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Exploring Fish Eating Habits: Factors Influencing Feeding Behavior in Tropical Fish 探讨鱼类食性:影响热带鱼摄食行为的因素
Pub Date : 2023-07-07 DOI: 10.9734/ajfar/2023/v23i4605
F. Pratiwy, K. Haetami, J. A. Sinaga
Feeding behavior is the way fish find, select, and consume food. Understanding fish eating behavior is important to knowing the fulfillment of nutrition and optimal growth in fish. The purpose of writing this article is to determine the factors that influence eating behavior and to compare eating habits between different fish species. The writing method used is literature study, with stages of journal search, journal selection, journal analysis, and journal synthesis. Based on the review results of several relevant journals, it is known that the types of fish feed are divided into 3 categories: euryphagic (eats various types of food), stenophagic (eats types of food that are limited to the ecosystem), and monophagic (eats one specific type of food), while based on the food group they are grouped into the three categories are herbivores (eating plants and algae), carnivores (eating meat), and omnivores (eating everything). Factors that influence eating behavior include food availability, environmental conditions, the type of food, and the size of the fish. 
进食行为是鱼类寻找、选择和消耗食物的方式。了解鱼类的进食行为对于了解鱼类营养的实现和最佳生长非常重要。写这篇文章的目的是确定影响饮食行为的因素,并比较不同鱼类之间的饮食习惯。写作方法采用文献研究法,分为期刊检索、期刊选择、期刊分析和期刊综合四个阶段。根据多家相关期刊的综述结果可知,鱼饲料的种类分为共食(吃各种食物)、窄食(吃生态系统内的各种食物)和单食(吃一种特定的食物)三大类,而根据食物种类分为草食(吃植物和藻类)、食肉(吃肉)和杂食(什么都吃)三大类。影响进食行为的因素包括食物的可得性、环境条件、食物的种类和鱼的大小。
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引用次数: 0
Aluminium Foil as a Packaging Material for Fishery Products: A Review 铝箔作为水产品包装材料的研究进展
Pub Date : 2023-07-06 DOI: 10.9734/ajfar/2023/v23i3604
Vina Qurrota A’yun, E. Liviawaty, R. Pratama, Junianto
Aluminium foil is a thin material made of aluminum metal used for packaging. Aluminium foil has good properties for packaging food products, including hermetic, flexible, opaque, impervious to moisture and water, non-flammable, and does not absorb other materials or substances. Widely, aluminium foil is used as a coating, especially for packaging food which must be protected from gas, moisture, odors, and light so that it can better maintain the durability of the packaged product. Fishery products need to be packaged to extend shelf life and maintain product quality. Several studies have shown that the use of aluminium foil packaging can extend the shelf life compared to other packaging.
铝箔是一种用铝金属制成的薄材料,用于包装。铝箔用于包装食品具有良好的性能,包括密封性、柔韧性、不透明、不透湿不透水、不易燃、不吸收其他材料或物质。铝箔被广泛用作涂层,特别是用于包装食品,这些食品必须防止气体、水分、气味和光线,以便更好地保持包装产品的耐用性。渔业产品需要包装,以延长保质期和保持产品质量。几项研究表明,与其他包装相比,使用铝箔包装可以延长保质期。
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引用次数: 0
Gonad Maturity and Fecundity of Indian Mackerel (Rastellinger kanagurta) in North Gorontalo Waters, Indonesia 印度尼西亚北戈伦塔洛水域印度鲭鱼的性腺成熟度和生殖力
Pub Date : 2023-07-04 DOI: 10.9734/ajfar/2023/v23i3603
Muhammad Yasin Umsini Putra Olii, Sri Vinka Binol, N. Auliyah, Meriyanti Ngabito, I. Apriliani
Indian mackerel (Rastellinger kanagurta) is one of the fish that can be caught by fishermen in North Gorontalo waters. Excessive fishing without regard to the condition of the fish will cause a decrease in the quality and quantity of fish resources. Estimation of size at first maturity is one way to determine population development in water. This study aims to determine the relationship between the level of gonad maturity and the fecundity of Indian mackerel in North Gorontalo waters. This research was conducted in October-December 2021 at the Kwandang Archipelago Fishing Port. The level of maturity of the gonads was observed morphologically and the determination of fecundity was observed using volumetric and gravimetric methods. The maturity level of Indian Mackerel fish in North Gorontalo waters is dominated at level 1. The highest fecundity is 14,800 eggs and the lowest is 5,000 eggs. The relationship between the level of gonad maturity and fecundity is directly proportional, if the gonadal maturity value is high, the fecundity value will also be higher. The spawning season for Indian mackerel in North Gorontalo waters does not take place in October-December, this is characterized by low fecundity. Based on the gonadal maturity values every month, the peak spawning of Indian mackerel (Rastellinger kanagurta) allegedly occurred shortly after the highest GSI values.
印度鲭鱼(Rastellinger kanagurta)是北哥伦塔洛水域渔民可以捕获的鱼之一。不顾鱼类状况的过度捕捞会导致鱼类资源的质量和数量下降。初次成熟时的大小估计是确定水中种群发展的一种方法。本研究旨在确定北哥伦塔洛水域印度鲭鱼性腺成熟度水平与繁殖力之间的关系。这项研究于2021年10月至12月在关唐群岛渔港进行。形态学上观察性腺的成熟程度,用体积法和重量法观察生殖力的测定。北哥伦塔洛水域印度鲭鱼的成熟程度以1级为主。最高的产卵量是14800个,最低的是5000个。性腺成熟度水平与繁殖力成正比关系,性腺成熟度值越高,繁殖力值也越高。北哥伦塔洛水域的印度鲭鱼的产卵季节不是在10 - 12月,其特点是繁殖力低。根据每个月的性腺成熟度值,印度鲭鱼(Rastellinger kanagurta)的产卵高峰据称发生在GSI最高值之后不久。
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引用次数: 0
Natural Spawning Technique of Koi Fish (Cyprinus carpio) in the Ciparanje Inland Fisheries Area, Sumedang, Indonesia 印度尼西亚苏梅当市金巴兰杰内陆渔区锦鲤自然产卵技术研究
Pub Date : 2023-07-01 DOI: 10.9734/ajfar/2023/v23i3602
Y. Andriani, R. Pratama
The Ciparanje inland aquaculture area has emerged as a hub for breeding ornamental fish, with koi fish being a prominent species. The increasing demand for koi fish has led to a surge in koi aquaculture businesses. What sets koi fish apart from some other fish species is their ability to breed throughout the year, unaffected by specific seasons. However, in their natural habitat, koi fish typically spawn at the onset of the rainy season, triggered by the enticing aroma of the soil. The growth of koi fish is influenced by various factors, including fish species, genetic characteristics, feeding efficiency, disease resistance, and environmental conditions such as water and feed quality, as well as stocking density. To ensure the production of top-quality koi fish fry, it is crucial to employ the appropriate spawning techniques. In this study, a participative approach was employed to investigate and report on the natural spawning procedures of koi fish in the Ciparanje inland aquaculture area, managed by Padjadjaran University. The natural spawning method implemented in this area encompasses several crucial processes, including the preparation of spawning ponds, selection of breeding stock, egg hatching, and larvae rearing. A total of 90,175 eggs were collected from the examined koi broodstock during the spawning activities, and an impressive 80% of these eggs successfully hatched. The calculated Hatching Rate (HR) reached 96.5%, indicating a high level of achievement in the hatching of koi fish larvae.
钦巴兰杰内陆水产养殖区已成为养殖观赏鱼的中心,锦鲤是一个突出的品种。对锦鲤的需求不断增加,导致锦鲤养殖业务激增。锦鲤与其他鱼类的区别在于它们全年繁殖的能力,不受特定季节的影响。然而,在它们的自然栖息地,锦鲤通常在雨季开始时产卵,这是由土壤诱人的香气引发的。锦鲤的生长受多种因素的影响,包括鱼种、遗传特性、饲养效率、抗病性、水和饲料质量等环境条件以及放养密度等。为了保证生产出高质量的锦鲤鱼苗,采用合适的产卵技术至关重要。在本研究中,采用参与式方法调查和报告了由Padjadjaran大学管理的Ciparanje内陆水产养殖区锦鲤的自然产卵过程。该地区实施的自然产卵法包括几个关键过程,包括产卵池的准备、种畜的选择、卵的孵化和幼虫的饲养。在产卵活动期间,共收集了90,175枚卵,其中80%的卵成功孵化。计算出的孵化率(HR)达到96.5%,表明锦鲤幼鱼的孵化成功率较高。
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引用次数: 0
The Effectiveness of the Red Water System (RWS) Technique in African Catfish Culture (Clarias gariepinus): A review 红水系统(RWS)技术在非洲鲶鱼养殖中的有效性综述
Pub Date : 2023-07-01 DOI: 10.9734/ajfar/2023/v23i3601
A. Yustiati, Astrid Puspita Ayuningtyas, Y. Andriani
This article aims to analyzed the effectiveness of the Red Water System Technique on the survival and growth of cultivated catfish from the conclusions of several previous researchers. The method used in this literature study is to review several research articles on the success of catfish farming using the red water system technique. We collected and identified 50 academic articles, trusted databases, proceedings, books, dissertations, government regulations, and other international journals that were potentially relevant to the specified keywords. Upon review, the relevant literature was aggregated to 32. The collected review data is then compiled into a manuscript. The result is that probiotics in the red water system technique can maintain water quality according to quality standards by utilizing nutrient levels in waters as a food source for bacteria L.casei and catfish have high growth rates due to the addition of probiotics to the waters, which makes them resistant to disease. In conclusion, the Red Water System technique has improved growth performance, survival rate, digestibility, immunity, and disease resistance in African catfish compared to African catfish culture using conventional methods which can benefit the farmers.
本文旨在从前人的研究结论出发,分析红水系统技术对养殖鲶鱼的生存和生长的有效性。本文献研究采用的方法是回顾几篇关于红水系统技术养殖鲶鱼成功的研究文章。我们收集并确定了50篇可能与指定关键词相关的学术文章、可信数据库、会议记录、书籍、论文、政府法规和其他国际期刊。经审查,相关文献共32篇。然后将收集到的评论数据汇编成手稿。结果表明,红水系统技术中的益生菌可以利用水体中的营养水平作为食物来源,维持水质符合质量标准,因为干酪乳杆菌和鲶鱼由于在水中添加益生菌而具有很高的生长速度,使其具有抗病能力。综上所述,与传统的非洲鲶鱼养殖方法相比,红水系统技术提高了非洲鲶鱼的生长性能、存活率、消化率、免疫力和抗病性,使农民受益。
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引用次数: 0
Income Analysis of Tuna Fish Meatball Business (Case Study at CV Olahan Berkah Sadayana in Karangpawitan District, Garut Regency) 金枪鱼肉丸生意的收入分析(以Garut摄政区Karangpawitan区的CV Olahan Berkah Sadayana为例)
Pub Date : 2023-06-30 DOI: 10.9734/ajfar/2023/v23i2599
Novi Nurchotimah, I. Maulina, A. Suryana, I. Gumilar
This research aims to analyze the income from the sales of tuna meatball products by CV Olahan Berkah Sadayana. This research was conducted from March 2023 to May 2023 at CV Olahan Berkah Sadayana which is located in Karangpawitan District, Garut Regency. The research method is using case study research and data was taken with people who work in production and marketing staff. Quantitative data processing was carried out using Excel tools and then the data was analyzed using descriptive statistics to describe the data. Analysis of the data used in the analysis of income which includes analysis of total production costs, revenue, and analysis of profit. Tuna meatball products by CV Olahan Berkah Sadayana are available in several packages, there are 350 grams, 450 grams, and 550 grams. The results of the income analysis show that the total cost of producing tuna meatballs per year is IDR 1,988,395,500 which includes the fixed costs is IDR 21,679,500 and the variable costs are IDR 1,966,716,000, annual revenue of tuna meatball products is IDR. 2,310,000,000/year and the profitability is IDR 321,604,500/year. The profit received by CV Olahan Berkah Sadayana shows that the tuna meatball business is feasible to continue.
本研究旨在分析CV Olahan Berkah Sadayana销售金枪鱼肉丸产品的收入。该研究于2023年3月至2023年5月在位于Garut摄政区Karangpawitan区的CV Olahan Berkah Sadayana进行。研究方法是使用案例研究,并从从事生产和营销工作的人员中获取数据。使用Excel工具对数据进行定量处理,然后使用描述性统计对数据进行分析,对数据进行描述。对收入分析中使用的数据的分析,包括对总生产成本、收入和利润的分析。CV Olahan Berkah Sadayana的金枪鱼肉丸产品有几种包装,有350克、450克和550克。收入分析结果表明,每年生产金枪鱼肉丸的总成本为1,988,395,500印尼盾,其中固定成本为21,679,500印尼盾,可变成本为1,966,716,000印尼盾,金枪鱼肉丸产品的年收入为印尼盾。2,310,000,000/年,盈利能力为321,604,500印尼盾/年。CV Olahan Berkah Sadayana获得的利润表明,金枪鱼肉丸业务是可行的。
{"title":"Income Analysis of Tuna Fish Meatball Business (Case Study at CV Olahan Berkah Sadayana in Karangpawitan District, Garut Regency)","authors":"Novi Nurchotimah, I. Maulina, A. Suryana, I. Gumilar","doi":"10.9734/ajfar/2023/v23i2599","DOIUrl":"https://doi.org/10.9734/ajfar/2023/v23i2599","url":null,"abstract":"This research aims to analyze the income from the sales of tuna meatball products by CV Olahan Berkah Sadayana. This research was conducted from March 2023 to May 2023 at CV Olahan Berkah Sadayana which is located in Karangpawitan District, Garut Regency. The research method is using case study research and data was taken with people who work in production and marketing staff. Quantitative data processing was carried out using Excel tools and then the data was analyzed using descriptive statistics to describe the data. Analysis of the data used in the analysis of income which includes analysis of total production costs, revenue, and analysis of profit. Tuna meatball products by CV Olahan Berkah Sadayana are available in several packages, there are 350 grams, 450 grams, and 550 grams. The results of the income analysis show that the total cost of producing tuna meatballs per year is IDR 1,988,395,500 which includes the fixed costs is IDR 21,679,500 and the variable costs are IDR 1,966,716,000, annual revenue of tuna meatball products is IDR. 2,310,000,000/year and the profitability is IDR 321,604,500/year. The profit received by CV Olahan Berkah Sadayana shows that the tuna meatball business is feasible to continue.","PeriodicalId":168203,"journal":{"name":"Asian Journal of Fisheries and Aquatic Research","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127531583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Productivity Analysis of Freshwater Fish Farming Floating Net Cage System: A Case Study of Cibinong Village, Jatiluhur District, Purwakarta Regency 淡水鱼养殖浮网箱系统的生产力分析——以普瓦卡塔县Jatiluhur区奇比农村为例
Pub Date : 2023-06-30 DOI: 10.9734/ajfar/2023/v23i3600
A. Suryana, Naurah Nazhifah Zur’aida, A. Nurhayati, I. Maulina
This research aims to analyze the productivity of freshwater fish farming with a floating net caramba system in Cibinong Village, Jatiluhur District, Purwakarta Regency. In addition to some characteristics of farmers and aquaculture businesses, an assessment of good fish farming methods is also used as complementary data for research. zone 1 or coincides in Cibinong Village, namely at the Port of LLASDP Usman Embankment. The study will run from December 2022 to May 2023. This research is descriptive quantitative using survey method. The data required are quantitative data that are primary and secondary. Primary data were collected through two types of collection techniques, in the form of observation and interviews by filling out questionnaire sheets. While secondary data in this study were obtained data from the Fisheries and Livestock Service, Central Statistics Agency, books, scientific journals, theses, internet, and other reference materials from previous research. The object of research is a floating net caramba freshwater fish farmer in Cibinong village. The sampling as respondents was carried out by purposive sampling method. The results showed that the productivity of freshwater fish farming business in floating net caramba amounted to 482,265 tons / ha, fast water ponds 434,771 tons / ha, and calm water ponds 18,547 tons/ha. The productivity of Tilapia in cages 7x7 m2 produces as much as 14,286 kg / m2, Carp in cages 7x14 m2 produce 10,204 kg/m2, and Patin in cages 7x14 m2 produce 25,510 kg/m2.
本研究旨在分析Purwakarta县Jatiluhur区Cibinong村浮网caramba系统淡水鱼养殖的生产力。除了农民和水产养殖业的一些特点外,对良好养鱼方法的评估也被用作研究的补充数据。第1区或与慈滨农村重合,即LLASDP乌斯曼堤岸港口。这项研究将从2022年12月持续到2023年5月。本研究采用调查法进行描述性定量研究。所需的数据是主要和次要的定量数据。通过观察和填写问卷的访谈两种收集技术收集原始数据。本研究之辅助资料则采自渔畜厅、中央统计署、书籍、科学期刊、论文、网路及其他以往研究之参考资料。本研究以慈滨弄村浮网淡水鱼养殖农户为研究对象。调查对象的抽样采用目的抽样法。结果表明:浮网caramba淡水鱼养殖业务的生产力为482265吨/ha,快水塘为434771吨/ha,静水塘为18547吨/ha。7x7平方米网箱中的罗非鱼产量高达14286公斤/平方米,7x14平方米网箱中的鲤鱼产量为10204公斤/平方米,7x14平方米网箱中的拉丁鱼产量为25510公斤/平方米。
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引用次数: 0
Feasibility of Fishing Business with Purse Seine in Gentuma, North Gorontalo, Indonesia 印度尼西亚北哥伦塔洛根图马围网捕鱼业务的可行性
Pub Date : 2023-06-24 DOI: 10.9734/ajfar/2023/v23i2598
Eli Nurlaela, Eddy Sugriwa Husen, Moh Rifki H., Rahmat Muallim, Hery Choerudin, D. Sudrajat, A. K. Mudzakir
The Purse Seine becomes a fishing gear commonly used by fishermen in Gentuma, North Gorontalo. A business feasibility analysis needs to be carried out to assess business opportunities to consider whether the business is feasible to continue or not. The components analyzed include Payback Period, Revenue Cost Ratio, Break Even Point and Return on Investment. This study aims to analyze the feasibility of the business of fishing for purse boats in North Gorontalo Gentuma. This research is based on a case study on MV. Inka Mina 730 operating in Gentuma waters, North Gorontalo. Based on the calculation of financial analysis indicators on MV. Inka Mina 730, obtained profit/loss analysis results of Rp. 388,287,988, R/C Ratio obtained 1.46, Payback Period analysis results of 4,12 means that to return the investment value it takes an interval of 4,12 years, while the BEP value is  Rp. 3.220,383,810, then also obtained a BEP (kg) value of 236,382 kg, and a ROI (Return on Investment) calculation of 24%. The purse seine fishing business in Gentuma, North Gorontalo, Indonesia is feasible and profitable based on the NPV, IRR, and B/C ratio, with return on capital included in the fast return on capital category.
Purse Seine成为北哥伦塔洛根图马渔民常用的渔具。需要进行业务可行性分析,以评估业务机会,考虑业务是否可行,继续或不。分析的成分包括投资回收期、收入成本比、盈亏平衡点和投资回报率。本研究旨在分析北哥伦塔洛根图马地区渔船捕捞业务的可行性。本研究是基于一个MV的案例研究。Inka Mina 730在北哥伦塔洛的Gentuma水域作业。基于财务分析指标对MV的计算。Inka Mina 730,得到的盈亏分析结果为Rp. 388,287,988, R/C Ratio为1.46,回收期分析结果为4,12,意味着要回报投资价值需要间隔4,12年,而BEP值为Rp. 3,220,383,810,则也得到BEP (kg)值为236,382 kg, ROI(投资回报率)计算为24%。根据NPV、IRR和B/C比率计算,印度尼西亚北哥伦塔洛Gentuma的围网捕鱼业务是可行且有利可图的,其资本回报率包含在快速资本回报率类别中。
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引用次数: 0
Reproductive Biology of Pialy Fish, Aspidoparia jaya (Hamilton, 1822) in Bangladesh 孟加拉国Pialy鱼,Aspidoparia jaya (Hamilton, 1822)的生殖生物学
Pub Date : 2023-06-23 DOI: 10.9734/ajfar/2023/v23i2597
D. Das, M. Mithun, M. Moniruzzaman, Y. Mahmud
A study to investigate the reproductive biology of Aspidoparia jaya was conducted in Bangladesh where a total of 80 fish samples were collected on monthly basis from Atrai River and Jamuna River during the period from January 2022 to December 2022. The highest values of the gonado-somatic index (GSI) was recorded in July (11.37±1.75%) and January (9.55±1.35%), whereas highest individual fecundity of 6990±1280 and 5755±1050 and ova diameter of 0.55±0.05 and 0.52±0.03 mm, respectively were also observed during these months. From the histological observation of the ovary, seven different stages of occytes were identified where highest percentage of mature oocytes was observed in July and January. Based on the GSI, fecundity, and gonadal histology, two breeding season of A. jaya was observed from May to August and from December to late January with a remarkable peak in July and January. In case of length weight relationship (LWR), the coefficient of determination value (r2) was found 0.95 and slope was found b= 2.02 which indicated the negative allometric growth pattern of this species as b<3. In contrast, an increase was recorded in the fecundity associated with the rise of total length, body weight, and gonad weight, showed a significant linear relationship. This study would assist in the development of induced breeding techniques and provide valuable information for the sustainable management of this population in the inland open ecosystem.
在2022年1月至2022年12月期间,在孟加拉国的阿特拉伊河和贾穆纳河每月采集80份鱼类样本,研究了刺丝蛛的生殖生物学。性腺-体指数(GSI)在7月(11.37±1.75%)和1月(9.55±1.35%)最高,个体繁殖力最高,分别为6990±1280和5755±1050,卵径最高,分别为0.55±0.05和0.52±0.03 mm。通过对卵巢的组织学观察,确定了7个不同的卵母细胞阶段,其中7月和1月成熟卵母细胞比例最高。根据GSI、繁殖力和性腺组织学分析,5 - 8月和12 - 1月下旬是刺槐的两个繁殖季节,其中7月和1月是显著的繁殖高峰。在长重关系(LWR)下,决定值系数(r2)为0.95,斜率为b= 2.02,表明该树种负异速生长模式为b<3。相比之下,繁殖力的增加与体长、体重和性腺重量的增加相关,呈显著的线性关系。该研究将有助于发展诱导育种技术,并为内陆开放生态系统中该种群的可持续管理提供有价值的信息。
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引用次数: 0
Effectiveness of Light Using on the Number of Giant Lift Net Catches in Barru District, Indonesia 印度尼西亚巴鲁地区使用灯光对巨型提升网渔获量的影响
Pub Date : 2023-06-20 DOI: 10.9734/ajfar/2023/v23i2596
Husniati, M. A. Ghaffar
Aims: This study aims to determine the effectiveness of the use of light on the catches of the Giant lift net.Place and Duration of Study: The research was conducted for six months, from March to August 2022. The research was carried out in the waters of Barru Regency, South Sulawesi Province.Methodology: Data collection was carried out using survey and interview methods as well as literature studies. Field data collection is carried out by participating in direct operations with fishermen. Primary data includes catch (main catch), data on the duration of the stages of catching (setting time, towing time, and hauling time).  The data collected from the interviews are the catch (species, kg/trip, tail/trip) and the trip period. Sampling of the catch is done by taking the fish caught by the Giant lift net per trip. Furthermore, data regarding the description of the Giant lift net was carried out by means of interviews, observations and direct measurements of fishing gear. Secondary data (desk study) will be obtained from an inventory of official publications and fisheries statistical data from the local government.Results: The effectiveness of using the number of lamps and the wattage of the lamps is directly proportional to the catch, the more and brighter the LED lights are used, the more catches will be. The most optimal watt size used in the operation of the Giant lift net is 300-400 watts. The color of the light that is good for using the Giant lift net operation is white.
目的:本研究的目的是确定在巨型升降网的渔获物上使用光的有效性。研究地点和时间:研究时间为6个月,从2022年3月到8月。这项研究是在南苏拉威西省巴鲁摄政的水域进行的。方法:采用调查法、访谈法和文献研究法进行资料收集。实地数据收集是通过与渔民一起参与直接作业来进行的。主要数据包括渔获量(主要渔获量)、各阶段渔获持续时间的数据(设定时间、拖曳时间和拖运时间)。从访谈中收集的数据是渔获量(种类、公斤/次、尾巴/次)和捕捞期。捕获物的取样是通过每次捕获巨型升降网捕获的鱼来完成的。此外,通过访谈、观察和对渔具的直接测量,收集了有关巨型升降网描述的数据。次要数据(案头研究)将从官方出版物和地方政府的渔业统计数据清查中获得。结果:灯的使用效果与灯的瓦数成正比,越多越亮的LED灯的使用效果越明显。在巨型电梯网运行中使用的最佳功率尺寸为300-400瓦。适合使用巨型升降网作业的光色为白色。
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引用次数: 0
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Asian Journal of Fisheries and Aquatic Research
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