Food Preference of Purple-Spotted Bigeye (Priacanthus tayenus Richardson 1846) in Northern Coast of Java, Indonesia

IF 1.5 4区生物学 Q3 MARINE & FRESHWATER BIOLOGY Marine Ecology-An Evolutionary Perspective Pub Date : 2024-10-13 DOI:10.1111/maec.12846

Eko Setyobudi, Murwantoko Murwantoko, Tony Budi Satriyo, Eko Hardianto, Wahyu Novianto Bagas Waskitho, Niken Astuti, Hana Cahya Maharani, Fentriana Aji Prastiwi

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Abstract

Diet is one of the essential information used in the management of fisheries resource. The objective of this study was to assess the dietary preferences, index of preponderance, trophic level, food niche breadth, and food overlap of purple-spotted bigeye (Priacanthus tayenus) caught from the northern coast of Java, Indonesia. A total of 407 fish samples were collected from July to October 2023. Each fish sample was measured for total length and body weight. Fish were then dissected to determine sex, gut length, gut volume, and diet composition. Data analysis included relative gut length, diet composition, frequency of occurrence, trophic level, index of preponderance, food niche breadth, and food overlap. The result showed that the purple-spotted bigeye is a carnivorous fish (trophic level ranges from 3.88 to 4.18), whose main food is fish and shrimp. Based on the niche breadth value, purple-spotted bigeye from East Java were more diverse in finding food (niche breadth = 0.26) than from West Java (niche breadth = 0.06) and Central Java (niche breadth = 0.09). The purple-spotted bigeye species from West Java and Central Java exhibited a high level of competition in their search for food, as indicated by a food overlap value of 0.998.

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印度尼西亚爪哇岛北海岸紫斑大眼鱼（Priacanthus tayenus Richardson 1846）的食物偏好

日粮是渔业资源管理的重要信息之一。本研究的目的是评估在印度尼西亚爪哇北部海岸捕获的紫斑大眼（Priacanthus tayenus）的饮食偏好、优势指数、营养水平、食物生态位宽度和食物重叠。2023年7月至10月共采集鱼类样本407份。测量了每条鱼的总长度和体重。然后解剖鱼以确定性别、肠道长度、肠道体积和饮食组成。数据分析包括相对肠道长度、饮食组成、发生频率、营养水平、优势指数、食物生态位宽度和食物重叠。结果表明，紫斑大眼鱼属肉食性鱼类（营养等级3.88 ~ 4.18），主要以鱼虾为食。根据生态位宽度值，东爪哇紫斑大眼寻找食物的多样性（生态位宽度= 0.26）高于西爪哇（生态位宽度= 0.06）和中爪哇（生态位宽度= 0.09）。来自西爪哇和中爪哇的紫斑大眼物种在寻找食物时表现出高度的竞争，食物重叠值为0.998。

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来源期刊

Marine Ecology-An Evolutionary Perspective 生物-海洋与淡水生物学

CiteScore

2.70

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Marine Ecology publishes original contributions on the structure and dynamics of marine benthic and pelagic ecosystems, communities and populations, and on the critical links between ecology and the evolution of marine organisms. The journal prioritizes contributions elucidating fundamental aspects of species interaction and adaptation to the environment through integration of information from various organizational levels (molecules to ecosystems) and different disciplines (molecular biology, genetics, biochemistry, physiology, marine biology, natural history, geography, oceanography, palaeontology and modelling) as viewed from an ecological perspective. The journal also focuses on population genetic processes, evolution of life histories, morphological traits and behaviour, historical ecology and biogeography, macro-ecology and seascape ecology, palaeo-ecological reconstruction, and ecological changes due to introduction of new biota, human pressure or environmental change. Most applied marine science, including fisheries biology, aquaculture, natural-products chemistry, toxicology, and local pollution studies lie outside the scope of the journal. Papers should address ecological questions that would be of interest to a worldwide readership of ecologists; papers of mostly local interest, including descriptions of flora and fauna, taxonomic descriptions, and range extensions will not be considered.