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Analysis of shortfin scad decapterus Study of Phytoplankton Abundance for the Development of Pearl Oyster Culture Area in the North Gorontalo Watersfisheries in pohuwato gorontalo province

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Andika Julyanto

Academic year: 2023

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1 Phytoplankton abundance study for the development of the pearl oyster cultivation area in the waters of North Gorontal. Phytoplankton abundance study for the development of the pearl oyster cultivation area in the waters of North Gorontal.

Figure 1. Map of The Study Sites Phytoplankton Sampling
Figure 1. Map of The Study Sites Phytoplankton Sampling

The Growth Parameters of Snakehead Fish (Channa striata) in Aopa Watumohai Swamp Waters Pewutaa Village Angata Sub-District South Konawe Regency

The growth parameters of male and female snakehead fish in Aopa Watumohai Swamp differed. According to the results of Kartamihardja (1994), the maximum total length of snakehead fish in Kedungombo Reservoir was 669.3 mm with a growth rate of 0.40 per year.

Figure 1. Map of study site Data analysis
Figure 1. Map of study site Data analysis

Study on Bycatch Fish of Gillnets

Fisheries management of coastal waters is urgently needed because coastal waters have been declared a “coastal waters protection area”. Another management effort is for the local government to provide “local government regulations” based on the coastal zone (spatial) and the season of young and immature fish abundance (temporary).

Figure 1. Location of study in North Moramo of South Konawe Data Analysis
Figure 1. Location of study in North Moramo of South Konawe Data Analysis

Clam (Polymesoda sp.) Density at Various Habitats of Mangrove Forest in Kendari bay Southeast Sulawesi

Densities of clams (Polymesoda sp.) in different habitats of Mangrove forest in Kendari Bay in Southeast Sulawesi. The mangrove species found in Kendar Bay belong to 4 species consisting of Soneratia alba, Rhizophora sp., Xylocarpus sp., and Avicennia sp.

Figure 1. Map of clam sampling at mangrove forest of Kendari Bay.  Sampling stations are marked in black dots
Figure 1. Map of clam sampling at mangrove forest of Kendari Bay. Sampling stations are marked in black dots

IIIII

Through the pedal feeder mechanism, clams sweep whatever food is on the ground floor of mangroves. The substrate is known to provide a strong attachment point in the denser surface, making it a suitable ecosystem for the biological activity of the mussels, and thus for the colonization of adult bivalves (Vaughn et al., 2008).

Figure 7. Relation of clam density and mangrove density in Kendari Bay
Figure 7. Relation of clam density and mangrove density in Kendari Bay

Abundance and Distribution of Plankton to Support a Sustainable Fishing Ground in Staring Bay

The most dominant species found in the sea are Chaetoceros, Bacteriastrum, Rhizosolenia and Biddulphia (Nontji, 2007). The most abundant genera of zooplankton identified in the study were Mysis sp and shrimp larvae.

Figure 1. Sampling locations in Staring Bay
Figure 1. Sampling locations in Staring Bay

Mound Characteristics of Mud Lobster Thalassina Anomala (Herbst 1804) in Coastal Area of Tanjung Tiram, South Konawe - Southeast Sulawesi

The study station was determined using a purposive random sampling method (station interpretation was determined based on the location or area containing a mound and burrow of T. anomala at each observation station). Based on correlation analysis between mound height and burrow depth at each station, a significant correlation (95%) was found, as indicated by the likelihood ratio in the correlation test of javelin throwers of 0.026 less (p < 0.05).

Figure 1. Research Station at Tanjung Tiram of Southeast Sulawesi Materials
Figure 1. Research Station at Tanjung Tiram of Southeast Sulawesi Materials

Spatial Changes and Management of Estuarine Water Quality at the Rawa Aopa Watumohai National Park (RAWNP), Southeast Sulawesi, Indonesia

Summary of average water quality parameters at high tide sampling stations in the Lanowulu and Roraya River estuaries. Summary of the average results at the sampling stations at low tide in the estuary of the Lanowulu and Roraya rivers.

Figure 1. Sampling stations (red color) in the study site at the RAWNP Results and Discussion
Figure 1. Sampling stations (red color) in the study site at the RAWNP Results and Discussion

The Study of Forest Functions in the Posalu Watershed to Water Potensial and Availability of Pelagic Fish Resources in the Wangi-Wangi Island of

The study of forest functions in the Posalu watershed to water potential and availability of pelagic fish resources in the Wangi-Wangi Island of.

Wakatobi Regency

The location of the observation is determined purposefully and with consideration: the forest area is a watershed on Wangi-Wangi Island. Therefore, the forest vegetation area is classified as a critical area (score 270), because the protected forest area is not in equilibrium with the forest area in the Posalu river basin. A study on the dynamic impact of land use on erosion and hydrological status in the Wanggu River Basin.

Table 1. The levels of vegetation density of protected forest in Posalu watershed Structure of
Table 1. The levels of vegetation density of protected forest in Posalu watershed Structure of

Length Frequency, Cohort and Growth of Beloso Fish (Glossogobius sp) in the Waters of Lake Tempe South Sulawesi

This indicates that the length of the fish Beloso in the waters of Lake Tempe is now very small. This study indicates that the size of the Beloso fish in the waters of Lake Tempe is now very small. The length size distribution of the Beloso fish was very small (82 to 231 mm) with three cohorts. The fish population in the waters of Lake Tempe Beloso is under pressure.

Figure 1. Length  frequency distribution of the Beloso fish by location in Tempe Lake
Figure 1. Length frequency distribution of the Beloso fish by location in Tempe Lake

Sustainability Blue Swimming Crab Portunus Pelagicus Fisheries Management Using Fish Capture Control Approach in Southeast Sulawesi Waters, Indonesia

In addition to this scientific reason, there are several economic reasons, namely this MLS is the minimum size of the "jumbo hump", the meat of each BSC is much larger when it reaches a larger carapace width, and the meat processing in the mini factory is much more fast and with low labor costs (La Sara, 2014; La Sara and Astuti, 2015; La Sara et al., 2016b). Some researchers attempted to map the fishing grounds and nurseries of BSC especially in Tiworo Strait (Muskita et al., 2015). The seeds will be kept until juvenile in the nursery.

Figure 1. Collapsible  Crab  Pot  Commonly  Used  by  Fishermen  in  Southeast  Sulawesi  Waters (A
Figure 1. Collapsible Crab Pot Commonly Used by Fishermen in Southeast Sulawesi Waters (A

TOPIC B : AQUACULTURE

Effect of different initial weight on the growth of Gracilaria verrucosa cultured with vertical rope method in brackish water pond

Rajuddin Syamsuddin 2

Growth rate was affected by different light intensities under both low and high nutrient concentrations (Wedchaparn et al., 2015). The uptake rate of NO3-N and PO4-P by G.asiatica under low and high concentrations was affected by light intensity (Wedchaparn et al., 2015). However, in nature, Gracilaria did not live under very high light intensity (Gomez et al., 2005).

Figure 1. Vertical Rope Method of G. verrucosa in brackish water pond (Frontage viewed) Water temperature,    salinity, pH,    and light    intensity,  as  well  as  nitrate, ammonia, phosphate, were monitored daily using thermometer, hand refractometer, s
Figure 1. Vertical Rope Method of G. verrucosa in brackish water pond (Frontage viewed) Water temperature, salinity, pH, and light intensity, as well as nitrate, ammonia, phosphate, were monitored daily using thermometer, hand refractometer, s

Analysis of Water Quality Parameters for Suitability of Seaweed Cultivation in Campalagi Waters, Mallari Vilage, Bone Regency

Station location determination is based on: (1) environmental conditions and use of materials around water bodies; (2) distance from the coast; (3) accessibility. While the location is near aquaculture, although kecerahaannya is still in the area of ​​feasible, but it is not supported by the depth of water, which must be more than 6 meters for seaweed farming activities. Although still within the suitable area for seaweed farming, high nitrate levels are found at stations around seaweed farming and Bulu River estuaries (0.56920 ppm and 0.17690 ppm, respectively).

Table 1 Location and state of observation stations Station Location of The Research
Table 1 Location and state of observation stations Station Location of The Research

The Level of Parasitic Infestation of Caligus sp. in Grouper Transported from Station of Fish Quarantine and Quality Control of Fishery Products (SKIPM)

Kendari

The grouper fish is found in Indo-Pacific waters with up to 110 species and in the waters of the Philippines and Indonesia. Thus, disease initiation is an inappropriate interaction between the environment, the fish and the disease body/organism (Handayani, 2005). According to the statement (Handayani, 2005) the initiation of the disease is an inappropriate interaction between the environment, the fish and the body/disease organism.

Table 1.Total prevalence of Calas sp parasites in October-Desember 2016
Table 1.Total prevalence of Calas sp parasites in October-Desember 2016

TOPIC C : MARINE SCIENCE TECHNOLOGY

Suitability Analysis of Diving Tourism in Seliu Island, Belitung Regency

Anggraini Yunita 2 , Christianingrum 3

The assessment and quality of the Tourism Suitability Index (IKW) for diving is presented in Table 1. The determination of suitability in tourism of Seliu Island is a summary of the data obtained in the field of the data obtained through scoring (based on the collection of field data of abiotics and biotic parameters) which is then depicted in the suitability map of the diving tourism location on Seliu Island (Figure 1). With category S2 (fairly suitable) the community can open diving tourism activities, present Seliu Island as one of the underwater tourism destinations.

Tabel 1. Parameters of diving tour suitability
Tabel 1. Parameters of diving tour suitability

Coral Cover Evaluation on The Impact of Tin Mining and Conventionally Marine Tourism in Bangka Belitung Archipelago Province

This value indicated that the state of the coral reef ecosystem is stable, not at risk. The concept of marine tourism in Lengkuas Island is conventional, because there was no carbonation capacity and carbon patch based, but the condition of the coral reefs was healthy. The loss of coral reefs was caused by the sedimentation of tin mines, as the coral was covered by silt (Si) and turned into peat algae (TA) so that recovery is very difficult.

Table 1. Result of covered community on coral reef in Melantut – Rebo, 2014
Table 1. Result of covered community on coral reef in Melantut – Rebo, 2014

Preliminary Study on Failure of Seaweed Cultivation at Tablolong - Kupang Bay

Effects of liquid mud influx from agricultural runoff on local seaweeds in Kupang Bay are poorly understood due to lack of available information. In this way, the public in municipalities and also the marine environment of Kupang Bay are prevented from being exposed to harmful effects of the waste. Pirzan and Utojo (2017) reported that there is a correlation between the growth of seaweed culture in Kupang Bay for seagrass beds and the condition of coral reefs.

TOPIC D : CAPTURE FISHERIES

Sampo (Sambi-Sambi Pocong), an Environmentally Friendly Octopus Fishing Gear (Case Study: Bulutui Fisherman Village)

Used fishing equipment does not harm the habitat, shelter and breeding of fish and other organisms. The third harmless criterion for fishermen is also fulfilled by this sampo fishing tool. 2 The best fabric color for sampo fishing gear was black with no real brown effect.

Table 1. Result of observation of environmentally friendly fishing gear.
Table 1. Result of observation of environmentally friendly fishing gear.

Analysis on Layang (Decapterus macrosoma) Fisheries in Pohuwato, Gorontalo Province

CPUE : standardized catch per gear effort CPUEi : catch per unit of gear effort at i. The distribution of fishing effort was analyzed by examining the monthly seasonal index (Ij), and revenue per unit of effort (RPUE) was used to predict economic profit. Fishermen can effectively catch fish and regulate the number of fishing fleets and fishing seasons.

Figure 1. Map of study locations
Figure 1. Map of study locations

Selectivity of Fishing Gear and Capture Feasibility of Blue Swimmer Crab (Portunus pelagicus) in Pomalaa Waters

An analysis of the feasibility of catching net crabs by fishermen in terms of biological aspects is based on the size of carapace width (CW) and body weight (BW). The characteristics of the aquatic environment, the blue swimming crab fishing ground that existed in Pomalaa waters is a suitable habitat for crabs. The composition of the net catches driven by fishermen in the study area was used to describe the level of selectivity of the fishing gear.

Figure 1. Description of Measurement of  the  Crab Body Dimension  of  the Pukat  Rajungan Catches.
Figure 1. Description of Measurement of the Crab Body Dimension of the Pukat Rajungan Catches.

Fish Species and Size Distribution of Siganidae Family Caught on Sero Fish Trap at Tondonggeu Coastal Area

A pessian composition of the Siganidae family caught on Sero fish traps at Tondonggeu Water. It is very important to know the distribution of fish species and sizes according to the time and location of fishing. From the results, it can be seen that the size of fish caught on gray fishing gear is in the range of 3.6 cm to 26 cmTL.

Figure 1. Map of research location in Tondonggeu Waters, Kendari City Sampling
Figure 1. Map of research location in Tondonggeu Waters, Kendari City Sampling

TOPIC E : SOSIO-ECONOMIC OF FISHERIES

Contribution of Seaweed Fisherwomen of Bajo Community to Fulfill Consumption of Fishermen’s Household in Southeast Sulawesi

Therefore, a study was conducted on "The Contribution of Seaweed Fishermen in Bajoto, Consumption Needs of Fisherman Families in Southeast Sulawesin". However, the productive capacity of fisherwomen in West Wawonii (1,380 kg/year) was higher than in Kulisusu (1,167 kg/year). The revenue-to-cost ratio is a ratio between production expenses and revenue (or the percentage of profit generated by the seaweed business.) Fishermen in West Wawonii have an R-C value of 1.969, while their counterpart in Kulisusu scored 1,844.

Table 1. Role  Division  Percentage  between  Fisherwomen  and  Fishermen  from  Production Process  to Seaweed Cultivation Products Marketing
Table 1. Role Division Percentage between Fisherwomen and Fishermen from Production Process to Seaweed Cultivation Products Marketing

Impact Analysis of Government Policies on Competitiveness of Skipjack Fishery in Kendari City

Muhammad Nur 2 , Kobajashi Togo Isamu 3

PAM model calculation for skipjack fishing with rod and line gear in 30 GT vessels from March to May 2014. Competitive indicators of skipjack fishing in Kendari on troll line 5-10 GT and pole line 30 GT from March to May 2014. In troll line 5 -10 GT business unit, investment required was much lower than rod and line.

Table 1. Analysis of Policy Analysis Matrix (PAM). Unit price is in IDR
Table 1. Analysis of Policy Analysis Matrix (PAM). Unit price is in IDR

Study on Business Development of Seaweed Community Based on the Order of Revenue Improvement in the Coastal Fisherman of Southeast Sulawesi

Research on business development of seaweed community based on the order of income improvement among coastal fishermen of Southeast Sulawesi. However, until 2014, most seaweed farmers in the area were still low-income and classified as poor, so their standard of living was still relatively low. Based on the results of the analysis and the synthesis and comparison of informants' answers, several problems in the pursuit of community empowerment can be formulated, namely group consciousness, less participation of members and relatively limited knowledge of seaweed farmers in business management.

Table 1. List of Informant Research
Table 1. List of Informant Research

Factors Affecting Revenues of Seaweed Farmers in North Konawe Regency South East (SE) Sulawesi

This research was therefore conducted to find variables that can increase the income of seaweed farmers in the coastal area of ​​North Konawe Regency. Does the land area, business capital and number of working days have a significant effect on seaweed farmers either simultaneously or partially in North Konawe Regency. The independent variables expected to affect the income of seaweed farmers were; farm area (X1), working capital (X2), and labor (X3).

Table 1. Respondents by Age Group No
Table 1. Respondents by Age Group No

Added value development of seaweed (Eucheuma cottonii) as a potential commodity for the prosperity of East Sumba regency communities, East Nusa Tenggara

To overcome these problems, an evaluation study was done on the value addition gained in seaweed culture business to seaweed industry as in Alkali Treated Cottonii (ATC). The seaweed industry in East Sumba belongs to the government of East Sumba (Badan Usaha Milik Daerah or BUMD) under the name PT Alga East Sumba Lestari (Astil). In East Sumba, the added value gained by the seaweed farmer as the impact of the seaweed processing factory was IDR 3,575, while it was about IDR 2,175 at the aggregator and IDR 41,000 at the seaweed industry level (Table 1 ).

Table 1. Mean added value of each seaweed supply chain in East Sumba in 2017.  Unit is in IDR/kg.
Table 1. Mean added value of each seaweed supply chain in East Sumba in 2017. Unit is in IDR/kg.

Correlation of Consumption Patterns and Polymorphism Genes of Angiotensin Converting Enzyme with Hypertension Occurence in Coastal Communities

A study done by Azizah (2010) reported that the insertion/deletion polymorphism of the ACE gene affects the concentration of ACE in the blood and affects blood pressure. Based on the results presented in Table 2, it appears that there was a relationship between the pattern of sodium consumption and the occurrence of hypertension (p=0.000) in the coastal community of the city of Kendar. Manawan (2016) also found that there was an association of sodium intake with the incidence of hypertension (p=0.000) in Tandengan Village Satu District Eris, Minahasa District.

Table 1. Genotype Frequency Distribution and Frequency of Allele ACE I / D genes
Table 1. Genotype Frequency Distribution and Frequency of Allele ACE I / D genes

Business Management of White Shrimp (Litopeneaus vannamei) Farms (Case Study of PT Beroro Jaya Vanname Farms in South Konawe)

Gambar

Table 2. Results of physical-chemical and biological parameter measurements at the study sites
Figure 2. Abundance of phytoplankton in north Gorontalo waters The measurement results of several environmental parameters are presented in Table 2.
Figure 3. Length-weight relationship of the male and female Snakehead fish
Figure 1. Location of study in North Moramo of South Konawe Data Analysis
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