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National Committee on Marine Sciences (NCMS)

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AGROVOC Keyword: search.filters.agrovoc.lobster cultureHas files: No

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    Survival, growth and food conversion efficiency of Panulirus ornatus following eyestalk ablation
    Juinio–Meñez, Marie Antonette; Ruinata, Jesselita (Elsevier BV, 1996-11)
    The viability of eyestalk ablation as a means to enhance the growth of juvenile spiny lobsters in commercial growout cultures was investigated in a 4-month experiment. Three replicate groups of small-sized (86.3–94.4 g total weight; 44.1–46.6 mm carapace length (CL)) Panulirus ornatus were subjected to three experimental treatments: unablated/control, unilateral and bilateral eyestalk ablation. Only animals which were initially at the intermolt stage were used in the experiments. The average food conversion efficiency (12–17%) and monthly growth rates of bilaterally ablated lobsters, based on both total weight (42.0–64.0 g) and carapace length (6.7–7.0 mm CL) increments, were significantly higher than lobsters in the two other treatments during the first 2 months of the experiment but declined thereafter. At the end of the experiment, only 6% of the bilaterally ablated lobsters (n = 48) survived compared with 73% and 75% for unilaterally ablated and unablated lobsters, respectively. The extreme sensitivity of bilaterally ablated lobsters to water quality and diet renders bilateral ablation impractical for commercial growout culture. The high survivorship and generally higher growth rates of unilaterally ablated lobsters compared with unablated lobsters resulted in the highest gross yield among the three treatments. The results indicate that unilateral ablation may be a viable option to consider in accelerating the growth of small juvenile P. ornatus to a marketable size of 200–300 g.
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    BFAR bans harvest of juvenile mangrove crabs, spiny lobsters
    Ochave, Revin Mikhael D. (BusinessWorld Publishing Corporation, 2020-04-27)
    The Bureau of Fisheries and Aquatic Resources (BFAR) said it has banned the harvest of juvenile mangrove crabs and spiny lobsters to prevent overfishing and implemented a registration system for fishermen harvesting these resources. In two separate fisheries administrative orders, the BFAR sought to regulate the trade in the two species, and required members of this fishery, including growers and collectors, to be registered with and certified by their local governments. “The catching of their juveniles and fry are intended for aquaculture seed stock that will be cultured for grow-out and harvested for food. Others, at the very minimum, are harvested for research purposes,” BFAR Information Officer Nazario C. Briguera said in an e-mail.
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    Fishing village survives 'pork' scam
    Rodriguez, Ma. Cecilia (Philippine Daily Inquirer, Inc., 2015-06-20)
    With open arms, fisherman Alejo Gratico and his neighbors welcomed two men from a nongovernment organization (NGO) who arrived in Surigao City in 2008. At last, help finally came to the remote fishing community in Sitio Pag-ayawan in Day-asan village, Gratico thought. “They promised to give us 100 lobster fingerlings. That would fetch some P25,000. They said it was a grant from the BFAR (Bureau of Fisheries and Aquatic Resources). All we had to do was to sign documents,” Gratico recalled. Orprecio said that apart from providing a sustainable source of income for fisherfolk, the long-term impact of the project was increasing the production and providing a steady supply of quality aquaculture products, such as lobsters, to the local and export markets.