Biochemical Composition and Energy Strategy Along the Reproductive Cycle of Female Octopus vulgaris in Galician Waters (NW Spain)

Sieiro, Pilar; Otero, Jaime; Aubourg, Santiago P.

doi:10.3389/fphys.2020.00760

Cited by 10 publications

(5 citation statements)

References 101 publications

(169 reference statements)

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“…However, the use of stored carbohydrates would be unusual for the embryonic stages of molluscs, although glycogen stores appear to increase during spawning in female O . vulgaris (Sieiro et al, 2020), and plays a role in the nutrition of juveniles of other octopus species (Gallardo et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

“…0.060 mg) in paralarvae over this period suggesting that carbohydrate resources (roughly 0.025 mg), that were not measured in this study, may also play an important role in resourcing paralarvae. However, the use of stored carbohydrates would be unusual for the embryonic stages of molluscs, although glycogen stores appear to increase during spawning in female O. vulgaris (Sieiro et al, 2020), and plays a role in the nutrition of juveniles of other octopus species (Gallardo et al, 2020).…”

Section: Lipid Content and Protein Contentmentioning

confidence: 99%

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Effect of hatching time and starvation on morphometrics and biochemical composition of Octopus tetricus paralarvae

Spreitzenbarth

Jeffs

2021

Aquaculture Research

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Rearing paralarvae of merobenthic octopus species from hatch to their benthic phase remains a difficult task, mainly due to unsuitable diets. Knowledge of their nutritional requirements is therefore crucial to providing appropriate diets. This study tracked changes in morphometrics and biochemical composition of Octopus tetricus paralarvae from the same brood that hatched at different times, and in starved paralarvae. Mean wet weight, dry weight, mantle length, arm length and protein content were highest in paralarvae that hatched at 0 days postfirst hatch, while the mean lipid content of paralarvae was not affected by hatching times. The mean wet weight of starving paralarvae continuously decreased, while the dry weight showed two distinctive declines between 0–1 dph and 3–5 dph. Both total length and mantle length were longest in paralarvae aged 0–1 dph compared to 4–5 dph under starving conditions. Paralarvae mean lipid content did not differ due to starving period but mean protein content decreased continuously. The most abundant fatty acids in paralarvae were DHA, EPA, palmitic acid and stearic acid across both experiments. The tendency of the protein content of developing and starved paralarvae to decline, while the overall lipid content remained largely unchanged, suggests that proteins were mainly catabolized, further indicating their importance for the formulation of artificial diets for octopus paralarvae.

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Section: Discussionmentioning

confidence: 99%

Section: Lipid Content and Protein Contentmentioning

confidence: 99%

Effect of hatching time and starvation on morphometrics and biochemical composition of Octopus tetricus paralarvae

Spreitzenbarth

Jeffs

2021

Aquaculture Research

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“…The Atlantic salmon ( Salmo salar ) smolts in the three tributaries of the West River in Vermont, USA, begin migration when the water temperature rises to 5°C, and reach peak migration when water temperature rises to 8°C (Whalen et al., 1999). Fish have specific reproduction strategies, and a suitable temperature promotes healthy egg development and ensures successful spawning (Kurita et al., 2003; Sieiro et al., 2020). For temperate or tropical fishes that spawn in spring and summer, warm winters could affect the accumulation of nutrients during egg development, resulting in smaller eggs (Collingsworth et al., 2017; T. M. Farmer et al., 2015).…”

Section: River Damming Impacts On Fish Physical Habitatmentioning

confidence: 99%

River Damming Impacts on Fish Habitat and Associated Conservation Measures

Chen,

Li,

Lin

et al. 2023

Reviews of Geophysics

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River damming has brought great benefits to flood mitigation, energy and food production, and will continue to play a significant role in global energy supply, particularly in Asia, Africa, and South America. However, dams have extensively altered global river dynamics, including riverine connectivity, hydrological, thermal, sediment and solute regimes, and the channel morphology. These alterations have detrimental effects on the quality and quantity of fish habitat and associated impacts on aquatic life. Indeed, dams have been implicated in the decline of numerous fishes, emphasizing the need for effective conservation measures. Here, we present a global synthesis of critical issues concerning the impacts of river damming on physical fish habitats, with a particular focus on key fish species across continents. We also consider current fish conservation measures and their applicability in different contexts. Finally, we identify future research needs. The information presented herein will help support sustainable dam operation under the constraints of future climate change and human needs.

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“…Cacing nipah pada penelitian ini hidup secara simpatrik dan hal ini akan berpengaruh pada kesamaan sumber energi dari makanan dan menyimpannya dalam oosit. Amat-Trigo et al, (2021) dan Sieiro et al, (2020) mengemukakan bahwa alokasi energi dapat diketahui dari protein dan lipid. Pada penelitian ini, energi diukur dengan pendekatan berbeda sehingga tidak diketahui berdasarkan kandungan protein dan lipid.…”

Section: Hasil Dan Pembahasanunclassified

Alokasi Energi, Fekunditas, dan Sintasan Larva Cacing Nipah Simpatrik (Polychaeta: Nereididae)

et al. 2022

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Two species of semelparity Nypa palm worms can only reproduce once during their lifetime lives sympatrically. This reproductive is a unique strategy for allocating energy and fecundity to maximize fertility and larval survival. Information about energy allocation and fecundity of semelparity Nypa palm worms is not yet available. This study aimed to obtain data on the strategy of two species of sympatric Nypa palm worms related to total energy allocation, fecundity, and larval survival. Energy allocation determining by the proportion between reproductive energy and somatic energy. Fecundity was calculated based on the total number of oocytes obtained from the same individual samples used for energy measurement. Larvae survival was counting the trochophore and 3-setigers larvae resulting from fertilization. Energy allocation, fecundity, and survival were analyzed descriptively. The results showed that both sympatric species allocated energy for reproduction. The fecundity of Namalycastis rhodochorde was higher than that of Namalycastis abiuma, but had lower larval survival than N. abiuma. Fecundity in N. rhodochorde is a strategy to compensate for the low survival rate. Meanwhile, N. abiuma had lower fecundity but had high larval survival. Fecundity and larval survival between the two sympatric Nypa palm worm species differed, but both allocated the same energy. Different larval survival yet similar energy allocation is their strategy to survive in the same environmental conditions. Dua spesies cacing nipah semelparitas yang hanya dapat melakukan reproduksi sekali selama hidupnya ditemukan hidup secara simpatrik. Kemampuan adaptasi ini mengindikasikan adanya strategi yang khas dalam mengalokasikan energi dan fekunditasnya sehingga dapat memaksimalkan fertilitas dan sintasan larva, namun informasi tersebut masih belum tersedia. Tujuan penelitian ini untuk mendapatkan data strategi dua spesies cacing nipah simpatrik terkait dengan alokasi energi total, fekunditas, dan sintasan larva. Alokasi energi dideterminasi dengan menghitung proporsi antara energi reproduksi dan energi somatis. Fekunditas dihitung berdasarkan jumlah total oosit yang didapatkan dari sampel individu yang sama dengan yang digunakan untuk pengukuran energi. Penghitungan sintasan dilakukan dengan menghitung jumlah larva trokofor dan larva 3-setiger hasil fertilisasi. Data alokasi energi, fekunditas, dan sintasan dianalisis secara deskriptif. Hasil penelitian menunjukkan kedua spesies simpatrik mengalokasi energi untuk reproduksi. Fekunditas Namalycastis rhodochorde lebih tinggi dibandingkan Namalycastis abiuma, namun memiliki sintasan larva yang lebih rendah dari N. abiuma. Fekunditas pada N. rhodochorde merupakan startegi untuk mengimbangi rendahnya sintasan. Sementara itu, N. abiuma memiliki fekunditas yang lebih rendah namun memiliki sintasan larva yang tinggi. Fekunditas dan sintasan larva antara kedua spesies cacing nipah simpatrik ditemukan berbeda namun keduanya mengalokasi energi yang sama. Perbedaan fekunditas dan sintasan serta persamaan alokasi energi merupakan strategi spesies simpatrik untuk dapat bertahan hidup pada kondisi lingkungan yang sama.

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Biochemical Composition and Energy Strategy Along the Reproductive Cycle of Female Octopus vulgaris in Galician Waters (NW Spain)

Cited by 10 publications

References 101 publications

Effect of hatching time and starvation on morphometrics and biochemical composition of Octopus tetricus paralarvae

Effect of hatching time and starvation on morphometrics and biochemical composition of Octopus tetricus paralarvae

River Damming Impacts on Fish Habitat and Associated Conservation Measures

Alokasi Energi, Fekunditas, dan Sintasan Larva Cacing Nipah Simpatrik (Polychaeta: Nereididae)

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