Age, growth, and population structure of the red flying squid (Ommastrephes bartramii) in the North Pacific Ocean, determined from beak microstructure

Fang, Zhou; Li, Jianhua; Thompson, Katherine; Hu, Feifei; Chen, Xinjun; Liu, Bilin; Chen, Yong

doi:10.7755/fb.114.1.3

Cited by 25 publications

(24 citation statements)

References 30 publications

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“…To the best knowledge of the authors, age estimation within the genus Ommastrephes had been performed only using statoliths (Yatsu et al, 1997;Yatsu, 2000;Yatsu and Mori, 2000), and more recently through the analysis of Rostral Sagittal Section (RSS) of the beaks of Pacific O. bartramii (Liu et al, 2015;Fang et al, 2016). In our study, similarly to what was observed by Liu et al (2015) in O. bartamii, growth increments observed in the RSS of O. caroli specimens were easily visible and counted.…”

Section: Age Estimationsupporting

confidence: 75%

Molecular and Biological Analysis on Ommastrephes caroli Findings in the Central Western Mediterranean Sea (Sardinian Waters) Including First Age Investigation Using Eye Lenses and Beaks

et al. 2021

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Molecular identifications based on two mitochondrial markers (cytochrome c oxidase subunit I -COI- and 16S ribosomal RNA gene -16S-) have been implemented to confirm the morphological identification of eight specimens collected in the Central western Mediterranean. Molecular data show they belonged to a recently resurrected species of the genus Ommastrephes, i.e., O. caroli, known to be distributed in the Atlantic Ocean and Mediterranean Sea. Despite this, molecular analyses of COI sequences evidenced the presence of potential genetic differentiation between Mediterranean and Atlantic samples, highlighting the need for further studies, with more individuals to investigate the connectivity between individuals living in the two areas. Furthermore, morphological, biometric and reproductive features here reported, could be useful in evaluating possible distinctive biological features between the Mediterranean and Atlantic individuals. Female mature size was larger than the male. The relationships obtained between the beak measurements and body sizes (DML; TW) were better described by a power model. Asynchronous oocytes development with relatively small oocytes (0.05–1.10 mm) and a protracted intermittent spawning with active feeding were observed. This study also reported for the specie O. caroli the first data on the potential fecundity estimated (840061 oocytes), the oviducal load (90000 ripe oocytes) as well as the number of seminal receptacles and the size and morphology of the spermatangia found in the buccal mass of all mated females. Even if on a low sample size, beaks and eye lenses were used for the first time in O. caroli for age estimation. The statistically significant relationship found between increments counted in eye lenses and beaks highlighted the reliability of the lenses to estimate age in O. caroli, even if further studies will be needed for its validation. Assuming a daily increment for both structures, a mean life span of about 12–13 months was estimated for both sexes, which is consistent with the sexual maturity condition observed in all the samples and the semelparity known for cephalopods coleoids.

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Section: Age Estimationsupporting

confidence: 75%

Molecular and Biological Analysis on Ommastrephes caroli Findings in the Central Western Mediterranean Sea (Sardinian Waters) Including First Age Investigation Using Eye Lenses and Beaks

et al. 2021

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“…The squid L. chinensis is an Indo-Pacific species (Jereb and Roper 2007) and one of the cephalopods that are fast-growing mollusks (Aneesh et al 2014). Cephalopods are typically short-lived invertebrates and the lifespan of squid was estimated to average about 1 year (Jackson et al 1997;Jackson and Moltschaniwsky 2001;Fang et al 2016). Some tropical loliginids, including L. chinensis and Loliolus noctiluca, have been reported to have a life cycle of fewer than 200 days (Jackson et al 1997).…”

Section: Discussionmentioning

confidence: 99%

Growth aspect of squid (Loligo chinensis) from the Banyuasin Coastal Waters, South Sumatra, Indonesia

et al. 2020

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Squid (Loligo chinensis) played an important role in small scale fisheries in Banyuasin Coastal Waters, however, the information and publications were limited. This study aimed to estimate the length at first capture (LC50%), the length at first maturity (Lm), growth pattern and condition factor of L. chinensis from Banyuasin Coastal Waters of South Sumatra. The squids were observed for samples in April 2018 and March 2019 using a stationary lift net. During the observation, the squid measurement was conducted on 1179 individuals. The mantle length ranged was 40-210 mm and their body weight ranged was 2-42 gr. The value of LC50%, Lm and ½L∞ were obtained at 103 mm, 147 mm, and 110.5 mm respectively. The analysis results of the length-weight relationship (W = 0.0145L1.4618, R2 = 0.9265 and P < 0.05) showed that their growth pattern was negative allometric (b < 3). The mean relative condition factor (Kn = 1.01) above the critical value limits (K=0.56) confirmed that the environmental condition of Banyuasin Coastal Waters suitable for the L. chinensis growth. However, should be careful with their length size of the squid catch were not feasible in the capture.

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“…In other loliginids, identification methods based on analysis of the shape of the body, beak or statolith, and of beak colour, appear to be quite promising (Fang et al, 2016a, b, Green et al, 2015Jin et al, 2017;Lishchenko et al, 2017), although these methods still need to be tested on Alloteuthis.…”

Section: Alloteuthis Sppmentioning

confidence: 99%

“…In the Pacific, the age structure of O. bartramii has been described on the basis of counts of growth increments in various hard structures, which could also be applied in Atlantic Waters (Fang et al, 2016a;Liu et al, 2015). Other recent studies concern identification of beaks and statoliths recovered from predator stomachs, stock identification and migration patterns (Fang et al, 2014a, b;Fang and Chen, 2018;Fang et al, 2016c;Hu et al, 2018;Kato et al, 2016).…”

Section: Life Historymentioning

confidence: 99%

“…Moreover, the latter could provide essential information on environmental conditions experienced during the tag-bearing period. Deeper understanding of population structure and the environmental conditions experienced at different life stages could also derive from morphometric analysis of hard structures, trace-element composition analysis and molecular methods (Fang et al, 2014a(Fang et al, , b, 2016aGreen et al, 2015;Lishchenko et al, 2017;McKeown et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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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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Age, growth, and population structure of the red flying squid (Ommastrephes bartramii) in the North Pacific Ocean, determined from beak microstructure

Cited by 25 publications

References 30 publications

Molecular and Biological Analysis on Ommastrephes caroli Findings in the Central Western Mediterranean Sea (Sardinian Waters) Including First Age Investigation Using Eye Lenses and Beaks

Molecular and Biological Analysis on Ommastrephes caroli Findings in the Central Western Mediterranean Sea (Sardinian Waters) Including First Age Investigation Using Eye Lenses and Beaks

Growth aspect of squid (Loligo chinensis) from the Banyuasin Coastal Waters, South Sumatra, Indonesia

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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