Document Type

Article

Publication Title

Fisheries Research

Publisher

Elsevier

Publication Date

2-2016

Publisher location

Amsterdam, Netherlands

First Page

137

Last Page

152

Issue Number

6

Volume Number

177

Abstract/ Summary

A bioclimate envelope model was developed to evaluate the potential impacts of climate variability on American lobster (Homarus americanus). Bioclimate envelopes were defined by season-, sex-, and stage- specific Habitat Suitability Indices (HSI) based on (1) bottom temperature, (2) bottom salinity, and (3) depth. The species’ association to each of these three environmental attributes was expressed using Suitability Indices (SIs) calibrated by standardized lobster abundance derived from 14 years of fishery independent survey. A regional ocean model (Finite-Volume Community Ocean Model) was integrated with the HSI to hindcast spatiotemporal variability of bioclimate envelopes for American lobster in coastal waters of Maine and New Hampshire from 1978 to 2013. The model predictions indicated higher habitat suitability in inshore waters for both adult and juvenile lobsters. A statistically significant increasing trend in habitat suitability was observed for both sexes and stages (juvenile and adult) during the spring (April–June), while no significant trend in habitat suitability was observed in the fall (September–November). This study provides a modeling framework to reconstruct climatically suitable lobster ranges that can be used to formulate climate-based hypotheses for future studies of this species.

Citation/Publisher Attribution

Tanaka, K., & Chen, Y. (2016). Modeling spatiotemporal variability of the bioclimate envelope of Homarus americanus in the coastal waters of Maine and New Hampshire. Fisheries Research, 177, 137–152. http://doi.org/10.1016/j.fishres.2016.01.010

Publisher Statement

© 2016 Elsevier B.V.

DOI

DOI: 10.1016/j.fishres.2016.01.010

Version

post-print (i.e. final draft post-refereeing with all author corrections and edits)

Available for download on Tuesday, June 12, 2018

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