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Species abundance distribution of Mud clam (Polymesoda erosa) in selected Mangrove wetlands of Butuan Bay, Philippines

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Research Paper 01/09/2017
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Species abundance distribution of Mud clam (Polymesoda erosa) in selected Mangrove wetlands of Butuan Bay, Philippines

Marlon V. Elvira, Joycelyn C. Jumawan
J. Bio. Env. Sci.11( 3), 1-6, September 2017.
Certificate: JBES 2017 [Generate Certificate]
Key: Adult speciesBequibel shell middenButuan BayJuvenile SpeciesLength-Weight RelationsMangrove WetlandSustainable Utilization

Abstract

Abundance distribution of mud clam (Polymesoda erosa) was determined in selected mangrove wetlands of Butuan Bay, Philippines. Out of 241 collected individuals of P. erosa in site 1 (Pagatpatan); 29 were juveniles and 212 were adults. Site 2 (Camagong) had 238 collected individuals of P. erosa where 79 were juveniles and 159 were the adults. The total length (TL) of P. erosa in site 1 ranged from 4.2 cm to 8.0 cm with a mean of 4.75 cm and the body weight (BW) of 5.33 g to 168.53 g with a mean of 76.43 g. The TL of P. erosa in site 2 ranged from 2.9 cm to 8.0 cm with a mean of 4.29 cm and the BW of 1.36 g to 174.85 g. The equation W = aLᵇ was used for length-weight relationships (LWRs) analysis expressed as Log W = b log L + log a. Log W = 1.240 + 3.116 (r² = 0.916) was used to express the pooled LWRs of P. erosa in the two sites. Thus, more juveniles and fewer adults ofP. erosa with higher weight individuals were noted at site 2 compared to site 1 having fewer juveniles with higher adult individuals but have lighter weights.

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