Effects of temperature on behavior, growth, development and survival of young milkfish, Chanos chanos Forsskal

The effects of 3 temperature treatments on activity, feeding, growth, development and survival of young milkfish (Chanos chanos) were investigated under laboratory conditions. It is believed that the results may be applied to develop a land-based mass production technology in rearing milkfish fry to fingerlings

Effects of temperature on behavior, growth, development and survival of young milkfish, Chanos chanos Forsskal

The effects of 3 temperature treatments on activity, feeding, growth, development and survival of young milkfish (Chanos chanos) were investigated under laboratory conditions. It is believed that the results may be applied to develop a land-based mass production technology in rearing milkfish fry to fingerlings

FIGHTING FOR THEIR PLACE IN BRAVE SPACES: UNCOVERING THE TRAVAILS OF THE CLOSETED POLICE OFFICERS

In law enforcement and correctional agencies, sexual orientation and gender identity-based harassment and employment discrimination remained persistent until today. Moreover, there is stereotyping involved in the issue of being closeted in the law enforcement agency. This study aims to provide a comprehensive understanding of the experiences, challenges, and struggles faced by closeted officers in law enforcement organizations. The study’s participants are closeted police officers, who were chosen through snowball sampling, while data were collected via interview guide questionnaires. The study employs a qualitative phenomenological research approach, focusing on what people experience concerning certain significant life events and how they perceive those occurring. Thematic analysis was employed as the chosen qualitative data analysis approach. The study revealed that closeted gay police officers needed to adjust and adapt themselves to the workplace dynamics to fit in while balancing their values to stay true to themselves. The participants also experienced discrimination, stereotypes, and bullying. The significance of this study is to understand better the experiences, challenges, and struggles of closeted police officers; specifically, to explore their lived experiences in law enforcement organizations, document the difficulties the respondents have faced and the coping techniques they used to overcome the significant challenges in their professions and document how the closeted police officers project themselves during police operations. JEL: J15, J71, J78, Z13  Article visualizations

In a Good Way: Advancing Funder Collaborations to Promote Health in Indian Country

Funders continue to be challenged by how to best promote work in American Indian communities that builds health equity, addresses community context, and reduces the disproportionate impact of commercial tobacco. In particular, public health programs that address substance abuse and tobacco control promote the use of evidence-based practices that tend to emphasize a one-size-fits-all approach and that are rarely researched among American Indian populations. These practices, therefore, lack cultural validity in those communities. This article examines how three organizations collaborated on work to control commercial tobacco use in Minnesota’s Indian Country, and shares lessons learned on how they came to incorporate tribal culture, respect traditional tobacco practices, and acknowledge historical trauma to inform their grantmaking

How to transport and acclimate prawn fry

The manual describes the procedures and techniques to follow for short and long duration transport of prawn fry. Regulations for acceptance and handling of wet shipment and the acclimation of the fry are also covered

Disease investigation of transported Chanos chanos stocked in Laguna Lake, Philippines

Milkfish,Chanos chanos fingerlings transported by boat (petuya) for seven to eight hours were observed for stress-inducing factors during transport, daily for 10 days after stocking in pens in Laguna Lake, Philippines. Handling, hauling, and crowding of fish contributed to stressful conditions. Likewise, the transport procedure of the clising the water entry hole at the bottom of the boat to block water exchange was associated with decreased dissolved oxygen and increase tubidity, with respective values of 2.4 mg/l and 79 Formalin Turbidity Units when water change was possible. In addition , marked and abrupy fluctuations in salinity from 15 to 30 ppt then 0 ppt within 1 to 3 hr were observed during transport. Although moralities during transport were minimal, subseqeunt deaths after stocking in pens mounted to not less than 2.4%. Reddish snout, scale loss and hemorrhagic areas along the lateral body surface wwere observed. Bacterial counts of water increased significantly during trasnport when water exchange was stopped. Kidney and skin/muscle specimens yielded significantly higher bacterial counts on days 2, 3, 5 and 8 poststocking predominated by Aeromonas hydrophila biovar hydrophila and two species of gram-negative bacilli phenotypically resembling Pseudomonas sp

Vegetational analysis in the lahar devastated area of Barangay Mancatian, Porac, Pampanga

A vegetational analysis was conducted in the lahar devastated town of Barangay Mancatian in Porac Pampanga to determine existing vegetation. Two sets of collections were done. The size of the plots for the first and second collection were 1 x 1 m. and 0.5 x 1 m. (determined through the Species Area Curve), respectively. The first collection had 19 species while the second collection had 10 species. Among the species collected during the two samplings were Brachiaria mutica, Bulbostylis barbata and Saccharum spontaneum which emerged as the dominant species. Physical parameters for light intensity, wind velocity, relative humidity, air and soil temperature were determined. The average of three readings for each parameter was obtained during the three sampling periods and was found to be 30.78 mph for wind velocity, 32.06 centigrade for air temperature, 34.78 centigrade for ash-soil temperature, 75.70% relative humidity and 32.61 fc. for light intensity. Ash-soil texture on the average was generally coarse, while moisture content was 13%. Obtained values for pH (6.12), Organic matter (Trace), Phosphorus (2.4), Potassium (62.4) and Nitrogen (Trace) were all analyzed at the Bureau of Soil and Water Management

Milkfish fry and fingerling resources of Sri Lanka

This report was partially supported by the Canadian International Development Research Centre under Project No. 3-P-78-0033.Sri Lanka has the milkfish (Chanos chanos) seed and water resources for the development of milkfish aquaculture as a new industry. Milkfish fry and fingerlings are present in all surveyed coastal wet lands, but are abundant in Mannar and Puttalam regions. The species enter tidal pools as larvae and develop into juveniles of about 50 mm. FL in one month. The fry and fingerlings are caught with seine net in tidal pools, transported in plastic bags and stocked in ponds and/or lakes. Mortality ranges 2-100% during transport; 2-15% during acclimatization; and 40-50% after 3 weeks in holding tanks. Careful handling and the application of appropriate transportation, acclimatization and nursing procedures would reduce mortality considerably

Survival and metamorphosis of Penaeus monodon larvae at different salinity levels

The survival rates of Penaeus monodon nauplii, protozoea and mysis abruptly exposed to salinity of 12, 16, 20, 24, 28, 36, 40 and 50 ppt were determined and compared. Larvae kept at 32 ppt, the spawning or initial rearing salinity, served as the control. The effect of the salinity treatments on the rate of metamorphosis of each larval stage was also investigated by determining and comparing the time needed for 50% of the larvae to molt to the succeeding stage (MT50). Results showed that at the naupli stage, significantly higher (P<0.01) survival was obtained at 32 and 36 than at 28 ppt. However, survival at 28 ppt was still significantly higher than in the rest of the treatments. The MT50s at salinity levels of 28 to 36 ppt were similar. At the protozoeal stage, similar survival and MT50 values were obtained at 28 to 40 ppt. In all other test salinities, total mortality of the protozoea occurred. Within the salinity range of 20 to 36 ppt, the mysis exhibited similar survival rates but metamorphosis was significantly faster at 28 and 32 ppt, as shown by the lower MT50 values

Studies on the egg quality of Penaeus monodon Fabricius, based on morphology and hatching rates

Contribution no. 70 of the Aquaculture Department, Southeast Asian Fisheries Development Center.Eggs of Penaeus monodon are classified into five different types on the basis of morphological criteria and hatching rates — A1 eggs undergo normal development with 58% hatching rate; A2 eggs show delayed and/or abnormal development with 32% hatching rate; and B, C and D eggs are unfertilized and do not hatch. Wild (unablated) females have the highest proportion of A1 eggs and highest hatching rate, followed by ablated wild stock; ablated pond stock show the lowest proportion of A1 eggs and the lowest hatching rate. There is a highly linear relationship between the percentage of A1 eggs and the hatching rate in spawnings from ablated females of both pond and wild stock. Discussion concentrates on the development of these egg types, comparison with other studies and the importance to hatchery operations of these findings