Lea Jimenez

• Davao Oriental State College of Science and Technology

Various sampling and monitoring strategies have been developed to assess marine habitats and life‐forms. However, the cost‐effectiveness of such survey methods (e.g. line intercept transects and autonomous underwater vehicles) is still not high. In this paper, a practical seafloor habitat mapping method combining a cost‐effective survey system (P‐S...

The reef fisheries in the Philippines are highly affected by various anthropogenic stressors including climate change, marine pollution and fish depletion arising from overfishing. There is a need for continuous monitoring of the fisheries to identify relevant factors that influence the economic and ecological vulnerability of fish-ers concerning c...

Anthropogenic marine debris (AMD) is considered a global threat to the marine environment. Mortality from ingestion or entanglement in AMD is widely reported from marine animals and has harmful impacts on seagrass and corals. The distribution of AMD plays a vital role in its interaction with marine organisms. However, there is little information on...

A variety of tunas of the genus Thunnus are consumed daily in Japan as sliced raw fish (sashimi and sushi). The consumption of fresh sliced raw fish, i.e., unfrozen or uncooked, can sometimes cause food poisoning that is manifested by transient diarrhea and vomiting for a single day. One of the causes of this type of food poisoning has been identif...

The Philippines has one of the most diverse seagrass meadows in south-east Asia, with substantial dugong populations still existing. However, the seagrass population is decliningworldwide, and 30–40% of the seagrass areas in the Philippines have been lost in the last 50 years. The quadrat method by scuba diving has been widely used to study seagras...

Morphological and genetic analyses were performed on four avian species of the subfamily Capillariinae (Nematoda: Trichuridae), i.e., Capillaria anatis from chickens (Gallus gallus domesticus) in Japan and the Philippines, Baruscapillaria obsignata from chickens and captive swans (Cygnus olor and Cygnus atratus) in Japan, Capillaria pudendotecta fr...

We have developed an off-line acoustic video camera system for observation of underwater lives. This system consists of acoustic video camera “DIDSON”, power control unit and frame unit. DIDSON is commercially available acoustic lens-based imaging sonar. It can work even in turbid or dark water where optical systems fail. The power control unit was...

The northern snakehead Channa argus, native to China, Russia and Korea, is currently found widespread throughout Japan following its original introduction during the 1920s. A parasitological study of 10 snakeheads fished from the Fushinogawa River running through Yamaguchi City, Japan, detected 2-101 (average, 23.7) metacercariae per 100 g of trunk...

Longidorus mindanaoensis n. sp. is described from samples associated with riverine mangroves in the Philippines and is the first Longidorus species collected from such a habitat. Its relationship within the genus is inferred from molecular and morphological data. Phylogenetic inferences were performed for D2-D3 and SSU rDNA using appropriate phylog...