Histological dataset of herring larval digestive system

the larval stage of fish is a period of rapid morphological, anatomical and physiological transformation. the shape and structure of digestive organs is commonly used in the wild to assess the nutritional condition of larvae. however, illustrated descriptions of the ontogeny of the digestive system are rare, and non-existent for herring larvae. we studied the development of the organs of the digestive system of atlantic herring larvae obtained from strip-spawning of wild adults (boulogne-sur-mer, france, november 2018) and reared under controlled condition. larvae were reared at 13°c from hatching to developmental stage 4 (i.e. all fins present) with ad libitum feeding. the dataset contains annotated images of histological slides (sagittal sections of 7µm) of herring digestive organs throughout larval development. two histochemical colorations were used to identify organs and mucosubstances (ab: alcian blue coloration; abp alcian blue and periodic acid-schiff coloration).the dataset contains 32 files corresponding to 32 herring larvae, and a total of 221 images. the file’s name are constructed as follows:type: hx_sx_xd_xmm_coloration hx; x is the larva number sx; x is the developmental stage xd; x is the day post hatch xmm; x is the total length in mm ab or abp; corresponds to the histochemical coloration usedwithin each folder, each image is re-identified with the larval identity “hx” and the abbreviation corresponding to the organ(s) visible in the image. and each organ or structure is identified on the image.abbreviation / full name bb / brush border; br / brain; e / enterocyte; ep / endocrine pancreas; ey / eye; f / fin; ga / gill arch; gc / goblet cell; he / hepatocyte; in / intestine; li / liver; n / notochord; nu / nucleus; o / otolith; oe / oesophagus; p / pancreas; pc / pyloric caecum; py / pylorus; sb / swim bladder; st / stomach ; v / vitellus; z / zymogen

鱼类幼虫期是形态学、解剖学和生理学快速转变的阶段。消化器官的形状与结构常在野外用于评估幼虫的营养状况。然而，关于消化系统发生学的图解描述较为罕见，而对于鲱鱼幼虫更是鲜有涉及。本研究针对从法国布洛涅-苏-默（2018年11月）野外成鱼条带产卵获得的北大西洋鲱鱼幼虫的消化器官发育进行了研究，并在控制条件下进行饲养。幼虫在孵化后至发育阶段4（即所有鳍均已出现）期间，在13°C的温度下进行自由摄食。该数据集包含了鲱鱼消化器官在整个幼虫发育过程中的组织切片（7µm横切面）的标注图像。使用了两种组织化学染色法来识别器官和粘膜物质（AB：阿尔辛蓝染色；ABP：阿尔辛蓝和过碘酸-雪夫染色）。数据集包含32个文件，对应32条鲱鱼幼虫，共计221张图像。文件命名方式如下：
type: hx_sx_xd_xmm_coloration hx；x代表幼虫编号 sx；x代表发育阶段 xd；x代表孵化后第x天 xmm；x代表总长度（毫米） ab或abp；对应所使用的组织化学染色法
在每一个文件夹中，每一张图像都会根据幼虫身份“hx”和图像中可见的器官的缩写进行重新标识。并且每个器官或结构在图像上均被识别。
缩写/全称：bb/刷状缘；br/脑；e/肠上皮细胞；ep/内分泌胰腺；ey/眼；f/鳍；ga/鳃弓；gc/杯状细胞；he/肝细胞；in/肠；li/肝；n/脊索；nu/细胞核；o/耳石；oe/食管；p/胰腺；pc/幽门盲囊；py/幽门；sb/浮囊；st/胃；v/蛋黄；z/酶原