Where are the mussels on Cook Strait (New Zealand) shores? Low seston quality as a possible factor limiting multi-species distributions

Gardner, Jonathan P. A.

doi:10.3354/meps194123

Cited by 86 publications

(151 citation statements)

References 20 publications

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“…Wellington Harbour is a semienclosed bay that receives significant freshwater inputs from the Hutt River (Gardner 2000).…”

Section: Methodsmentioning

confidence: 99%

Regional variation in larval retention and dispersal drives recruitment patterns in a temperate reef fish

Swearer

Shima²

2010

Mar. Ecol. Prog. Ser.

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Although there is wide appreciation for the influence of variable larval transport on recruitment, few studies have investigated the relationship between recruitment intensity and the origin(s) of recruits. We evaluate this relationship for the common triplefin Forsterygion lapillum in Wellington Harbour (a semi-enclosed bay) and the adjacent open coast of North Island, New Zealand. As the harbour is productive, with many F. lapillum adults, we predicted the harbour would be an important source of recruitment for both regions. We estimated larval origins and dispersal histories using embryonic and larval otolith chemistry, respectively, with differences in otolith elemental composition consistent with birth and/or development in either harbour or open ocean waters. In the harbour, recruitment was greatest when locally spawned larvae were retained. Although large recruitment pulses to the open coast were comprised mostly of larvae originating from the open coast, 72% of all recruits to the south coast were actually spawned in the harbour. Dispersal of larvae from the harbour was frequent, but in low numbers, and was unrelated to opportunities for transport from the harbour. Given recent evidence for differences in larval growth between regions, we suggest that (1) faster larval growth combined with nearshore larval distributions result in high recruitment to the harbour and moderate, but demographically important, dispersal from the harbour to the open coast. In contrast, we suggest that (2) the combination of strong tidal currents in Cook Strait and slower larval growth result in lower recruitment and greater transport of larvae among open coast populations. The mechanisms that underlie such contextdependent dispersal have important implications for patterns of connectivity.KEY WORDS: Recruitment variability · Larval dispersal · Natal origin · Self-recruitment · Connectivity · Member-vagrant hypothesis · Drift -retention dichotomy · Reef fish Resale or republication not permitted without written consent of the publisher

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“…Wellington Harbour is a semienclosed bay that receives significant freshwater inputs from the Hutt River (Gardner 2000).…”

Section: Methodsmentioning

confidence: 99%

Regional variation in larval retention and dispersal drives recruitment patterns in a temperate reef fish

Swearer

Shima²

2010

Mar. Ecol. Prog. Ser.

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“…Johnston & Leggett 2002, Gosselin & Rehak 2007, Shima & Swearer 2009). Studies spanning the last 12 yr have demonstrated that dramatic differences can be observed between both of the locations examined, with Wellington Harbour having greater densities and recruitment rates of invertebrates and fish (Phillips & Hutchison 2008, Shima & Swearer 2009, Demello & Phillips 2011, higher stocks of phytoplankton and particulate concentration (Gardner 2000, Helson et al 2007), higher quality and faster growing larval fish (Shima & Swearer 2009, and higher whelk growth rates (N. Phillips unpubl. data), all suggesting a more productive environment in Wellington Harbour.…”

Section: Hatchling Sizementioning

confidence: 99%

“…the semienclosed and nutrient-rich Wellington Harbor vs. the exposed and low productivity Wellington southern coast. Compared to the nearby southern coast, Wellington Harbour has denser and more speciesrich intertidal communities with greater recruitment rates of fish and invertebrates (Phillips & Hutchison 2008, Shima & Swearer 2009, Demello & Phillips 2011, higher standing stocks of phytoplankton and concentrations of particulates (Gardner 2000, Helson et al 2007), higher quality and faster growing larval reef fish (Shima & Swearer 2009, and higher growth rates for several species of whelks (N. Phillips unpubl. data).…”

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confidence: 99%

Offspring size and maternal environments mediate the early juvenile performance of two congeneric whelks

Carrasco¹,

Phillips²,

Pérez‐Matus³

2012

Mar. Ecol. Prog. Ser.

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Offspring size variation can have pervasive ecological and evolutionary implications for both offspring and mother, affecting an organism's performance throughout its life. Using 2 marine intertidal whelk species Cominella virgata and C. maculosa as model organisms, we examined how different maternal environments and contrasting hatchling size influence juvenile performance. The average size of field-collected hatchlings greatly differed between the species and at different scales of variation (i.e. among sites). Species-specific differences in hatching size were reflected in juvenile performance. Overall, C. virgata with larger hatchlings (~3 mm), exhibited faster growth rates and higher survival than the smaller C. maculosa (~1.5 mm). Desiccation treatment did not affect the performance of fed juveniles; however, large hatchlings had higher growth rates than small conspecifics for both species. Starved hatchlings of both species performed more poorly than fed ones; however, species-specific and size differences were less significant for the evaluated traits, suggesting a non-size-related allocation of resources and similar resource utilization during starvation conditions (i.e. within species). As has been described for many taxa, large offspring often perform better than small conspecifics; however, because this performance is likely context-dependent, understanding the importance of different scales of variation is crucial for determining when variation in size is an advantage or a disadvantage in terms of an organism's performance. KEY WORDS: Progeny size · Reproductive strategies · Environmental variation · Phenotypic plasticity · Offspring size-fitness · Cominella Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 459: [73][74][75][76][77][78][79][80][81][82][83] 2012 to either non-adaptive stochastic variation in provisioning or to a maternal bet-hedging strategy in unpredictable environments (see Kamel et al. 2010).The ability of mothers to anticipate the environment that their offspring will experience may therefore mediate variation in offspring size. When mothers are able to predict their offspring's environment, the expectation is that plasticity in mean offspring size will be favored ('anticipatory' maternal effects;Marshall & Uller 2007). Conversely, when mothers are unable to predict the environment, the expected outcome is that increases in the variation of offspring size will ensure that some offspring will be optimal for the environment (Crean & Marshall 2009). Regardless of the strategy, the division of finite reproductive resources should ultimately result in an optimal equilibrium between the offspring fitness and the maximization of the parental fitness, and therefore, simple models have typically suggested that as the relationship between progeny size and progeny fitness changes, the optimal size of progeny is also expected to change as environmental conditions vary (Fox 2000, Walker et al. 2003. Examples provided by Allen et al. (...

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“…(1) We determined the concentrations of food available for mussels in ambient seawater. The role of variation in primary productivity and ambient food concentrations in explaining the structure of rocky shore communities has been largely overlooked (Bustamante et al 1995) but its potential influence on abundance and size structure of populations has been highlighted in recent years (Bustamante & Branch 1996, Gardner 2000, Menge & Branch 2001, Morgan 2001. (2) We investigated the strength of the relationship between abundance of sublittoral Baltic blue mussels and exposure regimes.…”

Section: Introductionmentioning

confidence: 99%

Effects of wave exposure on the sublittoral distribution of blue mussels Mytilus edulis ina heterogeneous archipelago

Westerbom¹,

Jattu²

2006

Mar. Ecol. Prog. Ser.

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Where are the mussels on Cook Strait (New Zealand) shores? Low seston quality as a possible factor limiting multi-species distributions

Cited by 86 publications

References 20 publications

Regional variation in larval retention and dispersal drives recruitment patterns in a temperate reef fish

Regional variation in larval retention and dispersal drives recruitment patterns in a temperate reef fish

Offspring size and maternal environments mediate the early juvenile performance of two congeneric whelks

Effects of wave exposure on the sublittoral distribution of blue mussels Mytilus edulis ina heterogeneous archipelago

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