Common, curled or miscellaneous: The need for species-specific recordings of octopuses to inform stock assessments

Barrett, Chris J; Bradley, K.; Brazier, A.

doi:10.1016/j.marpol.2023.105632

Cited by 2 publications

(6 citation statements)

References 11 publications

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“…The work of Barrett et al. (2023) has also discounted the likelihood of the existence of other octopus species, such as the musky octopus ( Eledone moschata ), implying that the recorders of octopuses (such as fishers or scientists) need to only focus on E . cirrhosa and O .…”

Section: Discussionmentioning

confidence: 99%

“…Since O . vulgaris has been rare, records are once again appearing from the warmer waters of southwest England (Barrett et al., 2023). Further, a UK fishery for octopus appears to be establishing and whilst landed quantities of octopus (species not specified) have not differed greatly between 2011 (236.73 t) and 2021 (223.58 t), (Marine Management Organisation, 2022), the value has noticeably increased (2011—£199,637; 2021—£500,662); (Marine Management Organisation, 2022), implying a greater price per kilo, thereby reflecting a growing demand for octopus.…”

Section: Introductionmentioning

confidence: 99%

“…Conversely, E . cirrhosa is being detected around the entire UK (Barrett et al., 2023). Uncertainty, or assumptions, in landings means that records may not be entirely accurate; E .…”

Section: Introductionmentioning

confidence: 99%

“…cirrhosa tends to have a single row of suckers down each arm, whereas O . vulgaris has two sucker sets down each arm (Barrett et al., 2023). Furthermore, the name of ‘common octopus’ for O .…”

Section: Introductionmentioning

confidence: 99%

“…vulgaris is misleading in waters around the UK, given the more commonly encountered species, E . cirrhosa (Barrett et al., 2023).…”

Section: Introductionmentioning

confidence: 99%

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Happy families? Insight into the coexistence between the curled octopus (Eledone cirrhosa) and common octopus (Octopus vulgaris) in waters around the UK

Barrett,

Brazier

2024

Marine Ecology

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This case study investigated the co‐occurrence of the curled octopus (Eledone cirrhosa) and common octopus (Octopus vulgaris), in waters around the United Kingdom. The findings suggest that coexistence may be maintained because of the lack of competition for E. cirrhosa against the seemingly declining O. vulgaris populations, and that habitat and temporal partitioning are the likely mechanisms. It is contemplated whether species misidentification may an important factor in masking the accuracy of population dynamics of co‐occurring octopus species, and, as such, potential uncertainty in octopus coexistence and any future fishery management decisions. It is confidently suggested that, currently, only two octopus species are resident to UK waters. Now, further studies should include diet partitioning to determine whether diet partitioning is a mechanism for E. cirrhosa and O. vulgaris coexistence, and monitoring may make us understand their population dynamics.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Conversely, E . cirrhosa is being detected around the entire UK (Barrett et al., 2023). Uncertainty, or assumptions, in landings means that records may not be entirely accurate; E .…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…vulgaris is misleading in waters around the UK, given the more commonly encountered species, E . cirrhosa (Barrett et al., 2023).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Happy families? Insight into the coexistence between the curled octopus (Eledone cirrhosa) and common octopus (Octopus vulgaris) in waters around the UK

Barrett,

Brazier

2024

Marine Ecology

Self Cite

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Considerations for implementing regulation of decapods in science

Powell,

Agnalt,

Heasman

et al. 2024

Anim. welf.

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Decapod crustaceans, commonly utilised for pure or applied scientific research and commercial food production, have generally remained outside ethical debate. However, in the last decade many parts of the world have seen an increase in public interest in the welfare of decapod crustaceans and statutory legal protection has been introduced in several countries. Although still limited to a small number of countries and remaining relatively unharmonised, relevant legislation could be increasingly broadened to include decapods in further jurisdictions. Much existing legislation, originally intended for protecting terrestrial vertebrates during scientific study, might be unsuitable for aquatic invertebrates such as decapods. Indeed, precedence with many fish species and cephalopods suggests detail is lacking with respect to fundamental guidance. Therefore, similar inclusion of decapods into such legislation could make welfare or scientific goals more challenging to achieve unless relevant guidance is available, particularly to animal care practitioners. This horizon paper aims to summarise existing decapod legislation, and the considerations required should decapods be included in current conceptual frameworks and scientific legislation.

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Common, curled or miscellaneous: The need for species-specific recordings of octopuses to inform stock assessments

Cited by 2 publications

References 11 publications

Happy families? Insight into the coexistence between the curled octopus (Eledone cirrhosa) and common octopus (Octopus vulgaris) in waters around the UK

Happy families? Insight into the coexistence between the curled octopus (Eledone cirrhosa) and common octopus (Octopus vulgaris) in waters around the UK

Considerations for implementing regulation of decapods in science

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