Electric discharges of two species of stargazers from the South China Sea (Uranoscopidae, Perciformes)

Барон, В. Д.

doi:10.1134/s0032945209110058

Cited by 12 publications

(6 citation statements)

References 8 publications

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“…Uranoscopidae family contains approximately 50 fish species living mainly in warm-water and temperate zones (Baron, 2009). The teleosts with an electric organ are two genera of the perciform family Uranoscopidae: Astroscopus and Uranoscopus, Linnaeus (Bennett, 1971;Moller, 1995).…”

Section: Introductionmentioning

confidence: 99%

Age, growth and mortality rates of discard species (Uranoscopus scaber, Neogobius melanostomus and Gobius niger) in the Black Sea

Kasapoğlu

2016

EgeJFAS

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Uranoscopus scaber, Neogobius melanostomus and Gobius niger are called non-commercial fish species and also caught as discarded in Turkish fisheries. Samplings were carried out by bottom trawl, gillnet, purse seine net operations in the Turkish Black Sea coasts. The results of the study showed that age of these species were 0-V ages for Uranoscopus scaber and Gobius niger, and 0-VII ages for Neogobius melanostomus for both sexes. The von Bertalanffy growth parameters, total mortality rate (Z), natural mortality rate (M) and fishing mortality rate (F) were calculated for each species separately. Keywords: Age, growth, mortality rates, Uranoscopus scaber Neogobius melanostomus, Gobius nigerÖz: Uranoscopus scaber, Neogobius melanostomus ve Gobius niger Türkiye balıkçılığında ekonomik olmayan balıklar olarak adlandırılmakta ve ıskarta edilmektedirler. Bu çalışmanın örnekleri Karadeniz kıyısında kullanılan dip trolü, uzatma ağı ve gırgır ağları ile avlanmıştır. Bu çalışmadan elde edilen sonuçlar, Uranoscopus scaber ve Gobius niger türünün yaşlarının 0-V arasında, Neogobius melanostomus türünün ise 0-VII yaş arasında değiştiğini göstermiştir. Von Bertalanffy büyüme parametreleri, toplam ölüm oranları, doğal ölüm oranları ve balıkçılık ölüm oranları ise her tür için ayrı ayrı hesaplanmıştır.

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Section: Introductionmentioning

confidence: 99%

Age, growth and mortality rates of discard species (Uranoscopus scaber, Neogobius melanostomus and Gobius niger) in the Black Sea

Kasapoğlu

2016

EgeJFAS

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“…Electroreception was unknown at the time, but electric organs for stunning prey were well known. Living species with electric organs mostly also possess electroreceptors, although stargazers (Uranoscopidae) are an exception to this rule, having electric organs but no electroreceptors (Baron ).…”

Section: Jawless Stem Gnathostomesmentioning

confidence: 99%

Electroreception in early vertebrates: survey, evidence and new information

King

Long

2018

Palaeontology

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Electroreception is widespread in living vertebrates, and is often considered to be a primitive vertebrate character. However, the early evolution of electroreception remains unclear. A variety of structures in early vertebrate fossils have been put forward as potential electroreceptors, but these need to be reassessed in light of the now substantial literature on electroreceptors in living vertebrates. Here we review the evidence for all putative electroreceptors in early vertebrates, and provide new information from CT scans. In the jawless osteostracans, the pore canal system in the dermal skeleton and the lateral and dorsal fields do not resemble electroreceptors in living species. Nevertheless, the presence of a recurrent ramus of the anterior lateral line nerve in osteostracans suggests that electroreceptors were present, by comparison with lampreys. In placoderms, cutaneous sense organs on arthrodire cheek plates are possible electroreceptors. CT data shows that the orientation of these pits is anomalous for electroreceptors, and intimately associated with bone growth. A newly identified type of cheek pit, for which the term 'Young's apparatus' is introduced, is known from only two arthrodire specimens. It is closely associated with the underlying jaw joint, but its precise function is unknown. In osteichthyans, the 'pore group' clusters of early sarcopterygians may have housed electroreceptors. CT data from Devonian lungfish support this interpretation, showing internal morphology consistent with electroreceptors, and innervation via the rostral tubuli underlying the dermal bone of the snout. The early osteichthyan Ligulalepis has pit structures which may be electroreceptors, and were possibly innervated by lateral line nerves. Specialized electroreceptor systems, including elaborated 'pore group' pits in Devonian lungfish and rostral organs in the earliest coelacanths, show that electroreception may have had an important role in niche specialization in early vertebrates. Finally, fossil data does not support the hypothesis that vertebrate hard tissues initially evolved to shield electroreceptors.

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“…25 Электрические органы, используемые для создания собственных электрических полей, имеют порядка 700 видов пресноводных и морских рыб из 12 семейств: аптеронотовые (Apteronotidae Mago-Leccia, 1994) [188], гимнарховые (Gymnarchidae Bleeker, 1859) [244], гимнотовые 32 (Gymnotidae Nelson, 1994) [105], гипопомовые (Hypopomidae Mago-Leccia, 1978) [188], гнюсовые, или электрические скаты (Torpedinidae Bonaparte, 1838) [202], малаптеруровые, или электрические сомы (Malapteruridae Bleeker, 1858) [126,188], мормировые (Mormyridae Bonaparte, 1831) [268], нарциновые скаты (Narcinidae T.N. Gill, 1862) [202], рамфихтовые (Rhamphichthyidae Nelson, 1994) [105], ромбовые скаты (Rajidae Blainville, 1816) [105], стернопиговые (Sternopygidae Cope, 1871) [188], ураноскоповые, или звездочёты, или морские коровки (Uranoscopidae Linnaeus, 1758) [192].…”

unclassified

“…Как только в нём оказываются какие-либо объекты -проводники или диэлектрики -они искажают это поле, и анализ искажений позволяет животному воссоздать образ окружающего его пространства. Такой тип ориентации часто тоже называют «пассивной электролокацией» [229,230,286] Звездочёты, или морские коровки, создают вокруг себя электростатическое поле, хотя у них до сих не обнаружены органы электрорецепции [189,192]. Вместе с тем, при механическом раздражении звездочёты генерируют электрические импульсы, имеющие защитную функцию [76].…”

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Биоэхолокация. Вопросы И Задачи С Ответами И Решениями

2021

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Пособие направлено на всестороннее изучение феномена биоэхолокации. В пособии содержится теоретический материал по относящимся к теме основным вопросам истории науки, зоологии, термодинамики, физики волновых процессов, акустики, уравнений математической физики. Сведения, выходящие за рамки программы средней школы, разъясняются непосредственно в тексте в максимально краткой и доступной форме. Для улучшения усвоения материала пособие сопровождается таблицами и рисунками. Предназначено для студентов и аспирантов, специализирующихся в области биологии, биофизики, медицины и прикладной физики. Предназначено для студентов, обучающихся в бакалавриате по направлениям подготовки 06.03.01 «Биология», 05.03.06 «Экология и природопользование», 09.03.02 «Информационные системы и технологии»; в специалитете – 30.05.01 «Медицинская биохимия», 30.05.02 «Медицинская биофизика», 36.05.01 «Ветеринария»; в магистратуре 06.04.01 «Биология: биологические системы, структура функции технологии», 06.04.01 «Биология: биологическая безопасность».

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Electric discharges of two species of stargazers from the South China Sea (Uranoscopidae, Perciformes)

Cited by 12 publications

References 8 publications

Age, growth and mortality rates of discard species (Uranoscopus scaber, Neogobius melanostomus and Gobius niger) in the Black Sea

Age, growth and mortality rates of discard species (Uranoscopus scaber, Neogobius melanostomus and Gobius niger) in the Black Sea

Electroreception in early vertebrates: survey, evidence and new information

Биоэхолокация. Вопросы И Задачи С Ответами И Решениями

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