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Fishes
Special Issues
Life History of Fish under Anthropogenic Impacts and Climate Changes
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Life History of Fish under Anthropogenic Impacts and Climate Changes

A special issue of Fishes (ISSN 2410-3888). This special issue belongs to the section "Environment and Climate Change".

Deadline for manuscript submissions: closed (30 November 2023) | Viewed by 2817

Special Issue Editors

Dr. Carlotta Mazzoldi

E-Mail Website
Guest Editor
Department of Biology, University of Padova, Via U. Bassi 58/B, 35121 Padova, Italy
Interests: life history traits; conservation; evolution; behavioural ecology; fishery biology
Dr. Mario La Mesa

E-Mail Website
Guest Editor
Institute of Polar Sciences, National Research Council, Via P. Gobetti 101, 40129 Bologna, Italy
Interests: fishery biology and management; life history traits; Antarctic fish fauna
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Teleost and chondrichthyan fish display a wide variability in life history traits (e.g., longevity, size and age at sexual maturity, growth rate, reproductive strategy, fecundity, offspring size) at both inter- and intra-specific levels. The evolution of this variability has been related to several environmental factors. Life history traits may determine or mitigate species vulnerability to different anthropogenic activities, and to climate changes. On the other hand, anthropogenic activities such as fishery as well as climate changes are known to be important drivers of changes in life history traits.

This Special Issue aims to deepen our understanding of the relationships between life history traits and anthropogenic and climate change impacts in order to provide novel insights and improve our understanding of the changes in fish communities from freshwater and marine ecosystems.

Dr. Carlotta Mazzoldi
Dr. Mario La Mesa
Guest Editors

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

  • life history
  • fishery
  • climate change
  • evolution
  • resilience

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Published Papers (1 paper)

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Research

23 pages, 3499 KiB  
Article
Whiting (Merlangius merlangus) Grows Slower and Smaller in the Adriatic Sea: New Insights from a Comparison of Two Populations with a Time Interval of 30 Years
by Federico Calì, Federica Stranci, Mario La Mesa, Carlotta Mazzoldi, Enrico Arneri and Alberto Santojanni
Fishes 2023, 8(7), 341; https://doi.org/10.3390/fishes8070341 - 28 Jun 2023
Cited by 3 | Viewed by 2428
Abstract
Nowadays, overexploitation and climate change are among the major threats to fish production all over the world. In this study, we focused our attention on the Adriatic Sea (AS), a shallow semi-enclosed sub-basin showing the highest exploitation level and warming trend over the [...] Read more.
Nowadays, overexploitation and climate change are among the major threats to fish production all over the world. In this study, we focused our attention on the Adriatic Sea (AS), a shallow semi-enclosed sub-basin showing the highest exploitation level and warming trend over the last decades within the Mediterranean Sea. We investigated the life history traits and population dynamics of the cold-water species whiting (Merlangius merlangus, Gadidae) 30 years apart, which is one of the main commercial species in the Northern AS. The AS represents its southern limit of distribution, in accordance with the thermal preference of this cold-water species. Fish samples were collected monthly using a commercial bottom trawl within the periods 1990–1991 and 2020–2021. The historical comparison highlighted a recent reduction in large specimens (>25 cm total length, TL), which was not associated with trunked age structures, therefore indicating a decrease in growth performance over a period of 30 years (L∞90–91 = 29.5 cm TL; L∞20–21 = 22.8 cm TL). The current size at first sexual maturity was achieved within the first year of life, at around 16 cm TL for males and 17 cm TL for females. In the AS, whiting spawns in batches from December to March, showing a reproductive investment (gonadosomatic index) one order of magnitude higher in females than in males. Potential fecundity (F) ranged from 46,144 to 424,298, with it being heavily dependent on fish size. We hypothesize that the decreased growth performance might be related to a metabolic constraint, possibly related to the increased temperature and its consequences. Moreover, considering the detrimental effects of size reduction on reproductive potential, these findings suggest a potential endangerment situation for the long-term maintenance of whiting and cold-related species in the AS, which should be accounted for in setting management strategies. Full article
(This article belongs to the Special Issue Life History of Fish under Anthropogenic Impacts and Climate Changes)
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