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  1. Article ; Online: Suitability of compensatory saltmarsh habitat for feeding and diet of multiple estuarine fish species

    Stamp, Thomas / West, Elizabeth / Colclough, Steve / Plenty, Shaun / Ciotti, Benjamin / Robbins, Tim / Sheehan, Emma

    Fisheries Management and Ecology. 2023 Feb., v. 30, no. 1 p.44-55

    2023  

    Abstract: Saltmarsh provides essential fish feeding and nursery habitat but has globally declined by 50%. We used a statistical block design to compare fish feeding activity within human‐engineered or “re‐aligned” saltmarsh to established saltmarsh. Linear and ... ...

    Abstract Saltmarsh provides essential fish feeding and nursery habitat but has globally declined by 50%. We used a statistical block design to compare fish feeding activity within human‐engineered or “re‐aligned” saltmarsh to established saltmarsh. Linear and multivariate modelling highlighted that Thinlip Mullet (Chelon ramada) and European Bass (Dicentrarchus labrax) feeding rates were 16% and 31% lower within re‐aligned than established saltmarshes, whereas Gobies (Pomatoschistus spp.) fed at the same rate as in both habitats. Analysis of European bass and Goby gut contents highlighted that important detritivorous prey species were up to 85.6% lower in re‐aligned sites. Lower vegetation density may have negatively affected the feeding ecologies of fishes within re‐aligned sites. However, due to the ecological value and potential for further improvement or habitat development, continued assessment of the beneficial effects of re‐aligned sites for fisheries and net gain perspectives is needed.
    Keywords Chelon ; Dicentrarchus labrax ; Pomatoschistus ; administrative management ; bass ; detritivores ; diet ; digestive system ; ecological value ; estuarine fish ; fish feeding ; habitats ; mullet ; prey species ; salt marshes ; vegetation
    Language English
    Dates of publication 2023-02
    Size p. 44-55.
    Publishing place John Wiley & Sons, Ltd
    Document type Article ; Online
    Note JOURNAL ARTICLE
    ZDB-ID 1193882-1
    ISSN 0969-997X
    ISSN 0969-997X
    DOI 10.1111/fme.12599
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 5885: Show issues

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  2. Article ; Online: Travelling away from home? Joining global change and recovery scenarios to anticipate the marine distribution of diadromous fish

    Charbonnel, Anaïs / Lassalle, Géraldine / Lambert, Patrick / Quinton, Eric / Geßner, Jörn / Rochard, Eric / Colclough, Steve / Brevé, Niels / Acolas, Marie Laure

    Ecological Indicators

    2024  Volume 160

    Abstract: Species Distribution Models (SDM) are useful tools providing results that can be extrapolated to anticipate species range shifts, under climate change scenarios. SDM studies integrating spatial constraints are significantly lacking in the marine ... ...

    Abstract Species Distribution Models (SDM) are useful tools providing results that can be extrapolated to anticipate species range shifts, under climate change scenarios. SDM studies integrating spatial constraints are significantly lacking in the marine environment, leading to optimistic predictions. This is particularly true for anadromous species in which marine distributions can be driven by their affinity to their natal rivers. Acipenser sturio is a critically endangered anadromous fish for which two stocked populations are currently maintained in the Gironde-Garonne-Dordogne (France) and Elbe (Germany) river systems. Benefiting from bycatch reports of A. sturio, we applied a SDM process that explicitly considers distance to home when evaluating habitat suitability. More precisely, we included the variable ‘distance to mouth of the natal river system’ into SDM inputs to test and characterize its influence on the marine distribution of A. sturio. We used this model to obtain the marine distribution under current climatic conditions with the two source populations and under population recovery scenarios (functional populations hypothesized to exist in ten currently unoccupied river systems). We projected the model under future conditions with two climatic scenarios (RCP 4.5 and 8.5) and three time slices over the 2023–2099 period. Constrained-ranges of both existing and hypothetical populations are projected to expand in the future. We observed an overall increase of habitat suitability, with new suitable sectors localized further from natal river mouths. By informing on the suitable marine surface that each hypothetical population holds and adds to the existing ones, our approach aims at informing about the feasibility of species recovery and marine habitats protection strategies. Our findings highlight the need for including dispersal information in marine SDM. The application of our dispersal-constrained approach may be considered for other less-well-known species for which dispersal point sources are identifiable, ...
    Keywords Acipenser sturio ; Anadromous species ; Climate change ; Dispersal constraint ; Marine habitat ; Natal homing ; Recovery scenarios ; Species distribution model
    Subject code 333
    Language English
    Publishing country nl
    Document type Article ; Online
    ZDB-ID 2036774-0
    ISSN 1872-7034 ; 1470-160X
    ISSN (online) 1872-7034
    ISSN 1470-160X
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article: Variations in the feeding of 0-group bass Dicentrarchus labrax (L.) in managed realignment areas and saltmarshes in SE England

    Fonseca, Leila / Colclough, Steve / Hughes, Rob G

    Hydrobiologia. 2011 Sept., v. 672, no. 1

    2011  

    Abstract: The diets of 0-group bass Dicentrarchus labrax were investigated in SE England in the Blackwater Estuary: three managed realignment sites at Tollesbury, Abbotts Hall and Orplands; and two established saltmarshes at Tollesbury and Abbotts Hall. In Summer, ...

    Abstract The diets of 0-group bass Dicentrarchus labrax were investigated in SE England in the Blackwater Estuary: three managed realignment sites at Tollesbury, Abbotts Hall and Orplands; and two established saltmarshes at Tollesbury and Abbotts Hall. In Summer, small 0-group (15–30 mm) bass consumed calanoid and harpacticoid copepods predominantly and left the sites significantly fuller than on entering them (Mann–Whitney, W = 5837, P < 0.001). In Summer, large 0-group (30–59 mm) bass consumed benthic prey, predominantly Carcinus maenas, Nereis spp. and amphipods. These larger bass left Tollesbury managed realignment site, and the established saltmarshes at Tollesbury and Abbotts Hall, significantly fuller than on entry (Mann–Whitney, W = 1116, 372 and 229, respectively, all P < 0.05), unlike at the Abbotts Hall and Orplands managed realignment sites where they had less time to feed. Early site access and soft sediments for macroinvertebrates improved bass feeding opportunities. A wider range of prey was exploited by large 0-group bass in Autumn than in Summer (ANOSIM, R = 0.093, P < 0.05) including organisms associated with the vegetation such as chironomids and fulgoromorphs. Microhabitat differences influence the feeding of this recreationally and commercially important species during one of its most vulnerable life stages, however by Autumn, these site differences are mitigated by the opportunistic feeding of 0-group bass.
    Keywords Amphipoda ; Carcinus maenas ; Copepoda ; Dicentrarchus labrax ; bass ; diet ; estuaries ; macroinvertebrates ; microhabitats ; salt marshes ; sediments ; vegetation ; England
    Language English
    Dates of publication 2011-09
    Size p. 15-31.
    Publishing place Springer-Verlag
    Document type Article
    ZDB-ID 214428-1
    ISSN 1573-5117 ; 0018-8158
    ISSN (online) 1573-5117
    ISSN 0018-8158
    DOI 10.1007/s10750-011-0753-x
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

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  4. Article ; Online: Setting new thermal standards for transitional and coastal (TraC) waters.

    Wither, Andrew / Bamber, Roger / Colclough, Steve / Dyer, Keith / Elliott, Mike / Holmes, Peter / Jenner, Henk / Taylor, Colin / Turnpenny, Andy

    Marine pollution bulletin

    2012  Volume 64, Issue 8, Page(s) 1564–1579

    Abstract: The construction of a new generation of coastal power stations in the UK and other western European countries has highlighted the absence of robust standards for thermal discharges to transitional and coastal waters. The proposed discharge volumes are ... ...

    Abstract The construction of a new generation of coastal power stations in the UK and other western European countries has highlighted the absence of robust standards for thermal discharges to transitional and coastal waters. The proposed discharge volumes are greater than hitherto, yet there has been little independent critical examination of their potential impact, whilst much of the existing guidance has been adapted from freshwater practice. This review considers the available knowledge on the tolerance and behaviour of fish and other marine biota to heated effluents. Appropriate ways are suggested of grouping fish species to reflect their sensitivity to thermal effects. The plethora of existing standards are considered and their validity assessed in a framework of predicted seawater temperature rise. Those species or groups of organisms most likely to be affected are identified and finally specific recommendations for thermal standards consistent with long term sustainability are proposed.
    MeSH term(s) Adaptation, Physiological ; Animals ; Aquatic Organisms/physiology ; Fishes ; Global Warming ; Hot Temperature/adverse effects ; Seawater/chemistry ; Water Quality/standards
    Language English
    Publishing date 2012-08
    Publishing country England
    Document type Journal Article
    ZDB-ID 2001296-2
    ISSN 1879-3363 ; 0025-326X
    ISSN (online) 1879-3363
    ISSN 0025-326X
    DOI 10.1016/j.marpolbul.2012.05.019
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Setting new thermal standards for transitional and coastal (TraC) waters

    Wither, Andrew / Bamber, Roger / Colclough, Steve / Dyer, Keith / Elliott, Mike / Holmes, Peter / Jenner, Henk / Taylor, Colin / Turnpenny, Andy

    Marine pollution bulletin

    Volume v. 64,, Issue no. 8

    Abstract: The construction of a new generation of coastal power stations in the UK and other western European countries has highlighted the absence of robust standards for thermal discharges to transitional and coastal waters. The proposed discharge volumes are ... ...

    Abstract The construction of a new generation of coastal power stations in the UK and other western European countries has highlighted the absence of robust standards for thermal discharges to transitional and coastal waters. The proposed discharge volumes are greater than hitherto, yet there has been little independent critical examination of their potential impact, whilst much of the existing guidance has been adapted from freshwater practice. This review considers the available knowledge on the tolerance and behaviour of fish and other marine biota to heated effluents. Appropriate ways are suggested of grouping fish species to reflect their sensitivity to thermal effects. The plethora of existing standards are considered and their validity assessed in a framework of predicted seawater temperature rise. Those species or groups of organisms most likely to be affected are identified and finally specific recommendations for thermal standards consistent with long term sustainability are proposed.
    Keywords seawater ; freshwater ; fish ; effluents ; coastal water ; water pollution ; fish behavior ; temperature
    Language English
    Document type Article
    ISSN 0025-326X
    Database AGRIS - International Information System for the Agricultural Sciences and Technology

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