Silliman Journal, Volume 33Silliman University, 1986 - Learning and scholarship |
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Page 47
... occurred spontaneously and 13 ( 72.2 % ) were induced with serotonin only , macerated gonad only , or both ( Table 1 ) . All spontaneous spawnings occurred in 1985 , involving an unknown number of clams . In four of these spawnings ...
... occurred spontaneously and 13 ( 72.2 % ) were induced with serotonin only , macerated gonad only , or both ( Table 1 ) . All spontaneous spawnings occurred in 1985 , involving an unknown number of clams . In four of these spawnings ...
Page 67
... occurred on two occasions , 28 February , 1985 and 15 October , 1985 . one The two spontaneous spawnings were observed to occur at the first quarter and a day after the new moon . Of the induced spawnings during which fertilized eggs ...
... occurred on two occasions , 28 February , 1985 and 15 October , 1985 . one The two spontaneous spawnings were observed to occur at the first quarter and a day after the new moon . Of the induced spawnings during which fertilized eggs ...
Page 69
... occurred , indicating the start of the pediveliger stage . Settlement occurred on day eight , and pediveligers were seen crawling on the bottom on day nine . Closing and opening of valves , elongation of foot and presence of umbo were ...
... occurred , indicating the start of the pediveliger stage . Settlement occurred on day eight , and pediveligers were seen crawling on the bottom on day nine . Closing and opening of valves , elongation of foot and presence of umbo were ...
Contents
A Preliminary Study of the Effect of Supplementary Feeding on | 111 |
FlatHeaded Bats Mammalia Tylonycteris from the Philippine | 117 |
Observations on the Rearing of the Fish Siganus Guttatus Bloch | 124 |
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Alcala Alcazar algae algal amphibians Aquaculture aquaria Batan Island batch biology bivalves Bivalvia Bohol Borneo Cagayan canaliculatus Cebu Island cells Central Visayas Chlorella coral reefs crocea culture CuSO4 derasa Dumaguete City Dumaguete City 6501 duration FD FD FD FD/AQ fish Fitt forest species Forsskal frequency frogs giant clams gigas gonad growth rate habitats Heslinga Hippopus hippopus induced Isochrysis juveniles Kaloula larvae larval rearing leucomystax LITERATURE CITED Luchavez lunaris Luzon macerated gonad macracanthus mariculture Marine Laboratory mating calls maxima Nitzschia number of pulses observed pachypus Palau Palawan pediveligers Philippines ponds Popper predation pulses per call range recorded region released sperm reported salinity sampling sea water seagrasses short calls Siganidae Siganus canaliculatus Siganus guttatus Silliman Journal Silliman University slow rattle calls Spawning induction specimens squamosa substrate Table tanks Tetraselmis toxic Tridacna tridacnid clams Tridacnidae Tylonycteris USNM veligers Western Visayas