Expansion of the geographical distribution of the Caribbean reef octopus (Octopus briareus) to the Gulf of Mexico

Ponce-Márquez, Marco Antonio; Gamboa-Álvarez, Miguel Ángel; Rosa-Castillo, Julio Enrique De la; López-Rocha, Jorge A.; Rosas, Carlos

doi:10.7773/cm.v46i3.3133

Cited by 2 publications

(1 citation statement)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, several experimental studies have shown potential deleterious effects of climate change for a wide array of cephalopod species, including octopuses (Repolho et al, 2014;Rosa et al, 2019), squid (Rosa and Seibel, 2008;Rosa et al, 2012;, and cuttlefishes (Rosa et al, 2013;Moura et al, 2019;Otjacques et al, 2020). At the same time, distribution shifts associated with climate forcing have already been observed for several octopuses (Ramos et al, 2014;Arreguıń-Sańchez, 2019;Ponce-Maŕquez et al, 2020), and other cephalopod groups (Golikov et al, 2013;Alabia et al, 2020;Oesterwind et al, 2022), suggesting a broad redistribution of cephalopod species over the coming decades as they seek suitable environmental conditions (Xavier et al, 2016;Rosa et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Projecting future climate change impacts on the distribution of the ‘Octopus vulgaris species complex’

et al. 2022

View full text Add to dashboard Cite

IntroductionHistorically considered to be a single cosmopolitan species, the so called Octopus vulgaris species complex (OVSC) is now recognized to be a group of (at least) six cryptic species: O. americanus (in the west Atlantic), O. vulgaris (in the northeast Atlantic and Mediterranean Sea), O. aff. vulgaris (in the region of South Africa), O. tetricus (southeastern Oceania), O. sinensis (northwestern Pacific), and O. djinda (western Australia). The potentially different environmental preferences of this highly cryptic species complex may result in distinct consequences under future environmental conditions.MethodsThe present study employed species distribution models (SDM) using MaxEnt to investigate potential changes in habitat suitability and geographical distribution of the OVSC in the future (i.e., 2050, and 2100), across four representative concentration pathway scenarios (RCP-2.6, 4.5, 6.0, and 8.5, CMIP5).ResultsDifferential responses were observed in the OVSC species analyzed. Specifically, O. vulgaris and O. tetricus exhibited a severe loss in distribution across their predicted range; O. americanus exhibited projected extirpation close to the equator, with limited expansion towards the poles; O. aff. vulgaris was projected to lose half of its current distribution; O. sinensis exhibited moderate losses, with projected increases in northern areas; and finally, O. djinda exhibited limited losses to its distribution. Except for O. sinensis, increasing RCP severity exacerbated changes in mean habitat suitability and projected distribution gains and losses.DiscussionUltimately, this study provides information on the potential biogeographical effects of marine climate change on a key worldwide ecological and economic resource to further disentangle the effects over each OVSC species, with the goal of assisting toward the sustainable management of octopus species at the global scale.

show abstract

Section: Introductionmentioning

confidence: 99%

Projecting future climate change impacts on the distribution of the ‘Octopus vulgaris species complex’

et al. 2022

View full text Add to dashboard Cite

show abstract

Climate-Change Impacts on Cephalopods: A Meta-Analysis

Borges

Sampaio

Santos

et al. 2023

Integrative and Comparative Biology

View full text Add to dashboard Cite

Aside from being one of the most fascinating groups of marine organisms, cephalopods play a major role in marine food webs, both as predators and as prey, while representing key living economic assets, namely for artisanal and subsistence fisheries worldwide. Recent research suggests that cephalopods are benefitting from ongoing environmental changes and the overfishing of certain fish stocks (i.e., of their predators and/or competitors), putting forward the hypothesis that this group may be one of the few ‘winners’ of climate change. While many meta-analyses have demonstrated negative and overwhelming consequences of ocean warming (OW), acidification (OA), and their combination (OWA) for a variety of marine taxa, such a comprehensive analysis is lacking for cephalopod molluscs. In this context, the existing literature was surveyed for peer-reviewed articles featuring the sustained (≥24h) and controlled exposure of cephalopod species (Cephalopoda Class) to these factors, applying a comparative framework of mixed-model meta-analyses (784 control-treatment comparisons, from 47 suitable articles). Impacts on a wide set of biological categories at the individual level (e.g., survival, metabolism, behaviour, cell stress, growth) were evaluated and contrasted across different ecological attributes (i.e., taxonomic lineages, climates, and ontogenetic stages). Contrary to what is commonly assumed, OW arises as a clear threat to cephalopods, while OA exhibited more restricted impacts. In fact, OW impacts were ubiquitous across different stages of ontogeny, taxonomical lineages (i.e., octopuses, squids, and cuttlefishes). These results challenge the assumption that cephalopods benefit from novel ocean conditions, revealing an overarching negative impact of OW in this group. Importantly, we also identify lingering literature gaps, showing that most studies to date focus on OW and early life stages of mainly temperate species. Our results raise the need to consolidate experimental efforts in a wider variety of taxa, climate regions, life stages, and other key environmental stressors such as deoxygenation and hypoxia, to better understand how cephalopods will cope with future climate change.

show abstract

Expansion of the geographical distribution of the Caribbean reef octopus (Octopus briareus) to the Gulf of Mexico

Cited by 2 publications

References 22 publications

Projecting future climate change impacts on the distribution of the ‘Octopus vulgaris species complex’

Projecting future climate change impacts on the distribution of the ‘Octopus vulgaris species complex’

Climate-Change Impacts on Cephalopods: A Meta-Analysis

Contact Info

Product

Resources

About