Multilevel effects of long-term elevated temperature on fitness related traits of the sea urchin <i> Strongylocentrotus intermedius</i>

Zhao, Chong; Zhang, Lisheng; Qi, Shoubing; Shi, Dongtao; Yin, Donghong; Chang, Yaqing

doi:10.5343/bms.2017.1180

Cited by 11 publications

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“…Sin embargo, el peso del organismo completo y de las estructuras calcificadas (linterna de Aristóteles y caparazón) no difirieron entre tratamientos. En Strongylocentrotus intermedius se encontraron resultados similares; es decir, no se observó efecto de la temperatura en individuos expuestos en tiempos de seis semanas a cuatro meses, sin embargo, sí se observó en individuos expuestos durante diez meses (Zhao et al, 2018). De esta forma, en el presente trabajo se corroboró que el tiempo de respuesta de los diferentes órganos depende del tiempo del estímulo y la función y naturaleza de este.…”

Section: Discussionunclassified

“…Al analizar la mortalidad durante el experimento, se observó que la temperatura afectaría el porcentaje de supervivencia dado que los tratamientos de mayor temperatura presentaron los valores más altos de mortalidad (duplicando al control). En otras especies como Strongylocentrotus franciscanus, Arbacia lixula, Heliocidaris erythrogramma, S. intermedius la mortalidad también es afectada por la temperatura en experimentos de laboratorio (Hernández et al, 2004;Harianto, Nguyen, Holmes & Byrne, 2018;Sastre-Perelló, 2018;Zhao et al, 2018). En este trabajo, A. dufresnii presentó similar deterioro que el descripto por Sastre-Perelló (2018) en A. lixula expuesto a diferentes tratamientos de temperatura, donde los individuos parecen estar enfermos, mostrando un deterioro de la epidermis y del sistema ambulacral, resultando en necrosis epidérmica y la liberación de espinas, dando lugar finalmente a la muerte del individuo.…”

Section: Discussionunclassified

“…En el intestino de A. dufresnii, se observaron mayores valores de carbohidratos que lípidos en su composición bioquímica evidenciando el rol de almacenamiento de nutrientes (Epherra, 2010). El efecto de la temperatura sobre el peso intestinal se ha observado en Lytechinus variegatus; S. intermedius, P. lividus y A. lixula, reduciéndose probablemente la capacidad de almacenamiento de nutrientes (Watts et al, 2011;Sastre-Perelló, 2018;Zhao et al, 2018). Por su lado, las gónadas cumplen un doble rol, puesto que generan gametos y almacenan nutrientes a más largo plazo que el intestino (Walker, 1982;Hughes et al, 2006;Walker, Lesser & Unuma, 2013).…”

Section: Discussionunclassified

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Efecto de la temperatura sobre la morfología y reproducción en el erizo de mar Arbacia dufresnii (Echinodermata: Echinoidea)

Ancin¹,

Epherra²,

Rubilar³

2021

RBT

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Introducción: El aumento de los valores del CO2 atmosférico y el consecuente calentamiento del agua de mar constituyen factores de estrés para los ecosistemas marinos, renovando el interés en la fisiología de los equinoideos. El equinoideo Arbacia dufresnii es una especie ampliamente estudiada y con amplia distribución en los golfos norpatagónicos. Objetivo: Evaluar el efecto de temperatura del agua de mar sobre su morfología y reproducción. Métodos: Individuos de A. dufresnii fueron expuestos durante 10 semanas (Abril-Junio 2016) a tres tratamientos de temperatura (13 °C control, 15 °C y 17 °C) de acuerdo con las condiciones actuales del agua de mar y los valores esperados para el próximo siglo, según diferentes escenarios estimados. Al finalizar el experimento, diámetro y peso del individuo así como los pesos de los órganos internos fueron estadística e histológicamente analizados. Resultados: Se observó una mayor mortalidad en los individuos expuestos a las mayores temperaturas lo que podría deberse a un estrés en el individuo. Para el tratamiento control y el de 17 °C no se observaron cambios en los pesos secos de gónadas e intestino. En cambio, los individuos expuestos a 15 °C presentaron un aumento en el diámetro del caparazón y en el peso seco de gónadas e intestino. Los estadios gonadales aesta temperatura (15 °C) para machos fueron similares al ambiente a diferencia de las hembras que se observaron estadios más avanzados. Conclusiones: Esto indicaría que 15 °C podría ser la temperatura óptima para la asimilación del alimento y obtención de energía. A esta temperatura se observan cambios a corto plazo en los órganos de metabolismo rápido pero no en los órganos calcificados (caparazón y linterna de Aristóteles).

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Section: Discussionunclassified

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Efecto de la temperatura sobre la morfología y reproducción en el erizo de mar Arbacia dufresnii (Echinodermata: Echinoidea)

Ancin¹,

Epherra²,

Rubilar³

2021

RBT

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“…Although shelters significantly improved the survival of small sea urchins Strongylocentrotus purpuratus (Clemente et al, 2013), the body size of sea urchins in the shelter conditions was significantly smaller (Zhao, Bao & Chang, 2016). Long-term laboratory experiments are essential to evaluate the trade-off between fitness benefits and costs (Zhao et al, 2018a;Dupont et al, 2013). Our previous study investigated fitness related traits of G. crenularis in shelter conditions for a duration of~2.5 years (Zhao, Bao & Chang, 2016).…”

Section: Discussionmentioning

confidence: 99%

Fitness benefits and costs of shelters to the sea urchin Glyptocidaris crenularis

Chi

Sun

et al. 2020

PeerJ

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Understanding the ecological role of shelters is greatly hampered by the scarcity of long-term laboratory experiments on the trade-off between fitness benefits and costs. This lack probably leads to an underestimation of the negative and/or positive effects on behaviors and growth of marine invertebrates in benthic ecosystems. Although our previous study revealed a significant effect on fitness-related traits of Glyptocidaris crenularis after 31 months, the present study extended it and investigated fitness benefits and/or costs of long-term sheltering on sea urchins to over 7 years. The present long-term study suggests that the previously reported reduction in feeding rate probably resulted from a reduction in reflexive feeding motions (Aristotle’s lantern reflex) rather than changes in foraging behavior. Actively seeking sheltering behavior was negatively impacted in individuals with continuous access to shelters. However, covering and righting behaviors did not differ in sheltered sea urchins, indicating that these behaviors are maintained to escape from adverse environments regardless of shelter. Body size of sea urchins in the group with shelters was significantly lower than those without shelters after 7 years. Weights of gonads and gut were not significantly different after 7 years despite previous observations of differences after ~2.5 years. The present study provides valuable information on the trade-off between fitness benefits and costs to sea urchins residing in shelters. However, the present study is only a laboratory investigation for one urchin species (G. crenularis) which does not consider the complexity of natural environments. Field studies should be carried out with G. crenularis and other sea urchin species, before a more universal conclusion can be drawn.

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“…At higher temperatures (+3 • C) than control (20 • C), the test diameter of Yellow Sea's adults decreased by 2 mm as did the mean body weight by about 3 g after 10 months of exposure (Zhan et al, 2016;Zhao et al, 2018a). The mortality rate also increased linearly with increasing temperature (+9% mortality vs. control), indicating a relevant stress condition (Zhang et al, 2017;Zhao et al, 2018a). After 6 weeks of exposure at 22 • C, gonad weight and gonad index significantly decreased from an average of 13-9.5 g compared with control (20 • C; but not after 10 months in Zhao et al, 2018a), most likely due to a lower food conversation ratio at high temperatures (Zhao et al, 2016).…”

Section: Benthic Life Stagesmentioning

confidence: 93%

How ocean warming and acidification affect the life cycle of six worldwide commercialised sea urchin species: A review

Olivier

Chauvaud

Tremblay

2023

Aquaculture Fish & Fisheries

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Ongoing global changes are expected to affect the worldwide production of many fisheries and aquaculture systems. Because invertebrates represent a relevant industry, it is crucial to anticipate challenges that are resulting from the current environmental alterations. In this review, we rely on the estimated physiological limits of six commercialised species of sea urchins (Loxechinus albus, Mesocentrotus franciscanus, Paracentrotus lividus, Strongylocentrotus droebachiensis, Strongylocentrotus intermedius and Strongylocentrotus purpuratus) to define the vulnerability (or resilience) of their populations facing ocean warming and acidification (OW&A). Considering that coastal systems do not change uniformly and that the populations’ response to stressors varies depending on their origin, we investigate the effects of OW&A by including studies that estimate future environmental mutations within their distribution areas. Cross‐referencing 79 studies, we find that several sea urchin populations are potentially vulnerable to the predicted OW&A as environmental conditions in certain regions are expected to shift beyond their estimated physiological limit of tolerance. Specifically, while upper thermal thresholds seem to be respected for L. albus along the SW American coast, M. franciscanus and S. purpuratus southern populations appear to be vulnerable in NW America. Moreover, as a result of the strong warming expected in the Arctic and sub‐Arctic regions, the local productivity of S. droebachiensis is also potentially largely affected. Finally, populations of S. intermedius and P. lividus found in northern Japan and eastern Mediterranean respectively, are supposed to decline due to large environmental changes brought about by OW&A. This review highlights the status and the potential of local adaptation of a number of sea urchin populations in response to changing environmental conditions, revealing possible future challenges for various local fishing industries.

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Multilevel effects of long-term elevated temperature on fitness related traits of the sea urchin Strongylocentrotus intermedius

Cited by 11 publications

References 0 publications

Efecto de la temperatura sobre la morfología y reproducción en el erizo de mar Arbacia dufresnii (Echinodermata: Echinoidea)

Efecto de la temperatura sobre la morfología y reproducción en el erizo de mar Arbacia dufresnii (Echinodermata: Echinoidea)

Fitness benefits and costs of shelters to the sea urchin Glyptocidaris crenularis

How ocean warming and acidification affect the life cycle of six worldwide commercialised sea urchin species: A review

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