Variability in the Location of the Retinal Ganglion Cell Area Centralis Is Correlated with Ontogenetic Changes in Feeding Behavior in the Black Bream, Acanthopagrus butcheri (Sparidae, Teleostei)
Variability in the Location of the Retinal Ganglion Cell Area Centralis Is Correlated with Ontogenetic Changes in Feeding Behavior in the Black Bream, Acanthopagrus butcheri (Sparidae, Teleostei)
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视网膜神经节细胞区域中央位置的变异与黑鲷、棘鲂（棘鲂科、硬骨鱼）摄食行为的个体发生变化相关
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
S. Collin
中科院分区：
文献类型：
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作者：
J. Shand;Stephanie M. Chin;A. Harman;S. Moore;S. Collin
本文研究了黑鲷视网膜神经节细胞层神经细胞形貌的发育。从尼斯尔染色的整批鱼中可以确定，标准体长（SL）为10至15毫米的鱼在整个背颞视网膜象限中具有高细胞密度，细胞密度峰值位于视网膜的颞区。然而，在鱼之间的15和80毫米SL，一个很大的变化，在峰值细胞密度的位置被揭示与区域centrales（AC）的位置范围从专门的颞到周边背视网膜。大于80毫米SL的鱼总是拥有一个AC位于背颞视网膜象限的背侧区域。通过比较从视神经逆行标记的神经节细胞的数量与不同大小个体中的Nissl染色神经元（神经节加移位无长突细胞）的总群体来确定神经节细胞层内的神经节细胞的拓扑结构。神经节细胞的地形是相同的，记录所有Nissl染色的神经元。观察了从变态到80 mm SL的幼鱼的摄食行为，其中鱼可以选择在中层水（直到15 mm SL）中摄食活的食物或从表面或底部获得颗粒。一系列的喂养模式被记录下来，最小的鱼从中层水，但15至80毫米SL之间的个人采取食物从表面或底部或两者。之间的相关性的首选模式的喂养和AC的位置被发现，这样，在中层水或在表面喂养的那些人拥有一个临时或中间（背颞）AC，而那些主要从底部喂养具有背侧AC。
The development of neural cell topography in the retinal ganglion cell layer was examined in a teleost, the black bream (Acanthopagrus butcheri). From Nissl-stained wholemounts, it was established that fish between 10 and 15 mm standard body length (SL) possess high cell densities throughout the dorso-temporal retinal quadrant, with peak cell densities located in temporal regions of the retina. However, in fish between 15 and 80 mm SL, a wide variation in the position of the peak cell density is revealed with the locations of the areae centrales (AC) ranging from exclusively temporal to periphero-dorsal retina. Fish larger than 80 mm SL always possess an AC located in the dorsal region of the dorso-temporal retinal quadrant. The topography of ganglion cells within the ganglion cell layer was determined by comparing the numbers of ganglion cells retrogradely-labeled from the optic nerve with the total population of Nissl-stained neurons (ganglion plus displaced amacrine cells) in a range of different-sized individuals. Ganglion cell topography was the same as that recorded for all Nissl-stained neurons. The feeding behavior of juveniles from metamorphosis to 80 mm SL was observed, where fish were given the choice of feeding on live food in mid-water (until 15 mm SL) or obtaining pellets from the surface or the bottom. A range of feeding patterns was recorded, with the smallest fish taking food from mid-water but individuals between 15 and 80 mm SL taking food either from the surface or the bottom or both. A correlation between the preferred mode of feeding and the position of the AC was found, such that those individuals feeding in mid-water or at the surface possess a temporal or intermediate (dorso- temporal) AC, whereas those predominantly feeding from the bottom possess a dorsal AC.