Habitat degradation increases interspecific trophic competition between three spiny lobster species in Seychelles

Sabino, Magali; Govinden, Rodney; Blamey, Laura K.; Grand, Fabienne Le; Sardenne, Fany; Rose, Maria; Bustamante, Paco; Bodin, Nathalie

doi:10.1016/j.ecss.2021.107368

Cited by 6 publications

(5 citation statements)

References 33 publications

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“…Removal of lipids and urea before the C and N isotope analysis is recommended to avoid biased results due to lipids being more depleted in 13 C than other tissue components and to urea being more depleted in 15 N (Li et al, 2016;Logan et al, 2008;Post et al, 2007). In this study, spiny lobsters characterised by a low fat content in the tail muscle (mean of 0.74±0.14% wet weight as reported in (Sabino et al, 2021), were analysed directly for stable isotopes (bulk δ 13 C and δ 15 N values), while δ 13 C corresponded to lipid-normalised values for all other species, and δ 15 N corresponded to urea-normalised values for shark species.…”

Section: Stable Isotope Analysismentioning

confidence: 75%

“…However, concentrations exceeding the maximum values reported in crustaceans (i.e., 95.3 µg.g -1 ww) suggest a link with the bioavailability of As in their food items. Indeed, the four crustacean species analysed here are known to feed partly on invertebrates like bivalves, while spiny lobsters have been reported to also feed on macroalgae (Sardenne et al, 2021). Although bivalves generally display low As uptake from seawater (Gómez-Batista et al, 2007;Hédouin et al, 2009), As accumulation can be very high when there is a disequilibrium between phosphorous (P) and nitrogen (N).…”

Section: Factors Influencing Trace Element Availability In Small-scal...mentioning

confidence: 96%

See 1 more Smart Citation

The role of tropical small-scale fisheries in trace element delivery for a Small Island Developing State community, the Seychelles

Sabino

Bodin²,

Govinden³

et al. 2022

Marine Pollution Bulletin

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Section: Stable Isotope Analysismentioning

confidence: 75%

Section: Factors Influencing Trace Element Availability In Small-scal...mentioning

confidence: 96%

The role of tropical small-scale fisheries in trace element delivery for a Small Island Developing State community, the Seychelles

Sabino

Bodin²,

Govinden³

et al. 2022

Marine Pollution Bulletin

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“…This subtropical species increasingly co-occurs in the resident temperate habitat of J. edwardsii (Fig. 1 ) and will likely compete for shelter and/or food 84 , 85 , particularly in resource impoverished localities 86 , such as recently formed urchin-dominated barren habitats 83 . In addition to the fact that S. verreauxi grows faster and much larger 46 , we found that it consistently matches or exceeds physiological and escape performance of J. edwardsii between 14 and 21 °C, which included higher maximum metabolic rate, aerobic scope, escape frequency and speed (Fig.…”

Section: Discussionmentioning

confidence: 99%

Metabolic plasticity improves lobster’s resilience to ocean warming but not to climate-driven novel species interactions

Oellermann

Fitzgibbon

Twiname

et al. 2022

Sci Rep

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Marine species not only suffer from direct effects of warming oceans but also indirectly via the emergence of novel species interactions. While metabolic adjustments can be crucial to improve resilience to warming, it is largely unknown if this improves performance relative to novel competitors. We aimed to identify if spiny lobsters—inhabiting a global warming and species re-distribution hotspot—align their metabolic performance to improve resilience to both warming and novel species interactions. We measured metabolic and escape capacity of two Australian spiny lobsters, resident Jasus edwardsii and the range-shifting Sagmariasus verreauxi, acclimated to current average—(14.0 °C), current summer—(17.5 °C) and projected future summer—(21.5 °C) habitat temperatures. We found that both species decreased their standard metabolic rate with increased acclimation temperature, while sustaining their scope for aerobic metabolism. However, the resident lobster showed reduced anaerobic escape performance at warmer temperatures and failed to match the metabolic capacity of the range-shifting lobster. We conclude that although resident spiny lobsters optimise metabolism in response to seasonal and future temperature changes, they may be unable to physiologically outperform their range-shifting competitors. This highlights the critical importance of exploring direct as well as indirect effects of temperature changes to understand climate change impacts.

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“…Lobster mutiara mendiami perairan yang berkarang, hidup pada celah-celah batu dan terkadang ditemukan dengan jumlah yang banyak dengan membentuk kelompok (Priyambodo et al 2020). Lobster sangat menyukai habitat seperti terumbu karang (Sabino et al 2021). Habitat dan sebaran lobster banyak ditemukan diseputaran perairan Indonesia.…”

Section: Pendahuluanunclassified

Perbandingan Kedalaman Dan Material Perangkap Post Larva Lobster Di Teluk Awang, Lombok

Wahbi,

Baskoro,

Komarudin

2023

JTPK

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Kegiatan pembesaran post larva lobster masih bergantung pada benih dari alam, sedangkan post larva yang tertangkap sedikit dan ukurannya tidak seragam. Oleh karena itu dibutuhkan alat tangkap yang efektif dan efisien. Keefektifan alat tangkap dipengaruhi oleh berbagai faktor diantaranya kedalaman pengoperasianya dan bahan pembentuk. Bahan pembentuk yang digunakan yaitu kantong semen dan kantong pakan udang. Pada kedalaman pengoperasianya dengan kedalaman 2, 4, 6, 8, 10, 12, dan 14 m. Penelitian ini bertujuan untuk membandingkan bahan perangkap yang efektif untuk menangkap post larva lobster dan mengidentifikasi kedalaman peletakan perangkap yang sesuai dengan swimming layer post larva lobster. Hasil penelitian menunjukkan bahwa pada perbandingan kedalaman perangkap pada kedalaman 14 m memberikan hasil tangkapan tertinggi yaitu 47 ekor dan terendah pada kedalaman 2 dan 4 m dengan hasil tangkapan 3 ekor, sedangkan pada perbandingan bahan pembentuk hasil tanggkapan tertinggi pada bahan kantong semen yaitu 191 ekor, sedangkan pada kantong pakan udang yaitu 188 ekor. Berdasarkan hasil penelitian menunjukkan kedalaman 14 m dan bahan kantong semen memberikan hasil tangkapan tertinggi.

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Habitat degradation increases interspecific trophic competition between three spiny lobster species in Seychelles

Cited by 6 publications

References 33 publications

The role of tropical small-scale fisheries in trace element delivery for a Small Island Developing State community, the Seychelles

The role of tropical small-scale fisheries in trace element delivery for a Small Island Developing State community, the Seychelles

Metabolic plasticity improves lobster’s resilience to ocean warming but not to climate-driven novel species interactions

Perbandingan Kedalaman Dan Material Perangkap Post Larva Lobster Di Teluk Awang, Lombok

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