1
|
Morris C, Martins C, Zulian S, Smith DS, Brauner CJ, Wood CM. The effects of dissolved organic carbon and model compounds (DOC analogues) on diffusive water flux, oxygen consumption, nitrogenous waste excretion rates and gill transepithelial potential in Pacific sanddab (Citharichthys sordidus) at two salinities. J Comp Physiol B 2024:10.1007/s00360-024-01580-2. [PMID: 39245661 DOI: 10.1007/s00360-024-01580-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Accepted: 08/16/2024] [Indexed: 09/10/2024]
Abstract
Many flatfish species are partially euryhaline, such as the Pacific sanddab which spawn and feed in highly dynamic estuaries ranging from seawater to near freshwater. With the rapid increase in saltwater invasion of freshwater habitats, it is very likely that in these estuaries, flatfish will be exposed to increasing levels of dissolved organic carbon (DOC) of freshwater origin at a range of salinities. As salinity fluctuations often coincide with changes in DOC concentration, two natural freshwater DOCs [Luther Marsh (LM, allochthonous) and Lake Ontario (LO, autochthonous) were investigated at salinities of 30 and 7.5 ppt. Optical characterization of the two natural DOC sources indicate salinity-dependent differences in their physicochemistry. LO and LM DOCs, as well as three model compounds [tannic acid (TA), sodium dodecyl sulfate (SDS) and bovine serum albumin (BSA)] representing key chemical moieties of DOC, were used to evaluate physiological effects on sanddabs. In the absence of added DOC, an acute decrease in salinity resulted in an increase in diffusive water flux (a proxy for transcellular water permeability), ammonia excretion and a change in TEP from positive (inside) to negative (inside). The effects of DOC (10 mg C L-1) were salinity and source-dependent, with generally more pronounced effects at 30 than 7.5 ppt, and greater potency of LM relative to LO. Both LM DOC and SDS increased diffusive water flux at 30 ppt but only SDS had an effect at 7.5 ppt. TA decreased ammonia excretion at 7.5 ppt. LO DOC decreased urea-N excretion at both salinities whereas the stimulatory effect of BSA occurred only at 30 ppt. Likewise, the effects of LM DOC and BSA to reduce TEP were present at 30 ppt but not 7.5 ppt. None of the treatments affected oxygen consumption rates. Our results demonstrate that DOCs and salinity interact to alter key physiological processes in marine flatfish, reflecting changes in both gill function and the physicochemistry of DOCs between 30 and 7.5 ppt.
Collapse
Affiliation(s)
- Carolyn Morris
- Bamfield Marine Sciences Centre, 100 Pachena Road, Bamfield, BC, V0R 1B0, Canada.
- Department of Zoology, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada.
| | - Camila Martins
- Institute of Biological Sciences, Federal University of Rio Grande - FURG, Italia avenue, s/n, Carreiros, Rio Grande, 96203-900, RS, Brazil
| | - Samantha Zulian
- Department of Chemistry and Biochemistry, Wilfrid Laurier University, 75 University Ave. W., Waterloo, ON, N2L 3C5, Canada
| | - D Scott Smith
- Department of Chemistry and Biochemistry, Wilfrid Laurier University, 75 University Ave. W., Waterloo, ON, N2L 3C5, Canada
| | - Colin J Brauner
- Department of Zoology, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - Chris M Wood
- Bamfield Marine Sciences Centre, 100 Pachena Road, Bamfield, BC, V0R 1B0, Canada
- Department of Zoology, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
- Department of Biology, McMaster University, 1280 Main St. West, Hamilton, ON, L8S 4K1, Canada
| |
Collapse
|
2
|
Ten Brink H, van Leeuwen A. Impacts of estuarine habitat degradation on the modeled life history of marine estuarine-dependent and resident fish species. JOURNAL OF FISH BIOLOGY 2024; 105:577-602. [PMID: 39048523 DOI: 10.1111/jfb.15877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 06/28/2024] [Accepted: 07/01/2024] [Indexed: 07/27/2024]
Abstract
Shallow coastal and estuarine habitats play an essential role in the life cycles of many fish species, providing spawning, nursery, feeding, and migration areas. However, these ecologically valuable habitats are increasingly threatened by anthropogenic activities, causing substantial changes in both habitat availability and quality. Fish species use these shallow coastal habitats and estuaries during various life stages, leading to their categorization into guilds based on how and when they rely on these areas. This differential functional use of estuaries means that changes to these habitats may affect each guild differently. To understand the impact of estuarine habitat degradation on fish populations, it is therefore necessary to consider the full life cycle of fish and when they rely on these coastal habitats. Here, we use conceptual size-structured population models to study how estuarine habitat degradation affects two functionally different guilds. We use these models to predict how reduced food productivity in the estuary affects the demographic rates and population dynamics of these groups. Specifically, we model estuarine residents, which complete their entire life cycle in estuaries, and marine estuarine-dependent species, which inhabit estuaries during early life before transitioning offshore. We find that total fish biomass for both guilds decreases with decreasing food productivity. However, the density of juveniles of the marine estuarine-dependent guild can, under certain conditions, increase in the estuary. This occurs due to a shift in the population biomass distribution over different life stages and a simultaneous shift in which life stage is most limited by food. At the individual level, somatic growth of juveniles belonging to the estuarine-dependent guild decreased with lower food supply in the estuary, due to increased competition for food. The somatic growth rates of fish belonging to the resident guild were largely unaffected by low food supply, as the total fish density decreased at the same time and therefore the per-capita food availability was similar. These outcomes challenge the assumption that responses to habitat degradation are similar between fish guilds. Our study highlights the need to assess not only fish biomass but also size distributions, survival, and somatic growth rates for a comprehensive understanding of the effects of habitat degradation on fish populations. This understanding is crucial not only for estuary fish communities but also for successful conservation and management of commercially harvested offshore population components.
Collapse
Affiliation(s)
- Hanna Ten Brink
- Department of Coastal Systems (COS), Royal Netherlands Institute for Sea Research (NIOZ), Den Burg, The Netherlands
| | - Anieke van Leeuwen
- Department of Coastal Systems (COS), Royal Netherlands Institute for Sea Research (NIOZ), Den Burg, The Netherlands
| |
Collapse
|
3
|
Bhandare CK, Suzuki KW, Masuda R, Yamashita Y. Post-settlement dynamics of Japanese flounder Paralichthys olivaceus in Tango Bay: Seasonal patterns in growth, mortality, and recruitment potential. JOURNAL OF FISH BIOLOGY 2024; 104:1775-1790. [PMID: 38459743 DOI: 10.1111/jfb.15711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/16/2024] [Accepted: 02/16/2024] [Indexed: 03/10/2024]
Abstract
Japanese flounder Paralichthys olivaceus is one of the most valuable coastal flatfish species in East Asia. To investigate post-settlement growth and mortality, juveniles were sampled in Tango Bay (Japan) weekly throughout the settlement period in 2007 and 2008. Otolith (lapillus) microstructure analysis enabled the categorization of juveniles into six biweekly cohorts each year. Later cohorts exhibited higher growth rates possibly because of higher water temperatures. A key observation was the direct relationship between high mortality and high density in mid-season cohorts in both years, pointing to density-dependent mortality. This increased mortality may be attributed to predation, including cannibalism by earlier cohorts. Furthermore, growth-selective mortality was evident soon after settlement, underscoring the vulnerability of slow growers to predation during the early juvenile stage. Although earlier and later cohorts were less abundant but showed promising recruitment potential, the prospective contribution of mid-season cohorts to the adult population remained uncertain. The results clearly highlight the importance of density-dependent mortality in population regulation in post-settlement Japanese flounder.
Collapse
Affiliation(s)
- Chaitanya K Bhandare
- Maizuru Fisheries Research Station, Field Science Education and Research Center, Kyoto University, Kyoto, Japan
| | - Keita W Suzuki
- Maizuru Fisheries Research Station, Field Science Education and Research Center, Kyoto University, Kyoto, Japan
| | - Reiji Masuda
- Maizuru Fisheries Research Station, Field Science Education and Research Center, Kyoto University, Kyoto, Japan
| | - Yoh Yamashita
- Field Science Education and Research Center, Kyoto University, Kyoto, Japan
| |
Collapse
|
4
|
Mounier F, Pecquerie L, Lobry J, Sardi AE, Labadie P, Budzinski H, Loizeau V. Dietary bioaccumulation of persistent organic pollutants in the common sole Solea solea in the context of global change. Part 1: Revisiting parameterisation and calibration of a DEB model to consider inter-individual variability in experimental and natural conditions. Ecol Modell 2020. [DOI: 10.1016/j.ecolmodel.2020.109224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
5
|
Jones AG, Quillien N, Fabvre A, Grall J, Schaal G, Le Bris H. Green macroalgae blooms (Ulva spp.) influence trophic ecology of juvenile flatfish differently in sandy beach nurseries. MARINE ENVIRONMENTAL RESEARCH 2020; 154:104843. [PMID: 32056701 DOI: 10.1016/j.marenvres.2019.104843] [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: 06/20/2019] [Revised: 11/04/2019] [Accepted: 11/20/2019] [Indexed: 06/10/2023]
Abstract
Opportunistic green macroalgae blooms increasingly affect coastal areas worldwide. Understanding their impacts on organisms that use this zone, such as juvenile flatfish, is critical. By combining stable isotope data, digestive tract contents and community analyses of flatfish and their potential prey (benthic macroinvertebrates) from two North-East Atlantic sandy beaches (one impacted by blooms and one not), we detected similar and species-specific trophic changes among three co-occurring species (sand sole, plaice and turbot). Across flatfish species, juveniles displayed more opportunistic foraging behavior at the impacted site. Differently, plaice and sand sole relied more on the additional basal resource (Ulva spp.) than turbot. Finally, sand sole and turbot presented a stronger diet shift at the impacted site than plaice. We hypothesize that the species-specific response to the blooms are mostly driven by how the flatfish detect their prey (using visual and/or chemical cues) and when they forage (diurnal or nocturnal foraging).
Collapse
Affiliation(s)
- Auriane G Jones
- ESE, Ecology and Ecosystems Health, Agrocampus Ouest, INRAE, 35042 Rennes, France; Observatoire des Sciences de la mer et de l'univers, UMS 3113, Institut Universitaire Européen de la Mer, 29280 Plouzané, France.
| | - Nolwenn Quillien
- Univ Brest, CNRS, IRD, Ifremer, LEMAR, 29280 Plouzané, France; France Energies Marines, Technopôle Brest Iroise, 29280 Plouzané, France
| | - Axel Fabvre
- ESE, Ecology and Ecosystems Health, Agrocampus Ouest, INRAE, 35042 Rennes, France; Observatoire des Sciences de la mer et de l'univers, UMS 3113, Institut Universitaire Européen de la Mer, 29280 Plouzané, France; Univ Brest, CNRS, IRD, Ifremer, LEMAR, 29280 Plouzané, France
| | - Jacques Grall
- Observatoire des Sciences de la mer et de l'univers, UMS 3113, Institut Universitaire Européen de la Mer, 29280 Plouzané, France; Univ Brest, CNRS, IRD, Ifremer, LEMAR, 29280 Plouzané, France
| | - Gauthier Schaal
- Univ Brest, CNRS, IRD, Ifremer, LEMAR, 29280 Plouzané, France
| | - Hervé Le Bris
- ESE, Ecology and Ecosystems Health, Agrocampus Ouest, INRAE, 35042 Rennes, France
| |
Collapse
|
6
|
Di Pane J, Joly L, Koubbi P, Giraldo C, Monchy S, Tavernier E, Marchal P, Loots C. Ontogenetic shift in the energy allocation strategy and physiological condition of larval plaice (Pleuronectes platessa). PLoS One 2019; 14:e0222261. [PMID: 31525738 PMCID: PMC6746568 DOI: 10.1371/journal.pone.0222261] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 08/25/2019] [Indexed: 11/29/2022] Open
Abstract
Condition indices aim to evaluate the physiological status of fish larvae by estimating both the level of starvation and potential of survival. Histological indices reveal direct effects of starvation whereas biochemical indices such as lipid classes or RNA:DNA ratios are used as proxies of condition, giving information on the amount of energy reserves and growth rate, respectively. We combined these three indices to evaluate ontogenetic variations of growth performance, lipid dynamics and nutritional condition of plaice larvae caught in the field during winter 2017 in the eastern English Channel and the Southern Bight of the North Sea. RNA:DNA ratios showed that larvae at the beginning of metamorphosis (stage 4) had a lower growth rate than younger individuals (stages 2 and 3). A significant increase in the proportion of triglycerides also occurred at stage 4, indicating energy storage. Histological indices indicated that most of the larvae were in good condition, even younger ones with low lipid reserves. There was, however, an increase in the proportion of healthy individuals over ontogeny, especially with respect to liver vacuoles which were larger and more numerous for stage 4 larvae. Combined together, these condition indices revealed the ontogenetic shift in the energy allocation strategy of plaice larvae. Young larvae (stages 2 and 3) primarily allocate energy towards somatic growth. The decrease in growth performance for stage 4 was not related to poor condition, but linked to a higher proportion of energy stored as lipids. Since the quantity of lipid reserves is particularly important for plaice larvae to withstand starvation during metamorphosis, this could be considered as a second critical period after the one of exogenous feeding for larval survival and recruitment success.
Collapse
Affiliation(s)
- Julien Di Pane
- IFREMER, Channel and North Sea Fisheries Research Unit, Boulogne-sur-Mer, France
| | - Léa Joly
- IFREMER, Channel and North Sea Fisheries Research Unit, Boulogne-sur-Mer, France
| | - Philippe Koubbi
- UFR 918 « Terre, Environnement, Biodiversité », Sorbonne Université, Paris, France
| | - Carolina Giraldo
- IFREMER, Channel and North Sea Fisheries Research Unit, Boulogne-sur-Mer, France
| | | | - Eric Tavernier
- LOG—Laboratoire d’Océanologie et Géosciences, Wimereux, France
| | - Paul Marchal
- IFREMER, Channel and North Sea Fisheries Research Unit, Boulogne-sur-Mer, France
| | - Christophe Loots
- IFREMER, Channel and North Sea Fisheries Research Unit, Boulogne-sur-Mer, France
- * E-mail:
| |
Collapse
|
7
|
Schweitzer CC, Stevens BG. The relationship between fish abundance and benthic community structure on artificial reefs in the Mid-Atlantic Bight, and the importance of sea whip corals Leptogorgia virgulata. PeerJ 2019; 7:e7277. [PMID: 31341738 PMCID: PMC6640625 DOI: 10.7717/peerj.7277] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 06/11/2019] [Indexed: 11/23/2022] Open
Abstract
Autogenic engineers (i.e., biogenic structure) add to habitat complexity by altering the environment by their own physical structures. The presence of autogenic engineers is correlated with increases in species abundance and biodiversity. Biogenic structural communities off the coast of Delaware, Maryland, and Virginia (Delmarva) are comprised of multiple species including boring sponge Cliona celata, various hydroids (i.e., Tubularia sp., Obelia sp., Campanular sp.), northern stone coral Astrangia poculata, sea whips Leptogorgia virgulata, and blue mussels Mytilus edulis. Sea whips are soft corals that provide the majority of vertical height to benthic structure off the coast of the Delmarva peninsula. The mid-Atlantic bight is inhabited by several economically valuable fishes; however, data regarding habitat composition, habitat quality, and fish abundance are scarce. We collected quadrat and sea whip images from 12 artificial reef sites (i.e., shipwrecks) ranging from 10 to 24 m depth to determine proportional coverage of biogenic structures and to assess habitat health, respectively. Underwater video surveys were used to estimate fish abundances on the 12 study sites and determine if fish abundance was related to biogenic coverage and habitat health. Our results showed that higher fish abundance was significantly correlated with higher proportional sea whip coral coverage, but showed no significant relationship to other biogenic structure. Assessment of sea whip condition (as a damage index) showed that sea whip corals on artificial reefs off the Delmarva coast exhibited minor signs of degradation that did not differ significantly among study sites.
Collapse
Affiliation(s)
- Cara C Schweitzer
- Department of Natural Sciences, University of Maryland Eastern Shore, Princess Anne, MD, United States of America
| | - Bradley G Stevens
- Department of Natural Sciences, University of Maryland Eastern Shore, Princess Anne, MD, United States of America
| |
Collapse
|
8
|
Keller DA, Gittman RK, Brodeur MC, Kenworthy MD, Ridge JT, Yeager LA, Rodriguez AB, Fodrie FJ. Salt marsh shoreline geomorphology influences the success of restored oyster reefs and use by associated fauna. Restor Ecol 2019. [DOI: 10.1111/rec.12992] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Danielle A. Keller
- Institute of Marine Sciences University of North Carolina at Chapel Hill, 3431 Arendell Street, Morehead City, NC 28557 U.S.A
| | - Rachel K. Gittman
- Institute of Marine Sciences University of North Carolina at Chapel Hill, 3431 Arendell Street, Morehead City, NC 28557 U.S.A
- Present address: Department of Biology and Coastal Studies Institute East Carolina University Greenville NC 27858 U.S.A
| | - Michelle C. Brodeur
- Institute of Marine Sciences University of North Carolina at Chapel Hill, 3431 Arendell Street, Morehead City, NC 28557 U.S.A
- Present address: North Carolina National Estuarine Research Reserve, 101 Pivers Island Road, Beaufort, NC 28516 U.S.A
| | - Matthew D. Kenworthy
- Institute of Marine Sciences University of North Carolina at Chapel Hill, 3431 Arendell Street, Morehead City, NC 28557 U.S.A
| | - Justin T. Ridge
- Institute of Marine Sciences University of North Carolina at Chapel Hill, 3431 Arendell Street, Morehead City, NC 28557 U.S.A
- Present address: Division of Marine Science and Conservation Nicholas School of the Environment, Duke University Beaufort NC 28516 U.S.A
| | - Lauren A. Yeager
- University of Texas at Austin, Marine Science Institute, 750 Channel View Drive, Port Aransas, TX 78373 U.S.A
| | - Antonio B. Rodriguez
- Institute of Marine Sciences University of North Carolina at Chapel Hill, 3431 Arendell Street, Morehead City, NC 28557 U.S.A
| | - F. Joel Fodrie
- Institute of Marine Sciences University of North Carolina at Chapel Hill, 3431 Arendell Street, Morehead City, NC 28557 U.S.A
| |
Collapse
|
9
|
Siliprandi CC, Tuset VM, Lombarte A, Farré M, Rossi-Wongtschowski CLDB. Optimal fishing samplers to reveal the morphological structure of a fish assemblage in a subtropical tidal flat. NEOTROPICAL ICHTHYOLOGY 2019. [DOI: 10.1590/1982-0224-20170168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
ABSTRACT Morphological characters of species are essential for assessing the functional structure of a fish assemblage, since differences between them, for example in body shape, are related to many functional and ecological traits (e.g., swimming, search for food, striking and capturing prey, evading predators, spawning). Globally, tidal flats are relevant to fish assemblages by offering feeding, refuge, and reproduction grounds. To analyze the morphofunctional structure of the fish assemblage from a tidal flat on the Brazilian coast, we conducted standardized sampling using nine different fishing gears. The geometric morphometric method was applied to describe the fish shapes and verify the morphological structure of the assemblage. Here, we present the influence/susceptibility of each gear type on the morphological diversity of the fish assemblage. The results indicated that beach seine, otter trawl, marginal encircling gillnet, and fish traps, together, were the most effective gears to represent the maximum morphological variability of fish inhabiting that tidal flat. Moreover, the assemblage showed high morphological redundancy considered as a resistance of the ecosystem for avoiding functional diversity loss, emphasizing the importance of complementary gear use when determining fish assemblages in a conservation context.
Collapse
Affiliation(s)
| | | | | | - Marc Farré
- Consejo Superior de Investigación Científica, Spain
| | | |
Collapse
|
10
|
Ecological Flow Assessment to Improve the Spawning Habitat for the Four Major Species of Carp of the Yangtze River: A Study on Habitat Suitability Based on Ultrasonic Telemetry. WATER 2018. [DOI: 10.3390/w10050600] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
11
|
Bouchoucha M, Brach-Papa C, Gonzalez JL, Lenfant P, Darnaude AM. Growth, condition and metal concentration in juveniles of two Diplodus species in ports. MARINE POLLUTION BULLETIN 2018; 126:31-42. [PMID: 29421103 DOI: 10.1016/j.marpolbul.2017.10.086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 10/02/2017] [Accepted: 10/30/2017] [Indexed: 06/08/2023]
Abstract
High abundances of juvenile fish in certain ports suggest they might provide alternative nursery habitats for several species. To further investigate this possibility, post-settlement growth, metal uptake and body condition were estimated in 127 juveniles of two seabream species, collected in 2014-15, inside and outside the highly polluted ports of the Bay of Toulon. This showed that differences in local pollution levels (here in Hg, Cu, Pb and Zn) are not consistently mirrored within fish flesh. Muscle metal concentrations, below sanitary thresholds for both species, were higher in ports for Cu, Pb and V only. Otherwise, fish muscle composition principally differed by species or by year. Juvenile growth and condition were equivalent at all sites. Higher prey abundance in certain ports might therefore compensate the deleterious effects of pollution, resulting in similar sizes and body conditions for departing juvenile fish than in nearby natural habitats.
Collapse
Affiliation(s)
- M Bouchoucha
- Lab. Environnement Ressources Provence Azur Corse, Centre Ifremer de Méditerranée ZP de Brégaillon, CS 20330, 83507 La Seyne-sur-Mer, France; Univ. Perpignan Via Domitia, Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, 58 Avenue Paul Alduy, F-66860 Perpignan, France; CNRS, Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, 58 Avenue Paul Alduy, F-66860 Perpignan, France; UMR MARBEC 9190 CNRS-UM-IRD-Ifremer, CC093, Université de Montpellier, Place Eugène Bataillon, 34095 Montpellier, France.
| | - C Brach-Papa
- Lab. Environnement Ressources Provence Azur Corse, Centre Ifremer de Méditerranée ZP de Brégaillon, CS 20330, 83507 La Seyne-sur-Mer, France
| | - J-L Gonzalez
- Lab. Biogéochimie des Contaminants Métalliques, Centre Ifremer de Méditerranée ZP de Brégaillon, CS 20330, 83507 La Seyne-sur-Mer, France
| | - P Lenfant
- Univ. Perpignan Via Domitia, Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, 58 Avenue Paul Alduy, F-66860 Perpignan, France; CNRS, Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, 58 Avenue Paul Alduy, F-66860 Perpignan, France
| | - A M Darnaude
- UMR MARBEC 9190 CNRS-UM-IRD-Ifremer, CC093, Université de Montpellier, Place Eugène Bataillon, 34095 Montpellier, France
| |
Collapse
|
12
|
Chevillot X, Drouineau H, Lambert P, Carassou L, Sautour B, Lobry J. Toward a phenological mismatch in estuarine pelagic food web? PLoS One 2017; 12:e0173752. [PMID: 28355281 PMCID: PMC5371289 DOI: 10.1371/journal.pone.0173752] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 02/27/2017] [Indexed: 11/18/2022] Open
Abstract
Alterations of species phenology in response to climate change are now unquestionable. Until now, most studies have reported precocious occurrence of life cycle events as a major phenological response. Desynchronizations of biotic interactions, in particular predator-prey relationships, are however assumed to strongly impact ecosystems' functioning, as formalized by the Match-Mismatch Hypothesis (MMH). Temporal synchronicity between juvenile fish and zooplankton in estuaries is therefore of essential interest since estuaries are major nursery grounds for many commercial fish species. The Gironde estuary (SW France) has suffered significant alterations over the last three decades, including two Abrupt Ecosystem Shifts (AES), and three contrasted intershift periods. The main objective of this study was to depict modifications in fish and zooplankton phenology among inter-shift periods and discuss the potential effects of the resulting mismatches at a community scale. A flexible Bayesian method was used to estimate and compare yearly patterns of species abundance in the estuary among the three pre-defined periods. Results highlighted (1) an earlier peak of zooplankton production and entrance of fish species in the estuary and (2) a decrease in residence time of both groups in the estuary. Such species-specific phenological changes led to changes in temporal overlap between juvenile fish and their zooplanktonic prey. This situation questions the efficiency and potentially the viability of nursery function of the Gironde estuary, with potential implications for coastal marine fisheries of the Bay of Biscay.
Collapse
Affiliation(s)
| | | | | | | | - Benoit Sautour
- Université de Bordeaux, UMR CNRS 5805 EPOC–OASU, Station Marine d'Arcachon, Arcachon, France
| | | |
Collapse
|
13
|
Ontogenetic loops in habitat use highlight the importance of littoral habitats for early life-stages of oceanic fishes in temperate waters. Sci Rep 2017; 7:42709. [PMID: 28205543 PMCID: PMC5311983 DOI: 10.1038/srep42709] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 01/12/2017] [Indexed: 11/12/2022] Open
Abstract
General concepts of larval fish ecology in temperate oceans predominantly associate dispersal and survival to exogenous mechanisms such as passive drift along ocean currents. However, for tropical reef fish larvae and species in inland freshwater systems behavioural aspects of habitat selection are evidently important components of dispersal. This study is focused on larval Atlantic herring (Clupea harengus) distribution in a Baltic Sea retention area, free of lunar tides and directed current regimes, considered as a natural mesocosm. A Lorenz curve originally applied in socio-economics to describe demographic income distribution was adapted to a 20 year time-series of weekly larval herring distribution, revealing size-dependent spatial homogeneity. Additional quantitative sampling of distinct larval development stages across pelagic and littoral areas uncovered a loop in habitat use during larval ontogeny, revealing a key role of shallow littoral waters. With increasing rates of coastal change, our findings emphasize the importance of the littoral zone when considering reproduction of pelagic, ocean-going fish species; highlighting a need for more sensitive management of regional coastal zones.
Collapse
|
14
|
Influence of Green Tides in Coastal Nursery Grounds on the Habitat Selection and Individual Performance of Juvenile Fish. PLoS One 2017; 12:e0170110. [PMID: 28125605 PMCID: PMC5268461 DOI: 10.1371/journal.pone.0170110] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 12/29/2016] [Indexed: 11/19/2022] Open
Abstract
Coastal ecosystems, which provide numerous essential ecological functions for fish, are threatened by the proliferation of green macroalgae that significantly modify habitat conditions in intertidal areas. Understanding the influence of green tides on the nursery function of these ecosystems is essential to determine their potential effects on fish recruitment success. In this study, the influence of green tides on juvenile fish was examined in an intertidal sandy beach area, the Bay of Saint-Brieuc (Northwestern France), during two annual cycles of green tides with varying levels of intensity. The responses of three nursery-dependent fish species, the pelagic Sprattus sprattus (L.), the demersal Dicentrarchus labrax (L.) and the benthic Pleuronectes platessa L., were analysed to determine the effects of green tides according to species-specific habitat niche and behaviour. The responses to this perturbation were investigated based on habitat selection and a comparison of individual performance between a control and an impacted site. Several indices on different integrative scales were examined to evaluate these responses (antioxidant defence capacity, muscle total lipid, morphometric condition and growth). Based on these analyses, green tides affect juvenile fish differently according to macroalgal density and species-specific tolerance, which is linked to their capacity to move and to their distribution in the water column. A decreasing gradient of sensitivity was observed from benthic to demersal and pelagic fish species. At low densities of green macroalgae, the three species stayed at the impacted site and the growth of plaice was reduced. At medium macroalgal densities, plaice disappeared from the impacted site and the growth of sea bass and the muscle total lipid content of sprat were reduced. Finally, when high macroalgal densities were reached, none of the studied species were captured at the impacted site. Hence, sites affected by green tides are less favourable nursery grounds for all the studied species, with species-specific effects related to macroalgal density.
Collapse
|
15
|
Langhamer O, Holand H, Rosenqvist G. Effects of an Offshore Wind Farm (OWF) on the Common Shore Crab Carcinus maenas: Tagging Pilot Experiments in the Lillgrund Offshore Wind Farm (Sweden). PLoS One 2016; 11:e0165096. [PMID: 27780212 PMCID: PMC5079560 DOI: 10.1371/journal.pone.0165096] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 10/06/2016] [Indexed: 11/18/2022] Open
Abstract
Worldwide growth of offshore renewable energy production will provide marine organisms with new hard substrate for colonization in terms of artificial reefs. The artificial reef effect is important when planning offshore installations since it can create habitat enhancement. Wind power is the most advanced technology within offshore renewable energy sources and there is an urgent need to study its impacts on the marine environment. To test the hypothesis that offshore wind power increases the abundance of reef species relative to a reference area, we conduct an experiment on the model species common shore crab (Carcinus maenas).Overall, 3962 crabs were captured, observed, marked and released in 2011 and 1995 crabs in 2012. Additionally, carapace size, sex distribution, color morphs and body condition was recorded from captured crabs. We observed very low recapture rates at all sites during both years which made evaluating differences in population sizes very difficult. However, we were able to estimate population densities from the capture record for all three sites. There was no obvious artificial reef effect in the Lillgrund wind farm, but a spill-over effect to nearby habitats cannot be excluded. We could not find any effect of the wind farm on either, morphs, sex distribution or condition of the common shore crab. Our study found no evidence that Lillgrund wind farm has a negative effect on populations of the common shore crab. This study provides the first quantitative and experimental data on the common shore crab in relation to offshore wind farms.
Collapse
Affiliation(s)
- Olivia Langhamer
- Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway
- * E-mail:
| | - Håkon Holand
- Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway
| | - Gunilla Rosenqvist
- Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway
| |
Collapse
|
16
|
Taylor DL, McNamee J, Lake J, Gervasi CL, Palance DG. Juvenile winter flounder ( Pseudopleuronectes americanus) and summer flounder ( Paralichthys dentatus) utilization of Southern New England nurseries: Comparisons among estuarine, tidal river, and coastal lagoon shallow-water habitats. ESTUARIES AND COASTS : JOURNAL OF THE ESTUARINE RESEARCH FEDERATION 2016; 39:1505-1525. [PMID: 27746705 PMCID: PMC5061510 DOI: 10.1007/s12237-016-0089-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
This study evaluated the relative importance of the N arragansett Bay estuary (RI and MA, USA), and associated tidal rivers and coastal lagoons, as nurseries for juvenile winter flounder, Pseudopleuronectes americanus, and summer flounder, Paralichthys dentatus. Winter flounder (WF) and summer flounder (SF) abundance and growth were measured from May to October (2009-2013) and served as indicators for the use and quality of shallow-water habitats (water depth < 1.5-3.0 m). These bioindicators were then analyzed with respect to physiochemical conditions to determine the mechanisms underlying intra-specific habitat selection. WF and SF abundances were greatest in late May and June (maximum monthly mean = 4.9 and 0.55 flounder/m2 for WF and SF, respectively), and were significantly higher in the tidal rivers relative to the bay and lagoons. Habitat-related patterns in WF and SF abundance were primarily governed by their preferences for oligohaline (0.1-5 ppt) and mesohaline (6-18 ppt) waters, but also their respective avoidance of hypoxic conditions (< 4 mg DO/L) and warm water temperatures (> 25 °C). Flounder habitat usage was also positively related to sediment organic content, which may be due to these substrates having sufficiently high prey densities. WF growth rates (mean = 0.25 ± 0.14 mm/d) were negatively correlated with the abundance of conspecifics, whereas SF growth (mean = 1.39 ± 0.46 mm/d) was positively related to temperature and salinity. Also, contrary to expectations, flounder occupied habitats that offered no ostensible advantage in intra-specific growth rates. WF and SF exposed to low salinities in certain rivers likely experienced increased osmoregulatory costs, thereby reducing energy for somatic growth. Low-salinity habitats, however, may benefit flounder by providing refugia from predation or reduced competition with other estuarine fishes and macro-invertebrates. Examining WF and SF abundance and growth across each species' broader geographic distribution revealed that southern New England habitats may constitute functionally significant nurseries. These results also indicated that juvenile SF have a geographic range extending further north than previously recognized.
Collapse
Affiliation(s)
- David L. Taylor
- Roger Williams University, Department of Marine Biology, One Old Ferry Road, Bristol, RI 02809, USA
- corresponding author: Telephone: (401) 254-3759, Fax: (401) 254-3310,
| | - Jason McNamee
- Division of Fish and Wildlife, Marine Fisheries, Fort Wetherill Marine Laboratory, 3 Fort Wetherill Drive, Jamestown, RI 02835
| | - John Lake
- Division of Fish and Wildlife, Marine Fisheries, Fort Wetherill Marine Laboratory, 3 Fort Wetherill Drive, Jamestown, RI 02835
| | - Carissa L. Gervasi
- Roger Williams University, Department of Marine Biology, One Old Ferry Road, Bristol, RI 02809, USA
| | - Danial G. Palance
- Roger Williams University, Department of Marine Biology, One Old Ferry Road, Bristol, RI 02809, USA
| |
Collapse
|
17
|
Elliott SAM, Ahti PA, Heath MR, Turrell WR, Bailey DM. An assessment of juvenile Atlantic cod Gadus morhua distribution and growth using diver operated stereo-video surveys. JOURNAL OF FISH BIOLOGY 2016; 89:1190-1207. [PMID: 27221152 PMCID: PMC4999031 DOI: 10.1111/jfb.12998] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 04/07/2016] [Indexed: 06/05/2023]
Abstract
Stereo-video scuba transects were conducted during daylight hours from June to September 2013 within a proposed marine protected area (MPA) in the Firth of Clyde, west of Scotland. More juvenile Atlantic cod Gadus morhua of fork length (LF ) range 6-11 cm were observed in substrata containing mixed gravel, including maerl, than in boulder-cobble substrata with high algal cover, or sand with low density seagrass. Community composition was significantly different between substratum types. A decrease in G. morhua abundance was observed over the period of data collection. Over time, mean and variance in G. morhua LF increased, indicating multiple recruitment events. Protecting mixed gravel substrata could be a beneficial management measure to support the survival and recruitment of juvenile G. morhua; other substrata might be important at night given their diel migratory behaviour. Stereo-video cameras provide a useful non-destructive fisheries-independent method to monitor species abundance and length measurements.
Collapse
Affiliation(s)
- S A M Elliott
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, G12 8QQ, U.K
| | - P A Ahti
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, G12 8QQ, U.K
| | - M R Heath
- Department of Mathematics and Statistics, University of Strathclyde, 16 Richmond Street, Glasgow, G1 1XQ, U.K
| | - W R Turrell
- Marine Scotland Science, Marine Laboratory, P. O. Box 101, 375 Victoria Road, Aberdeen, AB11 9DB, U.K
| | - D M Bailey
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, G12 8QQ, U.K
| |
Collapse
|
18
|
Aschenbrenner A, Ferreira BP, Rooker JR. Spatial and temporal variability in the otolith chemistry of the Brazilian snapper Lutjanus alexandrei from estuarine and coastal environments. JOURNAL OF FISH BIOLOGY 2016; 89:753-769. [PMID: 27255666 DOI: 10.1111/jfb.13003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 03/30/2016] [Indexed: 06/05/2023]
Abstract
Otolith chemistry of juvenile and adult individuals of the Brazilian snapper Lutjanus alexandrei was measured to assess the utility of natural markers for investigating individual movements. Individuals were collected over a 3-year period (2010-2012) along the north-eastern coast of Brazil from both estuarine (juvenile to sub-adult stages) and coastal (sub-adult to adult stages) areas. Six elements ((7) Li, (24) Mg, (55) Mn, (59) Co, (88) Sr and (137) Ba) were measured in sectioned otoliths of L. alexandrei using laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS). Edge composition analysis indicated that element:Ca ratios in the otoliths of juvenile and sub-adult L. alexandrei from estuaries were not significantly different among the three consecutive years (2010, 2011 and 2012), suggesting that physicochemical conditions within the nursery area investigated were temporally stable. Similarly, apart from two elements (Ba and Co), element:Ca ratios for larger L. alexandrei inhabiting coastal waters were also similar. In contrast, otolith chemistry of similar sized L. alexandrei from estuarine and coastal areas was significantly different (based on recently accreted material). Otolith Mn:Ca and Ba:Ca were both significantly higher for L. alexandrei collected in estuaries compared to fish from adjacent coastal reefs, while the opposite trend was observed for Sr:Ca. Given the pronounced differences in otolith chemistry between estuarine and coastal areas, element:Ca transects were constructed from the core to margin of the otoliths for adults (age 7+ years) collected on reefs to determine the timing of movement (ontogenetic migration) from estuarine to coastal areas. Based on observed patterns of decline for both Mn:Ca and Ba:Ca, it appears that L. alexandrei begin the move to more coastal habitats (i.e. lower element:Ca ratios) after age 2 years. The patterns observed for this species highlight the importance of conserving connectivity between coastal habitats to maintain sustainable fish stocks exploited by artisanal fisheries.
Collapse
Affiliation(s)
- A Aschenbrenner
- Universidade Federal de Pernambuco, Departamento de Oceanografia, Recife, 50740-550, Brazil
| | - B P Ferreira
- Universidade Federal de Pernambuco, Departamento de Oceanografia, Recife, 50740-550, Brazil
| | - J R Rooker
- Department of Marine Biology, Texas A&M University, Texas Clipper Road, Galveston, TX, 77554, U.S.A
| |
Collapse
|
19
|
Goto D, Hamel MJ, Hammen JJ, Rugg ML, Pegg MA, Forbes VE. Spatiotemporal variation in flow-dependent recruitment of long-lived riverine fish: Model development and evaluation. Ecol Modell 2015. [DOI: 10.1016/j.ecolmodel.2014.10.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
20
|
Kerambrun E, Henry F, Rabhi K, Amara R. Effects of chemical stress and food limitation on the energy reserves and growth of turbot, Scophthalmus maximus. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:13488-13495. [PMID: 25015714 DOI: 10.1007/s11356-014-3281-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Accepted: 07/03/2014] [Indexed: 06/03/2023]
Abstract
The objective of the present study is to examine the growth and energetic performance of juvenile turbot after exposure to contaminated sediment and during the subsequent recovery period with or without food limitation. We designed a two-step experiment by first exposing juvenile turbot to harbour sediment for 26 days and then transferring them to clean sea water with different frequencies of feeding for 35 days. Without food limitation, fish previously exposed to contaminated sediment compensated for weight, length and lipid reserve losses; we did not record any differences in size, Fulton's K condition index and triacylglycerol/sterol (TAG/ST) ratio after the 35-day depuration period compared to the reference fish. This result could be related to the compensatory growth mechanism observed in a wide range of fish species following a period of growth depression. With food limitation during the 35-day depuration period, recovery growth was not sufficient to restore length and weight values similar to the reference fish. Moreover, turbot previously exposed to contaminated sediment and subsequently fed twice or once a week exhibited extremely low TAG/ST ratios, but the reference fish submitted to the same restrictive feeding conditions did not. This study indicates that juvenile fish affected by chemical pollution can improve their biological performance if pollution events are followed by a period of abundant food. However, if pollution events occur during periods of food scarcity, e.g. in winter, storage of energy reserves will be compromised.
Collapse
|
21
|
Nunes M, Martinho F, Vernisseau A, Marchand P, Le Bizec B, van der Veer HW, Cabral HN, Ramos F, Pardal MA. Early contamination of European flounder (Platichthys flesus) by PCDD/Fs and dioxin-like PCBs in European waters. MARINE POLLUTION BULLETIN 2014; 85:292-296. [PMID: 24913072 DOI: 10.1016/j.marpolbul.2014.05.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 05/19/2014] [Accepted: 05/19/2014] [Indexed: 06/03/2023]
Abstract
Contamination levels and profiles of 7 polychlorinated-p-dioxins, 10 polychlorinated furans (PCDD/Fs) and 12 dioxin-like polychlorinated biphenyls (dl-PCBs) were investigated in juvenile European flounder (Platichthys flesus) captured in different nursery areas in the northeastern Atlantic coast across its geographical distribution range. The toxic equivalent concentrations (WHO-TEQfish) were also determined in order to evaluate which P. flesus population was more exposed to dioxin-like toxicity. Juveniles caught in the Sørfjord (Norway) showed the lowest WHO-TEQfish concentration (0.052 pg WHO-TEQfish g(-1)wet weight) whereas the highest value was observed in fish from the Wadden Sea (The Netherlands; 0.291 pg WHO-TEQfish g(-1)ww), mainly due to the greater contribution of 2,3,7,8-tetrachlorodibenzo-p-dioxin, the most toxic congener. Nonetheless, when comparing the results with existent tissue residue-based toxicity benchmarks, no adverse effects resulting from PCDD/Fs and dl-PCBs are expected to occur in flounder from the studied systems.
Collapse
Affiliation(s)
- Margarida Nunes
- CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Apartado 3046, 3001-401 Coimbra, Portugal; CEF - Center for Pharmaceutical Studies, Health Sciences Campus, Bromatology Laboratory, Pharmacy Faculty, University of Coimbra, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal.
| | - Filipe Martinho
- CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Apartado 3046, 3001-401 Coimbra, Portugal
| | - Anaïs Vernisseau
- LUNAM Université, Oniris, Laboratoire d'Étude des Résidus et Contaminants dans les Aliments (LABERCA), CS50707, F-44307 Nantes, France
| | - Philippe Marchand
- LUNAM Université, Oniris, Laboratoire d'Étude des Résidus et Contaminants dans les Aliments (LABERCA), CS50707, F-44307 Nantes, France
| | - Bruno Le Bizec
- LUNAM Université, Oniris, Laboratoire d'Étude des Résidus et Contaminants dans les Aliments (LABERCA), CS50707, F-44307 Nantes, France
| | - Henk W van der Veer
- NIOZ - Royal Netherlands Institute for Sea Research, PO Box 59, 1790 AB Den Burg Texel, The Netherlands
| | - Henrique N Cabral
- Centro de Oceanografia, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Fernando Ramos
- CEF - Center for Pharmaceutical Studies, Health Sciences Campus, Bromatology Laboratory, Pharmacy Faculty, University of Coimbra, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Miguel A Pardal
- CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Apartado 3046, 3001-401 Coimbra, Portugal
| |
Collapse
|
22
|
Türkmen M, Türkmen A, Tepe Y. Comparison of metal levels in different tissues of seven ray species from Antalya Bay, Mediterranean Sea. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2014; 93:159-164. [PMID: 24791964 DOI: 10.1007/s00128-014-1285-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 04/25/2014] [Indexed: 06/03/2023]
Abstract
The aim of this study was to investigate the metal concentrations in muscle, liver, gill and intestine of seven ray species from Antalya Bay. Because the study is the first for rays in Antalya Bay, this study provides valuable preliminary information about metal contents in different tissues of the examined ray species from the bay and indirectly indicates the environmental contamination of the Antalya Bay.
Collapse
Affiliation(s)
- Mustafa Türkmen
- Department of Biology, Faculty of Science and Arts, Giresun University, 28049, Giresun, Turkey,
| | | | | |
Collapse
|
23
|
Lusk SC, Watkins BE, Rhea A, Dillman CB. Occurrence of Juvenile Paralichthys lethostigma (Southern Flounder) in Tributaries of Chesapeake Bay. SOUTHEAST NAT 2014. [DOI: 10.1656/058.013.0311] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Sean C. Lusk
- Department of Fisheries and Wildlife Conservation, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
| | - Brian E. Watkins
- Department of Fisheries Science, Virginia Institute of Marine Science, Gloucester Point, VA 23062
| | - Ashleigh Rhea
- Department of Fisheries Science, Virginia Institute of Marine Science, Gloucester Point, VA 23062
| | - Casey B. Dillman
- Department of Fisheries Science, Virginia Institute of Marine Science, Gloucester Point, VA 23062
| |
Collapse
|
24
|
Haynes PS, Brophy D, McGrath D. The timing of early life events and growth rate estimates of age-0 year group brill Scophthalmus rhombus along the west coast of Ireland. JOURNAL OF FISH BIOLOGY 2014; 84:225-230. [PMID: 24383806 DOI: 10.1111/jfb.12234] [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: 11/13/2012] [Accepted: 08/14/2013] [Indexed: 06/03/2023]
Abstract
The timing of spawning and hatching, larval durations and growth exhibited by juvenile brill Scophthalmus rhombus captured along the Irish west coast were estimated using otolith microstructure analysis. Scophthalmus rhombus were estimated to have hatched between February and May, with fish settling onto nursery grounds between March and June. Fish collected later on in the season exhibited higher otolith growth rates in comparison to earlier collected fish. This is the first study to describe the early life history of a commercially valuable but understudied flatfish species.
Collapse
Affiliation(s)
- P S Haynes
- Marine and Freshwater Research Centre, Department of Life Sciences, Galway-Mayo Institute of Technology, Dublin Road, Galway, Ireland
| | | | | |
Collapse
|
25
|
Kerambrun E, Amara R, Henry F. Effects of food limitation on 9 metal concentrations in liver and polycyclic aromatic hydrocarbon metabolites in bile of juvenile turbot (Scophthalmus maximus) previously exposed to contaminated sediments. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2013; 32:2552-2557. [PMID: 23893541 DOI: 10.1002/etc.2334] [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: 05/14/2013] [Revised: 06/18/2013] [Accepted: 07/18/2013] [Indexed: 06/02/2023]
Abstract
A 2-step experimental design was employed in the present study on juvenile turbot (Scophthalmus maximus): 1) juveniles were exposed for 26 d to 2 contaminated sediments and a reference one, and 2) they were transferred in clean seawater with clean sediment for 35 d, feeding fish once a day, twice a week, or once a week. Fish exposed to contaminated sediments presented a significant increase of hepatic Cd, Cu, and Pb concentrations compared with the reference condition after the 26-d exposure. Higher fluorescence signals of polycyclic aromatic hydrocarbon (PAH) metabolites were found in bile from turbot exposed to contaminated sediments for 26 d compared with reference. These signals returned to values similar to reference fish after depuration whatever the food quantity. The metal bioaccumulation of Cd, Cu, and Pb was no longer observed after 35-d depuration with once-a-day feeding but was still found with restricted feeding conditions. Results on reference fish also showed significantly higher concentrations of most metals analyzed in fish fed twice a week and once a week compared with fish fed once a day. These results could be related to a decrease of fish hepatosomatic index with food limitation and, thus, a dilution effect on metal concentrations. The present study clearly demonstrates that changes in feeding status have significant effects on metal concentrations in fish and no observed effect on PAH metabolites.
Collapse
Affiliation(s)
- Elodie Kerambrun
- Université Lille Nord de France, Lille, France; The Université du littoral Côte d'Opale - Laboratoire d'Océanologie et de Géosciences, Wimereux, France; Center National de la Recherche Scientifique, UMR 8187, Wimereux, France
| | | | | |
Collapse
|
26
|
Cannas M, Atzori F, Rupsard F, Bustamante P, Loizeau V, Lefrançois C. PCBs contamination does not alter aerobic metabolism and tolerance to hypoxia of juvenile sole (Solea solea L. 1758). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2013; 127:54-60. [PMID: 22682372 DOI: 10.1016/j.aquatox.2012.04.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Revised: 04/12/2012] [Accepted: 04/16/2012] [Indexed: 06/01/2023]
Abstract
Coastal habitats play a major role as nurseries for many fish species; however, they are also submitted to pollutants and oxygen fluctuations. Fry's concept of metabolic scope for activity was used to evaluate the effect of polychlorinated biphenyls (PCBs) on the aerobic metabolism in juvenile common sole (0-1 year old). Aerobic metabolic scope (AMS) in control and PCB-contaminated fish via food pathway was determined using respirometry techniques. Furthermore, the hypoxia tolerance in control and PCB-contaminated fish was evaluated by assessing their critical oxygen concentration (O(2crit)). Our results showed that while PCB-contaminated fish were able to maintain a constant AMS and O(2crit), PCBs tend to affect their aerobic metabolism by acting on maximal oxygen consumption (MO(2max)) in hypoxia and standard metabolic rate, but only at the highest PCB concentration between 30 and 60 days of exposure. In conclusion, we can hypothetise that the tested PCB-exposures may not impair the tolerance to hypoxia and the survival of common sole in their natural environment.
Collapse
Affiliation(s)
- M Cannas
- Littoral, Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, La Rochelle, France
| | | | | | | | | | | |
Collapse
|
27
|
Evrard E, Devaux A, Bony S, Cachot J, Charrier G, Quiniou L, Laroche J. Responses of juvenile European flounder (Platichthys flesus) to multistress in the Vilaine estuary, during a 6-month survey. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2013; 20:676-689. [PMID: 22945659 DOI: 10.1007/s11356-012-1138-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Accepted: 08/23/2012] [Indexed: 06/01/2023]
Abstract
Physiological and genetic responses of age 0+ Platichthys flesus were investigated in the eutrophicated and moderately contaminated Vilaine estuary, during a 6-month survey. The main objective of this study was to explore the biological responses of fishes during their juvenile period in an estuarine system in order to detect a possible selective pressure induced by the environmental stress. Our results showed a general convergence in physiological responses along the survey: an increase in genotoxicity was associated with an increase in mRNA expression of ATPase and betaine homocysteine methyltransferase. These results could suggest an increase of cellular damage, energetic request, and detoxification rate related to the growing exposure time to stress. Considering the aging of the cohort, the genetic characteristics of the Vilaine flounder cohort came closer to the one observed in a highly stressed system, the Seine estuary, suggesting a potential selective pressure mainly induced by the chemical stress.
Collapse
Affiliation(s)
- Estérine Evrard
- CEDRE, rue Alain Colas, CS 41836, 29218 Brest Cedex 2, France
| | | | | | | | | | | | | |
Collapse
|
28
|
Fish community ecology in rocky reef habitat of Ma’an Archipelago. I. Species composition and diversity. ACTA ACUST UNITED AC 2012. [DOI: 10.3724/sp.j.1003.2012.10168] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
29
|
Schückel S, Sell AF, Kröncke I, Reiss H. Diet overlap among flatfish species in the southern North Sea. JOURNAL OF FISH BIOLOGY 2012; 80:2571-2594. [PMID: 22650434 DOI: 10.1111/j.1095-8649.2012.03309.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The diets of two non-commercial flatfish species (solenette Buglossidium luteum and scaldfish Arnoglossus laterna) and two commercial flatfish species (dab Limanda limanda and plaice Pleuronectes platessa) were compared in a study area in the German Bight (southern North Sea) to investigate prey-resource partitioning between these species. The diets of A. laterna and B. luteum mainly comprised crustaceans (harpacticoids, amphipods, cumaceans and decapods), whereas the diet of L. limanda and P. platessa consisted mainly of polychaetes. The Schoener index, calculated for different fish size classes between these flatfish species, showed a biologically significant diet overlap between small-sized L. limanda and P. platessa and B. luteum and A. laterna, using similar prey resources of smaller prey (e.g. amphipods, harpacticoids and juvenile bivalves). In contrast, with increasing body size, a change in the diet of L. limanda and P. platessa towards larger prey occurred (e.g. polychaetes and decapods), resulting in low diet overlap values with B. luteum and A. laterna. Due to these size-related differences in resource use, it is assumed that there is reduced interspecific competition for prey between larger L. limanda and P. platessa and both non-commercial flatfishes, probably facilitating resource partitioning within the same area. In contrast, smaller L. limanda and P. platessa may compete directly for the same prey resources with B. luteum and A. laterna. Furthermore, prey availability of most important prey items of the studied flatfishes was relatively low in the study area. Therefore, increasing abundances of B. luteum and A. laterna in the southern North Sea since the late 1980s, owing to fishing effects and climate change, might affect the population dynamics of L. limanda and P. platessa.
Collapse
Affiliation(s)
- S Schückel
- Senckenberg Institute, Department for Marine Research, Südstrand 40, 26382 Wilhelmshaven, Germany.
| | | | | | | |
Collapse
|
30
|
Cannas M, Domenici P, Lefrançois C. The effect of hypoxia on ventilation frequency in startled common sole Solea solea. JOURNAL OF FISH BIOLOGY 2012; 80:2636-2642. [PMID: 22650439 DOI: 10.1111/j.1095-8649.2012.03279.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Ventilation frequency (F(V) ) in motionless common sole Solea solea was measured before and after a startling stimulus in normoxia and in hypoxia (15% air saturation). Startling reduced F(V) in normoxia (from mean ±s.e. 41 ± 3·3 beats min⁻¹ to near zero, i.e. 2·0 ± 1·8 beats min⁻¹) and in hypoxia (from mean ±s.e. 80 ± 4·4 to 58·8 ± 12·9 beats min⁻¹). It is suggested that the maintenance of high F(V) in hypoxia may increase the probability of detection by predators compared to normoxia.
Collapse
Affiliation(s)
- M Cannas
- LIENSs, UMR 6250, CNRS-University of La Rochelle, 17000 La Rochelle, France CNR, IAMC, Loc. Sa Mardini, 09072 Torregrande-Oristano, Italy
| | | | | |
Collapse
|
31
|
|
32
|
Nyström M, Norström AV, Blenckner T, de la Torre-Castro M, Eklöf JS, Folke C, Österblom H, Steneck RS, Thyresson M, Troell M. Confronting Feedbacks of Degraded Marine Ecosystems. Ecosystems 2012. [DOI: 10.1007/s10021-012-9530-6] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
33
|
Haynes PS, Brophy D, De Raedemaecker F, McGrath D. The feeding ecology of 0 year-group turbot Scophthalmus maximus and brill Scophthalmus rhombus on Irish west coast nursery grounds. JOURNAL OF FISH BIOLOGY 2011; 79:1866-1882. [PMID: 22141892 DOI: 10.1111/j.1095-8649.2011.03128.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
On sandy beach nursery grounds along the west coast of Ireland, 0 year-group turbot Scophthalmus maximus were found to consume six types of crustaceans, in addition to polychaetes. The 0 year-group brill Scophthalmus rhombus fed almost exclusively on mysids, even though nine taxonomic prey groups were identified in the sediment across the investigated beaches. Both species avoided non-motile organisms such as gastropods and bivalves, which were present in high abundances in the sediment and their growth and condition was not significantly related to the quantity or type of prey consumed, temperature or salinity. A high incidence of feeding was detected for both species over the duration of the study, suggesting that food was not limiting on west of Ireland nursery grounds. Temporal partitioning of settlement was detected between S. maximus and S. rhombus, indicating that inter-specific competition for food does not occur between these two flatfish species on west of Ireland nursery grounds.
Collapse
Affiliation(s)
- P S Haynes
- Commercial Fisheries Research Group, Department of Life Sciences, Galway-Mayo Institute of Technology, Galway, Ireland.
| | | | | | | |
Collapse
|
34
|
De Raedemaecker F, O'Connor I, Brophy D, Black A. Macrobenthic prey availability and the potential for food competition between 0 year group Pleuronectes platessa and Limanda limanda. JOURNAL OF FISH BIOLOGY 2011; 79:1918-1939. [PMID: 22141895 DOI: 10.1111/j.1095-8649.2011.03134.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
This study describes the feeding habits of plaice Pleuronectes platessa and dab Limanda limanda during early juvenile development and relates differences between nursery grounds and sampling years to spatial and temporal variabilities in macrobenthic prey availability. The main prey taxa of both species were copepods, bivalves, amphipods, polychaetes and oligochaetes and size-related variation in diet was found. Despite considerable similarity in the prey items, differences in food composition between the two species were observed and spatial variability in diet confirmed their opportunistic feeding behaviour. A high degree of dietary overlap was found in June and decreased steadily throughout the season. The prey composition in the guts of both species largely reflected the composition of the main macrobenthic taxa in the sediment. The overall data suggest that resources were not limiting in the littoral sandy nursery areas in the west of Ireland and no indications were found that exploitative competitive forces upon the benthic prey assemblages occurred between P. platessa and L. limanda. Feeding success, Fulton's K condition and dietary overlap, however, showed spatial and temporal variations, and were probably affected by the availability and density of macrobenthic prey.
Collapse
Affiliation(s)
- F De Raedemaecker
- Marine and Freshwater Research Centre, Department of Life and Physical Sciences, Galway-Mayo Institute of Technology, Dublin Road, Galway, Ireland.
| | | | | | | |
Collapse
|
35
|
Guinand B, Durieux EDH, Dupuy C, Cerqueira F, Bégout ML. Phenotypic and genetic differentiation in young-of-the-year common sole (Solea solea) at differentially contaminated nursery grounds. MARINE ENVIRONMENTAL RESEARCH 2011; 71:195-206. [PMID: 21315443 DOI: 10.1016/j.marenvres.2011.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2010] [Revised: 01/13/2011] [Accepted: 01/17/2011] [Indexed: 05/30/2023]
Abstract
Growth-related characters, condition factor, and genetic differentiation were investigated for a single cohort of young-of-the-year (YOY) sole within and among nurseries with differing levels of heavy metals (Cd, Cu and Zn) contamination in the two Charentais Straits, Bay of Biscay, France. Analyses were performed when individuals recruited (May), then after a full summer spent in each nursery (October). Levels of phenotypic and genetic diversity were compared, together with genetic differentiation at a candidate metallothionein (MT) locus and three putatively neutral microsatellite loci. No phenotypic or genetic differentiation was detected among nurseries in May, but significant variation at each phenotypic trait and at the multilocus level in October (P < 0.001). Single locus analysis demonstrated that only the MT locus was significantly differentiated among nurseries, whether corrected for null alleles or not (θ=0.0401 and θ(corr.FreeNA)=0.0326, respectively; P < 0.001). Results indicate that phenotypic differences among YOY sole nurseries present a molecular correlate acting at identical spatio-temporal scales among nurseries, potentially reflecting differential selective pressure among nurseries in response to contamination.
Collapse
Affiliation(s)
- Bruno Guinand
- Université Montpellier II, Institut des Sciences de l'Evolution de Montpellier, Evolution des Poissons, CNRS UMR 5554, place E. Bataillon, c.c. 63, 34095 Montpellier, Cedex 5, France.
| | | | | | | | | |
Collapse
|
36
|
Ciotti BJ, Targett TE, Nash RDM, Batty RS, Burrows MT, Geffen AJ. Development, validation and field application of an RNA-based growth index in juvenile plaice Pleuronectes platessa. JOURNAL OF FISH BIOLOGY 2010; 77:2181-2209. [PMID: 21155778 DOI: 10.1111/j.1095-8649.2010.02786.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A general mechanism relating RNA concentration and growth rate is derived from four physiological assumptions and developed into a growth index for juvenile plaice Pleuronectes platessa. The index describing instantaneous growth rates (G, day⁻¹) in the laboratory with the lowest Akaike information criterion with small-sample bias adjustment was a function of RNA concentration (R, g(RNA)g⁻¹(wet mass)), temperature (T, ° K), body mass (M, g) and DNA concentration (D, g(DNA)g⁻¹(wet mass)): G = β₀ + β(R) R + β(T)T + β(T2)T² + β(M)M + β(D)D + β(RT)RT. RNA concentration began to respond to changes in feeding conditions within 8 days, suggesting that the index reflects growth rate in the short-term. Furthermore, the index distinguished between rapid growth and negative growth of juvenile P. platessa measured directly in laboratory and field enclosures, respectively. An application of the RNA-based growth index at two beaches on the west coast of Scotland suggested that the growth of juvenile P. platessa varies considerably in space and time and is submaximum in late summer.
Collapse
Affiliation(s)
- B J Ciotti
- School of Marine Science and Policy, University of Delaware, Lewes, DE 19958, USA.
| | | | | | | | | | | |
Collapse
|
37
|
Pörtner HO, Peck MA. Climate change effects on fishes and fisheries: towards a cause-and-effect understanding. JOURNAL OF FISH BIOLOGY 2010; 77:1745-79. [PMID: 21078088 DOI: 10.1111/j.1095-8649.2010.02783.x] [Citation(s) in RCA: 337] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Ongoing climate change is predicted to affect individual organisms during all life stages, thereby affecting populations of a species, communities and the functioning of ecosystems. These effects of climate change can be direct, through changing water temperatures and associated phenologies, the lengths and frequency of hypoxia events, through ongoing ocean acidification trends or through shifts in hydrodynamics and in sea level. In some cases, climate interactions with a species will also, or mostly, be indirect and mediated through direct effects on key prey species which change the composition and dynamic coupling of food webs. Thus, the implications of climate change for marine fish populations can be seen to result from phenomena at four interlinked levels of biological organization: (1) organismal-level physiological changes will occur in response to changing environmental variables such as temperature, dissolved oxygen and ocean carbon dioxide levels. An integrated view of relevant effects, adaptation processes and tolerance limits is provided by the concept of oxygen and capacity-limited thermal tolerance (OCLT). (2) Individual-level behavioural changes may occur such as the avoidance of unfavourable conditions and, if possible, movement into suitable areas. (3) Population-level changes may be observed via changes in the balance between rates of mortality, growth and reproduction. This includes changes in the retention or dispersion of early life stages by ocean currents, which lead to the establishment of new populations in new areas or abandonment of traditional habitats. (4) Ecosystem-level changes in productivity and food web interactions will result from differing physiological responses by organisms at different levels of the food web. The shifts in biogeography and warming-induced biodiversity will affect species productivity and may, thus, explain changes in fisheries economies. This paper tries to establish links between various levels of biological organization by means of addressing the effective physiological principles at the cellular, tissue and whole organism levels.
Collapse
Affiliation(s)
- H O Pörtner
- Integrative Ecophysiology, Alfred-Wegener-Institute, Am Handelshafen 12, 27570 Bremerhaven, Germany.
| | | |
Collapse
|
38
|
Peterson MS, Lowe MR. Implications of Cumulative Impacts to Estuarine and Marine Habitat Quality for Fish and Invertebrate Resources. ACTA ACUST UNITED AC 2009. [DOI: 10.1080/10641260903171803] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
39
|
Türkmen M, Türkmen A, Tepe Y, Töre Y, Ateş A. Determination of metals in fish species from Aegean and Mediterranean seas. Food Chem 2009. [DOI: 10.1016/j.foodchem.2008.06.071] [Citation(s) in RCA: 147] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
40
|
Sparrevohn CR, Støttrup JG. Diet, Abundance, and Distribution as Indices of Turbot (Psetta maximaL.) Release Habitat Suitability. ACTA ACUST UNITED AC 2008. [DOI: 10.1080/10641260701686846] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
41
|
Meng L, Taylor DL, Serbst J, Powell JC. Assessing Habitat Quality of Mount Hope Bay and Narragansett Bay Using Growth, RNA:DNA, and Feeding Habits of Caged Juvenile Winter Flounder (Pseudopleuronectes americanus Walbaum). Northeast Nat (Steuben) 2008. [DOI: 10.1656/1092-6194(2008)15[35:ahqomh]2.0.co;2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
42
|
Meng L, Taylor DL, Serbst J, Powell JC. Assessing Habitat Quality of Mount Hope Bay and Narragansett Bay Using Growth, RNA:DNA, and Feeding Habits of Caged Juvenile Winter Flounder (Pseudopleuronectes americanus Walbaum). Northeast Nat (Steuben) 2008. [DOI: 10.1656/1092-6194(2008)15%5b35%3aahqomh%5d2.0.co%3b2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
43
|
Abstract
We found low, albeit significant, genetic differentiation among turbot (Psetta maxima) in the Baltic Sea but in contrast to earlier findings we found no evidence of isolation by distance. In fact temporal variation among years in one locality exceeded spatial variation among localities. This is an unexpected result since adult turbot are sedentary and eggs are demersal at the salinities occurring in the Baltic. Our findings are most likely explained by the fact that we sampled fish that were born after/during a large influx of water to the Baltic Sea, which may have had the consequence that previously locally and relatively sedentary populations became admixed. These results suggest that populations that colonize relatively variable habitats, like the Baltic, face problems. Any adaptations to local conditions that may build up during stable periods may quickly become eroded when conditions change and/or when populations become admixed. Our results indicate that the ability of turbot to survive and reproduce at the low salinity in the Baltic is more likely due to phenotypic plasticity than a strict genetic adaptation to low salinity.
Collapse
Affiliation(s)
- Ann-Britt Florin
- Institute of Coastal Research, Swedish Board of Fisheries, Box 109, SE-740 71 Oregrund, Sweden.
| | | |
Collapse
|
44
|
Vasconcelos RP, Reis-Santos P, Fonseca V, Maia A, Ruano M, França S, Vinagre C, Costa MJ, Cabral H. Assessing anthropogenic pressures on estuarine fish nurseries along the Portuguese coast: a multi-metric index and conceptual approach. THE SCIENCE OF THE TOTAL ENVIRONMENT 2007; 374:199-215. [PMID: 17292947 DOI: 10.1016/j.scitotenv.2006.12.048] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2006] [Revised: 09/13/2006] [Accepted: 12/21/2006] [Indexed: 05/13/2023]
Abstract
Estuaries are among the most productive ecosystems and simultaneously among the most threatened by conflicting human activities which damage their ecological functions, namely their nursery role for many fish species. A thorough assessment of the anthropogenic pressures in Portuguese estuarine systems (Douro, Ria de Aveiro, Mondego, Tejo, Sado, Mira, Ria Formosa and Guadiana) was made applying an aggregating multi-metric index, which quantitatively evaluates influences from key components: dams, population and industry, port activities and resource exploitation. Estuaries were ranked from most (Tejo) to least pressured (Mira), and the most influential types of pressure identified. In most estuaries overall pressure was generated by a dominant group of pressure components, with several systems being afflicted by similar problematic sources. An evaluation of the influence of anthropogenic pressures on the most important sparidae, soleidae, pleuronectidae, moronidae and clupeidae species that use these estuaries as nurseries was also performed. To consolidate information and promote management an ecological conceptual model was built to identify potential problems for the nursery function played by these estuaries, identifying pressure agents, ecological impacts and endpoints for the anthropogenic sources quantified in the assessment. This will be important baseline information to safeguard these vital areas, articulating information and forecasting the potential efficacy of future management options.
Collapse
Affiliation(s)
- R P Vasconcelos
- Instituto de Oceanografia, Universidade de Lisboa, Faculdade de Ciências, Campo Grande, 1749-016 Lisboa, Portugal.
| | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Cunha FEDA, Monteiro-Neto C, Nottingham MC. Temporal and spatial variations in tidepool fish assemblages of the northeast coast of Brazil. BIOTA NEOTROPICA 2007. [DOI: 10.1590/s1676-06032007000100016] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Abstract
Temporal and spatial variations and environmental factors influencing the structure of tidepool fish assemblages were quantitatively investigated at Iparana beach, northeast Brazilian coast. The majority of the tidepool fishes sampled were suprabenthic juvenile individuals of great mobility. We recorded during monthly diurnal underwater visual censuses a total of 4,750 fish from 26 species, represented mainly by partial residents from the families Scaridae, Haemulidae, Gerreidae and Pomacentridae. The number of species and individuals showed significant variability among tidepools as a response to variations in their volume and type of substrate cover. The greatest species abundance and richness associated with rocks covered with algae suggested that substrate complexity is one of the main factors defining the spatial structure of the tidepool ichthyofauna. Temporal variability in species abundance and richness was associated with changes in salinity levels due to seasonal rainfalls. A higher number of juvenile fishes from December to May in our samples corroborate the hypothesis that the tidepools act as nursery sites. Therefore, the species associations found in this study and their relation to seasonal and spatial discontinuities may be partly explained according to their habitat requirements and reproductive cycles.
Collapse
|
46
|
Vasconcellos RM, Santos JNDS, Silva MDA, Araújo FG. Efeito do grau de exposição às ondas sobre a comunidade de peixes juvenis em praias arenosas do Município do Rio de Janeiro, Brasil. BIOTA NEOTROPICA 2007. [DOI: 10.1590/s1676-06032007000100013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A distribuição e abundância da ictiofauna na zona de arrebentação de praias arenosas do Município do Rio de Janeiro, Brasil, foram estudadas objetivando detectar variações sazonais ou influências do grau de exposição na estrutura da comunidade de peixes jovens. Amostras trimestrais foram realizadas em 10 praias sendo agrupadas de acordo com o nível de exposição (abrigada, exposta e muito exposta), entre Janeiro e Novembro de 2004, com os arrastos tendo sido efetuados perpendiculares à linha de costa. Foram registrados 6.464 peixes, distribuídos em 38 espécies e 22 famílias, com o predomínio de formas juvenis ou de pequeno porte. As famílias Clupeidae, Carangidae e Sciaenidae representaram 79% do número total de indivíduos e 61% da biomassa total. As espécies de maior participação na biomassa, representando 81% do peso total, foram Harengula clupeola (36%), Orthopristis ruber (14%), Mugil liza (10%), Trachinotus goodei (8%), Trachinotus carolinus (7%) e Umbrina coroides (6%). Três espécies apresentaram maior abundância relativa, tendo cada uma, contribuído acima de 10% do número total (Harengula clupeola, Umbrina coroides e Trachinotus carolinus), mas somente T. carolinus apresentou um padrão bem definido, sendo mais abundante nas zonas abrigadas. As maiores CPUEs (número de indivíduos e biomassa) e o número de espécies foram encontradas nas zonas abrigadas (p < 0,05); sazonalmente nenhum destes indicadores apresentou diferença significativa (p > 0,05). O grau de exposição às ondas foi confirmado como um fator primário na estruturação da comunidade de peixes, com os locais mais abrigados provavelmente associados à maior disponibilidade de organismos planctônicos, menores turbulências e maior estabilidade do substrato.
Collapse
|
47
|
DARNAUDE AUDREYM. Fish ecology and terrestrial carbon use in coastal areas: implications for marine fish production. J Anim Ecol 2005. [DOI: 10.1111/j.1365-2656.2005.00978.x] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
48
|
Henry F, Amara R, Courcot L, Lacouture D, Bertho ML. Heavy metals in four fish species from the French coast of the Eastern English Channel and Southern Bight of the North Sea. ENVIRONMENT INTERNATIONAL 2004; 30:675-683. [PMID: 15051244 DOI: 10.1016/j.envint.2003.12.007] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2003] [Accepted: 12/11/2003] [Indexed: 05/24/2023]
Abstract
Shallow coastal waters act as nurseries for various fish species and have been recognized as essential fish habitat. We studied heavy metal concentrations in four fish species (plaice, dab, flounder and cod) as an indicator of large-scale habitat quality. The study took place along the French coasts between the Eastern English Channel and the Southern Bight of the North Sea. All species show different concentrations of measured metals (e.g., Cd, Cu, Mn and Pb) in liver but not in muscle. The highest concentrations are found for the flounder and the lowest for cod which is consistent with their habitat and diet. Although our results do not highlight levels of appreciable pollution within the study area, inter-site differences are mainly observed in the muscle tissues and are generally in agreement with the known environmental data (e.g., anthropogenic pressure). However, in the Bay of Seine, one of the most contaminated estuaries in Europe, metal concentrations are in the same range or even lower than those found in fish collected from areas distant from any anthropogenic pressures. At one site, the comparisons of the Cd, Cu and Pb concentrations between healthy and diseased dabs have been carried out on the muscle and liver tissues. The results of this preliminary study show a relationship between metal concentrations and the pathological status of the fish. The use of fish health as indicator of habitat quality is discussed.
Collapse
Affiliation(s)
- F Henry
- Université du Littoral-Côte d'Opale, UMR CNRS 8013, 32 av. Foch, 62930 Wimereux, France.
| | | | | | | | | |
Collapse
|
49
|
Patterns in use of estuarine habitat by juvenile English sole (Pleuronectes vetulus) in four Eastern North Pacific estuaries. ACTA ACUST UNITED AC 2003. [DOI: 10.1007/bf02803370] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
50
|
Pittman SJ, McAlpine CA. Movements of marine fish and decapod crustaceans: process, theory and application. ADVANCES IN MARINE BIOLOGY 2003; 44:205-294. [PMID: 12846043 DOI: 10.1016/s0065-2881(03)44004-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Many marine species have a multi-phase ontogeny, with each phase usually associated with a spatially and temporally discrete set of movements. For many fish and decapod crustaceans that live inshore, a tri-phasic life cycle is widespread, involving: (1) the movement of planktonic eggs and larvae to nursery areas; (2) a range of routine shelter and foraging movements that maintain a home range; and (3) spawning migrations away from the home range to close the life cycle. Additional complexity is found in migrations that are not for the purpose of spawning and movements that result in a relocation of the home range of an individual that cannot be defined as an ontogenetic shift. Tracking and tagging studies confirm that life cycle movements occur across a wide range of spatial and temporal scales. This dynamic multi-scale complexity presents a significant problem in selecting appropriate scales for studying highly mobile marine animals. We address this problem by first comprehensively reviewing the movement patterns of fish and decapod crustaceans that use inshore areas and present a synthesis of life cycle strategies, together with five categories of movement. We then examine the scale-related limitations of traditional approaches to studies of animal-environment relationships. We demonstrate that studies of marine animals have rarely been undertaken at scales appropriate to the way animals use their environment and argue that future studies must incorporate animal movement into the design of sampling strategies. A major limitation of many studies is that they have focused on: (1) a single scale for animals that respond to their environment at multiple scales or (2) a single habitat type for animals that use multiple habitat types. We develop a hierarchical conceptual framework that deals with the problem of scale and environmental heterogeneity and we offer a new definition of 'habitat' from an organism-based perspective. To demonstrate that the conceptual framework can be applied, we explore the range of tools that are currently available for both measuring animal movement patterns and for mapping and quantifying marine environments at multiple scales. The application of a hierarchical approach, together with the coordinated integration of spatial technologies offers an unprecedented opportunity for researchers to tackle a range of animal-environment questions for highly mobile marine animals. Without scale-explicit information on animal movements many marine conservation and resource management strategies are less likely to achieve their primary objectives.
Collapse
Affiliation(s)
- S J Pittman
- Landscape Ecology Group, Department of Geographical Sciences and Planning, Ecology Centre, University of Queensland, Brisbane 4072, Australia.
| | | |
Collapse
|