Length-weight relationships of 15 mesopelagic shrimp species caught during exploratory surveys off the Canary Islands (central eastern Atlantic)

Airam Guerra-Marrero; Catalina Caballero-Méndez; Ana Espino-Ruano; Lorena Couce-Montero; David Jiménez-Alvarado; José J.  Castro

doi:10.3989/scimar.05383.081

Authors

Airam Guerra-Marrero IU-ECOAQUA, University of Las Palmas de Gran Canaria https://orcid.org/0000-0002-8226-1786
Catalina Caballero-Méndez IU-ECOAQUA, University of Las Palmas de Gran Canaria https://orcid.org/0009-0004-2756-6917
Ana Espino-Ruano IU-ECOAQUA, University of Las Palmas de Gran Canaria https://orcid.org/0000-0002-9493-0289
Lorena Couce-Montero IU-ECOAQUA, University of Las Palmas de Gran Canaria https://orcid.org/0000-0002-5132-6698
David Jiménez-Alvarado IU-ECOAQUA, University of Las Palmas de Gran Canaria https://orcid.org/0000-0002-7164-8125
José J. Castro IU-ECOAQUA, University of Las Palmas de Gran Canaria https://orcid.org/0000-0002-0461-5489

DOI:

https://doi.org/10.3989/scimar.05383.081

Keywords:

relative growth, Oplophoroidea, Penaoidea, Sergestoidea, Atlantic Ocean

Abstract

Length-weight relationships (LWRs) were estimated for 15 mesopelagic shrimp species off the Canary Islands (central eastern Atlantic). Total length, cephalothorax length and total weight were taken for individuals collected during three research campaigns using a commercial semi-pelagic trawl net. The most represented families among the collected species were Sergestidae and Oplophoridae, with eight and three species, respectively. Overall, 60% of the species showed isometric growth, 33.3% negative allometry and 6.7% positive allometry. These 15 LWRs are the first contribution on mesopelagic shrimp species from the northwest Africa region, contributing to knowledge on the relative growth of these crustaceans.

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