Article
Fisheries
Erling K. Stenevik, Richard D. M. Nash, Arild Folkvord
Summary: This study suggests using a stage-based proxy to assess feeding success, growth, and potential survival or mortality risk of field-caught larvae. Observations from previous laboratory studies indicate that the relative occurrence of larvae in the late non-feeding stage can reflect their feeding conditions in the wild, with higher ratios of unsuccessful larvae indicating poor feeding success and higher mortality risk. The authors found that this novel approach could provide valuable indications of feeding success, growth, and mortality in the field, with significant interactions observed between zooplankton concentrations and ambient temperature.
JOURNAL OF FISH BIOLOGY
(2021)
Article
Marine & Freshwater Biology
Wei Shi, Shuge Sun, Yu Han, Yu Tang, Weishang Zhou, Weixia Zhang, Xueying Du, Lin Huang, Guangxu Liu
Summary: This study demonstrates that microplastics have significant effects on the fertilization success of broadcast spawning bivalves. Microplastics weaken sperm swimming performance by reducing ATP production and cell viability, leading to a decreased probability of gamete collision. Furthermore, microplastics induce oxidative stress and affect ion transport in gametes, resulting in gamete fusion failure.
AQUATIC TOXICOLOGY
(2022)
Article
Fisheries
Frolan A. Aya, Mary Jane P. Sayco, Luis Maria B. Garcia
Summary: The study found that lower stocking densities and feeding only Artemia resulted in higher survival rates and growth of early-stage silver therapon larvae. Additionally, feeding at a higher level of 5 Artemia nauplii/mL led to significantly higher body lipid contents.
AQUACULTURE RESEARCH
(2021)
Article
Biology
Yoh Iwasa, Yoichi Yusa, Sachi Yamaguchi
Summary: This paper develops an evolutionary game to examine the conditions for different life-cycle types to succeed in a seasonal environment. The study finds that planktotrophy is favored when the planktonic stages are more efficient in terms of biomass gain, while lecithotrophy or direct development is more advantageous under specific conditions.
JOURNAL OF THEORETICAL BIOLOGY
(2022)
Article
Nutrition & Dietetics
Magdalena J. M. Marschall, Sarah M. Grundmann, Denise K. Gessner, Gaiping Wen, Erika Most, Klaus Eder, Robert Ringseis
Summary: This study aimed to investigate the potential of dietary insect meal from Hermetia illucens larvae to attenuate liver steatosis and hyperlipidemia in obese Zucker rats. The study conducted a 4-week trial with obese and lean Zucker rats, replacing a portion of casein protein in the diets of obese rats with protein from HI larvae meal. Results showed that the inclusion of HI larvae meal significantly reduced liver lipid accumulation and improved dyslipidemia markers in obese rats. These findings suggest the potential of HI larvae meal as a functional food for preventing obesity-related metabolic disorders.
Article
Multidisciplinary Sciences
Teresa Stephanie Tay, Hsien Rong Samuel Lee, Mei Lin Neo
Summary: This study describes the captive spawning behavior and larval development of two tropical cowrie species, Cypraea tigris and Mauritia arabica. Both species brooded over their egg masses before hatching occurred, and larvae were collected for culture under laboratory conditions. The results represent the first comprehensive documentation of successful metamorphosis of Cypraeidae larvae, particularly M. arabica, into early-stage juvenile.
ROYAL SOCIETY OPEN SCIENCE
(2023)
Article
Agronomy
Shintaro Noda, Yasunari Miyake, Yuka Nakano, Masayuki Kogoshi, Wataru Iijima, Junichi Nakagawa
Summary: Localized management based on multipoint measurements of crops and soil is expected to improve agricultural productivity. However, the difficulties of this process include time-consuming multi-point measurements, the need for various sensors, and the unstable measurements caused by sunlight and wind. To address these issues, we have proposed a system that utilizes a robot for efficient measurements, interchangeable sensor units for various measurements, and protection from sunlight and wind to ensure stable measurements. The pilot study conducted in a cabbage field successfully demonstrated the mobility of the robot, a long operation time, and the ability to obtain both soil electrical conductivity measurements and crop imaging at multiple points. The experiment also showed improved stability in measurement conditions with the use of the sensor unit, benefiting from reduced illuminance fluctuation and minimized crop shaking caused by wind.
Article
Environmental Sciences
Rantao Zuo, Yanchang Ning, Weixiao Di, Yuqing Heqiu, Jian Song, Jun Ding, Yaqing Chang
Summary: This study investigated the effects of different lipid sources and kelp on the growth, reproductive performance, and early larval quality of sea urchin. The results showed that sea urchins fed fish oil had the best growth and reproductive performance, while those fed soybean oil performed the worst.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Fisheries
Ming-Yih Leu, Yi-Chen Hsu, Yu-Hsin Tu, Pei-Sheng Chiu, Bo-Hong Yu, Jyun-Bo Wang, Kwee Siong Tew, Pei-Jie Meng
Summary: This study provides new insights into the reproduction and early ontogeny of the Bluestreak cleaner wrasse in captivity, revealing its spawning frequency, hatching rate, and larval development process, as well as determining the optimal rearing conditions. These findings are of great importance for further research on mass-scale production of juvenile Bluestreak cleaner wrasse.
Article
Fisheries
Sabina Llamazares Vegh, Ismael E. Lozano, Marina V. Diaz, Maria I. Gomez, Sebastian Sanchez, Carlos M. Fuentes
Summary: The study found that prolonged food deprivation can result in smaller body size, anal depth, and head length in larvae, as well as lower RNA/DNA ratios and reduced swimming ability.
MARINE AND FRESHWATER RESEARCH
(2021)
Article
Microbiology
Shan Guo, Kaikun Huang, Ruixia Liu, Jing Sun, Chenghong Yin
Summary: Feeding mode is related to the gut microbiota and neurodevelopment outcomes of preterm toddlers. A cohort study found that preterm toddlers who were exclusively breastfed for over three months within the first six months showed significant improvement in language and cognitive scores at 12 and 18 months corrected age. Their gut microbiota composition resembled that of healthy term toddlers.
Article
Multidisciplinary Sciences
Yaqiu Li, Zhu Dong, Sitong Liu, Fan Gao, Jinyu Zhang, Zhendong Peng, Lixin Wang, Xiaoyan Pan
Summary: This study found that astaxanthin can improve the damage to follicles caused by BPA-induced oxidative stress, and enhance the development of cultured follicles and oocytes. Astaxanthin can increase the antioxidant capacity of follicles and oocytes, and relieve the oxidative stress induced by BPA.
SCIENTIFIC REPORTS
(2022)
Article
Fisheries
Pei-Sheng Chiu, Ming-Yih Leu
Summary: The study reported successful natural spawning of the dwarf hawkfish, Cirrhitichthys falco, and provided descriptions of embryonic and larval development stages, as well as appropriate rearing conditions. The research findings suggest that Euplotes sp. may be an important initial prey for first feeding larvae of C. falco. This study serves as a foundation for further research on successful captive breeding of C. falco and other valuable ornamental hawkfishes.
Article
Ecology
Alexander D. Meyer, Alan Hastings, John L. Largier
Summary: This study investigated the impact of vertical swimming behaviors on the dispersal of coastal marine invertebrate planktonic larvae. We found two successful categories of swimming behaviors, mean-onshore and mean-offshore, each advantageous for different types of species. This highlights the importance of considering the interaction of behavior with environmental structure and individual biology when studying dispersal in ecosystems.
Article
Agriculture, Dairy & Animal Science
Jose Francisco Bermudes-Lizarraga, Mario Nieves-Soto, Francisco Antonio Flores-Higuera, Diana Judith Lopez-Peraza
Summary: This study evaluated the effect of traditional diets (Thalassiosira weissflogii and Artemia nauplii) and two non-traditional diets based on microalgae with rotifers on the survival, development, and growth of Penaeus vannamei. The results showed that non-traditional diets B and C (composed of rotifers) had the best effect on larval survival, development, and growth.
REVISTA MVZ CORDOBA
(2023)