Increased water temperature interrupts embryonic and larval development of Indian major carp rohu Labeo rohita

Ashaf-Ud-Doulah, Mohammad; Zahangir, Md. Mahiuddin; Islam, Sadiqul; Brown, Christopher L.; Shahjahan, Md

doi:10.1007/s10499-021-00649-x

Cited by 23 publications

(16 citation statements)

References 47 publications

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“…Recent studies showed that tilapia can tolerate temperatures of up to 34 • C without any significant effect on their growth rate [94,96]. In addition, the cortisol level, which is the stress indicator in tilapia, does not significantly increase even at 36 • C [108], which suggests that tilapia can tolerate high temperatures, whereas for L. rohita, another commonly cultured species in Bangladesh, a temperature of 36 • C may be hazardous for growth and can cause physiological damage [109][110][111]. The balanced sex ratio of O. niloticus does not deviate significantly even up to 36 • C [92].…”

Section: Temperature Fluctuationmentioning

confidence: 99%

Tilapia Farming in Bangladesh: Adaptation to Climate Change

2021

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In Bangladesh, aquaculture is critically important in terms of providing food and nutrition, sustainable livelihoods, income, and export earnings. Nevertheless, aquaculture in Bangladesh has faced recent concerns due to climate change. Aquaculture is vulnerable to a combination of climatic factors, such as global warming, rainfall variation, flood, drought, temperature fluctuation, and salinity change. Considering the vulnerability of fish production to the impacts of climate change, tilapia farming is one of the possible strategies for adaptation to climate change. The positive culture attributes of tilapia are their tolerance to low water levels and poor water quality with rainfall variation, temperature fluctuation, and salinity change. In fact, tilapia farming is possible in a wide range of water environments, including freshwater, brackish water, and saltwater conditions. We suggest that appropriate tilapia culture strategies with institutional support and collaboration with key stakeholders are needed for adaptation to environmental change.

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Section: Temperature Fluctuationmentioning

confidence: 99%

Tilapia Farming in Bangladesh: Adaptation to Climate Change

2021

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“…It is crucial for the continuation of rare sh species, high yield breeding, and sustainable development of shery resources [1]. Since a mismatched culture environment can have a signi cant impact on embryo development, mainly in terms of survival rate and malformation rate, real-time sh embryo detection results are needed to adjust the corresponding culture environment [2][3][4]. Because sh embryos are very small before they are fully developed, the traditional method is to manually operate a microscope to observe the growth of sh embryos [1].…”

Section: Introductionmentioning

confidence: 99%

FPGA-Based Real-Time Embedded Fish Embryo Detection System

Wang

Feng

Chen

et al. 2022

Mobile Information Systems

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In today’s aquaculture industry, the period of fish embryos needs to be detected in real time because different periods of fish embryos require different environments for their cultivation. The paper proposes an FPGA-based real-time embedded fish embryo detection system to solve the problems of today’s fish embryo period detection, which consumes a lot of human resources and has low accuracy. Based on the selection of YOLOv3 as the basic model, this paper combines model optimization and hardware acceleration to make the whole system achieve the effect of real-time detection. With only a 4.23% reduction in the mAP value of the model, the inference speed of the model was improved by nearly 150%. Finally, we achieved 34.1 fps of real-time fish embryo detection on a 100 MHz FPGA chip, while having 82.49% mAP, and the whole embedded system only consumed 2.524w while running. The results show that the FPGA-based real-time fish embryo detection system proposed in this paper is fully capable of meeting the needs of today’s aquaculture embedded devices. It is beneficial to promote the transformation of fish embryo analysis from traditional manual methods to AI-based embedded devices and facilitate the rapid analysis of fish embryos.

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“…Elevated water temperature resulting from global warming has caused disrupt embryonic metabolism and physiology of rohu fish. Also displayed evidence of damaged embryos and Larvae of rohu showed developmental deformities (Ashaf-Ud-Doulah et al, 2021) [3] . Temperature also changes the physiological functions associated with the stress response of fish.…”

Section: Introductionmentioning

confidence: 99%

Effects of temperature on parameters of calbasu Labeo calbasu fingerlings at laboratory condition

Islam¹,

Ashaf-Ud-Doulah²

2022

Int. J. Fish. Aquat. Stud.

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Temperature is an important environmental factor, plays significant role in the physiology of fish and aquatic ecosystem. In this study, we observed growth, hemato-biochemical parameters and water quality of calbasu, Labeo calbasu exposed to three different temperature regimes, such as 31, 34 and 37 °C respectively for 30 days. Two hundred and twenty fish were used, kept in 9 Aquarium, and were exposed to the different temperature. Highest body weight gain and lowest feed conversion ratio (FCR) was recorded at 31 °C. The highest specific growth rate was recorded at 31 °C followed by 34 °C and 37 °C. Survival at different acclimation temperatures was between 90.00±0.00, 90.0±0.00 and 88.00±0.00%, from lower to higher acclimation temperatures. Dissolved oxygen decreased and free CO2 increased significantly was found the study period. To determine the hemato-biochemical indices-hemoglobin (Hb) and blood glucose levels in the fish at each temperature. Hemoglobin (Hb) significantly decreased in response to temperature increases, while blood glucose levels displayed the opposite response. The present study revealed that high temperatures may be hazardous to Labeo calbasu.

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Increased water temperature interrupts embryonic and larval development of Indian major carp rohu Labeo rohita

Cited by 23 publications

References 47 publications

Tilapia Farming in Bangladesh: Adaptation to Climate Change

Tilapia Farming in Bangladesh: Adaptation to Climate Change

FPGA-Based Real-Time Embedded Fish Embryo Detection System

Effects of temperature on parameters of calbasu Labeo calbasu fingerlings at laboratory condition

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