Weight-Length Relationships and Relative Growth of the Cuttlefish (Sepia officinalis): Causes and Effects of Hypoallometry

Vasconcelos, Paulo; Pereira, Fábio; Carvalho, André N.; Gaspar, Miguel B.

doi:10.1007/s41208-018-0067-0

Cited by 9 publications

(9 citation statements)

References 26 publications

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“…3a-c). Vasconcelos et al [23] also describe this sexual dimorphism for S. officinalis in the Algarve coast (southern Portugal). On the other hand, the gonadosomatic index allowed comparison of gonadal development with the cuttlebone measurements that presented differences between sexes, revealing that the faster growth in width of female cuttlebone is related to an increase in gonadal mass.…”

Section: Discussionmentioning

confidence: 79%

Cuttlebone morphometrics and sex identification of Sepia bertheloti (d’Orbigny, 1835) from the central-east Atlantic

et al. 2019

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Analysis of 322 cuttlebones of Sepia bertheloti caught in the waters of the Northwest Africa showed significant differences in growth between males and females. Morphometric analysis revealed a relatively different cuttlebone growth pattern between sexes, with males presenting faster growth in length to reach larger sizes and females displaying greater growth in width. This difference in cuttlebone growth is related to female gonadal development and the subsequent increase of the paleal cavity, providing more support and space to accommodate a higher number of oocytes.

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Section: Discussionmentioning

confidence: 79%

Cuttlebone morphometrics and sex identification of Sepia bertheloti (d’Orbigny, 1835) from the central-east Atlantic

et al. 2019

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“…4), which makes sense given their close phylogenetic relationship 28,68 and bordering range proximity (e.g. SE Mediterranean Sea -Gulf of Suez/Red Sea) [69][70][71] .…”

Section: Discussionmentioning

confidence: 99%

Social Media and citizen science provide valuable data for behavioural ecology research: Are cuttlefish using pursuit-deterrent signals during hunting?

Gordon

Pugh

Cooke

2019

Preprint

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Obtaining robust, analysable data sets from wild marine animals is fraught with difficulties, dangers, expense, often without success. Scientists are becoming increasingly reliant on citizen scientists to help fill in gaps where they exist, especially in the area of biodiversity. Here, uniquely, we use social media and citizen science videos to investigate the behavioural ecology of hunting in five cuttlefish species -Metasepia pfefferi (N = 24), Sepia apama (N = 13), Sepia latimanus (N = 8), Sepia officinalis (N = 17), and Sepia pharaonis (N = 23). We find that hunting strategies and prey type differ between species as do the types of behaviours used by the five species studied here. We also use kinematic permutation analysis to elucidate chains of behaviours, finding that cuttlefish significantly use a mixture of predator behaviours but also prey-like behaviours, such as warning signals and possibly even a 'pursuit-deterrent signal' during the final moments of hunting. We also show and discuss significant intraspecific differences.

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“…A slower relative growth rate in weight than in length (scaling exponent b<3) was reported, which is a common feature of short-lived species (Torres et al, 2017). Vasconcelos et al (2018) concluded that this feature is the result of high feeding rate and high food conversion efficiency. A broader cuttlebone and greater energy investment in the development of the reproductive organs were assumed to be the main cause for higher relative weight gain in females (b = 2.696) than in males (b = 2.588).…”

Section: Life Historymentioning

confidence: 99%

“…Weight-length relationships were studied in common cuttlefish from Southern Portugal (Vasconcelos et al, 2018). A slower relative growth rate in weight than in length (scaling exponent b<3) was reported, which is a common feature of short-lived species (Torres et al, 2017).…”

Section: Life Historymentioning

confidence: 99%

A review of recent studies on the life history and ecology of European cephalopods with emphasis on species with the greatest commercial fishery and culture potential

et al. 2021

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With the depletion of many commercial fish stocks and an increasing demand for marine protein for human consumption, cephalopods have become more important as a fishery resource. In EU waters, cephalopod stocks are not routinely assessed and exploitation of these species by large-scale fisheries is largely unregulated. For sustainable exploitation, adequate assessment and scientifically-supported management strategies are needed. However, there is still a lack of data on stock status and inadequate knowledge of the life history and ecology of these species. The present review examined more than 200 scientific articles, on life history and ecology of European cephalopods, published since 2013. It describes recent contributions to knowledge in the context of previously identified research priorities, along with recent advances towards sustainable fishing and aquaculture. It also identifies outstanding knowledge gaps. While some priority areas, such as the development of the species identification guides and evaluation of climate change impacts on cephalopods, have seen significant advances, other challenges remain for the future. These include monitoring of the life history traits and fishery status for the main commercially exploited species in the area, implementation of improved species identification methods during scientific surveys and fisheries monitoring, development of tools to identify stock units, and the study of the environmental and anthropogenic impacts on the stocks of cephalopods inhabiting European waters.

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Weight-Length Relationships and Relative Growth of the Cuttlefish (Sepia officinalis): Causes and Effects of Hypoallometry

Cited by 9 publications

References 26 publications

Cuttlebone morphometrics and sex identification of Sepia bertheloti (d’Orbigny, 1835) from the central-east Atlantic

Cuttlebone morphometrics and sex identification of Sepia bertheloti (d’Orbigny, 1835) from the central-east Atlantic

Social Media and citizen science provide valuable data for behavioural ecology research: Are cuttlefish using pursuit-deterrent signals during hunting?

A review of recent studies on the life history and ecology of European cephalopods with emphasis on species with the greatest commercial fishery and culture potential

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