Thynnichthys thynnoides adalah salah satu ikan air tawar yang menghuni Danau Teluk Petai Desa Buluh Nipis Kecamatan Siak Hulu Kabupaten Kampar . Sebuah penelitian bertujuan untuk memahami informasi tentang analisis saluran pencernaan dan hubungannya dengan ukuran, jenis kelamin, dan kondisi lingkungan. Penelitian ini telah dilakukan pada Maret 2019 hingga April 2019. Sampel ikan ditangkap mengg…
Periphyton is a sessile microscopic organism that attach on submerged substrates. A research aims to determine the type and abundance of periphyton attached in the used tyre pieces placed in the Air Hitam River substrate has been carried out in April-May 2018. There were three sampling stations, namely S1 (in the upstream), S2 (in the middle) and S3 (in the downstream). Samplings were conducted…
Motan fish (Thynnichthys thynnoides) are found in the Bay of Petai Lake, Buluh Nipis Village, Kampar Regency. This study aims to examine the growth patterns exist in otolith. This research was conducted in March-April 2019. Sample fish were captured using gillnet and sempirai fishing gear. The sampled fish is 95 tails (59 males and 36 females). Otolith (sagita) is sharpened and the growth circ…
Motan fish (Thynnichthysthynnoides) is one of the fish most found in the lake of Petai. This research was conducted in March until May 2019. Samples were captured using net. Sampling is done 5 times in 3 months. The reproductive biology aspects measured were sexual characteristics, sex ratio, gonadal maturity level, gonadal maturity index, fecundity, and egg diameter. The sample is 109 tails (7…
Carrying capacity is defined as the ability of aquatic environment to support the life of organisms in that area. A study aims to assess the extensive fishing carrying capacity of the FPK reservoir based on primary productivity (chlorophyll-a content), has been conducted in November-Desember 2018. There were 3 stations, namely Station 1 (inlet area), Station 2 (in the middle of the reservoir) a…
AKAP Reservoir was built to store excess water during the rainy season and as a recreation destination. A research aims to understand the limnological condition in the AKAP Reservoir based on physical-chemical parameters was conducted from March-April 2018. There were 4 sampling stations, namely Station 1 (inlet), Station 2 (in the middle, 2.5 m depth), Station 3 (in the middle, 1.5 m depth) an…
In the Bilah River. Negeri Lama Village, sand mining activities are conducted. These activities negatively affects the river in general as turbidity increased and thus affects the fish community structure in that river. A study aims to understand the community structure of fish from that area has been conducted in July to August 2018. The fish was sampling from 3 sampling points, 3 times, once…
Fish feed pellets that enter the water around the floating net cage may affects the feeding habit of wild fish living around the cage. To understand the stomach content of fish living around the floating net cage in the Koto Panjang Dam, a study has been conducted on December 2018. Samplings were conducted 3 times, once/ 2 weeks and the fish were captured using gill net and lure, in the sur…
Mystus nigriceps is a type of freshwater fish that live in the Tarai river. This research aims to understand the stomach content of the fish. Samplings were conducted in the Tarai River, 5 times, once/2 weeks for a three months period. The fish was captured using nets, scoop nets and bamboo trap. The number of fish caught was 102, but 4 fishes had empty stomach and they cannot be analyzed. The…
Mystus nigriceps is freshwater fish that inhabit the Tarai River. A research aims to understand the morphometrical, meristical characteristics and growth pattern of this fish had been conducted from January to March 2019. Sampling were conducted in the Tarai River, using cast net , scoop net and bamboo trap, six times, once/ two week. Result shown that there were 102 fishes (70.93-181.21 mm TL…
Seagrass is present in the Genting Beach. During the low tide, however, propeler of fishermen ship damage the seagrass habitat in general. To understand the types and density of seagrass in Genting Beach, a study has been conducted in April – June 2018. There were 3 sampling points, in the river mouth of the Genting River (SP I), in the shipping line (SP II), and in the mangrove area (SP III)…
Batang Arau River received organic matter from domestic activities conducted around the river. As the load capacity of a river is limited, any load addition may damage the ecosystem in the river. The aims of this study is to determine the capacity of the organic pollution load of the Batang Arau River based on the BOD5 and COD content. This research was conducted in January 2018. There were 5 s…
Clarias batrachus is a freshwater fish that inhabit the Tapung Kiri and Sail Rivers. The water quality in the Tapung Kiri River is relatively good, while that of the Sail River is polluted. As the water quality in general affects the blood condition of the fish, it is predicted that blood condition of C. batrachus from the Tapung Kiri and Sail Rivers are different. A research aims to unde…
Pangasius hypophthalmus is a type of freshwater fish that inhabit the Sail River that is polluted and the Tapung Kiri River that has relatively good water quality. As the water quality in general affects the blood condition of the fish, it is predicted that blood condition of P. hypophthalmus from the Tapung Kiri River and the Sail River different. A research aims to understand blood condition …
There are several human activities such as fishing and palm plantation around the Pekak Lake and thus the pollutant originated from those activities may enter the water and affects the trophic state of the lake. The Trophic Index (TRIX) can be used to determine the trophic status of the water based on chemical and biological parameters. A research aims to understand the trophic status of the Pe…
Puntioplites bulu is a type of freshwater fish that commonly inhabit the Batang Mahat River, Riau. A study aims to understand the reproductive biology of P. bulu has been conducted. The fish was sampled 6 times, second/month, from January to March 2019. Parameters measured were sex ratio, gonad maturity level, gonad somatic index (GSI), fecundity and egg diameter. Results shown that there were…
Zoobenthos can be used as bioindicator of water quality. A study aims to understand the structure of zoobenthos community in mangrove area of the Mengkapan village has been conducted in November - Desember 2018. Zoobenthos were collected manually, namely S1 (around the oil pipe), S2 (residential area) and S3 (natural area). Water quality parameters measured measured were temperature, pH, sal…
The research was conducted on November 2018 untill February 2019 in UD Dika Putra tofu industry. The research aimed to analyze the condition of tofu industry waste water, the efffectivenes of stabilization ponds in improving the waste water quality and the effects of discharged waste waste in tarai river. The method used in this research was survey method. Parameter measured were temperature, p…
Phytoplankton was sensitive to the environmental changes, and therefore it might be used as bioindicator. A research aims to understand the diversity of phytoplankton in the swamp area of the Sawah Village was conducted on July to August 2018. There were 3 stations with 3 sampling points in each station. Samples were taken 3 times, once/week, in 3 different stations, namely S1 (natural area),…
Marine debris is a type of pollutant that commonly found in the mangrove ecosystems. A research aims to determine the composition and density of marine debris in the mangrove ecosystem of the Sungai Rawa Village was conducted in June - July 2018. A survey method was used in this study. Samplings were done three times (once / 2 weeks) at 3 stations namely S1 (ecotourism area), S2 (natural mangro…