine Biological Resources and Inland Water, 46.7 Km Athens Sounio, Mavro Lithari, P.O. Box 19013, Anavissos, Attica, Greece
| | - Ana Pešić
- University of Montenegro, Institute of Marine Biology, Dobrota bb, P. Box 69, 85330 Kotor, Montenegro
| | - Francesca Ronchi
- Italian National Institute for Environmental Protection and Research, Loc. Brondolo, 30015 Chioggia, VE, Italy
| | - Jasna Šiljić
- Institute of Oceanography and Fisheries, Šetalište Ivana Meštrovića 63, 21000 Split, Croatia
| | - Michele Torre
- Hellenic Center for Marine Research, Institute of Marine Biological Resources and Inland Water, 46.7 Km Athens Sounio, Mavro Lithari, P.O. Box 19013, Anavissos, Attica, Greece
| | - Catherine Tsangaris
- Hellenic Center for Marine Research, Institute of Oceanography, 46.7 Km Athens Sounio, Mavro Lithari, P.O. Box 19013, Anavissos, Attica, Greece
| | - Pero Tutman
- Institute of Oceanography and Fisheries, Šetalište Ivana Meštrovića 63, 21000 Split, Croatia
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Neumann-Leitão S, Melo PAMC, Schwamborn R, Diaz XFG, Figueiredo LGP, Silva AP, Campelo RPS, de Melo Júnior M, Melo NFAC, Costa AESF, Araújo M, Veleda DRA, Moura RL, Thompson F. Zooplankton From a Reef System Under the Influence of the Amazon River Plume. Front Microbiol 2018; 9:355. [PMID: 29545783 PMCID: PMC5838004 DOI: 10.3389/fmicb.2018.00355] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 02/14/2018] [Indexed: 11/27/2022] Open
Abstract
At the mouth of the Amazon River, a widespread carbonate ecosystem exists below the river plume, generating a hard-bottom reef (∼9500 km2) that includes mainly large sponges but also rhodolith beds. The mesozooplankton associated with the pelagic realm over the reef formation was characterized, considering the estuarine plume and oceanic influence. Vertical hauls were carried out using a standard plankton net with 200 μm mesh size during September 2014. An indicator index was applied to express species importance as ecological indicators in community. Information on functional traits was gathered for the most abundant copepod species. Overall, 179 zooplankton taxa were recorded. Copepods were the richest (92 species), most diverse and most abundant group, whereas meroplankton were rare and less abundant. Species diversity (>3.0 bits.ind-1) and evenness (>0.6) were high, indicating a complex community. Small holoplanktonic species dominated the zooplankton, and the total density varied from 107.98 ind. m-3 over the reef area to 2,609.24 ind. m-3 in the estuarine plume, with a significant difference between coastal and oceanic areas. The most abundant copepods were the coastal species ithona plumifera and Clausocalanus furcatus and early stages copepodites of Paracalanidae. The holoplanktonic Oikopleura, an important producer of mucous houses, was very abundant on the reefs. The indicator species index revealed three groups: (1) indicative of coastal waters under the influence of the estuarine plume [Euterpina acutifrons, Parvocalanus crassirostris, Oikopleura (Vexillaria) dioica and Hydromedusae]; (2) characterized coastal and oceanic conditions (Clausocalanus); (3) characterized the reef system (O. plumifera). Two major copepods functional groups were identified and sorted according to their trophic strategy and coastal-oceanic distribution. The species that dominated the coastal area and the area over the rhodolith beds are indicators of the estuarine plume and are mixed with species of the North Brazil Current. These species practically disappear offshore, where occur oceanic species commonly found in other oligotrophic tropical areas. This ecosystem shows a mixture of estuarine, coastal and oceanic communities coexisting in the waters over the Amazon reefs, with no significant differences among these areas. However, the MDS clearly separated the communities along the salinity gradient in the plume.
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Affiliation(s)
| | - Pedro A. M. C. Melo
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, Brazil
| | - Ralf Schwamborn
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, Brazil
| | - Xiomara F. G. Diaz
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, Brazil
| | | | - Andrea P. Silva
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, Brazil
| | - Renata P. S. Campelo
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, Brazil
| | - Mauro de Melo Júnior
- Departamento de Biologia, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | - Nuno F. A. C. Melo
- Instituto Sócioambiental e Recursos Hídricos, Universidade Federal Rural da Amazônia, Belem, Brazil
| | | | - Moacyr Araújo
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, Brazil
- Rede Brasileira de Pesquisas sobre Mudanças Climáticas Globais – Rede CLIMA, São José dos Campos, Brazil
| | - Dóris R. A. Veleda
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, Brazil
- Rede Brasileira de Pesquisas sobre Mudanças Climáticas Globais – Rede CLIMA, São José dos Campos, Brazil
| | - Rodrigo L. Moura
- Universidade Federal do Rio de Janeiro – Instituto de Biologia e SAGE/COPPE, Rio de Janeiro, Brazil
| | - Fabiano Thompson
- Universidade Federal do Rio de Janeiro – Instituto de Biologia e SAGE/COPPE, Rio de Janeiro, Brazil
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Braga HDO, Pardal MÂ, Azeiteiro UM. Sharing fishers´ ethnoecological knowledge of the European pilchard (Sardina pilchardus) in the westernmost fishing community in Europe. JOURNAL OF ETHNOBIOLOGY AND ETHNOMEDICINE 2017; 13:52. [PMID: 28911322 PMCID: PMC5599890 DOI: 10.1186/s13002-017-0181-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 09/03/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND With the present difficulties in the conservation of sardines in the North Atlantic, it is important to investigate the local ecological knowledge (LEK) of fishermen about the biology and ecology of these fish. The ethnoecological data of European pilchard provided by local fishermen can be of importance for the management and conservation of this fishery resource. Thus, the present study recorded the ethnoecological knowledge of S. pilchardus in the traditional fishing community of Peniche, Portugal. METHODS This study was based on 87 semi-structured interviews conducted randomly from June to September 2016 in Peniche. The interview script contained two main points: Profile of fishermen and LEK on European pilchard. The ethnoecological data of sardines were compared with the scientific literature following an emic-etic approach. Data collected also were also analysed following the union model of the different individual competences and carefully explored to guarantee the objectivity of the study. RESULTS The profile of the fishermen was investigated and measured. Respondents provided detailed informal data on the taxonomy, habitat, behaviour, migration, development, spawning and fat accumulation season of sardines that showed agreements with the biological data already published on the species. The main uses of sardines by fishermen, as well as beliefs and food taboos have also been mentioned by the local community. CONCLUSIONS The generated ethnoecological data can be used to improve the management of this fishery resource through an adaptive framework among the actors involved, in addition to providing data that can be tested in further ecological studies. Therefore, this local knowledge may have the capacity to contribute to more effective conservation actions for sardines in Portugal.
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Affiliation(s)
- Heitor de Oliveira Braga
- Centre for Functional Ecology - CFE, Department of Life Sciences, University of Coimbra, Calçada Martins de Freitas, 3000-456 Coimbra, Portugal
- CAPES Foundation, Ministry of Education of Brazil, Caixa Postal 250, Brasilia, DF 70040-020 Brazil
| | - Miguel Ângelo Pardal
- Centre for Functional Ecology - CFE, Department of Life Sciences, University of Coimbra, Calçada Martins de Freitas, 3000-456 Coimbra, Portugal
| | - Ulisses Miranda Azeiteiro
- Department of Biology & CESAM - Centre for Environmental and Marine Studies, University of Aveiro, 3810-19 Aveiro, Portugal
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Egan JP, Chew US, Kuo CH, Villarroel-Diaz V, Hundt PJ, Iwinski NG, Hammer MP, Simons AM. Diets and trophic guilds of small fishes from coastal marine habitats in western Taiwan. JOURNAL OF FISH BIOLOGY 2017; 91:331-345. [PMID: 28593647 DOI: 10.1111/jfb.13355] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 05/18/2017] [Indexed: 06/07/2023]
Abstract
The diets and trophic guilds of small fishes were examined along marine sandy beaches and in estuaries at depths <1·5 m in western Taiwan, Republic of China. Copepods were the most frequently identified item in fish guts, indicating they are key prey for the fish assemblages studied. Piscivore, crustacivore, detritivore, omnivore, zooplanktivore and terrestrial invertivore trophic guilds were identified. The zooplanktivore guild contained the most fish species. Maximum prey size consumption was positively correlated with standard length (LS ) in seven species and at the assemblage level and negatively correlated with LS in a single detritivorous species. The diet data and trophic guild scheme produced by this study contribute to an understanding of coastal marine food webs and can inform ecosystem-based fisheries management.
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Affiliation(s)
- J P Egan
- University of Minnesota Conservation Sciences Graduate Program, 135B Skok Hall, 2003 Upper Buford Circle, St Paul, MN, 55108, U.S.A
- James Ford Bell Museum of Natural History, 10 Church Street SE, Minneapolis, MN, 55455, U.S.A
| | - U-S Chew
- National Chiayi University Department of Aquatic Biosciences, No. 300, University Road, Chiayi City, Taiwan, Republic of China
| | - C-H Kuo
- National Chiayi University Department of Aquatic Biosciences, No. 300, University Road, Chiayi City, Taiwan, Republic of China
| | - V Villarroel-Diaz
- University of Minnesota College of Science and Engineering, 117 Pleasant St SE, Minneapolis, MN, 55455, U.S.A
| | - P J Hundt
- University of Minnesota Conservation Sciences Graduate Program, 135B Skok Hall, 2003 Upper Buford Circle, St Paul, MN, 55108, U.S.A
- James Ford Bell Museum of Natural History, 10 Church Street SE, Minneapolis, MN, 55455, U.S.A
| | - N G Iwinski
- University of Minnesota College of Biological Sciences, St. Paul, MN, 55108, U.S.A
| | - M P Hammer
- Museum and Art Gallery of the Northern Territory, GPO Box 4646, Darwin, NT, 0801, Australia
| | - A M Simons
- James Ford Bell Museum of Natural History, 10 Church Street SE, Minneapolis, MN, 55455, U.S.A
- University of Minnesota Department of Fisheries, Wildlife and Conservation Biology, 135B Skok Hall, 2003 Upper Buford Circle, St Paul, MN, 55108, U.S.A
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Collard F, Gilbert B, Eppe G, Roos L, Compère P, Das K, Parmentier E. Morphology of the filtration apparatus of three planktivorous fishes and relation with ingested anthropogenic particles. MARINE POLLUTION BULLETIN 2017; 116:182-191. [PMID: 28065554 DOI: 10.1016/j.marpolbul.2016.12.067] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 12/22/2016] [Accepted: 12/23/2016] [Indexed: 05/21/2023]
Abstract
Anthropogenic particles (APs), including microplastics, are ingested by a wide variety of marine organisms. Exposure of Clupeiformes (e.g. herrings, anchovies, sardines) is poorly studied despite their economic and ecological importance. This study aims to describe the morphology of the filtration apparatus of three wild-caught Clupeiformes (Sardina pilchardus, Clupea harengus and Engraulis encrasicolus) and to relate the results to ingested APs. Consequently, the species with the more efficient filtration apparatus will be more likely to ingest APs. We hypothesized that sardines were the most exposed species. The filtration area and particle retention threshold were determined in the three species, with sardines displaying the highest filtration area and the closest gill rakers. Sardines ingested more fibers and smaller fragments, confirming that it is the most efficient filtering species. These two results lead to the conclusion that, among the three studied, the sardine is the species most exposed to APs.
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Affiliation(s)
- France Collard
- Laboratory of Functional and Evolutionary Morphology, AFFISH-RC, University of Liege, B6c, Liège, Belgium; Laboratory of Oceanology - MARE Center, University of Liege, B6c, Liège, Belgium.
| | - Bernard Gilbert
- Inorganic Analytical Chemistry Laboratory, Department of Chemistry, University of Liege, B6c, Liège, Belgium
| | - Gauthier Eppe
- Inorganic Analytical Chemistry Laboratory, Department of Chemistry, University of Liege, B6c, Liège, Belgium
| | - Laetitia Roos
- Laboratory of Functional and Evolutionary Morphology, AFFISH-RC, University of Liege, B6c, Liège, Belgium
| | - Philippe Compère
- Laboratory of Functional and Evolutionary Morphology, AFFISH-RC, University of Liege, B6c, Liège, Belgium
| | - Krishna Das
- Laboratory of Oceanology - MARE Center, University of Liege, B6c, Liège, Belgium
| | - Eric Parmentier
- Laboratory of Functional and Evolutionary Morphology, AFFISH-RC, University of Liege, B6c, Liège, Belgium
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Albaina A, Aguirre M, Abad D, Santos M, Estonba A. 18S rRNA V9 metabarcoding for diet characterization: a critical evaluation with two sympatric zooplanktivorous fish species. Ecol Evol 2016; 6:1809-24. [PMID: 27087935 PMCID: PMC4801955 DOI: 10.1002/ece3.1986] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 12/23/2015] [Accepted: 01/03/2016] [Indexed: 01/26/2023] Open
Abstract
The potential of the 18S rRNA V9 metabarcoding approach for diet assessment was explored using MiSeq paired‐end (PE; 2 × 150 bp) technology. To critically evaluate the method′s performance with degraded/digested DNA, the diets of two zooplanktivorous fish species from the Bay of Biscay, European sardine (Sardina pilchardus) and European sprat (Sprattus sprattus), were analysed. The taxonomic resolution and quantitative potential of the 18S V9 metabarcoding was first assessed both in silico and with mock and field plankton samples. Our method was capable of discriminating species within the reference database in a reliable way providing there was at least one variable position in the 18S V9 region. Furthermore, it successfully discriminated diet between both fish species, including habitat and diel differences among sardines, overcoming some of the limitations of traditional visual‐based diet analysis methods. The high sensitivity and semi‐quantitative nature of the 18S V9 metabarcoding approach was supported by both visual microscopy and qPCR‐based results. This molecular approach provides an alternative cost and time effective tool for food‐web analysis.
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Affiliation(s)
- Aitor Albaina
- Laboratory of Genetics Department of Genetics, Physical Anthropology & Animal Physiology University of the Basque Country (UPV/EHU) Leioa 48940 Spain
| | - Mikel Aguirre
- Laboratory of Genetics Department of Genetics, Physical Anthropology & Animal Physiology University of the Basque Country (UPV/EHU) Leioa 48940 Spain
| | - David Abad
- Laboratory of Genetics Department of Genetics, Physical Anthropology & Animal Physiology University of the Basque Country (UPV/EHU) Leioa 48940 Spain
| | - María Santos
- Marine Research Division AZTI Tecnalia Herrera Kaia Portualdea z/g P.O. Box 20110 Pasaia Gipuzkoa Spain
| | - Andone Estonba
- Laboratory of Genetics Department of Genetics, Physical Anthropology & Animal Physiology University of the Basque Country (UPV/EHU) Leioa 48940 Spain
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Benedetti F, Gasparini S, Ayata SD. Identifying copepod functional groups from species functional traits. JOURNAL OF PLANKTON RESEARCH 2016; 38:159-166. [PMID: 26811565 PMCID: PMC4722884 DOI: 10.1093/plankt/fbv096] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 10/13/2015] [Indexed: 05/19/2023]
Abstract
We gathered information on the functional traits of the most representative copepod species in the Mediterranean Sea. Our database includes 191 species described by 7 traits encompassing diverse ecological functions: minimal and maximal body length, trophic group, feeding type, spawning strategy, diel vertical migration and vertical habitat. Cluster analysis in the functional trait space revealed that Mediterranean copepods can be separated into groups with distinct ecological roles.
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