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Diversity
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Cephalopod Resilience in Changing Marine Ecosystems
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Cephalopod Resilience in Changing Marine Ecosystems

A special issue of Diversity (ISSN 1424-2818). This special issue belongs to the section "Marine Diversity".

Deadline for manuscript submissions: 31 December 2025 | Viewed by 317

Special Issue Editors

Prof. Dr. Xiaodong Zheng

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Guest Editor
1. Institute of Evolution & Marine Biodiversity (IEMB), Ocean University of China, Qingdao 266003, China
2. Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China
Interests: cephalopod taxonomy; diversity; Mollusca genetic; Cephalopoda
Special Issues, Collections and Topics in MDPI journals
Dr. Ran Xu

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Guest Editor
College of Animal Science and Technology, Anhui Agriculture University, Hefei 230036, China
Interests: biodiversity genomics; molecular evolution
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Cephalopods, mainly including nautiluses, squids, octopuses, and cuttlefishes, are a diverse and ecologically significant group of marine organisms that play critical roles in marine food webs as both predators and prey, and their populations have shown notable responses to global environmental changes, such as ocean warming, acidification, and habitat shifts. In recent years, some cephalopod species have demonstrated population expansions and range shifts, making them important indicators of ecosystem change and resilience. Understanding cephalopod diversity, distribution, and ecological function is essential in terms of predicting how marine ecosystems will respond to ongoing environmental pressures.

This Special Issue aims to explore the diversity and ecological roles of cephalopods in a rapidly changing ocean. We invite studies that explore the following themes: (1) patterns of cephalopod biodiversity across different marine ecosystems, (2) the impacts of environmental change on cephalopod distribution and abundance, (3) their trophic interactions and roles in marine food webs, and (4) the evolutionary adaptations that contribute to their ecological success. By highlighting the diversity and ecological significance of cephalopods, this Special Issue aims to deepen our understanding of their contributions to marine ecosystems and their responses to global change.

We welcome original research, reviews, and perspectives contributing to our understanding of cephalopod diversity and its ecological significance in a changing world.

Prof. Dr. Xiaodong Zheng
Dr. Ran Xu
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. Diversity 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 2100 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

  • cephalopod diversity
  • marine ecosystems
  • climate change impacts
  • trophic interactions
  • species distribution shifts
  • evolutionary adaptations

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Published Papers (1 paper)

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Research

23 pages, 8331 KiB  
Article
Morphological and Molecular Characterization of Eggs and Paralarvae of Green Octopus, Octopus hubbsorum Berry 1953, from the Gulf of California
by Maritza García-Flores, Rosa María Morelos-Castro and Marcial Arellano-Martínez
Diversity 2025, 17(7), 470; https://doi.org/10.3390/d17070470 - 8 Jul 2025
Viewed by 188
Abstract
The green octopus, Octopus hubbsorum, is a merobenthic species that inhabits warm-temperate waters in the eastern Pacific. However, its similarity to some morphological characteristics of and its slight genetic divergence from Octopus mimus has led to the proposal that both species are [...] Read more.
The green octopus, Octopus hubbsorum, is a merobenthic species that inhabits warm-temperate waters in the eastern Pacific. However, its similarity to some morphological characteristics of and its slight genetic divergence from Octopus mimus has led to the proposal that both species are conspecific. The objective of this study was the morphological and molecular identification of eggs and paralarvae of the green octopus, O. hubbsorum, to provide information contributing to clarifying its taxonomy and relationship with O. mimus. The results obtained show that although O. hubbsorum has similarities with O. mimus in terms of egg size, chromatophore pattern, number of suckers, and presence of Kölliker’s organs, the O. hubbsorum paralarvae observed in this study are smaller (1.6 mm) and have a thin layer of loose skin, not described for O. mimus. Likewise, the morphology of the beak, radula, and suckers of O. hubbsorum is described for the first time and there are no studies of these structures for O. mimus. The phylogenetic analysis (mitochondrial cytochrome C oxidase subunit I and III genes) showed that both species form a monophyletic clade but belong to separate subclades. In conclusion, although the slight genetic divergence between these two species suggests conspecificity, their disjoint geographic distribution (O. hubbsorum is found in warm-temperate waters and O. mimus in cold-temperate waters) suggests the hypothesis of being two separate species with a close phylogenetic relationship. However, further research (morphological and population analyses) is required to solve taxonomic uncertainty. Full article
(This article belongs to the Special Issue Cephalopod Resilience in Changing Marine Ecosystems)
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