Scope for growth of cultivated Pacific and Gulf of California populations of lion’s paw scallop Nodipecten subnodosus, and their reciprocal transplants

Scope for growth of cultivated Pacific and Gulf of California populations of lion’s paw scallop Nodipecten subnodosus, and their reciprocal transplants

ABSTRACT In the present work, the relative effects of the season (early vs. late summer), site (Gulf vs. Pacific study sites), the population of origin (Gulf vs. Pacific) and associated abiotic variables were determined in two geographically-separated Nodipecten subnodosus populations and their reci...

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Autores principales: Purce,Deborah N.S., Donovan,Deborah A., Maeda-Martínez,Alfonso N., Koch,Volker
Lenguaje:English
Publicado: Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2020
Materias:
Nodipecten subnodosus
growth
scope for growth
net growth efficiency
energy budget
open-flow system
Baja California
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2020000400538
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spelling oai:scielo:S0718-560X20200004005382020-09-23Scope for growth of cultivated Pacific and Gulf of California populations of lion’s paw scallop Nodipecten subnodosus, and their reciprocal transplantsPurce,Deborah N.S.Donovan,Deborah A.Maeda-Martínez,Alfonso N.Koch,Volker Nodipecten subnodosus growth scope for growth net growth efficiency energy budget open-flow system Baja California ABSTRACT In the present work, the relative effects of the season (early vs. late summer), site (Gulf vs. Pacific study sites), the population of origin (Gulf vs. Pacific) and associated abiotic variables were determined in two geographically-separated Nodipecten subnodosus populations and their reciprocal transplants, through the scope for growth (SFG) and net growth efficiency (K2) using a portable open-flow system. Results indicate that both energy acquisition and expenditure were significantly affected by season, site, and population factors. Scallop energy acquisition and growth efficiency were highest during the earlier, cooler part of the summer and higher at the Pacific site where food availability was highest. Significantly higher respiration rates were measured for the Pacific scallop population, leading to significantly lower net growth efficiency than scallops of Gulf origin, which indicates a physiological advantage for Gulf scallops during the suboptimal growth conditions present during summer months on both coasts of the Baja California peninsula. It may have important implications for aquaculture enterprises in this region, and may also confirm the genetic divergence between these two geographically separated populations. The advantages of the open-flow system for in situ ecophysiological studies in aquatic organisms are discussed.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.48 n.4 20202020-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2020000400538en10.3856/vol48-issue4-fulltext-2468
institution Scielo Chile
collection Scielo Chile
language English
topic Nodipecten subnodosus
growth
scope for growth
net growth efficiency
energy budget
open-flow system
Baja California
spellingShingle Nodipecten subnodosus
growth
scope for growth
net growth efficiency
energy budget
open-flow system
Baja California
Purce,Deborah N.S.
Donovan,Deborah A.
Maeda-Martínez,Alfonso N.
Koch,Volker
Scope for growth of cultivated Pacific and Gulf of California populations of lion’s paw scallop Nodipecten subnodosus, and their reciprocal transplants
description ABSTRACT In the present work, the relative effects of the season (early vs. late summer), site (Gulf vs. Pacific study sites), the population of origin (Gulf vs. Pacific) and associated abiotic variables were determined in two geographically-separated Nodipecten subnodosus populations and their reciprocal transplants, through the scope for growth (SFG) and net growth efficiency (K2) using a portable open-flow system. Results indicate that both energy acquisition and expenditure were significantly affected by season, site, and population factors. Scallop energy acquisition and growth efficiency were highest during the earlier, cooler part of the summer and higher at the Pacific site where food availability was highest. Significantly higher respiration rates were measured for the Pacific scallop population, leading to significantly lower net growth efficiency than scallops of Gulf origin, which indicates a physiological advantage for Gulf scallops during the suboptimal growth conditions present during summer months on both coasts of the Baja California peninsula. It may have important implications for aquaculture enterprises in this region, and may also confirm the genetic divergence between these two geographically separated populations. The advantages of the open-flow system for in situ ecophysiological studies in aquatic organisms are discussed.
author Purce,Deborah N.S.
Donovan,Deborah A.
Maeda-Martínez,Alfonso N.
Koch,Volker
author_facet Purce,Deborah N.S.
Donovan,Deborah A.
Maeda-Martínez,Alfonso N.
Koch,Volker
author_sort Purce,Deborah N.S.
title Scope for growth of cultivated Pacific and Gulf of California populations of lion’s paw scallop Nodipecten subnodosus, and their reciprocal transplants
title_short Scope for growth of cultivated Pacific and Gulf of California populations of lion’s paw scallop Nodipecten subnodosus, and their reciprocal transplants
title_full Scope for growth of cultivated Pacific and Gulf of California populations of lion’s paw scallop Nodipecten subnodosus, and their reciprocal transplants
title_fullStr Scope for growth of cultivated Pacific and Gulf of California populations of lion’s paw scallop Nodipecten subnodosus, and their reciprocal transplants
title_full_unstemmed Scope for growth of cultivated Pacific and Gulf of California populations of lion’s paw scallop Nodipecten subnodosus, and their reciprocal transplants
title_sort scope for growth of cultivated pacific and gulf of california populations of lion’s paw scallop nodipecten subnodosus, and their reciprocal transplants
publisher Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate 2020
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2020000400538
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AT donovandeboraha scopeforgrowthofcultivatedpacificandgulfofcaliforniapopulationsoflion8217spawscallopnodipectensubnodosusandtheirreciprocaltransplants
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