Abundance and Diversity of the Sea Fish Community

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312). This special issue belongs to the section "Marine Biology".

Deadline for manuscript submissions: closed (20 April 2025) | Viewed by 2943

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Guest Editor
Department of Marine Studies, University of Split, 21000 Split, Croatia
Interests: fisheries; ichthyology; fisheries science; stock assessment; fisheries management; fish ecology; marine ecology; population dynamics; marine environment; fisheries sustainability
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Special Issue Information

Dear Colleagues,

Although there are a few common patterns of behavior that can often be related to various types of fish, each species has its own specific habits and preferred habitats they use throughout the year. These common and specific patterns can be seen in basic activities, for example, when fish feed, breed, aggregate and rest. Thus, it is important to understand all the processes that are associated with feeding activity, shelter usage and predator avoidance, as well as the environmental drivers affecting it. Having a basic understanding of the behaviors and habitats related to each fish species is essential to understanding the complex marine ecosystem and allows us to protect fish, maintain biodiversity and improve or restore the marine environment.

This Special Issue presents an opportunity to explore this topic in more detail, recruiting papers that discuss marine fish habits in the natural environment and captivity, such as fish ecology, fish biodiversity, fish feeding, breeding and habitats.

Prof. Dr. Alen Soldo
Guest Editor

Manuscript Submission Information

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Keywords

  • feeding
  • migrations
  • spawning
  • hydroacoustic
  • tagging
  • underwater observations
  • captive and wild fish

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Published Papers (2 papers)

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17 pages, 807 KiB  
Article
CPUE Standardization and Socioeconomic Influences on Red Snow Crab (Chionoecetes japonicus) Fisheries in Korean Waters
by Moo-Jin Kim, Heejoong Kang, Sang Chul Yoon, Ji-Hoon Choi and Hyun Woo Kim
J. Mar. Sci. Eng. 2025, 13(4), 711; https://doi.org/10.3390/jmse13040711 - 2 Apr 2025
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Abstract
The standardization of catch per unit effort (CPUE) is essential for accurate stock assessment in fisheries management. This study focuses on CPUE standardization for red snow crab (Chionoecetes japonicus) in South Korea, incorporating both spatiotemporal and socioeconomic factors into a generalized [...] Read more.
The standardization of catch per unit effort (CPUE) is essential for accurate stock assessment in fisheries management. This study focuses on CPUE standardization for red snow crab (Chionoecetes japonicus) in South Korea, incorporating both spatiotemporal and socioeconomic factors into a generalized additive model (GAM) framework. Using fishery-dependent data from 2009 to 2023, we analyzed the influence of variables such as the proportion of live catch, oil prices, global export prices, and the COVID-19 pandemic on CPUE trends. To quantify the contribution of each variable, a stepwise exclusion analysis was conducted. The results show that excluding socioeconomic variables leads to a more stable CPUE trajectory, indicating that nominal CPUE fluctuations are partially driven by economic conditions rather than changes in biological abundance. These findings highlight the importance of accounting for external drivers, particularly socioeconomic factors when standardizing CPUE. By doing so, the year effect extracted from the model can more accurately reflect relative stock abundance. The approach presented here offers a practical solution for improving CPUE estimates in data-limited fisheries and supports adaptive, evidence-based fisheries management. Full article
(This article belongs to the Special Issue Abundance and Diversity of the Sea Fish Community)
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8 pages, 755 KiB  
Brief Report
Complete Mitogenomes of Deep-Sea Eels Histiobranchus bathybius and Simenchelys parasitica and a New Record of H. bathybius from the East Mariana Basin, Western Pacific Ocean
by Jeonghoon Han, Han-Jun Kim, Byung-Jik Kim, Ji-Yeon Hyeon, Choong Hwan Noh and Young-Ung Choi
J. Mar. Sci. Eng. 2024, 12(8), 1427; https://doi.org/10.3390/jmse12081427 - 18 Aug 2024
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Abstract
In this study, using Illumina sequencing, we sequenced first the complete mitochondrial genome (mitogenome) of two deep-sea eels, Histiobranchus bathybius and Simenchelys parasitica, collected from the East Mariana Basin in the Western Pacific Ocean. The complete length of the H. bathybius and [...] Read more.
In this study, using Illumina sequencing, we sequenced first the complete mitochondrial genome (mitogenome) of two deep-sea eels, Histiobranchus bathybius and Simenchelys parasitica, collected from the East Mariana Basin in the Western Pacific Ocean. The complete length of the H. bathybius and S. parasitica mitogenomes were 16,696 and 16,687 bp, respectively, each containing 37 genes (13 protein-coding genes, 22 tRNA genes, and 2 ribosomal RNA genes). To enhance the accuracy of the identification of H. bathybius and S. parasitica, we performed a phylogenetic analysis of multiple deep-sea eels based on the mitochondrial DNA gene (cytochrome c oxidase subunit I [COI]) using the maximum likelihood method. Our phylogenetic tree analysis confirmed that the specimens collected in this study are congeneric species of H. bathybius and S. parasitica reported in previous studies. Based on these results, we report the first complete mitogenomes of H. bathybius and S. parasitica and a new record for the two species in the East Mariana Basin. Full article
(This article belongs to the Special Issue Abundance and Diversity of the Sea Fish Community)
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