KADUNUNG Radio Program presents Scallops and Scallop Fishery of Asid Gulf Masbate.

Monday September 13,2021

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Month 3 [Topic 7: Scallops]

Welcoming the month of April after the Holy Week, the KADUNUNG-Bicol program had consistently imparted knowledge to their listeners, with Scallops as the topic of the week on April 5 to 7 and 9, 2021 discussed through radio broadcasting at SKY Radio 93.1 FM.

Scallops are marine mollusks in the Pectinidae family. These are bivalve mollusks, which means the interior muscle is surrounded by two shells, like oysters, mussels, and clams. Scallops have a white adductor muscle (the part we eat) inside that opens and closes the shell. The name scallop refers to the rigid shell pattern and fanned shape of the shell. Scallops can have up to 200 eyes on their mantle. These eyes, which can detect light, dark, and motion, can be of a brilliant blue color. They use their retinas to focus light, similar to how the cornea in human eyes does. Scallops are locally called as kapis (tagalog), tikab, and paypay in bikol.

On April 5, 2021, Prof. Antonino Mendoza led the talk on the Biology and Ecology of Scallops. Before moving on to the main topic, he shared some facts about the species. This includes the fact that the name "scallop" is derived from the Old French escalope, which means "shell," and that the scallop is the only bivalve mollusk that can "jump" and "swim." He then enumerated and focused on the scallop species found in the Philippines. Bractechlamys vexillum (tikab), Mimachlamys sanguinea (tikab de color), Mimachlamys funebris (tikab dakula), Mimachlamys gloriosa, and Annachlamys striatula (paypay) are the five commercially important scallops in Asid Gulf, Masbate.

Dr. Alex Camaya presented the next day and spoke about his team's project, "State of Scallop Fishers and their Knowledge of Natural Resource Management in Asid Gulf, Masbate." They conducted a survey for the fishermen, which revealed that scallop fishers in the Gulf are multi-aged, mostly 30 to 40 years old, married, and rely primarily on fishing for a living. “Scallop fishers remain economically impoverished, and have lower years in school as they have less opportunity to formal education”, said Dr. Camaya. The survey also included questions about fishermen's basic knowledge of climate change, as well as their awareness of its occurrence and impact on the scallop fishery.

The next day, Mr. Ian Chris Buban, an instructor at Bicol University Tabaco Campus discussed the Stock Assessment, Production and Harvesting of Scallops which he had his study. He started his discourse by explaining the significance of scallop resource in Asid Gulf as well as the reasons on why we have to manage those resources. Mr. Buban also presented the production and exploitation data of scallops in the said gulf. With this, he then enumerated the types of overfishing as applied to scallop resources which includes growth overfishing, recruitment overfishing, economic overfishing and ecosystem overfishing. With all the problems that contribute to the decline of scallop production, Mr. Buban introduced a process called mariculture, listing why it is necessary to be conducted. He claimed that together with the suite of management options, mariculture has the potential for lessening the dependence on natural scallop population while increasing production potential of the resource.

Aside from siganids, Dr. Leony Barbacena and team also studied the Indigenous Knowledge of Fishers on Scallops in Asid Gulf.  Due to their unavailability to attend in the radio broadcasting, Prof. Mendoza was the one who discussed the matter. He cited ten of the noted indigenous knowledge of fishers. One of which is that gleaners identify six species of scallops in Asid Gulf. These are the tiger, flying saucer/paypay, tikab puti, tikab de color, bukol-bukol and de color. Based on the study conducted by Soliman et. al 2004, there are only 5 commercially important scallops present in the gulf. These are the Decatopecten striatus or Tikab (now Bractechlamys vexillum), Chlamys senatoria nobilis or de color (now Mimachlamys sangiunea), Chlamys gloriosus or Tigre, Chlamys funebris or Tigre, and Chlamys macassarensis or paypay (now Annachlamys striatula). According to Soliman, Spondylus calcifer (bukol-bukol) is not considered as a commercially important scallop in the gulf. 

Avid lucky listeners Mark Darren Capistrano and Shirley Buenconsejo of Bantayan National High School, and Ariel Brigueles of San Lorenzo National High School won the program’s regular paukod (guessing game) segment. (Antonino Mendoza, Aileen Rances, Mariel Bernadas, Michael Borejon/BUTC)