Aqua 1

REVIEW QUESTIONS IN AQUACULTURE 1. This involves fishery operations involving all forms of raising and culturing and in other fisheryfish species fresh, brackish and marine waters a. Aquaculture d. all of the above b. Fisheries e. none of the above c. Aquatic organisms culture 2. Refers to an enclosure which is either stationary or floating made up of netssewn or screens or fastened together and installed in the water with opening on the surface or covered and held in a place by wooden/bamboo posts or various types of anchors and floats. a. Fish pens d. hapas b. Fish cage e. none of the above c. Fish ponds 3. A stage in the life cycle of the fish measuring to about 6-13 cm depending on the species a. Fry d. post-fingerlings b. Fingerlings c. Post-fry

e. none of the above

4. A stage at which a fish has just been hatched usually with sizes from 1-2.5 cm. a. Fry b. Fingerlings c. Post fry d. Post fingerlings e. None of the above 5. An artificial enclosure constructed within a body of water for culturing fish fishery/aquatic and resources made up of poles closely arranged in an enclosure with wooden materials, screen or nylon netting to prevent escape of fish. a. Fish pens b. Fish cage c. Fish ponds d. Hapas e. None of the above 6. A land-based facility enclosed with earthen or stone material to impound water for growing fish.e. a. None b. c. d. Fish Hapas pens ponds cage of the above

7. The taxonomy or identification and classification of Philippine fishes and resources other living aquatic started by the first American group of scientists who came to the Philippines to initiate fisheries work. The American who made extensive collections fish several all over the country andofwrote publication monographs describing the different fish collections is a. Dr. Albert W.C. T. Herre b. Dr. Wallace Adams c. Dr. Alvin Scale d. Dr. Henry Fowler e. None of the above 8. A Filipino, a Zoology graduate from University of Chicago, who wrote the first report in athefirst checklist of Philippine fishes and family Mugilidae, identification protozoans. of marine a. Dr. Hilario A. Roxas b. Dr. Deogracias V. Villadolid c. Dr. Herminigildo Rabanal d. Mr. Domiciano K. Villaluz 9. A Filipino graduate from Stanford University who wrote the firstflatfishes reports on Philippine a. Dr. Hilario A. Roxas b. Dr. Deogracias V. Villadolid c. Dr. Herminigildo Rabanal d. Mr. Domiciano K. Villaluz 10. The father of tilapia sex reversal in the Philippines a. Dr. Tereso A. Abello b. Dr. Rafael D. Guererro III c. Dr. William Shelton d. All of the above e. None of the above 11. The first Philippine University who first initiated fisheries education is a. of the Philippines b. University c. d. e. Central None University Mindanao ofLuzon theState ofabove the State University Philippines Univerityin in the LosVisayas Banos

12. The Bureau of Fisheries and Aquatic Resources (BFAR) started as a small agency 1901 under the in name a. Bureau of Government Laboratories, Department of Interior of the Philippine Commission

b. Division of Fisheries, Department of Interior of the Philippine Commission c. Fish and Game Administration d. Fisheries Division, Department of Agriculture and Commerce e. None of the above 13. The oldest fish culture practice in the Philippines a. Milkfish b. Carp c. Mudfish d. Tilapia e. None of the above 14. The first demonstration fish farm established in 1931 in the Philippines a. wasOyster Farm in Hinigaran, Negros Occidental b. Molino Freshwater Demonstration Fish Farm, Bacoor, Cavite c. Dagat-dagatan Saltwater Fisheries Experimental Station, Malabon/Navotas, Rizal d. Freshwater Fish Hatchery, Laguna de Bay, Tanay, Rizal e. None of the above 15. The first introduction of tilapia was in the 1950’s. the first species of tilapia introduced in the Philippines is a. Oreochromis niloticus b. Oreochromis mossambicus c. Oreochromis aureus d. Tilapia zillii e. None of the above 16. The tilapia species introduced in the 1970’s use for commercial culture in freshwater culture systems is

a. Oreochromis niloticus b. Oreochromis mossambicus c. none d. e. Oreochromis Tilapia of zillii the above aureus

17. This fish species was first reported for culture in the Philippines. Thestarted first culture of the enclosures fish as trapping along the coasts where fry abound, a method that did of notproduction require artificial seeding a. Oreochromis niloticus b. Chanos chanos c. Penaeus monodon d. Channa striata e. None of the above 18. The leading commercial producers of milkfish in the world are a. Taiwan, Indonesia, Philippines b. Taiwan, Indonesia, Thailand c. Indonesia, Thailand, Philippines d. Indonesia, Thailand, Brunei 19. It is a system in bangus culture use to effect stock manipulation and increase stocking rates system a. Modular b. c. d. e.

Transition pond system Nursery system Hatchery system None of the above

20. It is an assemblage of phytoplankton and zooplankton which serves as abrackishwater food for milkfish in ponds a. b. c. d. e.

Lumut Lablab Nostoc Plankton None of the above

21. It is a major farmed penaeid shrimp in the Philippines a. Penaeus mondon b. Penaeus indicus c. Penaeus merguiensis Metapenaeus ensis shrimp species in the country that 22. It is and.illegally-introduced e. the above is now controversy a subject a. None b. c. d. Metapenaeus Macrobrachium Litopenaeus Cherax ofoflegal quadricarinatus indicus ensis rosenbergii

23. A species of tilapia that is cold tolerant and also called as “blue” tilapia a. Oreochromis spilurus b. Oreochromis aureus c. Oreochromis mossambicus d. Oreochromis niloticus e. None of the above 24. A herbivorous tilapia species in the Philippines which is also called as a. Oreochromis galileus b. c. d. e.

Tilapia zillii Tilapia ensis Oreochromis maritimus None of the above

25. Which tilapia species in saline tolerant? a. Oreochromis niloticus b. Oreochromis mossambicus c. Oreochromis aureus d. Tilapia zillii e. None of the above 26. An introduced crayfish from Australia being mass cultured presently in Iloilo, Philippines a. Procambarus clarkii b. c. d. e.

Cherax quadricarinatus Macrobrachium lanchesteri Macrobrachium idella None of the above

27. A herbivorous crayfish species from Louisiana, USA being marketed as afish pettrade in the aquarium industry in the Philippines a. Procambarus clarkii b. Cherax quadricarinatus c. Macrobrachium lanchesteri d. None of the above 28. Which shrimp species indigenous a. None b. c. d. e. Macrobrachium of theisabove rosenbergii ensis idella in Philippine waters? maritimus

“yellow” tilapia

29. A popular aquaculture prawn species whose reproduction and larval rearing saltwater but adultingrows in freshwater a. Macrobrachium rosenbergii b. Macrobrachium idella c. Macrobrachium ensis d. Macrobrachium maritimus e. None of the above 30. A commonly-cultured mudcrab in brackishwater and has a high aquaculture potential and market value a. Scylla serrata b. Scylla tranquebarica c. Scylla olivacea d. Scyll paramamosain e. None of the above 31. The first mariculture park in the country was setup in August 2001 at a. Samal Island, Davao del Norte b. c. d. e.

Honda Bay, Palawan Leyte Zamboanga None of the above

32. A pest of the cultured seaweed Kappaphycus and Eucheuma which is an that covers the affected seaweed. It is locally known as ” or“ grows on epiphyte and entirely balahibo “balbas ” because of its hairy appearance. It competes for nutrients and light of host. sp. a.thePolynia b. Polymorpha sp. c. Polygonum sp. d. Polyponia sp. e. None of the above 33. It is an echinoderm cultured in cages a. Tripneustes gratilis b. Acanthaster planci c. d. Asterias e. None Diaderma of forbesi theantilatum above

34. A dominant carp species cultured in the fishpens of Laguna de Bay a. Hypophthalmichthys molitrix b. Aristichthys nobilis c. Ctenopharyngodon idella d. Cyprinus carpio e. None of the above 35. This is a species of abalone with a good foreign market and its hatchery developedLocally by SEAFDEC/AQD. known as “ lapas ” or “sobra-sobra ”. This species is also called “cocktail abalone” because of its small size (maximum shell length -11 cm). It is the at 10 growing abalone in the world since a marketable size of 5-6 faster cm can be attainedwith in five years for some temperature species. one year compared a. Haliotis asinina b. Haliotis varia c. Halitotis diversicolor d. Haliotisdiscus hannai e. None of the above 36. The leading abalone producer from aquaculture in the world is Taiwan. The species thisabalone country cultured is a. Haliotis asinina b. Haliotis varia c. Halitotis diversicolor d. Haliotisdiscus hannai 37. The largest species of abalone priced as food and extensively m arketed a. Haliotis rufescens b. c. d. e.

Haliotis varia Halitotis diversicolor Haliotisdiscus hannai None of the above

38. A mussel species extensively farmed in the Philippines, Thailand and Newa. Zealand Brown mussel Perna perna b. Green-lipped mussel Perna canaliculus c. mussel Perna viridis d. Green e. None Mussel of Mytilus the above edulis

39. A newly-introduced freshwater (FW) mussel in the country fromPampanga. ThailandAfound humaninfood with aquaculture potential a. Pilsbyochoncha exilis b. Cristaria plicata c. Anodonta woodiana d. Vivipara costata e. None of the above 40. It is a freshwater mussel that can be used as food and for pearl culture. It is called in Japanese as “ karasu ”

a. b. c. d. e.

Hyriopsis schlegeli Hyropsis cumingii Cristaria plicata Andonota woodiana None of the above

41. A saltwater pearl oyster species also called as “” that can tipaybe used for pearl aquaculture in the Philippines. It produces the famous and expensive South pearl a. sea Silver-lipped pearl oyster Pinctada maxima b. “Akoya” pearl oyster Pinctada fucata c. Black-lipped pearl oyster Pinctada margaritifera d. “Mabe” pearl oyster Pteria penguin e. None of the above

42. A saltwater (SW) pearl oyster species also called as “ ” that tipay canbato be used for pearl aquaculture in the Philippines. It produces black pearl a. Silver-lipped pearl oyster Pinctada maxima b. “Akoya” pearl oyster Pinctada fucata c. Black-lipped pearl oyster Pinctada margaritifera d. “Mabe” pearl oyster Pteria penguin e. None of the above 43. It is the fastest growing pearl oyster species (also called as “ used for pearl aquaculture and it produces pink pearls. a. Silver-lipped pearl oyster Pinctada maxima “Akoya” pearl oyster Pinctada fucata b. c. None d. e. Black-lipped “Mabe” of the pearl above pearl oyster oyster Pteria Pinctada penguin margaritifera

”) wasay-wasay that can be

44. A tiny bivalve cultivated in the province of Capiz in the island of Panay, central Philippines as west live feed for shrimp and mudcrab, and sometimes for tilapia and milkfish a. Agiis b. Imbao c. Taklobo d. Tahong e. None of the above 45. A mangrove clam locally known as “ imbao ” which is widely distributed in the-West Indo Pacific, from East and South Africa, including Madagascar and the Red Seam to eastern Polynesia; north to southern Japan and Hawaii, and south to New Souththe Wales. It inhabits muddy bottom of mangrove area, or the adjacent mudflats. grows a shell length, total weight of 180-210 g and maximumItsize 8-9to cm is a potential aquaculture species. a. Anadonta edentula b. Anadonta woodiana c. Anodonta plicata d. Anodota maritimus e. None of the above 46. A bivalve m ollusk locally call ed”, as commercially “ kapis and economically important because of its translucent shell. They can be made into beautiful handicrafts can be usedandforthey making animals glue, chalk, shellack, soldering lead, and product paint. The shellcraft is exported to US, Japan, West Germany and other European countries. They can be cultured or transplanted in suitable areas and there arethe 27Philippines kapis beds in a. Placuna placenta b. Tridacna gigas c. Conus geographus d. Helmet shell e. None of the above 47. A freshwater gastropod that belongs to the family Pilidae that wasPhilippines introducedininthethe 1980’s as a source of food but eventually became pest rice fields in a. Pomacea cuprina b. Pomacea insularis c. None d. e. Pomacea of the cananiculata maxima above

48. A pond system design that allows for the continuous program of pondharvest preparation and in brackishwater (BW) but this system is input of m ilkfish and labor intensive and requires an area of about 8 hectares. a. Traditional pond system b. Modular pond system c. Nursery pond system d. Transition pond system 49. It is method in harvesting milkfish where fish swim against the current and fish confined in that the are supply canal or catching area are seined or scooped. This is applicable for both partial and total harvesting a. Pasubang method b. current method c. all of the above d. None of the above 50. A parasitic isopod that is a major pest in the cage culture of Nile tilapia ina.Taal Lake typus Alitropus b. c. d. e.

Lernea sp. Prosthodisplosthomum sp. Monogean parasite Digean parasite

51. A fungus-associated disease that affects FW and estuarine warm water fishes that was first reported in farmed ’ in “Japan ayu and severe outbreaks occurred in grey mullet Mugil cephalus Australia. Some important culture species such as tilapia, carps aremilkfish found toand be resistant to this disease a. Epizootic ulcerative syndrome b. Lymphocysts c. Spring viranemia d. Haemorrhagic septicemia e. None of the above 52. Oyster species commonly cultured in the Philippines a. Crassostrea gigas b. Crassostrea virginica c. None d. e. Crassostrea of the chungmuengsisi pacifica above

53. A kind of mycotoxin found in feeds a. Aflatoxin b. Fungal toxin c. Neurotoxin d. Cytotoxin e. None of the above 54. The ratio of feed consumed to the fish biomass gained is called a. Feed conversion ratio b. Food conversion ratio c. Feed conversion efficiency d. Food conversion efficiency e. None of the above 55. The physiological capacity of the fish to convert feeds to fish flesh is termed a. Feed conversion efficiency b. Feed conversion ratio c. Energy feed efficiency d. Feed conversion e. None of the above 56. Fishes with no stomachs have a. No acid phase of digestion b. Acid phase of digestion with long intestine c. Extensive intestine d. None of the above 57. In fishes with stom ach, the transport of food from the stomach into by thea midgut is sphincter called controlled muscular a. Pylorus b. Esophageal sphincter c. Midgut sphincter d. None of the above 58. The stomach of voracious fish produces pepsin and the pH is a. 4325 of the above b. All c. d. e.

59. For carnivorous (e.g. trout and dalag) and non-carnivorous (e.g. tilapia carp)practices fishes, are as follows theand feeding a. Large meals and less frequent feeding and small meals and more frequent feeding, respectively b. Small meals and less frequent feeding and large meals and less frequent feeding, respectively

c. Large meals and have frequent feeding, respectively d. None of the above 60. Tilapias rank second to milkfish as the most extensively cultured finfish in the country’s inland waters. In the Philippines, tilapia culture began with the introduction in the 1950s of a. Oreochromis niloticus b. Oreochromis mossambicus c. Oreochromis aureus d. None of the above 61. A rapid growing and m ore attractive tilapia species was introduced in 1972. Improvedcaused the tilapia farming industry’s rapid growth inmidthe management technologies 70s. This tilapia species is a. Oreochromis niloticus b. Oreochromis mossambicus c. Oreochromis aureus d. None of the above 62. The tilapias are cichlid species which are endemic to the a. Middle East and Africa b. Asia and Africa c. Southeast Asia and the Pacific d. All of the above 63. Among the ten main species of tilapia of importance to aquaculture, the most preferred for culture because of its rapid growth, high tolerance to crowding and poor water quality is the a. Oreochromis niloticus b. Oreochromis mossambicus c. Oreochromis d. None of the above aureus

64. Although this tilapia is very prolific in its reproduction, it is m ost preferred for culture BW because of in its tolerance to high salinity. Moreover, high salinity prevents reproduction. This tilapia is a. Oreochromis niloticus b. Oreochromis mossambicus c. Oreochromis aureus d. None of the above 65. Growth of Oreochromis niloticus is favorable at 15-30 ppt provided acclimation is breeding of this species is at salinity adequate. Depressed a. <10 ppt b. >20 ppt c. >15 ppt d. All of the above 66. One of the major problems in tilapia culture is its a. Early sexual maturity b. Poor tolerance to water quality c. Low yield d. All of the above 67. Sex of tilapia influences its growth. Female fish tends to use up its energy forthan male fish. Thus the sex of tilapia that grows faster is reproduction the a. Female b. Male c. Fry having undifferentiated sex d. All of the above 68. Sex reversal is one of the methods to produce all male tilapia. This method is done by the oral administration of the hormone called a. 17 a -methyl testosterone b. Diesterol alpha c. Methyl androgen d. All of the above 69. The currently most available effective in andthepractical Philippines method and ofalso producing becoming monosex widely maleTaiwan adopted population a. None b. c. d. e. Manual Sex Hybridization Genetic isincalled reversal Israel of sexing manipulation the and above of sex

70. The YY male technology has been developed with the main objective producing males of with a YY genotype to be used as m ale breeders for the production of allor The production of YY males has been achieved nearly all-male progeny. through a. Feeding with female hormone b. c. d. e.

Manipulation of sex hormones Administration with androgen treatments All of the above None of the above

71. The chromosomes of the normal male and female tilapia are a. XY and XX, respectively b. XX and XY, respectively c. XY and YY, respectively d. None of the above 72. The chromosome of the super male tilapia is a. XY b. XX c. YY d. All of the above e. None of the above 73. The progeny of the YY males crossed to normal females are called a. Genetically male tilapia (GMT) b. GIFT tilapia c. GET 2000 tilapia d. FAST tilapia e. None of the above 74. The most common production system to produce tilapia fingerlings in the Philippines is a. Tank-based b. Hapa-based c. Pond-based d. None of the above

75. This method of fingerling production system is done in small backyard hatcheries ashatcheries. The pond serves both for spawning and larger commercial nursing. used for Ponds this method of fingerling production tend to be similar to thoseusually used for growout, with minimum water depth of one meter. This method of hatchery system ispond-based a. Extensive b. Semi-intensive pond-based c. Intensive pond-based d. None of the above 76. This hatchery system uses open ponds, smaller and shallower in dimension (usually 10x20 m and water depth of 40-60 cm). Hatcheries employing this system separate nurseryuse ponds which are usually similar in form to the breeding ponds. In this fingerlings are system, nursed in hapas and cages in which case deeper ponds are required for these. As a general rule of thumb, one nursery pond is required for every 3-4 breeding ponds of the same size. This hatchery system is called a. Extensive pond-based b. Semi-intensive pond-based c. Intensive pond-based d. None of the above 77. Using the method of num ber per unit area of stocking breeders in the pond, allowing the at the 1:3 sex ratio number of breeders a. 1 breeder per 2-4 m 2 b. 2 breeders per 2-4 m 2 2 c. 3 breeders per 2-4 m d. None of the above 78. The two systems for intensive tilapia hatchery production systems are a. Hapa based and tank based production systems b. Hapa based and pond based production system c. Recirculating tanks and pond based production systems d. All of the above 79. The fry stage of tilapia has an age and mean weight of a. 1 week and 0.01 to 0.05 g, respectively b. weeks and and 1.5 0.06 0.1g,g,respectively respectively c. 5324 weeks d. e. 0.2 0.5 toto2.0 0.4 1.0

80. The post-fry stage of tilapia has an age and mean weight of a. 1 week and 0.01 to 0.05 g, respectively b. 2 weeks and 0.06 to 0.1 g, respectively c. 3 weeks and 0.2 to 0.4 g, respectively d. 4 weeks and 0.5 to 1.0 g, respectively e. 5 weeks and 1.5 to 2.0 g, respectively f. b and c only 81. The fingerling stage of tilapia has an age and mean weight of a. 1 week and 0.01 to 0.05 g, respectively b. 2 weeks and 0.06 to 0.1 g, respectively c. 3 weeks and 0.2 to 0.4 g, respectively d. 4 weeks and 0.5 to 1.0 g, respectively e. 5 weeks and 1.5 to 2.0 g, respectively f. d and e only 82. The inverted mosquito nets used to rear breeders and fingerlings are called a. Hapa b. c. d. e.

Fish nets B-net All of the above None of the above

83. This fish is an important cultured fish in Taiwan, China, the Philippines and Indonesia that can adapt itself to MW and FW conditions a. Tilapia b. Catfish c. Common carp d. Milkfish e. None of the above 84. The natural food of milkfish fry and fingerlings under cultivation consists of and the animals found in the bottom of the ponds known microscopic plants as a. Plankton b. Lablab Lumut 85. The c. a.female b. c. d. All Sabalo Liwalo Breeder None ofbroodfish of thethe above above of milkfish is called locally as

86. Carp culture in the Philippines dates back to 1915 with the introduction of a. Common carp Cyprinus carpio b. Grass carp Ctenopharyngodon idella c. Silver carp Hypophthalmichthys molitrix d. None of the above from China. The fish was stocked in Lake Lanao in 1915, Laguna de Bay and buhi, Bato andLakes Baao in 1925, and Paoay Lake in 1927. 87. This carp came from Indonesia and is a weed-eating fish that has become in theestablished rivers of Luzon and Mindanao as well as Laguna de Bay. It is not afish popular food because of its bony flesh a. Common carp Cyprinus carpio b. Tawes Puntius gonionotus c. Grass carp Ctenopharyngodon idella d. None of the above 88. This is another carp species known as “ genguro buna ” in Japan a. Common carp Cyprinus carpio b. Tawes Puntius gonionotus c. Crucian carp Ctenopharyngodon idella d. None of the above 89. The species of catfish with a tender flesh is a. Thai catfish Clarias batrachus b. Asian catfish Clarias macrocephalus c. African catfish Clarias gariepinus d. None of the above 90. The artificial spawning of carps and catfish is administered using a. Hormone b. Chromosomal manipulation c. Injected chemicals d. None of the above 91. Another species of catfish found only in Laguna de Bay is called a. African b. c. d. Keeli Kanduli None catfish ofcatfish Arius the above manilensis Clarias gariepinus

92. There are five species of gourami introduced in the Philippines. One having of thesea scientific is the name of giant gourami a. Trichogaster pectoralis b. Osphronemus gouramy c. Trichogaster trichpterus d. Trichogaster leeri e. None of the above 93. There are about 20 species of mullets identified in the Philippines. Of these mulletspecies, havingthe the most economic importance is a. b. c. d.

Grey mullet Mugil cephalus Banak Mugil dussumieri None of the above

94. This is a unique fish that can be found in the rice fields of the Cordillera. a. Misgurnus anguillicaudatuss b. Cyrprinus carpio c. Oreochromis niloticus d. None of the above 95. Animal manures are used a organic fertilizers in fish ponds. Based on the chemical composition, the organic manure having the richest nutrients is the a. Fresh pig manure b. Chicken manure c. Duck droppings d. Carabao manure e. None of the above 96. The two major systems of rice-fish culture are a. Captural and cultural b. Concurrent and rotational c. Simultaneously rice-fish culture d. All of the above 97. When fish and rice grown simultaneously, the type of culture ricefish system a. A b. c. d. e. All Concurrent None Rotational isand called of of B theonly the above culture culture above

98. The GMT Nile tilapia is a genetically m odified organism (GMO) a. True b. False c. None of the above 99. These are living materials the genetic material of which have beenbyaltered modified any ofor the varieties of modern biology to make them capable of producing new substances or perform new functions. a. Genetically modified organisms (GMO) b. Genetically manipulated organisms c. Genetically improved organisms (GIO) d. None of the above 100. The process by which all factors associated with the importance of live fishaquatic and organism are assessed for negative, positive or no other impact of government the Philippine a. Import risk analysis (IRA) b. Import assessment analysis (IAA) c. Import risk assessment d. None of the above 101. A certificate issued by an exporting country’s competent authority or ainstitution BFAR attesting to the health status of a shipment of recognized im ported fishorganism and other aquatic a. Import risk analysis certificate b. Health certificate c. Quarantine certificate d. Importation certificate e. None of the above 102. Which among the species of mudcrab prefers higher salinity a. Scylla serrata b. Scylla tranwuebarica c. Scylla olivacea paramamosain 103. It d.is Scylla considered a mangrove-friendly aquaculture where there e. None of the above is the useintegrated a. b. c. d. of mangrove Aqua-mangrove Aqua-forestry Aquasilviculture and culture aquaculture culture crab culture

e. All of the above 104. Locally called “giant crab”, greenish in color with white polygonal markings on swimming the and walking legs, cheliped, carapace and with orange claws. It is species a goodin mangrove areas. aquaculture a. Scylla serrata b. Scylla tranwuebarica c. Scylla olivacea d. All of the above e. None of the above Locally named as “ pulang alimango ”, that is deep green to grayish green in color. 105. A good aquaculture species in mangrove areas a. Scylla serrata b. Scylla tranwuebarica c. Scylla olivacea d. All of the above e. None of the above 106. There are 7 stages in the life cycle of mudcrab such as eggs, zoea, megalopa, instar, juvenile, sub-adult and adult. How m any stages are there in the zoeaa.stage 3 b. 4 c. 5 d. 7 e. None of the above 107. The stages of mudcrab that feed on zooplankton are a. Zoea and megalopa b. Megalopa and instar c. Zoea, megalopa and instar d. Zoea, megalopa, instar and juvenile e. None of the above 108. The two kinds of seaweeds popularly cultured because of its export value a. Eucheuma dendiculatum and Kappaphycus b. All c. d. e. Gracillaria None Caulerpa of of thethe racemosa above and above Macrocystis and Codium luzonensis alvarezii

109. Biological factors such as pests and diseases can determine the failure successoforthe seaweed enterprise. Control or elimination of undesirable and seaweeds (epiphytes) disease is important to maintain the sustainability of the crop. Thesymptom most common of malaise which applied to the white segments that appear between branches usually in the more basal parts of the thalli and caused by low salinity, temperature and light intensity a. Ice-ice disease b. Die-off c. Tip discoloration d. Tip darkening e. Pitting f. None of the above 110. It is an echinoderm that grazes on the thalli of Kappaphycus a. Tripneustes b. Echinothrix c. Asterias d. Leptosynapta e. All of the above f. None of the above 111. The most commonly maricultured species are a. Milkfish and rabbitfish b. Green groupers and rabbitfish c. Seabass and rabbitfish d. All of the above e. None of the above 112. The most commonly cultured green groupers are a. Epinephelus malabaricus b. Epinephelus salmoides c. Epinephelus luzonensis d. Epinephelus tauvina e. A and B only f. CDonly g. BNone h. C and and of the onlyabove

113. Managers of seafood restaurants prefer groupers culture in this because environment they have less fat and they will not “burst” when deep fried. a. Brackiswater ponds b. Cages c. Tanks d. Nets e. All of the above f. None of the above 114. Groupers are fed with trash fish if this is cheap or a combination of trash fish and the commercially-available formulated fish crumbles. The ratio of trash fish to formulated feed is a. 60:40 b. 50:50 c. 40:60 d. 70:30 e. None of the above 115. Rabbitfishes are also called a. Groupers b. Siganids c. Milkfish d. All of the above e. None of the above 116. The two aquaculture species of siganids found in the Philippines a. Siganus guttatus and Siganus vermiculatus b. Siganus luzonensis and Siganus mindorensis c. Siganus canaliculatus and Siganus siganus d. None of the above 117. A mariculture species that can adapt to high salinity and FW a. Seabass Lates calcarifer b. Panther Criomeileptis altivelis c. Humback wrasse Cheilinus undulates d. None theTridacna above 118. The a. mollusk b. c. d. e. A Oyster Mussel Green Giant and of clam Bmussel Crassostrea Myytilus mariculture only Perna edulis spp. in virides gigas the Philippines is dominated by

f. C and D only 119. The two species of oyster that are widely-cultivated in the Philippines are oyster Crassostrea iredalei a. Slipper b. c. d. e. f.

Common oyster Crassostrea malabonensis Cup-shaped oyster Crassostrea gigas A and B only B and c only None of the above

120. The oyster mussel capitals in the Philippines based on the estimated potential areas for culture are a. Pangasinan and Samar, respectively b. Iloilo and Batangas, respectively c. Pangasinan and Pampanga, respectively d. Bulacan and Pampanga, respectively e. None of the above 121. The milkfish capital of the Philippines based on its highest production is a. Iloilo b. Pangasinan c. Pampanga d. Sulu 122. The tilapia capital of the country because of its high production a. Nueva Ecija b. Isabela c. Pampanga d. Bulacan e. Laguna f. None of the above 123. In the Philippines, induced spawning of this lapu-lapu species was first reported a. Epinephelus malabaricus b. Epinephelus salmoides c. amblycephalus d. Epinephelus e. None Epinephelus of the above sexfasciatus

124. Culture studies of the squid Sepioteuthis tessoniana and cuttlefish Sepia sp.1978 wereat conducted from a. Mindanao State University b. University of Philippines in the Visayas c. Bicol University d. Iloilo School of Fisheries