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Fishes
Special Issues
Recent Advances in Foraging Behavior of Fish
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Recent Advances in Foraging Behavior of Fish

A special issue of Fishes (ISSN 2410-3888). This special issue belongs to the section "Nutrition and Feeding".

Deadline for manuscript submissions: closed (15 April 2024) | Viewed by 4272

Special Issue Editor

Dr. Davide Di Blasi

E-Mail Website
Guest Editor
Department of Integrative Marine Ecology (EMI), Genoa Marine Centre (GMC), Stazione Zoologica Anton Dohrn–National Institute of Marine Biology, Ecology and Biotechnology, Villa del Principe, Piazza del Principe 4, 16126 Genoa, Italy
Interests: fish ecology; fish monitoring; fish biology; fisheries science; ichthyology; marine biodiversity

Special Issue Information

Dear Colleagues,

The feeding behaviour, for fish as for other taxa, represents a crucial element to outline the ecological role of a species and its ability to exploit the possibilities that the environment in which it lives offers. There are different ways to study the feeding habits, from the direct investigation of stomach contents, which returns a very accurate but point information of prey consumption, to the analysis of stable isotopes, which offers a wider overview of the resource usage. Furthermore, less direct methods are based on the study of the morphology of the traits involved in feeding activity to infer prey use. Feeding modes can also be observed and deepened using visual techniques, especially the recently evolving remote ones.

All the mentioned methods can be carried out for the study of the feeding behaviour simply of a single species, to compare different population or morphotypes, to analyse ontogenetic changes, to compare different fish species more or less taxonomically related.

Studying feeding behaviour means investigate the present, but also lay the foundations for understanding a future perspective of a species, particularly in the context of environmental changes, which could lead to shifts in resource availability.

Dr. Davide Di Blasi
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Fishes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • diet
  • feeding modes
  • ecomorphology
  • trophic roles
  • feeding plasticity
  • adaptation

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Published Papers (2 papers)

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Research

14 pages, 2051 KiB  
Article
Feeding Behaviour of Seven Icefish Species (Channichthyidae) in the Ross Sea, Antarctica
by Erica Carlig, Davide Di Blasi, Laura Ghigliotti, Andreas Scalas, Andrew L. Stewart and Michela Mortara
Fishes 2024, 9(7), 247; https://doi.org/10.3390/fishes9070247 - 25 Jun 2024
Viewed by 721
Abstract
The Channichthyidae, a monophyletic fish group belonging to the suborder Notothenioidei, are uniquely adapted to the polar environment. However, while their physiology has been extensively studied, studies on their ecology are relatively rare. Here, we investigated the trophic ecology of seven icefish species [...] Read more.
The Channichthyidae, a monophyletic fish group belonging to the suborder Notothenioidei, are uniquely adapted to the polar environment. However, while their physiology has been extensively studied, studies on their ecology are relatively rare. Here, we investigated the trophic ecology of seven icefish species (Chaenodraco wilsoni, Chionobathyscus dewitti, Chionodraco hamatus, Dacodraco hunteri, Neopagetopis ionah, Pagetodes antarcticus and Pagetopsis macropterus) by using the traditional morphometric approach to assess the relationship between form and feeding function. The suction index (SI), the mechanical advantage in jaw closing (MA) and nine morphological traits related to feeding structures have been analysed. Icefish species are characterised by non-protractible, elongate jaws and a wide gape; such morphological features influence the low values of both MA and SI, supporting their ram-feeding habit. The ecomorphological differences among species resulted mainly determined by the anatomical structures related to SI. Such differences do not seem to be determined primarily by the type of prey, as is the case in other taxonomic groups of Notothenioidei, but rather by phylogenetic proximity. A 3D animation was developed to visualise the different feeding modes of two icefish species (C. hamatus and P. macropterus) which are characterised by different approaches to prey. Full article
(This article belongs to the Special Issue Recent Advances in Foraging Behavior of Fish)
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16 pages, 1679 KiB  
Article
Seasonal Variation in the Epibenthic Feeding Habits of Hilsa Shad (Tenualosa ilisha) in the Upper Meghna River Estuary, Bangladesh
by Md. Jahangir Sarker, Pallab Kumer Sarker, Lawrence B. Cahoon, Afsana Kabir Dipty, Md. Abul Bashar, Md. Monjurul Hasan, Yahia Mahmud and Md. Milon Sarker
Fishes 2023, 8(7), 335; https://doi.org/10.3390/fishes8070335 - 24 Jun 2023
Cited by 4 | Viewed by 2620
Abstract
Seasonal changes in feeding habits of hilsa (Tenualosa ilisha) were studied monthly in 2019 in the upper Meghna estuary, Bangladesh, through gut content analyses. Tychoplanktonic diatoms followed by copepods were abundant in all months and size groups of hilsa. The inverse [...] Read more.
Seasonal changes in feeding habits of hilsa (Tenualosa ilisha) were studied monthly in 2019 in the upper Meghna estuary, Bangladesh, through gut content analyses. Tychoplanktonic diatoms followed by copepods were abundant in all months and size groups of hilsa. The inverse relationship between niche breadth and relative length of the gut revealed hilsa consume a variety of food at their early stages while their feeding habit changes towards diatoms during the adult stage with the development of gill rakers. Young hilsas prefer mostly tychoplanktonic diatoms (Aulacoseira sp., Triceratium sp., Nitzschia sp., Synedra sp., and Coscinodiscus sp.) and copepods (Pseudodiaptomus sp.). However, adult hilsas rejected Aulacoseira sp. during their spawning season. Ingested sand grains correlated with tychoplankton, revealing their food value from epipelic microalgae and bacteria clinging to them and epibenthic foraging by young hilsas. Thus, this study revealed that young hilsas primarily feed on tychoplanktonic diatoms and copepods from water and near bottom of the upper Meghna estuary during January to June while later stages with the development of gill rakers allow hilsas to feed on planktonic diatoms. Epibenthic feeding needs to be considered more fully in evaluating the biology of hilsa and, perhaps, other clupeids, and in evaluating possible human impacts on this foraging habitat. Full article
(This article belongs to the Special Issue Recent Advances in Foraging Behavior of Fish)
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