Hadi Hamli

Universiti Putra Malaysia | UPM · Department of Animal Science and Fishery

Marine gastropods can be considered a biological indicator of the ecosystem's health, such as intertidal areas. The objectives of this study are to identify marine gastropod species, diversity, and distribution along the coastal area of the Bintulu Division. The study was conducted in December 2021. A 50 m transect was laid perpendicular to the coa...

As the gentle ripples of our aquatic realms caress the shores of scientific discovery, there lies a mesmerizing world waiting to be unveiled—a realm teeming with life, complexity, and ecological marvels. Within this realm, where the seemingly small and insignificant hold the keys to vast ecological mysteries, Aquatic Invertebrates and Ecosystem Res...

The study aims (1) to isolate and characterise the heterotrophic bacteria from different rivers in Bintulu, Sarawak, (2) to investigate the hygienic condition of the rivers through faecal coliforms and (3) to determine the antibiotic resistance among the heterotrophic bacteria isolates. A total of 100 heterotrophic bacteria strains were identified...

Freshwater Gastropoda can be considered as the biological indicator in ecosystems such as rivers, streams, lakes, and ponds. The objectives of this study are to identify freshwater gastropod species, diversity, and distribution along Sungai Penebak, Sungai Nanga Tiga, and Sungai Kabo in the Betong division. The study was conducted on 10 November 20...

Macrofaunal diversity and composition are essential to understanding the ecosystem structures and functions of mangroves in any dynamic estuarine coast. To understand the temporal distribution of macrofaunal community structures and diversity on the surface sediment in the intertidal mangrove forest next to the seagrass beds, this study was conduct...

The Setipinna breviceps is a commercially important and highly esteemed food fish. This species has scant of scientific formation particularly on population parameters like growth, mortality and recruitment. The present study aimed to estimate the body indices and population parameters of Setipinna breviceps of Batang Lassa Estuary (BLE). Samples w...

The diversity and composition of macrofaunal communities are important components to understand the mangrove ecosystem structures and functions. To understand the seasonal distribution of macro-infaunal community and diversity, this study was conducted from July 2019 to February 2020 in the intertidal mangrove forest of Punang-Sari-River estuary, L...

The Swinhoe's softshell turtle, Rafetus swinhoei (Gray, 1873),) is one of the world's largest freshwater turtles, and possibly the most endangered turtle species on the planet (Stanford et al., 2018). It has an overall length of over 100 cm and a width of up to 70 cm, and it can easily weigh up to 70–100 kg, maximum weight was recorded at 169 kg (S...

Reduction of aquaculture operations and production cost is key to the success and profitability of this enterprise, while protein needs, especially the cost of fish meal, are cery expensive. The current study was conducted to investigate the post-larval production performance of Heteropneustes fossilis using Lucilia sericata maggot as a fish meal r...

Molecular study is important to detect variations and similarities among species from the same genus, in case if they do not encompass any morphological or physiological differences. The study was conducted to differentiate among species of Meretrix spp. (Meretrix lyrata, M. meretrix, and M. lusoria) obtained from two locations in Malaysia through...

The aquatic gastropods (marine and freshwater) in Malaysian Borneo (MYB) have an ancient history of 255 years, while the first record was observed in 1767 by the pioneer Carl Linnaeus. Over time, many European, native taxonomists and conservationists have worked on the diverse group of gastropods in the Malaysian part of Borneo (states of Sabah and...

The fly larvae (Lucilia sericata) are being used as an alternative protein source in any kind of animal feed as it reduces the cost of preparation of feed. This current study focused on the physico-chemical and proximate properties of raw poultry waste, while this study also revealed the production process of fly larvae and the proximate compositio...

Snapper shrimp is a symbiotic organism usually hidden under the rocks, sponges and pen shells in the seagrass and coral habitats. The relationship study within snapper shrimp and pen shell was conducted from Merambong shoal, one of the biggest seagrass beds in peninsular Malaysia. A total of 40 individual pen shells were collected randomly and four...

Information on fisheries resources in East Malaysia is scarce and poorly known. The current review aims to compile a checklist of fisheries resources in the Northwest Borneo (Sarawak, Malaysia) from available published literature, address the resources' present status, and suggest future monitoring needs for selected critical species. The study als...

Area of the Coral Triangle (CT), namely Indonesia, Malaysia, Papua New Guinea, Philippines, Solomon Islands, and Timor-Leste, comprises 5.7 million km2 of the Pacific Ocean. It is one of the most bio-diverse marine eco-regions on the planet, as well as a global hotspot for seagrass species. Many sea creatures of this eco-region rely on the seagrass...

Groundwater meets the majority portion of drinking water needs, particularly in the rural area of Bangladesh. Groundwater has been continuously contaminated by potentially harmful metals as a result of natural processes as well as some anthropogenic activity, creating a variety of health impacts. The current research aimed to evaluate the naturally...

The regular assessment of faunal diversity near the energy power plant has gained the interest of many researchers. The activity and the effluent discharged from the power plant have remarkably stressed the adjacent assemblage of the alpha biotic community surrounding the power plant. Hence, this study aimed to assess the alpha faunal diversity of...

The length-weight relationships (LWRs), condition factor (Kn), growth, mortality and exploitation status of three polynemid fishes, i.e ., Filimanus xanthonema (Valenciennes, 1831), Polynemus melanochir (Valenciennes, 1831) and Polynemus paradiseus (Linnaeus, 1758) from Batang Lassa River estuary were estimated. Fish samples were caught during Apri...

The sustainable use of fisheries resources is a major concern for coastal resource management. Malaysia is endowed with vast coastal fisheries resources which contribute about 1% to national GDP. Sarawak is the major state of Malaysia having high potentials for coastal fisheries. This study was conducted from December 2018 to May 2019 to inquire th...

Species checklists enlist the species existing within a distinct geographical biome and assist as an indispensable input for evolving conservation and administration strategies. The arenas of conservation ecology and biology face the challenge of exaggerated biodiversity, accredited to the non-recognition of taxonomic inconsistencies. The study’s g...

The unique biodiversity in Malaysia makes this country a global hotspot for different aspects of research. Many European and non-native research activities are conducting by different research groups, whereas local institutions also collaborate with them to explore the pristine nature of west (peninsular Malaysia) and East Malaysia (Sarawak and Sab...

The current study was conducted to investigate the proximate minerals composition and microbial assessment of smoked hilsa (Tenualosa ilisha) with salt, lemon leaves extract, lemon juice and peel treatments under laboratory conditions. A total of 50 fresh hilsa fishes were collected from Meghna River, Bangladesh and were used for this study, with f...

Diversity and morphometry of edible, bivalve and gastropod classes of molluscs were investigated from July 2010 to January 2012, for a particular set of bivalve species, at selected coastal divisions of Sarawak including Kuching, Sibu, Mukah, Bintulu, Miri, Limbang, and Lawas. A total of 41 edible species were recorded and identified from 11 famili...

The Batang Lassa Estuary is an important deltaic estuary located in north-western Borneo island of East Malaysia. The study was conducted to assess the ichthyofaunal diversity by ESBN sampling in spatio-temporal scale, governed by ecological variables. About 24km of the Batang Lassa Estuary connected with the South China Sea was divided into three...

Aquaculture medicines, drugs, and chemicals or simply AMDC, are critical in protecting aquaculture farmers from disease in farmed animals and economic losses. The AMDC is now a well-established industry in Bangladesh, and each year, new products that benefit farmers are launched. This review examined published research information on AMDC over the...

Seagrass habitats are considered to be some of the most biodiverse ecosystems on the planet and safeguard some ecologically and economically important fauna, amongst which are some globally threatened species, including dugong. Malaysian seagrass ecosystems are not widespread, but their existence supports some significant marine fauna. A rigorous z...

ABSTRACT Species checklists enlist the species available within the defined geographical region and thus serve as an essential input for developing conservation and management strategies. The fields of conservation biology and ecology confront the challenge of inflated biodiversity, attributed to non-recognition of taxonomic inconsistencies. Our...

Present study dealt with the on faunal and in faunal assemblage from seagrass bed, mangrove area, and adjacent non-mangrove and seagrass (NMS) in Punang-Sari estuary, Lawas, Sarawak, Malaysia. Samples were collected from June to July 2019 using quadrates and handpicking from the outside the sampling area to know the real checklist of surface macrof...

Gastropod and Bivalves are widely known as filter feeders which used to feed the phytoplankton and other micro creatures. This study was conducted to identify, isolate and determine the potential culture of phytoplankton species for mussel culture. Materials and Methods: The phytoplankton identification and the culture of phytoplankton in ponds in...

Pachychilidae is one of the freshwater gastropod family which was previously known under the Potamididae and Thiaridae families. Studies on freshwater gastropods especially on conchcology examinantions are still inadequate compared to marine gastropods. Morphological and morphometric studies of gastropods are practically used to identify and differ...

Background and Objective: Gastropoda communities are the most diverse class of mollusc and considered as foremost constituent in the freshwater ecosystems and fisheries economy. However, there is knowledge gap and documentation of freshwater gastropods (Caenogastropoda) in Malaysia particularly in Sarawak. Therefore, this study was performed to ide...

Malaysia is endowed with vast coastal fishery resources which contributes ~1% in national GDP. Sarawak is the major state of Malaysia having high potential coastal resources. The study was conducted from December 2018 to May 2019. The purpose was to update current status of the coastal fisheries, and to identify gaps for further research and measur...

Hard clams are found to overwhelm the benthic territory from the remote oceans in the marsh region, especially the tropical region. It is a filtered feeder that feeds upon microorganisms, debris and dissolved primal matter as the metabolic vitality hotspot for development. The abundance of food source caused mariculture of hard clam a possible prac...

Condition Index (CI) was used to estimate the reproductive biology cycle of the hard clam Meretrix lyrata based on dry body weight and shell weight. High CI value was observed due to the increase in the body weight of the hard clam that corresponding to the maturity stage and early spawning. The CI value of M. lyrata from Buntal Village, Kuching, S...

The morphology and 12 shell morphometric features proportionate to shell length were analysed between local hard clam; Meretrix lyrata, M. meretrix and M. lusoria from Sarawak, Malaysia. Meretrix spp. was observed to comprise a unique feature of a pallial sinus scar for each species. Analysis of variance revealed significant differences among Meret...

A study of the reproductive cycle of the hard clam, Meretrix lyrata, was documented based on histological observation and Gonad Index (GI). Samples were taken from estuarine waters of the Buntal River in Sarawak, Malaysia. The gonad of M. lyrata started to develop in September 2013. Gametogenesis continued to develop until the maturation and spawni...

Three common species of Corbiculidae (Polymesda erosa, P. bengalensis and P. expansa) can be found inhabiting the mangrove areas in Southeast Asia. The morphometric variations of three species were examined based on 15 morphometric characters. A total of 16 populations from six localities were analyzed in the present study. Analysis of variance had...

Aquaculture contributes about 20% of domestic fish production in Malaysia. Tilapia has been identified as one of the main species for freshwater aquaculture in the Third National Agriculture Policy (DPN3). However, feed cost and water quality management remain as two major challenges to the industry. This study aim to analyse the effects of Ferment...

Sarawak comprises of vast areas of wetland which is the habitat of huge number of edible gastropods. Among the wetland faunal composition, the edible gastropod is one of the important sources of animal protein for the local communities. This diversity of edible gastropod was studied from seven Divisions of Sarawak namely Kuching, Sibu, Mukah, Bintu...

Diversity of edible mollusc was studied at eight divisions of Sarawak from August 2010 to May 2011. At each division, diversity and number of species were collected from road site selling out lets and local wet markets. Total number of mollusc was comprised of 29 species namely Solen regularies, S. lamarckii, Pharella acutidens, Anadara granosa, Ph...

The diversity of edible bivalve was conducted from August 2010 to July 2011 covering1 eight Divisions i.e., Kuching, Sarikei, Sibu, Mukah, Bintulu, Miri, Limbang and Lawas of Sarawak, Malaysia. Samples were collected from native market and fishing village during the study period. All edible bivalves inhabit either in brackish or marine environment...