Successive spawning of grouper, Epinephelus suillus (Valenciennes), in a tank and a floating net cage
Wild Epinephelus suillus (Valenciennes) were collected in 1989 to early 1990. To monitor natural spawning in captivity, 6 mature females (3.5–5.0 kg) and 4 mature males (7–12 kg) were transferred to a 4.6×4.6×2 m concrete tank, and one mature female (5.3 kg) was paired with two spermiating males (6....
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| Veröffentlicht in: | Aquaculture 1993-09, Vol.115 (3), p.361-367 |
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| creator | Toledo, Joebert D. Nagai, Akimasa Javellana, Danilo |
| description | Wild
Epinephelus suillus (Valenciennes) were collected in 1989 to early 1990. To monitor natural spawning in captivity, 6 mature females (3.5–5.0 kg) and 4 mature males (7–12 kg) were transferred to a 4.6×4.6×2 m concrete tank, and one mature female (5.3 kg) was paired with two spermiating males (6.0–6.5 kg) in a 4×4×3 m floating net cage. Spontaneous spawning occurred successively 5–17 times a month from July 1990 to June 1991 (except in May) in the tank and 5–10 times a month from July to October 1990 in the floating net cage. The number of eggs collected, mean fertilization rate and mean hatching rate in the tank and the floating net cage each month ranged from 0.5–15.8 million and 2.3–3.9 million, 67–88% and 72–89%, and 2–81% and 29–68%, respectively. The onset of the monthly spawning cycle in both holding systems was observed over a period of 3 days either before or after the last quarter moon. The results indicate that a minimum number of
E. suillus broodstock are required for a year-round supply of fertilized eggs. |
| doi_str_mv | 10.1016/0044-8486(93)90149-S |
| format | Article |
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Epinephelus suillus (Valenciennes) were collected in 1989 to early 1990. To monitor natural spawning in captivity, 6 mature females (3.5–5.0 kg) and 4 mature males (7–12 kg) were transferred to a 4.6×4.6×2 m concrete tank, and one mature female (5.3 kg) was paired with two spermiating males (6.0–6.5 kg) in a 4×4×3 m floating net cage. Spontaneous spawning occurred successively 5–17 times a month from July 1990 to June 1991 (except in May) in the tank and 5–10 times a month from July to October 1990 in the floating net cage. The number of eggs collected, mean fertilization rate and mean hatching rate in the tank and the floating net cage each month ranged from 0.5–15.8 million and 2.3–3.9 million, 67–88% and 72–89%, and 2–81% and 29–68%, respectively. The onset of the monthly spawning cycle in both holding systems was observed over a period of 3 days either before or after the last quarter moon. The results indicate that a minimum number of
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Epinephelus suillus (Valenciennes) were collected in 1989 to early 1990. To monitor natural spawning in captivity, 6 mature females (3.5–5.0 kg) and 4 mature males (7–12 kg) were transferred to a 4.6×4.6×2 m concrete tank, and one mature female (5.3 kg) was paired with two spermiating males (6.0–6.5 kg) in a 4×4×3 m floating net cage. Spontaneous spawning occurred successively 5–17 times a month from July 1990 to June 1991 (except in May) in the tank and 5–10 times a month from July to October 1990 in the floating net cage. The number of eggs collected, mean fertilization rate and mean hatching rate in the tank and the floating net cage each month ranged from 0.5–15.8 million and 2.3–3.9 million, 67–88% and 72–89%, and 2–81% and 29–68%, respectively. The onset of the monthly spawning cycle in both holding systems was observed over a period of 3 days either before or after the last quarter moon. The results indicate that a minimum number of
E. suillus broodstock are required for a year-round supply of fertilized eggs.</description><subject>Animal aquaculture</subject><subject>Animal productions</subject><subject>Animal reproduction</subject><subject>Aquaculture</subject><subject>Biological and medical sciences</subject><subject>CAGE</subject><subject>CAGES</subject><subject>CISTERNAS</subject><subject>CITERNE</subject><subject>EPINEPHELUS</subject><subject>FECONDATION</subject><subject>FECUNDACION</subject><subject>FERTILIZATION</subject><subject>Fish</subject><subject>Fundamental and applied biological sciences. 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Psychology</topic><topic>JAULAS</topic><topic>Marine</topic><topic>OVA</topic><topic>OVIPOSICION</topic><topic>OVIPOSITION</topic><topic>OVULE</topic><topic>OVULO</topic><topic>Pisciculture</topic><topic>PONTE</topic><topic>TANKS</topic><topic>Vertebrate aquaculture</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Toledo, Joebert D.</creatorcontrib><creatorcontrib>Nagai, Akimasa</creatorcontrib><creatorcontrib>Javellana, Danilo</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Chemoreception Abstracts</collection><collection>Environment Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Aquaculture Abstracts</collection><collection>ASFA: Marine Biotechnology Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Marine Biotechnology Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><jtitle>Aquaculture</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Toledo, Joebert D.</au><au>Nagai, Akimasa</au><au>Javellana, Danilo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Successive spawning of grouper, Epinephelus suillus (Valenciennes), in a tank and a floating net cage</atitle><jtitle>Aquaculture</jtitle><date>1993-09-01</date><risdate>1993</risdate><volume>115</volume><issue>3</issue><spage>361</spage><epage>367</epage><pages>361-367</pages><issn>0044-8486</issn><eissn>1873-5622</eissn><coden>AQCLAL</coden><abstract>Wild
Epinephelus suillus (Valenciennes) were collected in 1989 to early 1990. To monitor natural spawning in captivity, 6 mature females (3.5–5.0 kg) and 4 mature males (7–12 kg) were transferred to a 4.6×4.6×2 m concrete tank, and one mature female (5.3 kg) was paired with two spermiating males (6.0–6.5 kg) in a 4×4×3 m floating net cage. Spontaneous spawning occurred successively 5–17 times a month from July 1990 to June 1991 (except in May) in the tank and 5–10 times a month from July to October 1990 in the floating net cage. The number of eggs collected, mean fertilization rate and mean hatching rate in the tank and the floating net cage each month ranged from 0.5–15.8 million and 2.3–3.9 million, 67–88% and 72–89%, and 2–81% and 29–68%, respectively. The onset of the monthly spawning cycle in both holding systems was observed over a period of 3 days either before or after the last quarter moon. The results indicate that a minimum number of
E. suillus broodstock are required for a year-round supply of fertilized eggs.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/0044-8486(93)90149-S</doi><tpages>7</tpages></addata></record> |
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| ispartof | Aquaculture, 1993-09, Vol.115 (3), p.361-367 |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Animal aquaculture Animal productions Animal reproduction Aquaculture Biological and medical sciences CAGE CAGES CISTERNAS CITERNE EPINEPHELUS FECONDATION FECUNDACION FERTILIZATION Fish Fundamental and applied biological sciences. Psychology JAULAS Marine OVA OVIPOSICION OVIPOSITION OVULE OVULO Pisciculture PONTE TANKS Vertebrate aquaculture |
| title | Successive spawning of grouper, Epinephelus suillus (Valenciennes), in a tank and a floating net cage |
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