Intensitas dan prevalensi ektoparasit dan endoparasit pada ikan belanak Liza macrolepis (Smith, 1846) di perairan pantai Barat-Selatan Aceh

The Largescale mullet Liza macrolepis is a common fish found in estuaries and coastal areas and the fish is used as a source of protein by coastal communities. This study aims to analyze the prevalence and intensity of parasitic infected on mullets harvested from the waters of the West - South Aceh. This research was conducted from March to April 2019 in 8 locations, namely; Estuary Aceh River, Gampong Jawa, Banda Aceh city, Coastal Ujong Pancu, Peukan Bada, Aceh Besar, Estuary Teunom River, Calang, Aceh Jaya, Estuary, and Coastal Kuala Bubon, Samatiga, West Aceh, Estuary Nagan River Langkak Kuala Tuha Nagan Raya, Estuary, and Coastal Susoh, Blang Pidie, Southwest Aceh, Estuary and Coastal Indra Damai, Kluet Selatan, South Aceh and Estuary Sua- Sua River and Ujong Umo River, Simeulue. A total of 343 samples were examined for ectoparasites and endoparasites at the Laboratory of Hatchery, Faculty of Marine and Fisheries, Syiah Kuala University. The results showed that there were seven species of parasites, infected the mullet samples namely; Ectoparasites (Cymanthoa sp., Ergasilus sp., Lernanthropus sp., Monstriloida sp., Myxobolus sp.) and Endoparasites (Nematodes and Trematodes). Prevalence value of Kota Banda Aceh was 33% ectoparasites and 28% endoparasites), Aceh Besar was 21% ectoparasites and 15% endoparasites, Aceh Jaya was 4% ectoparasites and 4% endoparasites, Southwest Aceh was 2% ectoparasites and 2% endoparasites, Simeulue was 9% ectoparasites and 9% endoparasites. It is concluded that the higher prevalence and intensity were found in fish samples from Banda Aceh and Aceh Besar, while no fish from Nagan Raya and Aceh Selatan were infected by parasites.Keywords:ParasiteCoastalEstuaryPollutant ABSTRAKIkan belanak Liza macrolepis sering dijumpai di muara dan pesisir pantai dan dijadikan sebagai sumber protein oleh masyarakat pesisir. Saat ini belum ada penelitian terkait jenis-jenis parasite yang menyerang ikan belanak di perairan Aceh, khususnya di pantai Barat Selatan Aceh. Oleh karena itu, penelitian ini bertujuan untuk menganalisis prevelensi dan intensitas parasit pada ikan belanak di perairan Barat Selatan Aceh. Penelitian dilakukan sejak Maret sampai April 2019 meliputi 8 lokasi, yaitu; Muara Krueng Aceh, Gampong Jawa Kota Banda Aceh, Ujung Pancu, Peukan Bada Aceh Besar, Muara Krueng Teunom, Calang Aceh Jaya, Muara Sungai/Pesisir Kuala Bubon, Samatiga Aceh Barat, Muara Krueng Nagan, Kuala Tuha Nagan Raya, Muara/Pesisir Susoh, Blang Pidie Aceh Barat Daya, Muara/Pesisir Indra Damai, Kluet Selatan Aceh Selatan dan Muara sungai Ujong Umo dan muara sungai Sua – Sua, tepah barat dan Simeulu Timur, Simeulu.  Metode digunakan adalah preparat ulas (Smeer method). Sebanyak 343 sampel dibedah untuk dilakukan pemeriksan ektoparasit dan endoparasit di Laborarorium Pembenihan Ikan, Fakultas Kelautan dan Perikanan, Universitas Syiah Kuala. Hasil penelitian ditemukan 7 jenis parasit, ektoparasit (Cymanthoa sp., Ergasilus sp., Lernanthropus sp., Monstriloida sp., Myxobolus sp.) dan Endoparasit (Nematoda dan Trematoda). Nilai prevalensi; Kota Banda Aceh (33% ektoparasit, 28% endoparasit), Aceh Besar (21 % ektoparasit, 15% endoparasit), Aceh Jaya (4% ektoprasit dan 4%endoparasit), Aceh Barat Daya (2% ektoprasit dan 2% endoparasit) Simeulu (9% ektoparasit dan 9% endoparasit). Disimpulkan bahwa prevelensi dan intensitas parasit tertinggi dijumpai pada sampel ikan dari Banda Aceh dan Aceh Besar, sedangkan ikan sampel dari Nagan Raya dan Aceh Selatan bebas dari serangan parasit. Kata kunci:ParasitpesisirMuara sungaiPencemara

Hubungan panjang berat dan faktor kondisi ikan kerapu Famili Serranidae yang tertangkap di Perairan Pulo Aceh Kabupaten Aceh Besar, Provinsi Aceh

The objective of the research was to evaluate the length-weight relationships and condition factors of five dominant species of groupers harvested from Pulo Aceh waters, Aceh Besar District, Aceh Province, Indonesia. The target species are Plectropomus leopardus, P. laevis, P. maculatus, Epinephelus fuscoguttatus and E. bleekeri. The samples were collected from fish landing in Ulee Lheue  and Ujung Pancu from April to July 2016. A total of 40 samples of each species were measured for total length (mm) and weighed for body weight (g). The data were calculated for length weight relationship using an Allometrict Linear Model (LAM). The results showed that Plectropomus leopardus, P. laevis, Epinephelus fuscoguttatus and E. bleekeri have the b values lower than 3 indicate a negative allometric growth pattern, while P. maculatus has the b value higher than 3 indicate a positive allometric growth pattern. The highest condition factor was found in P. leopardus  and P. laevis and the lower condition factor was recorded in E. fuscoguttatus. However, in general the relative weight condition factor was above 100, indicating a balance of prey and predators densities.Telah dilakukan  penelitian tentang hubungan panjang berat dan faktor kondisi lima spesies ikan kerapu Famili Serranidae yang dominan tertangkap di Perairan Pulo Aceh, Kabupaten Aceh Besar. Penelitian ini bertujuan untuk menganalisis pola pertumbuhan dan faktor kondisi lima spesies ikan dari Famili Serranidae dari perairan Pulo Aceh, yaitu; Plectropomus leopardus, P. laevis, P. maculatus,  Epinephelus fuscoguttatus dan E. bleekeri. Sampel ikan adalah hasil tangkapan nelayan yang didaratkan di Ulee Lheue dan Ujung Pancu, sampling dilakukan pada April sampai Juli 2016. Hasil pengukuran panjang dan berat terhadap 40 ekor ikan pada masing-masing spesies dianalisis dengan Linear Allometrict Model (LAM). Hasil penelitian menunjukkan bahwa  Plectropomus leopardus, P. laevis, Epinephelus fuscoguttatus dan E. bleekeri memiliki pola pertumbuhan allometrik negatif dan P. maculatus memiliki pola pertumbuhan allometrik positif. Faktor kondisi tertinggi pada ikan P. leopardus dan P. laevis dan terendah pada ikan E. fuscoguttatus. Faktor kondisi berat relatif secara umum berada diatas 100, menunjukkan adanya keseimbangan kepadatan prey dan predator

LENGTH-WEIGHT RELATIONSHIPS AND CONDITION FACTORS OF THE THREE DOMINANT SPECIES OF MARINE FISHES CAUGHT BY TRADITIONAL BEACH TRAWL IN ULELHEE BAY, BANDA ACEH CITY, INDONESIA

Cilj studije bio je proučiti dužinsko maseni odnos te kondicijske faktore Lutjanus russellii, Aurigequula fasciata i Siganus canaliculatus ulovljenih u Ulehlee zaljevu, u gradu Banda Aceh, u Indoneziji. To su prevladavajuće riblje vrste, ulovljene tradicionalnim koćarenjem s kopna u Ulehlee zaljevu, u gradu Banda Aceh, u Indoneziji. Uzorkovanje je provođeno kroz period od tri mjeseca, od travnja do lipnja 2015. godine u intervalima od tjedan dana. Izmjerene su totalna dužina i masa na ukupno 900 uzoraka riba (300 individua iz svake navedene vrste). Dužinsko maseni odnos izračunat je pomoću linearnog alometrijskog modela (LAM), dok su relativna težina (Wr) i Fultonov koeficijent (K) izračunati kako bi se ocjenilo stanje uzoraka riba. Rezultati su pokazali da b vrijednost (3.04) kod Lutjanus russellii ukazuje na izometričan rast, dok je vrijednost b za Aurigequula fasciata i Siganus canaliculatus iznosila 1.41 i 1.75 te su vrste pokazale alometrijski rast. Prosječan Fultonov koeficijent (K) Lutjanus russellii iznosio je 3.01 kod mužjaka i 2.49 kod ženki. Kod oba spola Aurigequula fasciata K je iznosio 2.92. Uz to, prosječna vrijednost K Siganus canaliculatus iznosila je 2.61 kod ženki i 2.59 kod mužjaka. Općenito, faktori stanja relativne težine obično iznose 100. Zaključeno je da Lutjanus russellii ima izometričan obrazac rasta, dok Aurigequula fasciata i Siganus canaliculatus pokazuju negativan alometrijski uzorak rasta. Kondicijski faktori su u izvrsnom stanju te ukazuju na ravnotežu plijena i predatora.The objective of the present study was to examine the length-weight relationships and condition factors of snapper Lutjanus russellii, ponyfish Aurigequula fasciata and white-spotted spinefoot Siganus canaliculatus harvested from Ulelhee Bay, Banda Aceh City, Indonesia. These species are the predominant fishes caught by traditional beach trawl in Ulelhee Bay, Banda Aceh City, Indonesia. The sampling was conducted for three months from April to June 2015 at one-week interval. A total of 900 fish samples (300 individuals for each species) were measured for the total length and body weight. The length-weight relationships were calculated using Linear Allometric Model (LAM), while the relative weights (Wr) and Fulton’s condition (K) factors were calculated to assess the condition of the fish samples. The results showed that the b value of 3.04 in snapper indicates isometric growth pattern, while ponyfish and white-spotted spinefoot fish had the b values of 1.41 and 1.75, respectively, and these species display an allometric growth pattern. The average Fulton’s condition factor (K) of snapper was 3.01 for male and 2.49 for female; female ponyfish has the K value of 2.92 and 2.92 for male. In addition, the average K value of whitespotted spinefoot was 2.61 and 2.59 for female and male, respectively. The relative weight condition factor ranges from 58.73 to 166.09 for snapper, from 70.55 to 129.65 for ponyfish, and from 71.63 to 133.53 for white-spotted spinefoot. In general, the relative weight condition factors tendedto be 100. It is concluded that snapper has isometric growth pattern, while ponyfish and white-spotted spinefoot display the negative allometric growth pattern. The condition factors are in excellent condition and indicate a balance of prey and predator

Reproductive performance and gonad histopathology of female Nile tilapia (Oreochromis niloticus Linnaeus 1758) exposed to palm oil mill effluent

Palm oil mill effluent (POME) has potential to contaminate the aquatic environment. This paper investigated the reproductive performance and gonad histopathology of female Nile tilapia (Oreochromis niloticus Linnaeus 1758) exposed to POME. Specifically, it examined changes in important parameters of reproductive performance (gonadosomatic index, fecundity, and oocyte diameter) and gonad histopathology. A chronic test was carried out experimentally using a completely randomized design consisting of four treatments with three replicates: treatment control (0 mg/L), treatment A (1.565 mg/L), treatment B (2.347 mg/L), and treatment C (3.130 mg/L). Results indicated that the POME exposure had no significant impact on fecundity of Nile tilapia. Nevertheless, exposure to POME triggered a decline in gonadosomatic index and shrunk the oocyte diameter of Nile tilapia. The histopathology test confirmed that exposure to POME impacted on the occurrence of follicular atresia, disorientation of gonad form, chinion layer depletion and yolk granular degeneration. Keywords: Gonadosomatic index, Fecundity, Oocyte diameter, Degeneration of yolk granul

Length-Weight Relationships and Condition Factors of the Three Dominant Species of Marine Fishes Caught by Traditional Beach Trawl in Ulelhee Bay, Banda Aceh City, Indonesia

The objective of the present study was to examine the length-weight relationships and condition factors of snapper Lutjanus russellii, ponyfish Aurigequula fasciata and white-spotted spinefoot Siganus canaliculatus harvested from Ulelhee Bay, Banda Aceh City, Indonesia. These species are the predominant fishes caught by traditional beach trawl in Ulelhee Bay, Banda Aceh City, Indonesia. The sampling was conducted for three months from April to June 2015 at one-week interval. A total of 900 fish samples (300 individuals for each species) were measured for the total length and body weight. The length-weight relationships were calculated using Linear Allometric Model (LAM), while the relative weights (Wr) and Fulton’s condition (K) factors were calculated to assess the condition of the fish samples. The results showed that the b value of 3.04 in snapper indicates isometric growth pattern, while ponyfish and white-spotted spinefoot fish had the b values of 1.41 and 1.75, respectively, and these species display an allometric growth pattern. The average Fulton’s condition factor (K) of snapper was 3.01 for male and 2.49 for female; female ponyfish has the K value of 2.92 and 2.92 for male. In addition, the average K value of whitespotted spinefoot was 2.61 and 2.59 for female and male, respectively. The relative weight condition factor ranges from 58.73 to 166.09 for snapper, from 70.55 to 129.65 for ponyfish, and from 71.63 to 133.53 for white-spotted spinefoot. In general, the relative weight condition factors tendedto be 100. It is concluded that snapper has isometric growth pattern, while ponyfish and white-spotted spinefoot display the negative allometric growth pattern. The condition factors are in excellent condition and indicate a balance of prey and predator

Haematological responses of nile tilapia (Oreochromis niloticus Linnaeus 1758) to exposure to effluent from palm oil mills

Pollution by palm oil mill effluent (POME) is of great concern in Indonesia. POME pollution of the water can adversely affect aquatic organisms, especially fish. This study aims to analyse the effect of POME on the haematology of tilapia (Oreochromis niloticus), including red blood cells (RBC), white blood cells (WBC), haemoglobin (Hb), Mean Corpuscular Haemoglobin Concentration (MCHC), Mean Corpuscular Haemoglobin (MCH), Mean Corpuscular Volume (MCV) and haematocrit. A random experimental design was used (CRD) consisting of four treatments and five replications, including a Control (0% POME): Treatment A (10% of LC50-96 hours: 1.565 mg l-1), Treatment B (15% of LC50-96 hours: 2.347 mg l-1) and Treatment C (20% of LC50-96 hours: 3,130 mg l-1). The analysis of blood of fish exposed to POME for 15, 30 and 45 days revealed significant effects (p < 0.05) only on Hb and MCH on day 15 and WBC on day 30. This study indicates that exposure to POME can reduce the WBC value of tilapia recorded on day 30 in treatment C to a level lower than that recorded in other treatments. The Hb value recorded for tilapia exposed to POME on day 15 in treatment C was significantly higher than in the other treatments. Furthermore, POME caused a significant decrease in MCH recorded on day 15, with the lowest value recorded in treatment A. Based on the results of this study, POME can cause a significant decrease in WBC recorded on day 30 and MCH on day 15 and increase in Hb on day 15 in tilapia

Length-weight relationships and condition factors of

The peacock hind grouper (Cephalopholis argus) is among several highly exploited grouper fishes globally. Categorized as least concern (LC) in the IUCN, biological data on the species is limited, especially in the Aceh region. This research targeted to investigate the biological features of the C. argus fished on the northern coast of Aceh. The fish samples were collected from Pelabuhan Perikanan Samudera (PPS) Lampulo, Kuta Alam District, Banda Aceh, Aceh from June - September 2020. Overall, 30 specimens C. argus were compiled in this study. The total length (TL) varied between 136.0-284.0 mm, while weight (W) ranged between 46.5-460.0 g. In addition, Fulton's condition (K) ranged from 1.45-4.61, and relative weight (Wr) ranged from 81.75-128.53 g. The LWRs analysis revealed a b value of 3.1329 with a correlation coefficient of 0.94, indicating a positive allometric growth pattern. This study provides length-weight relationships (LWR) and condition factors value for the peacock hind grouper that will assist in building a feasible management of the fish