DOI•
Saboga – Alosa fallax (Lacépède, 1803)
02 Oct 2019-
TL;DR: Peces - Orden Clupeiformes - Familia Clupeidae in the Enciclopedia Virtual de Vertebrados Espanoles, http://www.vertebradoibericos.org/
Abstract: Peces - Orden Clupeiformes - Familia Clupeidae en la Enciclopedia Virtual de Vertebrados Espanoles, http://www.vertebradosibericos.org/
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TL;DR: Fish protection solutions for water intakes are manifold and include: alterations to intake design; management of the abstraction regime; modification of existing screens to make them “fish friendly”; provision of fish return systems; and the installation of physical screens or behavioural deterrents to prevent or minimise entrainment.
Abstract: Water is abstracted from riverine, estuarine and marine environments to supply potable water,
power stations, hydroelectric facilities and industry. Such abstractions inevitably carry with
them the risk of fish entrainment, defined as „the drawing in of fish of any life stage at a water
intake‟ (Turnpenny & O‟Keeffe, 2005). It is possible, however, that entrainment losses can be
reduced to an acceptable level with the use of appropriate fish screening technologies.
Fish protection solutions for water intakes are manifold and include: alterations to intake
design; management of the abstraction regime; modification of existing screens to make them
“fish friendly”; provision of fish return systems; and the installation of physical screens or
behavioural deterrents to prevent or minimise entrainment. There are however a range of site
specific constraints which influence the suitability of each solution.
2 citations
References
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TL;DR: It is demonstrated, using auditory brainstem response (ABR), that at least one additional species, the gulf menhaden (Brevoortia patronus), is able to detect ultrasound, while several other species including the bay anchovy, scaled sardine, and Spanish sardines only detect sounds to about 4 kHz.
Abstract: It has previously been shown that at least one species of fish (the American shad) in the order clupeiforms (herrings, shads, and relatives) is able to detect sounds up to 180 kHz. However, it has not been clear whether other members of this order are also able to detect ultrasound. It is now demonstrated, using auditory brainstem response (ABR), that at least one additional species, the gulf menhaden (Brevoortia patronus), is able to detect ultrasound, while several other species including the bay anchovy (Anchoa mitchilli), scaled sardine (Harengula jaguana), and Spanish sardine (Sardinella aurita) only detect sounds to about 4 kHz. ABR is used to confirm ultrasonic hearing in the American shad. The results suggest that ultrasound detection may be limited to one subfamily of clupeiforms, the Alosinae. It is suggested that ultrasound detection involves the utricle of the inner ear and speculate as to why, despite having similar ear structures, only one group may detect ultrasound.
208 citations
"Saboga – Alosa fallax (Lacépède, 18..." refers background in this paper
...Los miembros del género Alosa son probablemente los que mayor capacidad auditiva tienen de todos los peces, puesto que pueden llegar a detectar sonidos por encima de los 200 kHz (Mann et al., 2001; Gregory y Clabburn, 2003)....
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01 Jan 2000
TL;DR: In mammals, the orexigenic and anorexigenic neuronal systems are morphologically and functionally connected, forming an interconnected network in the hypothalamus to govern food intake and body weight.
Abstract: In mammals, the orexigenic and anorexigenic neuronal systems are morphologically and functionally connected, forming an interconnected network in the hypothalamus to govern food intake and body weight. However, there are relatively few studies on the brain control of feeding behavior in fish. Recent studies using mammalian neuropeptides or fish homologs of mammalian neuropeptides indicate that brain orexigenic signal molecules include neuropeptide Y, orexins, galanin and b-endorphin, whereas brain anorexigenic signal molecules include cholecystokinin, bombesin, corticotropin-releasing factor, cocaine- and amphetamine-regulated transcript, and serotonin. Tachykinins may also have an anorectic action in fish. The brain hypothalamic area is associated with regulation of food intake, while sites outside the hypothalamus are also involved in this function. There is correlation between short-term changes in serum growth hormone levels and feeding behavior, although possible mechanisms integrating these functions remain to be defined. © 2000 Elsevier Science Inc. All rights reserved.
205 citations
"Saboga – Alosa fallax (Lacépède, 18..." refers background in this paper
...…hipotalámicos (véase una recopilación de ENCICLOPEDIA VIRTUAL DE LOS VERTEBRADOS ESPAÑOLES Sociedad de Amigos del MNCN – MNCN - CSIC 15 referencias en Lin et al. 2000); o (2) podría ser consecuencia de que las presas entrasen en su campo visual y eso actuase como un estímulo para desencadenar el…...
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TL;DR: In this article, the authors investigated the distribution of various diadromous species regularly encountered in Europe, North Africa and the Middle East at the beginning of the 20th century.
97 citations
TL;DR: This study demonstrates that freely swimming, American shad show a variety of behaviors in response to pure tone, ultrasonic stimulation, which depends primarily on stimulus amplitude and, to a lesser degree, on stimulus frequency, direction and duration.
Abstract: Many species of odontocete cetaceans (toothed whales) use high frequency clicks (60–170 kHz) to identify objects in their environment, including potential prey. Behavior and physiological studies have shown that American shad, Alosa sapidissima, can detect ultrasonic signals to at least 180 kHz. This study demonstrates that freely swimming, American shad show a variety of behaviors in response to pure tone, ultrasonic stimulation. This response depends primarily on stimulus amplitude and, to a lesser degree, on stimulus frequency, direction and duration.
50 citations
01 Jan 2006
TL;DR: The phylogenetic relationships within the subfamily Alosinae are known only from the phylogenetic tree of the species of the genus "Alosina" as discussed by the authors, but little is known about the relationships among these species.
Abstract: (subfamily Alosinae) has received research atten-tion concerning its ecology and life-history (Bagliniere,2000 and references therein), as well as conservationissues due to recent declines in many of its species (Wald-man, 2003). Despite their importance, little is knownabout the phylogenetic relationships within
44 citations