Piskuła Paulina, Astel Aleksander Maria
Department of Environmental Chemistry and Toxicology, Institute of Geography, Pomeranian University in Słupsk, 22a Arciszewskiego Str., 76-200 Słupsk, Poland.
Animals (Basel). 2025 Aug 13;15(16):2381. doi: 10.3390/ani15162381.
Condition factors are essential in fishery science. They provide insights into fish well-being according to the impact of environmental stressors. The Fulton condition factor (K) and hepatosomatic index (HSI), as well as two new indices (GILSI and GITI), were used to assess the well-being of herring and bycatch species (cod, flounder, sprat, long-spined bullhead, lumpfish) from the Baltic Sea. For and , K and HSI values were reported for the first time. Fish from different basins differed according to biometric measures (weight: 6.09-750.12 g; length: 8.6-41.8 mm) and condition indices (mean K: 1.19; HSI: 0.02; GITI: 0.04; GILSI: 0.03). Microplastics (MPs) were found in all species (21% (sprat)-79% (lumpfish)), averaging 3.1 items/fish. The organ-wise analysis revealed that 46% of the gills, 16% of the livers, and 38% of the gastrointestinal tracts were contaminated with MPs. The relationship between these indices and MPs abundance in the organs of herring was examined using PCA, revealing a negative impact of MPs on fish health. The morphometric features and the chemical composition of MPs were also detected. The dominant size ranges were 0.11-0.5 mm (30%) and 1.01-5 mm (28%). Blue fibers were the most common.
状况因子在渔业科学中至关重要。它们根据环境压力源的影响提供有关鱼类健康状况的见解。富尔顿状况因子（K）和肝体指数（HSI），以及两个新指数（GILSI和GITI），被用于评估波罗的海鲱鱼和兼捕物种（鳕鱼、比目鱼、黍鲱、长棘杜父鱼、太平洋刺狮子鱼）的健康状况。对于[具体情况未提及]和[具体情况未提及]，首次报告了K和HSI值。来自不同流域的鱼类在生物测量指标（体重：6.09 - 750.12克；体长：8.6 - 41.8毫米）和状况指数（平均K：1.19；HSI：0.02；GITI：0.04；GILSI：0.03）方面存在差异。在所有物种中都发现了微塑料（MPs）（21%（黍鲱） - 79%（太平洋刺狮子鱼）），平均每条鱼有3.1个微塑料颗粒。器官层面的分析表明，46%的鳃、16%的肝脏和38%的胃肠道被微塑料污染。使用主成分分析（PCA）研究了这些指数与鲱鱼器官中微塑料丰度之间的关系，结果表明微塑料对鱼类健康有负面影响。还检测了微塑料的形态特征和化学成分。主要尺寸范围是0.11 - 0.5毫米（30%）和1.01 - 5毫米（28%）。蓝色纤维最为常见。
