Fisheries and Aquatic Sciences最新文献_第6页

Other faunas, coral rubbles, and soft coral covers are important predictors of coral reef fish diversity, abundance, and biomass 其他动物群、珊瑚碎石和软珊瑚覆盖是珊瑚礁鱼类多样性、丰度和生物量的重要预测指标

Fisheries and Aquatic Sciences Pub Date : 2023-04-01 DOI: 10.47853/fas.2023.e23

Imam Bachtiar, T. A. Hadi, Karnan Karnan, Naila Taslimah Bachtiar

{"title":"Other faunas, coral rubbles, and soft coral covers are important predictors of coral reef fish diversity, abundance, and biomass","authors":"Imam Bachtiar, T. A. Hadi, Karnan Karnan, Naila Taslimah Bachtiar","doi":"10.47853/fas.2023.e23","DOIUrl":"https://doi.org/10.47853/fas.2023.e23","url":null,"abstract":"Coral reef fisheries are prominent for the archipelagic countries’ food sufficiency and security. Studies showed that fish abundance and biomass are affected by biophysical variables. The present study determines which biophysical variables are important predictors of fish diversity, abundance, and biomass. The study used available monitoring data from the Indonesian Research Center for Oceanography, the National Board for Research and Innovation. Data were collected from 245 transects in 19 locations distributed across the Indonesian Archipelago, including the eastern Indian Ocean, Sunda Shelf (Karimata Sea), Wal-lacea (Flores and Banda Seas), and the western Pacific Ocean. Principal component analysis and multiple regression model were administered to 13 biophysical metrics against 11 variables of coral reef fishes, i.e., diversity, abundance, and biomass of coral reef fishes at three trophic levels. The results showed for the first time that the covers of other fauna, coral rubbles, and soft corals were the three most important predictor variables for nearly all coral reef fish variables. Other fauna cover was the important predictor for all 11 coral reef fish variables. Coral rubble cover was the predictor for ten variables, but carnivore fish abundance. Soft coral cover was a good predictor for corallivore, carnivore, and targeted fishes. Despite important predictors for corallivore and carnivore fish variables, hard coral cover was not the critical predictor for herbivore fish variables. The other important predictor variables with a consistent pattern were dead coral covered with algae and rocks. Dead coral covered with algae was an important predictor for herbivore fishes, while the rock was good for only carnivore fishes.","PeriodicalId":12249,"journal":{"name":"Fisheries and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83978300","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

Some aspects of the reproductive biology of Synodontis schall from a lotic freshwater in Nigeria 尼日利亚淡水滑膜虫生殖生物学的若干方面

Fisheries and Aquatic Sciences Pub Date : 2023-04-01 DOI: 10.47853/fas.2023.e22

Ukpamufo Cyril Olowo, N. Egun, I. Oboh

{"title":"Some aspects of the reproductive biology of Synodontis schall from a lotic freshwater in Nigeria","authors":"Ukpamufo Cyril Olowo, N. Egun, I. Oboh","doi":"10.47853/fas.2023.e22","DOIUrl":"https://doi.org/10.47853/fas.2023.e22","url":null,"abstract":"The suitability of any fish species for successful aquaculture requires basic information on its reproduction and growth. This study investigated some facets of the reproductive biology of Synodontis shall (Mochokidae) from River Siluko in Nigeria. Fish samples were collected forth-nightly for a duration of fourteen (14) months—March 2015 to April, 2016 with the assistance of artisanal fishermen. Fishes were identified using taxonomic guides and standard techniques were used for determination of sex ratio, gonad maturation and fecundity. Linear regression method was used to define the correlation between fecundity and fish length, body weight and ovary weight. Results showed that sex ratio did not indicate a significant divergence ( p > 0.05) from the 1 male to 1 female distribution ratio (1:1.41). Gonad morphology revealed paired gonads. Testes and ovaries were classified into four maturity stages: immature, resting, ripening and ripe. Gonadosomatic index ranged from 0.04 to 5.68 (males) and 0.03 to 20.19 (females). Absolute fecundity ranged from 1,014 to 4,520 eggs (mean = 2,592 eggs) and did not correlate significantly ( p > 0.05) to ovary weight. This study has contributed to existing data on the biology of freshwater fish species in Nigeria and provided valuable information for fishery management tools in the conservation and utilization of this valuable freshwater fish species.","PeriodicalId":12249,"journal":{"name":"Fisheries and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73763671","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

Overfishing and recent risk for collapse of fishery in coastal Mediterranean lagoon ecosystem (Karavasta lagoon, southeastern Adriatic sea) 地中海沿岸泻湖生态系统(亚得里亚海东南部卡拉瓦斯塔泻湖)的过度捕捞和近期渔业崩溃的风险

Fisheries and Aquatic Sciences Pub Date : 2023-04-01 DOI: 10.47853/fas.2023.e25

S. Shumka, Y. Nagahama, Sarjmir Hoxha, K. Asano

{"title":"Overfishing and recent risk for collapse of fishery in coastal\u0000 Mediterranean lagoon ecosystem (Karavasta lagoon, southeastern Adriatic\u0000 sea)","authors":"S. Shumka, Y. Nagahama, Sarjmir Hoxha, K. Asano","doi":"10.47853/fas.2023.e25","DOIUrl":"https://doi.org/10.47853/fas.2023.e25","url":null,"abstract":"Beside that the fish species and their sub-populations are highly important as a keystone species in the coastal and marine eco-system, there are very few studies on their presence, distribution and temporal variations within and around the lagoon ecosystems in Albania. This paper provides an updated review on the life cycle, fishery, exploitation state and management of the main species that are subject of commercial fishing in the Karavasta lagoon, southeastern Adriatic coast of Albania. Due to the fact that lagoons represent a continuum between continental and marine aquatic ecosystems they play a crucial role in species life cycles. Further on in the circumstances of rapid utilizations and environmental changes, anomalies in salinity and temperatures, accelerated anthropogenic influences their rate of vulnerability is highly increased. Following the requirements of the Water Framework Directive, transitional water, coastal lagoons and estuaries there is a need for urgent monitoring and management approaches. The commercial species include: European eel ( Anguilla anguilla ), species of Family Mugilidae ( Mugil cephalus , Liza ramada , Liza salienes and Chelon labrosus ), Seabream ( Sparus aurata ), Seabass ( Dincentrarchus labrax ), etc. Fish productivity is oscillating from maximum value of 61.95 kg/ha is recorded in period of 1975–80 and lower value of 31 kg/ha in year 2020. Our study highlights importance of fish and fishery long-term monitoring, and contributes to understand the driving factors in productivity, migration patterns and species ecology in the vital coastal ecosystems.","PeriodicalId":12249,"journal":{"name":"Fisheries and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82666376","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

Morphometric relations and diet compositions of Nile tilapia Oreochromis niloticus (Linn. 1758) in Lake Tana Gorgora gulf, Ethiopia 埃塞俄比亚塔纳戈尔戈拉湖海湾尼罗罗非鱼Oreochromis niloticus (Linn. 1758)形态计量学关系及饲料组成

Fisheries and Aquatic Sciences Pub Date : 2023-03-01 DOI: 10.47853/fas.2023.e14

Flipos Engdaw

引用次数: 0

The responsibility of C-terminal domain in the thermolabile haemolysin activity of Vibrio parahaemolyticus and inhibition treatments by Phellinus sp. extracts c -末端结构域在副溶血性弧菌耐热溶血素活性中的作用及其提取物的抑制作用

Fisheries and Aquatic Sciences Pub Date : 2023-03-01 DOI: 10.47853/fas.2023.e17

T. Huyen, Ha Phuong Trang, Nguyen Thi-Ngan, Bui Dinh-Thanh, L. Quoc, Trinh Ngoc Nam

引用次数: 0

Length-based stock assessment of the pacific yellowtail emperor in the Southern Sulawesi, Indonesia 印度尼西亚苏拉威西岛南部太平洋黄尾皇鱼的基于长度的种群评估

Fisheries and Aquatic Sciences Pub Date : 2023-03-01 DOI: 10.47853/fas.2023.e18

I. N. Suyasa, Alifah Fitam Rakhma Sari, S. Agustina, Rian Prasetia, Ratna Suharti, T. Ruchimat, B. Wiryawan, I. Yulianto

引用次数: 0

α-amylase and α-glucosidase inhibition effects of Korean edible brown, green, and red seaweed extracts 韩国食用褐、绿、红海藻提取物对α-淀粉酶和α-葡萄糖苷酶的抑制作用

Fisheries and Aquatic Sciences Pub Date : 2023-03-01 DOI: 10.47853/fas.2023.e15

Ju-Won Ryu, Myeong-Seok Lee, Mi-Jin Yim, Jeong-Min Lee, D. Lee, Young-Mog Kim, S. Eom

引用次数: 0

Biological aspects of roundscads (Decapterus spp.) inhabiting the waters of Southeast Maluku, Eastern Indonesia 印度尼西亚东部马鲁古群岛东南海域的圆尾鱼(Decapterus spp.)生物学特征

Fisheries and Aquatic Sciences Pub Date : 2023-03-01 DOI: 10.47853/fas.2023.e19

Pattikawa Jesaja Ajub, Mamesah Julieta Adriana Bertha, Tetelepta Johannes Marten Stephan, N. Yuliana, Pietersz Janson Hans

引用次数: 1

Functional characterization and expression analysis of c-type and g-like-type lysozymes in yellowtail clownfish (Amphiprion clarkii) 克氏Amphiprion clarkii黄尾小丑鱼c型和g型溶菌酶的功能表征及表达分析

Fisheries and Aquatic Sciences Pub Date : 2023-03-01 DOI: 10.47853/fas.2023.e16

Gaeun Kim, H. Sohn, Wkm Omeka, Chaehyeon Lim, Don Anushka Sandaruwan Elvitigala, Jehee Lee

{"title":"Functional characterization and expression analysis of c-type and\u0000 g-like-type lysozymes in yellowtail clownfish (Amphiprion\u0000 clarkii)","authors":"Gaeun Kim, H. Sohn, Wkm Omeka, Chaehyeon Lim, Don Anushka Sandaruwan Elvitigala, Jehee Lee","doi":"10.47853/fas.2023.e16","DOIUrl":"https://doi.org/10.47853/fas.2023.e16","url":null,"abstract":"Lysozymes are well-known antibacterial enzymes that mainly target the peptidoglycan layer of the bacterial cell wall. Animal ly-sozymes are mainly categorized as g-type, c-type, and i-type based on protein sequence and structural differences. In this study, c-type (AcLysC) and g-like-type (AcLysG-like) lysozymes from Amphiprion clarkii were characterized in silico via expressional and functional approaches. According to in silico analysis, open reading frames of AcLysC and AcLysG-like were 429 bp and 570 bp, respectively, encoding the corresponding polypeptide chains with 142 and 189 amino acids. Elevated expression levels of AcLysC and AcLysG-like were observed in the liver and the heart tissues, respectively, as evidenced by quantitative real-time polymerase chain reaction assays. AcLysC and AcLysG-like transcript levels were upregulated in gills, head kidney, and blood cells following experimental immune stimulation. Recombinant AcLysC exhibited potent lytic activity against Vibrio anguillarum , whereas recombinant AcLysG-like showed remarkable antibacterial activity against Vibrio harveyi and Streptococcus parauberis , which was further evidenced by scanning electron microscopic imaging of destructed bacterial cell walls. The findings of this study collectively suggest the potential roles of AcLysC and AcLysG-like in host immune defense.","PeriodicalId":12249,"journal":{"name":"Fisheries and Aquatic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89002002","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

Infection of Enteromyxum leei in cultured starry flounder Platichthys stellatus 养殖星形比目鱼lei肠杆菌的感染

Fisheries and Aquatic Sciences Pub Date : 2023-03-01 DOI: 10.47853/fas.2023.e20

S. Shin, Jehee Lee

引用次数: 0