Engine size and proportion of catch kept affects fish catch in Pujada Bay, Davao Oriental

Arianne Kay  Liguez,

Engine size and proportion of catch kept affects fish catch in Pujada Bay, Davao Oriental

Abstract:

This study aimed to calculate the catch per unit effort (CPUE) and determine the status of finfish population in Pujada Bay. This was conducted through semi-structured interviews, focus group discussion and validation of actual catch sampling/logbook information taken from the interviews. Fishers mostly catch bigeye scad (Selar crumenopthalmus), flat needlefish (Ablennes hians), horseface unicornfish (Naso fageni), purple eyebrowed tuskfish (Choerodon zamboangae), silver pomfret (Pampus argenteus), and African red snapper (Lutjanus agennes) in barangay Tamisan and skipjack tuna (Katsuwonus pelamis) and yellowfin tuna (Thunnus albacares) in barangay Macambol. Results relating socioeconomic and fisheries variables to catch did not produce significant results. Further analysis using regression showed that normal catch was influenced by engine size and proportion of catch kept by fishers (P≤0.05). Analysis of CPUE of fishers in Tamisan also revealed significant differences with the best catch having highest CPUE (1.57 kg/hr), normal catch (0.62 kg/hr), and worst catch (0.27 kg/ hr) with haul time of 5.46 hours. This was also similar in the case of Macambol which showed significant differences in the catches e.g. best catch having the highest CPUE (7.08 kg/hr), normal (4.37 kg/hr), and worst catch (2.54 kg/hr) with haul time 9.23 hours. Most species caught in Pujada Bay between Tamisan and Macambol are piscivores, other species are molluscivores, omnivores, carnivores, planktivores, and herbivores. Engine size in horsepower and proportion of catch kept by fishers affected the number of fish catch. Continuous assessment of the fisheries resources in the area in the long-term provides better status data relevant for fisheries improvement policy.

References:

Alcala, A. C., and Russ, G. R. (2006). No-take marine reserves and reef fisheries management in the Philippines: a new people power revolution. AMBIO: AJournal of the Human Environment,35(5),245-254.
Anticamara, J. A., and Go, K. T. (2016 Spatio-temporal declines in Philippine fisheries and its implications to coastal municipal fishers’ catch and income. Frontiers in Marine Science, 3, 21.
Bigelow, K., Maunder, M., and Hinton, M. (2003). Comparison of deterministic and statistical habitat-based models to estimate effective longline effort and standardized CPUE for bigeye and yellowfin tuna. WP RG-3, SCTB, 16.
Daw, T. M., Cinner, J. E., McClanahan, T. R., Brown, K., Stead, S. M., Graham, N. A., and Maina, J. (2012). To fish or no to fish: factors at multiple scales affecting artisanal fishers’ readiness to exit a declining fishery. PLoS One, 7(2), e31460.
Garibaldi, L. (2012). The FAO global capture production database: a six-decade effort to catch the trend. Marine Policy, 36(3), 760-768.
Harley, D., Sleigh, A., and Ritchie, S. (2001). Ross River virus transmission, infection, and disease: a cross-disciplinary review. Clinical microbiology reviews, 14(4), 909-932.
Jones, H. G. (2004). Irrigation scheduling: advantages and pitfalls of plant-basedmethods. Journal of experimental botany, 55(407), 2427-2436.
Lavides, M.N., Polunin, N.V., Stead, S.M., Tabaranza, D.G., Comeros, M.T. and Dongallo, J.R., (2010). Finfish disappearances around Bohol, Philippines inferred from traditional ecological knowledge. Environ. Conservation. 36 (3), 235–244.
Lavides M.N., Molina E.P.V., de la Rosa G.E., Mill A.C., Rushton S.P., Stead S.M., and Polunin, N.V.C. (2016). Patterns Of Coral-Reef Finfish Species Disappearances Inferred From Fishers’ Knowledge In Global Epicentre Of Marine Shorefish Diversity. PLoSONE 11(5) https://doi:10.1371/journal.pone.0155752
Mamauag, S. S., Aliño, P. M., Gonzales, R. O. M., and Deocadez, M. R. (2009). Patterns of demersal fish distribution derived from line fishing experiment in Calauag Bay, Philippines. Philippine Agricultural Scientist, 92(4), 370-387.
Macusi, E. D., Abreo, N. A. S., and Babaran, R. P. (2017). Local ecological knowledge (LEK) on fish behavior around anchored FADs: the case of tuna purse seine and ringnet fishers from Southern Philippines. Frontiers in Marine Science, 4, 188.
Macusi, E. D., Liguez, A. K. O., Macusi, E. S., and Digal, L. N. (2021). Factors influencing catch and support for the implementation of the closed fishing season in Davao Gulf, Philippines. Marine Policy, 130, 104578.
Macusi, E. D., Laya-Og, M. E., and Abreo, N. A. S. (2019). Wild lobster (Panulirus ornatus) fry fishery in Balete bay, Davao Oriental: Catch trends and implications to fisheries management. Ocean & Coastal Management, 168, 340- 349.
Meeuwig, J., Samoilys, M., Erediano, J., and Koldewey, H. (2003). Fishers’ perceptions of the seahorse fishery in the central Philippines. In Interactive approaches and an evaluation of results Putting Fishers’ Knowledge to Work: Conference Proceedings: 27–30 August 2001 (pp. 228-204). Vancouver: FCRR.
Muallil, R. N., Cleland, D., and Aliño, P. M. (2013). Socioeconomic factors associated with fishing pressure in small-scale fisheries along the West Philippine Sea biogeographic region. Ocean & coastal management, 82, 27-33.
Mustapha, M. K. (2010). Heterotis niloticus (Cuvier, 1829), a Threatened Fish Species in Oyun Reservoir, Offa, Nigeria: The Need for its Conservation. Asian J. Exp.Biol. Sci., VOL 1(1)
Olsson, R. T., Azizi Samir, M. A. S., SalazarAlvarez, G., Belova, L., Ström, V., Berglund, L. A., and Gedde, U. W. (2010). Making flexible magnetic aerogels and stiff magnetic nanopaper using cellulose nanofibrils as templates. Nature nanotechnology, 5(8), 584-588.
Pauly, D. (2006). Major trends in small-scale marine fisheries, with emphasis on developing countries, and some implications for the social sciences. Maritime studies, (2). Philippine News Agency. (2019). Davao Gulf 3-month closed fishing season starts.
Reis-Filho, J. A., Freitas, R. H., Loiola, M., Leite, L., Soeiro, G., Oliveira, H. H., and Leduc, A. O. (2016). Traditional fisher perceptions on the regional disappearance of the largetooth sawfish Pristis pristis from the central coast of Brazil. Endangered Species Research,29(3),189-200.
Russ, G. R. (2002). Yet another review of marine reserves as reef fishery management tools. Coral reef fishes: dynamics and diversity in a complex ecosystem, 24, 421.
Salayo, N., Garces, L., Pido, M., Viswanathan, K., Pomeroy, R., Ahmed, M., and Masae, A. (2008). Managing excess capacity in small-scale fisheries: Perspectives from stakeholders in three Southeast Asian countries. Marine Polcy,32(4),692 -700.
Skurdal, J., Garnås, E., and Taugbøl, T. (2002). Management strategies, yield and population development of the noble crayfish Astacus astacus in Lake Steinsfjorden. Bulletin Français de la Pêche et de la Pisciculture, (367), 845-860.
Smith, I. R., Pauly, D., and Mines, A. N. (1983). Small-scale fisheries of San Miguel Bay, Philippines: options for management and research (Vol. 138). WorldFish.
Thiele, W., and Prado, J. (2011). Fishing gears and methods., In: Fisheries and Aquaculture topics [Internet].Rome: Food and Agriculture Organizations of the United Nations
Utzurrum, J. A. T., Reboton, C. T., and Calumpong, H. P. (2016). Fish Standing stock and catch from coral Reefs in three regions of the Philippines. Silliman Journal, 57(2).
Van Hoof, L., Salz, P., and Patijnlaan, B. (2001, April). Applying CPUE as management tool. In XIIIth Annual Conference of EAFE. Italy.
Westman, K., Savolainen, R., and Julkunen, M. (2002). Replacement of the native Crayfish astacus astacus by the Introduced species pacifastacus Leniusculus in a small, enclosed Finnish lake: a 30-year study. Ecography, 25(1), 53-73.
Zimmerman, J. K., and Palo, R. T. (2011). Reliability of catch per unit effort (CPUE) for evaluation of reintroduction programs–A comparison of the markrecapture method with standardized trapping. Knowledge and Management of Aquatic Ecosystems, (401), 07