Autor: Hamdani, Herman - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Density Effect of Mangrove Vegetation on Gastropods on Pandansari Mangrove Ecotourism Forest, Kaliwlingi Village, Brebes Central Java
Autorzy:: Nurfitriani, Siska
Lili, Walim
Hamdani, Herman
Sahidin, Asep
Tematy:: Brebes
Clavatulidae
Diversity Index
Ellobiidae
Gastropods
Mangrove Density
Mangroves
Naticidae
Nerithidae
Potamididae
Thiaridae
Uniformity Index; Pokaż więcej
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Powiązania:: https://bibliotekanauki.pl/articles/1062746.pdf Link otwiera się w nowym oknie
Opis:: This research was conducted on November 2018 - January 2019. The method used was the survey method by making direct observations on the stations that have been determined. The results of the research include two types of mangroves found, they are Rhizophora stylosa and Aviciena marina. The highest mangrove density was found at station 1, as many as 2302 ind / ha which dominated by R. stylosa. Gastropods found were Casidulla aurisfelis, Cerithidea sp., C. cingulate, C. alata, C. obtusa, Polinices sp., Puperita sp., Tarebia sp., Telescopium telescopium, and Turricula flammea. The Diversity Index obtained is 0.998 - 2.547, indicating moderate diversity. The uniformity index obtained is 0.10 - 0.27, indicating that there was a dominant community. While the relation between mangrove vegetation density and gastropods was 0.95, this shows that there is a very strong relation between the density of mangroves and gastropods.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Utilization of activated carbon of various charcoal types as absorbent in green shellfish (Perna viridis, Linnaeus, 1758) contaminated by lead heavy metal
Autorzy:: Yustindriarini, Vidya
Hasan, Zahidah
Hamdani, Herman
Sahidin, Asep
Tematy:: Activated Carbon
Green Shell
Lead
Perna viridis
Skeletonema; Pokaż więcej
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Powiązania:: https://bibliotekanauki.pl/articles/1076152.pdf Link otwiera się w nowym oknie
Opis:: Aims of the research are to determine the type of activated carbon with high absorption rate in absorbing heavy metals of lead in green shells. This research used experimental method with complete randomized design then analyzed used analysis of variance and duncan test to see the decrease of lead in green shells by using different charcoal filters. The results showed that the highest decrease in green shell was by using coconut shell activated filter are 0,28 with a decrease percentage of 36,51%. The best lead decrease in water maintenance coconut shell activated filter treatment are 0,33 ppm. The coconut shell activated charcoal has a low ash content compared to other types and large pore charcoal size. Factors that supporting the metal absorption by charcoal include ash content on charcoal, charcoal pores, carbon concentration and pH concentration. Water quality measurements were measured in the morning and evening as supporting parameters in the study. Water quality measurements are in a range that can still be tolerated by green shells. Based on these results it can be concluded that the use of coconut shell activated charcoal is the best type of charcoal in lowering lead in green shells.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Difference Effect of Mouth Width Size and Operating Depth of Sodo (Push net) on the Catch of Rebon Shrimp (Acetes indicus H. Milne Edwards, 1830) in Tanah Kuning Waters, North Kalimantan, Indonesia
Autorzy:: Rahmayani, Rahmayani
Hamdani, Herman
Junianto, Junianto
Izza, A. Mahdiana
Tematy:: Acetes indicus
Rebon shrimp
Sodo mouth width size
depth
sodo; Pokaż więcej
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Powiązania:: https://bibliotekanauki.pl/articles/1062751.pdf Link otwiera się w nowym oknie
Opis:: Sodo (push net) is a fishing gear used to capture Rebon shrimp (Acetes indicus H. Milne-Edwards, 1830) by fishermen in Tanah Kuning water and it has a construction for varied operation depth. The purpose of this study was to determine the combination of the size of the mouth width and depth of operation of Sodo to get the most Rebon shrimp catch in the waters of Tanah Kuning. The study method used is experimental with Randomized Block Design (RBD). The first group is the size of the width used, equaling 4.8 m, 6 m, and 7.2 m, and depths of 0.5 to 3 m, and 4 to 6 m. The catch data was taken on January 15-22 2019. The results show that the A2B1 treatment, which is a combination of the size of the mouth width of 6 m and operated at a depth 0.5 – 3 m, was the best treatment, with the highest catch of mass 238 kg.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Catch of Skipjack Tuna (Euthynnus sp.) in National Fisheries Port Pengambengan, Bali, Indonesia
Autorzy:: Apriliani, Izza Mahdiana
Rizal, Achmad
Hamdani, Herman
Denika, Ayang
Tematy:: Bali strait
Euthynnus
Thunnus albacares
Thunnus obesus
bigeye tuna
catch per unit effort
monsoon
tuna
yellowfin tuna; Pokaż więcej
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Powiązania:: https://bibliotekanauki.pl/articles/1065114.pdf Link otwiera się w nowym oknie
Opis:: The Bali Strait has very high pelagic fish resources, ranging from small pelagic fish to large pelagics, one of which is a type of tuna. Skipjack tuna (Euthynnus sp.) is one of the dominant and high economic value fish resources. The composition of fish catch landed in National Fisheries Port (PPN) Pengambengan in 2014 is dominated by small pelagic fish. The composition of the largest fish catches consists of lemuru, skipjack, mackerel and scad. This study aims to look at the production of skipjack tuna and season distribution for 5 years. This information can be used as an effort to manage fisheries in PPN Pengambengan continuously. This research was carried out in the waters of the Bali Strait with fishing base PPN Pengambengan. The catch of skipjack tuna in Bali is fluctuated every month during 2013 until 2017. The average catch is high in 2014, and the lowest catch was in 2016. This was allegedly due to the catches of previous years namely in 2014 – 2015 skipjack tuna fish resources were overexploited. The catch of skipjack tuna based on the season has the highest value in September - November (transition II (intern-monsoon)) and the lowest is in December-February (northwest season).
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Analysis of Stingray Catches which Landed in Fish Landing Site of Labuan Bajo, West Manggarai Regency of East Nusa Tenggara
Autorzy:: Asut, Helena
Hamdani, Herman
Junianto, Junianto
Dewanti, Lantun Paradhita
Tematy:: Aetobatus narinari
Dasyatis kuhlli
Himantura granulata
Himantura uarnak
Pastinachus sephen
Sex Ratio
Stingray
Stingray Size
Stingray Type
Taeniura lymma; Pokaż więcej
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Powiązania:: https://bibliotekanauki.pl/articles/1076712.pdf Link otwiera się w nowym oknie
Opis:: The purpose of the study was to determine the sustainability status of Stingray capture to determine the feasibility of catching Stingray in the waters of West Manggarai Regency. The research method used is the survey method, and this was conducted in July 2018 until mid-September 2018. The parameters studied included the type of Stingray, size and sex ratio. The results showed that the Stingray species found were A. narinari, D. kuhlii, H. granulata, H. uarnak, P. sephen, and T. lymma, with species diversity still stable (H' = 1,4). The average size of Stingray species caught makes it, however, not worth catching. Comparison of the Stingray sex ratio shows that T. lymma and H. granulata species were unbalanced, thus they should not be caught. D. kuhli and H. uarnak are still in balance so they can still be harvested. Based on conservation status in IUCN, the stingray that had the most severe threat status was H. granulata and H. uarnak, thus, these should not be harvested at all.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: The Eco Friendly Level of Mini Purse Seine Based on Catch Decapterus spp in Pekalongan Nusantara Fishing Port, Central Java, Indonesia
Autorzy:: Prasetyo, Adi
Hamdani, Herman
Astuty, Sri
Dewanti, Lantun P.
Tematy:: Decapterus spp.
Eco friendly
Mini purse seine; Pokaż więcej
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Powiązania:: https://bibliotekanauki.pl/articles/1109100.pdf Link otwiera się w nowym oknie
Opis:: Excessive exploitation of fish resources with the use of fishing gear that is not selective and not eco-friendly will have an impact on the sustainability of capture fisheries, and cause damage to fish resources and marine ecosystems. The mini purse seine is a fishing gear that is most widely used by fishermen in the sea of the north coast of Java. Research was undertaken the Nusantara Fisheries Port (PPN), Pekalongan. The purpose of this research is to analyze the level of eco friendliness of mini purse seine fishing based on the main catch, which is (Decapterus spp.). The research method used a survey method at PPN Pekalongan and follows the operation of 3 units of mini purse seine working the fishing ground on the North Coast of Central Java, in January-February 2018. Data taken included total catches, catch composition, diversity index and the size of the fork length. Data analysis used the proportion of the main catch and by-catch, as well as the proportion of fish worth catching and not catching. The results showed that the mini purse seine fishing gear caught 6 species with a total catch of 35,633 with a weight of 4,600 kg. The main catch is 51%, compared to 49% by-catch. The length of the main catch fish worth catching is 46% of all fish measured. Diversity index value is 1.42 (high diversity), based on a research mini purse seine operated in the the Java Sea. The results of our work indicate that mini purse seine fishing is not eco friendly - as seen from the criteria of catch composition.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Capture process of mackerel (Scomberomorus commerson) on gillnet in Pangandaran water
Autorzy:: Oktavera, Caca
Apriliani, Izza Mahdiana
Hamdani, Herman
Haetami, Kiki
Tematy:: Scomberomorus commerson
capture process
gillnet
mackerel
proportion; Pokaż więcej
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Powiązania:: https://bibliotekanauki.pl/articles/1075657.pdf Link otwiera się w nowym oknie
Opis:: Gillnets are simple fishing gear that commonly used by fisherman in Pangandaran. This research aims to see the capture process of mackerel (Scomberomorus commerson) on gillnet in Pangandaran waters. This research was conducted in August 2018 and January 2019 in Pangandaran, West Java. This research using survey method. The data used in this research are primary data consisting of the proportion of catches and capture process, whereas secondary data obtained from Dinas Perikanan Pangandaran. The results of this research shows that the quantity and weight proportion of Bycatch > Maincatch and capture process of mackerel dominated by wedged by 79% and the lowest is snagged by 7%.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Relationship between Length and Mouth Opening of Skipjack Tuna (Katsuwonus pelamis) in the Waters of Palabuhanratu Sukabumi Regency
Autorzy:: Ridwan, Monika
Khan, Alexander M. A.
Zahidah, Zahidah
Hamdani, Herman
Tematy:: Katsuwonus pelamis
Palabuhanratu waters
correlation value
length-mouth opening relationship
skipjack tuna; Pokaż więcej
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Powiązania:: https://bibliotekanauki.pl/articles/1031887.pdf Link otwiera się w nowym oknie
Opis:: Skipjack tuna (Katsuwonus pelamis (Linnaeus, 1758)) is one of the main commodities of Palabuhanratu capture fisheries with a percentage of 14% or 422.701 kg of total capture fisheries production in 2017. The purpose of this research is to analyze the correlation between length and mouth opening of skipjack tuna (Katsuwonus Pelamis) in the waters of Palabuhanratu Sukabumi Regency. The sample was collected in June until August 2019 at the Palabuhanratu Fishing Port, Sukabumi Regency. Skipjack tuna observed during the research had a total length range from 250 until 730 mm FL. The pattern of length and opening mouth relationships of skipjack tuna can be seen from the regression and correlation values. The results obtained were collected combined Y = 0.8064x - 0.2283 and R2 = 0.7786. Correlation value of the length and mouth opening relationship of skipjack tuna was 0.88. The level of length-mouth opening relationship of skipjack tuna is highly interrelated.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Length Weight Relationship and Condition Factor of Indo-Pacific King Mackerel (Scomberomorus guttatus) in Pangandaran Water, West Java, Indonesia
Autorzy:: Tarigan, Amsal Loudikia
Hamdani, Herman
Yustiati, Ayi
Dewanti, Lantun P.
Tematy:: Indo-Pacific
Pangandaran water
Scomberomorus guttatus
condition factor
length-weight relationship; Pokaż więcej
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Powiązania:: https://bibliotekanauki.pl/articles/1076725.pdf Link otwiera się w nowym oknie
Opis:: Scomberomorus guttatus is an economical valuable fish in Pangandaran, West Java, Indonesia. Indeed, the catch of large pelagic fish in Pangandaran water is dominated by Scomberomorus guttatus at around 42.30% of the total production of large pelagic fish in 2015-2017. The purpose of this research is to analyze length-weight relationship and condition factors of Scomberomorus guttatus. The samples were collected in August and September 2018 at Cikidang Fishing Port, Pangandaran Regency, West Java. The Scomberomorus guttatus observed during the research had total length ranging from 205 to 685 mmTL, and the length-weight relationship of Scomberomorus guttatus in Pangandaran water was indicated by the equation W=〖0,0000038L〗^3.0839. Furthermore, the growth pattern of Scomberomorus guttatus is positive allometric (b = 3.0839), meaning that weight growth is faster than length growth, while its condition factor range from 0.52 to 1.54 (average - 1.00 ±0.08).
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Diversity of Chlorophyta on Karapyak Beach, Pangandaran, West Java Province, Indonesia
Autorzy:: Hanifah, Syifa
Sahidin, Asep
Hamdani, Herman
Yuliadi, Lintang Permata Sari
Tematy:: Chlorophyta
Diversity
Karapyak Beach
Macroalgae; Pokaż więcej
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Powiązania:: https://bibliotekanauki.pl/articles/1076067.pdf Link otwiera się w nowym oknie
Opis:: The purpose of this study is to determine and analyze the level of diversity of Chlorophyta on the intertidal area of Karapyak waters. The study was conducted from January to March 2018 at Karapyak beach, Pangandaran regency. Research parameters analyzed were species density, species frequency, species cover, Importance Value Index, Diversity and Uniformity of macroalgae. The measured environmental parameters are temperature, salinity, DO, pH, nitrate and phosphate. The results showed that there were 6 species macroalgae of the division Chlorophyta found on Karapyak Beach. The macroalgae (H) diversity index value is in the low category based on the index of the Shannon-Wienner. Meanwhile, the uniformity index value (E) is in the high category according to the Evennes index, which means that no species dominates the Karapyak waters.
Dostawca treści:: Biblioteka Nauki

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