Bioluminescent flashes drive nighttime schooling behavior and synchronized swimming dynamics in flashlight fish.

08:00 EDT 14th August 2019 | BioPortfolio

Summary of "Bioluminescent flashes drive nighttime schooling behavior and synchronized swimming dynamics in flashlight fish."

Schooling fishes, like flocking birds and swarming insects, display remarkable behavioral coordination. While over 25% of fish species exhibit schooling behavior, nighttime schooling has rarely been observed or reported. This is due to vision being the primary modality for schooling, which is corroborated by the fact that most fish schools disperse at critically low light levels. Here we report on a large aggregation of the bioluminescent flashlight fish Anomalops katoptron that exhibited nighttime schooling behavior during multiple moon phases, including the new moon. Data were recorded with a suite of low-light imaging devices, including a high-speed, high-resolution scientific complementary metal-oxide-semiconductor (sCMOS) camera. Image analysis revealed nighttime schooling using synchronized bioluminescent flashing displays, and demonstrated that school motion synchrony exhibits correlation with relative swim speed. A computer model of flashlight fish schooling behavior shows that only a small percentage of individuals need to exhibit bioluminescence in order for school cohesion to be maintained. Flashlight fish schooling is unique among fishes, in that bioluminescence enables schooling in conditions of no ambient light. In addition, some members can still partake in the school while not actively exhibiting their bioluminescence. Image analysis of our field data and model demonstrate that if a small percentage of fish become motivated to change direction, the rest of the school follows. The use of bioluminescence by flashlight fish to enable schooling in shallow water adds an additional ecological application to bioluminescence and suggests that schooling behavior in mesopelagic bioluminescent fishes may be also mediated by luminescent displays.


Journal Details

This article was published in the following journal.

Name: PloS one
ISSN: 1932-6203
Pages: e0219852


DeepDyve research library

PubMed Articles [6631 Associated PubMed Articles listed on BioPortfolio]

A brief review of bioluminescent systems (2019).

Despite being widely used in reporter technologies, bioluminescent systems are largely understudied. Of at least forty different bioluminescent systems thought to exist in nature, molecular components...

Ethnic Differences in Nighttime Melatonin and Nighttime Blood Pressure: A Study in European Americans and African Americans.

Ethnic differences in nighttime blood pressure (BP) have long been documented with African Americans (AAs) having higher BP than European Americans (EAs). Recently, lower nighttime melatonin, a key re...

Toxicity of BDE-47, BDE-99 and BDE-153 on swimming behavior of the unicellular marine microalgae Platymonas subcordiformis and implications for seawater quality assessment.

Polybrominated diphenyl ethers (PBDEs), a class of brominated flame retardants, have been extensively applied and eventually leached into the surrounding environment. Marine microalgae are not only th...

Efficacy of a Homeopathic Medicine of Capsicum frutescens L. (Solanaceae) in the Treatment of Hot Flashes in Menopausal Women: A Phase-2 Randomized Controlled Trial.

 Hot flashes are common in women during menopause, and are an important cause of discomfort, increasing the number of medical appointments. Hormone replacement therapy is an effective treatment, but...

Managing vasomotor symptoms in women after cancer.

Women with estrogen-sensitive cancer or survivors of these neoplasms are generally not candidates for systemic menopausal hormone therapy or tibolone for the treatment of bothersome vasomotor symptoms...

Clinical Trials [2724 Associated Clinical Trials listed on BioPortfolio]

Swimming Pool Environment Impact on the Human Respiratory Health

This study aims to assess the influence of exposure to swimming pool environment on respiratory symptoms and diseases, and on cancer outcomes among swimmers and swimming pool attendants.

Winter-Swimming and Brown Adipose Tissue Activity in Middel-aged Obese Subjects (WinterBAT).

This study investigates repetitive cold-water exposure on brown fat activity assessed by infrared thermography imagine. Furthermore we will assess glucose control upon winter-swimming. Obe...

Short Term Effects of Synchronized vs. Non-synchronized NIPPV in Preterm Infants. A Randomized Crossover Study.

Comparing the cardio-respiratory adaptation and differences to non invasive ventilation techniques, nasal intermittent positive pressure ventilation (NIPPV) non synchronized vs synchronize...

Solifenacin Compared to Clonidine for Reducing Hot Flashes Among Breast Cancer Patients

Hot flashes present a considerable problem for many breast cancer patients; these symptoms may be intensified by hormonal therapies, such as aromatase inhibitors or tamoxifen. This study...

Flaxseed for the Treatment of Hot Flashes

Flaxseed, a phytoestrogen, is a natural food supplement rich in plant ligands, which have a very weak estrogen effect. In this study, flaxseed is being evaluated in regard to its capacity ...

Medical and Biotech [MESH] Definitions

A form of behavior which leads to self-assertion; it may arise from innate drives and/or a response to frustration; may be manifested by destructive and attacking behavior, by covert attitudes of hostility and obstructionism, or by healthy self-expressive drive to mastery. (Dorland 27th ed)

Excavations or containment structures filled with water and used for swimming.

A moderate-growing, photochromogenic species found in aquariums, diseased fish, and swimming pools. It is the cause of cutaneous lesions and granulomas (swimming pool granuloma) in humans. (Dorland, 28th ed)

A state of internal activity of an organism that is a necessary condition before a given stimulus will elicit a class of responses; e.g., a certain level of hunger (drive) must be present before food will elicit an eating response.

An activity in which the body is propelled through water by specific movement of the arms and/or the legs. Swimming as propulsion through water by the movement of limbs, tail, or fins of animals is often studied as a form of PHYSICAL EXERTION or endurance.

Quick Search

DeepDyve research library

Relevant Topic

Complementary and Alternative Medicine
Alternative medicine are whole medical systems that did not fit with conventional medicine as they have completely different philosophies and ideas on the causes of disease, methods of diagnosis and approaches to treatment. Although often overlapping, co...

Searches Linking to this Article