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Ovarian development and serum steroid hormone profiles in hatchery-bred female catfish Clarias macrocephalus (Gunther) during an annual reproductive cycle
(Japanese Society of Fisheries Science, 1997)
Ovarian development e.g. gonadosomatic index, oocyte diameter, fecundity, histology, and related steroid hormones e.g. testosterone (T), estradiol-17 β (E<sub>2</sub>), 17α, 20 β-dihydroxy-4-pregnen-3-one (DHP), were ...
Isolation of Vibrio spp. from Penaeus monodon (Fabricius) with red disease syndrome
(Elsevier, 1997)
From January 1990 to June 1993, 59% of the total juvenile to adult shrimp Penaeus monodon submitted for diagnosis at the Fish Health Section of the Aquaculture Department, Southeast Asian Fisheries Development Center, ...
Bacterial flora in the hepatopancreas of pond-reared Penaeus monodon juveniles with luminous vibriosis
(Elsevier, 1998)
Quantification and characterization of bacterial flora in the hepatopancreas (hp) of pond-reared Penaeus monodon juveniles affected with luminous bacteria were conducted in 1994 and 1995. Shrimp samples were taken from 23 ...
Agar yield and gel strength of Gracilaria heteroclada collected from Iloilo, Central Philippines
(Walter de Gruyter, 1992)
Seasonality of yield and gel strength of agar from Gracilaria heteroclada was determined. Gel strength was high (510-794 gm cm<sup>-2</sup>) during early dry season (October-March) and low (43-101 gm cm<sup>-2</sup>) during ...
Induction of sex change in female Epinephelus coioides by social control
(Society of Israeli Aquaculture and Marine Biotechnology, 1997)
Mature female groupers (Epinephelus coioides) of different sizes were stocked in three floating net cages (2 fishes each) and in tanks (2-4 fishes) to induce sex change in the bigger female grouper after isolation from the ...
Studies on the reproductive biology of the Donkey's ear abalone, Haliotis asinina Linné
(Elsevier, 1998)
The sex ratio, initial size at sexual maturity, spawning period, time interval between successive spawnings and fecundity of the Donkey's ear abalone, Haliotis asinina were studied. The sex ratio of wild abalone (>60 ...
Fish farming in marine pens and cages in the Philippines: appropriate technology?
(Society of Aquaculture Engineers of the Philippines, Inc., 1998)
Contributed as Discussant in Technical Session 3 on Environmental Impacts of Marine Fishcage Farming, 12th Annual Meeting of the Society of Aquaculture Engineers of the Philippines, Inc. (SAEP), held at the BFAR-National ...
Mudcrab pen culture in mangroves
(Society of Aquaculture Engineers of the Philippines, Inc., 1998)
Over the years, commercial production of mudcrab, Scylla spp, has been undertaken only in bamboo or net-fenced brackishwater ponds. Its feasibility was proven through series of verification trials conducted in commercial ...
Turbidity and seawater intrusion in Laguna de Bay
(Springer Verlag, 1991)
The ecological role of seawater intrusion in Laguna de Bay is assessed due to the operation of the Napindan Hydraulic Control Structure (NHCS). Turbidity is recognized as one limiting factor in the lake's biological ...
Assessment of stocks of a natural Gracilaria population on Panay Island, Philippines
(Walter de Gruyter, 1991)
Two peaks in biomass were recorded from natural beds of Gracilaria sp. at Leganes, Iloilo and Batan, Aklan study sites. The major peak occurred in February 1989 for both areas. The minor peak occurred in September 1988 at ...