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.
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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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