Reproduction-temperature nexus influencing spawning of pectinids in tropical and temperate waters
Cabiles, C.D.; Soliman, V.S. (2019). Reproduction-temperature nexus influencing spawning of pectinids in tropical and temperate waters. AACL Bioflux 12(1): 63-72
In: Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society. Bioflux: Constanta. ISSN 1844-8143; e-ISSN 1844-9166, more
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| Author keywords |
thermal shift; latitudinal differences; reproductive biology; culture purposes |
| Authors | | Top |
- Cabiles, C.D.
- Soliman, V.S.
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| Abstract |
This paper aims to summarize the current state of knowledge on key environmental factors in the marine environment influencing reproduction in Pectinidae. Sixteen most relevant published studies were examined as the source of secondary information wherein 62% of which are in temperate waters and 38% are in tropical waters. Spawning of scallops from tropical and temperate environments were reportedly affected by and correlated to mostly variations in water temperature, the most influential factor identified to naturally activate spawning. In temperate waters, about 90% of the spawning of different species occurs during warm months or when highest temperature was recorded (summer), while only 10% of the temperate species reproduce during fall (autumn) when water temperature was decreasing. Similarly in tropical waters, 67% of the spawning activities of scallops occur during warm months with few species spawning during cold months (33%). The transition or shift from cold temperature to warm temperature and vice versa seemingly served as “trigger” to spawning. A strategy to maximize collection of scallop spats for stock enhancement or grow-out mariculture should consider the warm months such as summer (i.e., March, April and May) in the Philippines when aquaculture planning and associated activities are afforded with many advantages. |
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